/**************************************************************************** ** ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). ** All rights reserved. ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the documentation of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** No Commercial Usage ** This file contains pre-release code and may not be distributed. ** You may use this file in accordance with the terms and conditions ** contained in the Technology Preview License Agreement accompanying ** this package. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 2.1 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL included in the ** packaging of this file. 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These rights are described in the Nokia Qt LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** If you have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. ** ** ** ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ /*! \page index.html \nextpage QDoc Manual \title QDoc Manual - Table of Contents \list \o \l{QDoc Manual} \o \l{QDoc Commands} \list \o \l{Markup Commands} \o \l{Text Formatting Commands} \o \l{Document Structuring Commands} \o \l{Verbatim Code Commands} \o \l{Quoting External Code Commands} \list \o \l{Example File} \endlist \o \l{Linking Commands} \o \l{Graphic Commands} \o \l{Container Commands} \o \l{Document Contents Commands} \o \l{Miscellaneous Commands} \list \o \l{signalandslots.qdocinc} \o \l{objectmodel.qdocinc} \o \l{layoutmanagement.qdocinc} \endlist \o \l{Topical Commands} \o \l{Contextual Commands} \o \l{Navigation Commands} \o \l{Status Commands} \o \l{Thread Support Commands} \o \l{Relating Commands} \o \l{Grouping Commands} \o \l{Title Commands} \endlist \o \l{QDoc Configuration} \list \o \l{General Variables} \o \l{Creating Help Project Files} \o \l{C++ Specific Variables} \o \l{HTML Specific Variables} \o \l{Supporting Derived Projects} \o \l{QDoc Compatibility} \o \l{qt.qdocconf} \o \l{minimum.qdocconf} \endlist \o \l{QDoc Commands - Alphabetical List} \endlist */ /*! \page 01-qdoc-manual.html \contentspage QDoc Manual - Table of Contents \previouspage QDoc Manual - Table of Contents \nextpage QDoc Commands \title QDoc Manual QDoc is the internal tool used by Qt Development Frameworks for generating documentation. This document is a reference for QDoc command syntax and configuration. \section1 Overview \list I \o \section2 \l {QDoc Commands} \l {QDoc Commands - Alphabetical List}{A complete alphabetical list}. There are two main categories of commands for QDoc: markup commands and meta-commands. The markup commands indicate the generated documentation's appearance and logical structure. The meta-commands provide information about the document as well as the documented item. The meta-commands can be further categorized as topical commands and contextual commands. \list \o \l {Markup Commands} \list \o \l {Text Formatting Commands}{Text Formatting} \o \l {Document Structuring Commands}{Document Structuring} \o \l {Verbatim Code Commands}{Verbatim Code} \o \l {Quoting External Code Commands}{Quoting External Code} \o \l {Linking Commands}{Linking} \o \l {Graphic Commands}{Graphic} \o \l {Container Commands}{Container} \o \l {Document Contents Commands}{Document Contents} \o \l {Miscellaneous Commands}{Miscellaneous} \endlist \o \l {Topical Commands} \o \l {Contextual Commands} \list \o \l {Navigation Commands}{Navigation} \o \l {Status Commands}{Status} \o \l {Thread Support Commands}{Thread Support} \o \l {Relating Commands}{Relating} \o \l {Grouping Commands}{Grouping} \o \l {Title Commands}{Title} \endlist \endlist \endlist \list II \o \section2 \l {QDoc Configuration} When running QDoc to generate the documentation, you must specify a configuration file on the command line. The configuration file is a list of entries of entries of the form "variable = value". \list \o \l {Configuration Variables} \o \l {Configuration File Examples} \endlist Some particular configuration variables allow you to use QDoc to support Qt-based projects; i.e to make projects, such as Qt Solutions, contain references to the online Qt documentation. \list \o \l {Supporting Derived Projects} \endlist QDoc is a tool that constantly evolves to suit our needs, for that reason there are some compatibility issues between old and new practices. \list \o \l {QDoc Compatibility} \endlist \endlist */ /*! \page 02-qdoc-commands.html \previouspage QDoc Manual \contentspage QDoc Manual - Table of Contents \nextpage Markup Commands \title QDoc Commands There are two main categories of commands for QDoc: markup commands and meta-commands. The markup commands indicate the generated documentation's visual appearance and logical structure. The meta-commands provide information about the documentation unit as well as the documented item. The meta-commands can be further categorized as topical commands and contextual commands. \section1 Alphabetical List A complete \l{QDoc Commands - Alphabetical List } {alphabetical list of the QDoc commands}. \section1 Categories \list \o \l {Markup Commands} \o \l {Topical Commands} \o \l {Contextual Commands} \endlist */ /*! \page 03-qdoc-commands-markup.html \contentspage QDoc Manual - Table of Contents \previouspage QDoc Commands \nextpage Text Formatting Commands \title Markup Commands The markup commands indicate the generated documentation's visual appearance and logical structure. \section1 Alphabetical List \l {04-qdoc-commands-textformatting.html#backslash}{\\\\}, \l {04-qdoc-commands-textformatting.html#a}{\\a}, \l {11-qdoc-commands-documentcontents.html#abstract}{\\abstract}, \l {06-qdoc-commands-verbatimcode.html#badcode}{\\badcode}, \l {04-qdoc-commands-textformatting.html#bold}{\\bold}, \l {11-qdoc-commands-documentcontents.html#brief}{\\brief}, \l {04-qdoc-commands-textformatting.html#c}{\\c}, \l {09-qdoc-commands-graphic.html#caption}{\\caption}, \l {05-qdoc-commands-documentstructuring.html#chapter}{\\chapter}, \l {06-qdoc-commands-verbatimcode.html#code}{\\code}, \l {07-0-qdoc-commands-quoting.html#codeline}{\\codeline}, \l {07-0-qdoc-commands-quoting.html#dots}{\\dots}, \l {12-0-qdoc-commands-miscellaneous.html#else}{\\else}, \l {12-0-qdoc-commands-miscellaneous.html#endif}{\\endif}, \l {12-0-qdoc-commands-miscellaneous.html#expire}{\\expire}, \l {11-qdoc-commands-documentcontents.html#footnote}{\\footnote}, \l {12-0-qdoc-commands-miscellaneous.html#generatelist}{\\generatelist}, \l {10-qdoc-commands-container.html#header}{\\header}, \l {04-qdoc-commands-textformatting.html#i}{\\i}, \l {12-0-qdoc-commands-miscellaneous.html#if}{\\if}, \l {09-qdoc-commands-graphic.html#image}{\\image}, \l {12-0-qdoc-commands-miscellaneous.html#include}{\\include}, \l {09-qdoc-commands-graphic.html#inlineimage}{\\inlineimage}, \l {08-qdoc-commands-linking.html#keyword}{\\keyword}, \l {08-qdoc-commands-linking.html#l}{\\l}, \l {11-qdoc-commands-documentcontents.html#legalese}{\\legalese}, \l {10-qdoc-commands-container.html#list}{\\list}, \l {12-0-qdoc-commands-miscellaneous.html#meta}{\\meta}, \l {06-qdoc-commands-verbatimcode.html#newcode}{\\newcode}, \l {10-qdoc-commands-container.html#o}{\\o}, \l {06-qdoc-commands-verbatimcode.html#oldcode}{\\oldcode}, \l {12-0-qdoc-commands-miscellaneous.html#omit}{\\omit}, \l {05-qdoc-commands-documentstructuring.html#part}{\\part}, \l {07-0-qdoc-commands-quoting.html#printline}{\\printline}, \l {07-0-qdoc-commands-quoting.html#printto}{\\printto}, \l {07-0-qdoc-commands-quoting.html#printuntil}{\\printuntil}, \l {11-qdoc-commands-documentcontents.html#quotation}{\\quotation}, \l {07-0-qdoc-commands-quoting.html#quotefile}{\\quotefile}, \l {07-0-qdoc-commands-quoting.html#quotefromfile}{\\quotefromfile}, \l {12-0-qdoc-commands-miscellaneous.html#raw}{\\raw}, \l {10-qdoc-commands-container.html#row}{\\row}, \l {08-qdoc-commands-linking.html#sa}{\\sa}, \l {05-qdoc-commands-documentstructuring.html#sectionOne}{\\section1}, \l {05-qdoc-commands-documentstructuring.html#sectionTwo}{\\section2}, \l {05-qdoc-commands-documentstructuring.html#sectionThree}{\\section3}, \l {05-qdoc-commands-documentstructuring.html#sectionFour}{\\section4}, \l {07-0-qdoc-commands-quoting.html#skipline}{\\skipline}, \l {07-0-qdoc-commands-quoting.html#skipto}{\\skipto}, \l {07-0-qdoc-commands-quoting.html#skipuntil}{\\skipuntil}, \l {07-0-qdoc-commands-quoting.html#snippet}{\\snippet}, \l {04-qdoc-commands-textformatting.html#sub}{\\sub}, \l {04-qdoc-commands-textformatting.html#sup}{\\sup}, \l {10-qdoc-commands-container.html#table}{\\table}, \l {11-qdoc-commands-documentcontents.html#tableofcontents} {\\tableofcontents}, \l {08-qdoc-commands-linking.html#target}{\\target}, \l {04-qdoc-commands-textformatting.html#tt}{\\tt}, \l {04-qdoc-commands-textformatting.html#underline}{\\underline}, \l {12-0-qdoc-commands-miscellaneous.html#raw}{\\unicode}, \l {11-qdoc-commands-documentcontents.html#warning}{\\warning} \section1 Categories \list \o \l {Text Formatting Commands} \o \l {Document Structuring Commands} \o \l {Verbatim Code Commands} \o \l {Quoting External Code Commands} \o \l {Linking Commands} \o \l {Graphic Commands} \o \l {Container Commands} \o \l {Document Contents Commands} \o \l {Miscellaneous Commands} \endlist */ /*! \page 04-qdoc-commands-textformatting.html \contentspage QDoc Manual - Table of Contents \previouspage Markup Commands \nextpage Document Structuring Commands \title Text Formatting Commands The text formatting commands indicate how the regular text in the documentation is rendered. \section1 Alphabetical List \l {04-qdoc-commands-textformatting.html#backslash}{\\\\}, \l {04-qdoc-commands-textformatting.html#a}{\\a}, \l {04-qdoc-commands-textformatting.html#bold}{\\bold}, \l {04-qdoc-commands-textformatting.html#c}{\\c}, \l {04-qdoc-commands-textformatting.html#i}{\\i}, \l {04-qdoc-commands-textformatting.html#sub}{\\sub}, \l {04-qdoc-commands-textformatting.html#sup}{\\sup}, \l {04-qdoc-commands-textformatting.html#tt}{\\tt}, \l {04-qdoc-commands-textformatting.html#underline}{\\underline} \section1 Command Descriptions \table \header \o Command \o Description \row \o \bold \\\\ \target backslash \o \bold {The \\\\ command expands to a single backslash.} QDoc commands always start with a backslash alone. To display an actual backslash in the text you need to type two of the kind. If you want to display two backslashes, you need to type four, and so forth. For example: \code / *! The \\\\ command is useful if you want a backslash to appear verbatim, for example, writing C:\\windows\\home\\. * / \endcode will be rendered as \quotation The \\\\ command is useful if you want a backslash to appear verbatim, for example, writing C:\\windows\\home\\. \endquotation However, if you want your text to appear in a typewriter font as well, you can use the \l {c}{\\c} command instead, which accepts and renders the backslash as any other character. For example: \code / *! The \\c command is useful if you want a backslash to appear verbatim, and the word that contains it written in a typewriter font, like this: \c {C:\windows\home\}. * / \endcode will be rendered as \quotation The \\c command is useful if you want a backslash to appear verbatim, and the word that contains it written in a typewriter font, like this: \c {C:\windows\home\}. \endquotation \row \o \bold \\a \target a \o \bold {The \\a command indicates that the next word is a parameter when documenting functions.} Warnings are emitted when function parameters are undocumented or misspelled, so whenever you write documentation for functions you should make sure you mention all the parameters and precede each of these by the \\a command. The parameter is then rendered in italic. For example: \code / *! Constructs a line edit containing the text \a contents. The \a parent parameter is sent to the QWidget constructor. * / QLineEdit::QLineEdit(const QString &contents, QWidget *parent) :QWidget(parent) { ... } \endcode will be rendered as \quotation \bold {QLineEdit::QLineEdit ( const QString & contents, QWidget *parent )} Constructs a line edit containing the text \a contents. The \a parent parameter is sent to the QWidget constructor. \endquotation The \\a command follows the same conventions as the \l {i}{\\i} command for \l {argument}{punctuation, parentheses and use of braces} for the argument. However, a parameter is always a single word, so braces are rarely necessary. And for the same reason, parentheses seldom occur. \row \o \bold \\c \target c \o \bold {The \\c command can be used to render variables, user-defined classes and C++ keywords like \c int, \c for, etc.} The command renders its argument using a typewriter font. For example: \code / *! The \c AnalogClock class provides a clock widget with hour and minute hands that is automatically updated every few seconds. * / \endcode will be rendered as \quotation The \c AnalogClock class provides a clock widget with hour and minute hands that is automatically updated every few seconds. \endquotation The \\c command follows the same conventions as the \l {i}{\\i} command for \l {argument}{punctuation, parentheses and use of braces} for the argument. The \\c command accepts the special character \c \ within its argument, i.e. it renders it as a normal character. So if you want to use nested commands, you must use the \l {tt}{teletype (\\tt)} command instead. See also \l {tt}{\\tt} and \l {code}{\\code}. \row \o \bold \\tt \target tt \o \bold {The \\tt command can be used to render variables, user-defined classes and C++ keywords like \c int, \c for, etc.} The \\tt command behaves just like the \l {c}{\\c} command, except that \\tt parses QDoc commands (like \l {i}{\\i}, \l {bold}{\\bold} and \l {underline}{\\underline}) contained within its argument. The command renders its argument using a monospace font. For example: \code / *! After \c setupUi() populates the main container with child widgets it scans the main container's list of slots for names with the form \tt{on_\i{objectName}_\i{signalName}().} * / \endcode will be rendered as \quotation After \c setupUi() populates the main container with child widgets it scans the main container's list of slots for names with the form \tt{on_\i{objectName}_\i{signalName}().} \endquotation The \\tt command follows the same conventions as the \l {i}{\\i} command for \l {argument}{punctuation, parentheses and use of braces} for the argument. See also \l {c}{\\c}. \row \o \bold \\bold \target bold \o \bold {The \\bold command renders its argument using a bold font.} For example: \code / *! This is regular text; \bold {this text is rendered using the \\bold command}. * / \endcode will be rendered as \quotation This is regular text; \bold {this text is rendered using the \\bold command}. \endquotation The command follows the same conventions as the \l {i}{\\i} command for \l {argument}{punctuation, parentheses and use of braces} for the argument. \row \o \bold \\i \target i \o \bold {The \\i command renders its argument in italic.} \warning This is preliminary functionality. For more information, see the \l {26-qdoc-commands-compatibility.html#i-versus-e}{compatibility} section. \target argument Normally, a command argument ends at the next whitespace [1], but braces can be used to group words [2]. For example: \code / *! Here, we render \i {a few words} in italic. * / \endcode will be rendered as \quotation Here, we render \i {a few words} in italic. \endquotation If you want to use other QDoc commands within an argument that contains spaces, you always need to enclose the argument with braces. But QDoc is smart enough to count parentheses [3], so you don't need braces in cases like this: \code / *! An argument can sometimes contain whitespaces, for example: \i QPushButton(tr("A Brand New Button")) * / \endcode will be rendered as \quotation An argument can sometimes contain whitespaces, for example: \i QPushButton(tr("A Brand New Button")) \endquotation Finally, trailing punctuation is not included in an argument [4], nor is 's [5] \raw HTML
QDoc Syntax Generated Documentation
1 A variation of a command button is a \i menu button. A variation of a command button is a menu button.
2 The QPushButton widget provides a \i {command button}. The QPushButton widget provides a command button.
3 Another class of buttons are option buttons \i (see QRadioButton). Another class of buttons are option buttons (see QRadioButton).
4 A push button emits the signal \i clicked(). A push button emits the signal clicked().
5 The \i QPushButton's checked property is false by default. The QPushButton's checked property is false by default.
\endraw \row \o \bold \\sub \target sub \o \bold {The \\sub command renders its argument lower than the baseline of the regular text, using a smaller font.} For example: \code / *! Definition (Range): Consider the sequence {x\sub n}\sub {n > 1} . The set {x\sub 2, x\sub 3, x\sub 4, ...} = {x\sub n ; n = 2, 3, 4, ...} is called the range of the sequence. * / \endcode will be rendered as \quotation Definition (Range): Consider the sequence {x\sub n}\sub {n > 1} . The set {x\sub 2, x\sub 3, x\sub 4, ...} = {x\sub n ; n = 2, 3, 4, ...} is called the range of the sequence. \endquotation The \\sub command follows the same conventions as the \l {i}{\\i} command for \l {argument}{punctuation, parentheses and use of braces} for the argument. \row \o \bold \\sup \target sup \o \bold {The \\sup command renders its argument higher than the baseline of the regular text, using a smaller font.} For example: \code / *! The series 1 + a + a\sup 2 + a\sup 3 + a\sup 4 + ... is called the \i {geometric series}. * / \endcode will be rendered as \quotation The series 1 + a + a\sup 2 + a\sup 3 + a\sup 4 + ... is called the \i {geometric series}. \endquotation The \\sup command follows the same conventions as the \l {i}{\\i} command for \l {argument}{punctuation, parentheses and use of braces} for the argument. \row \o \bold \\underline \target underline \o \bold {The \\underline command renders its argument underlined.} For example: \code / *! The \underline {F}ile menu gives the users the possibility to open, and edit, an existing file, save a new or modified file, and exit the application. * / \endcode will be rendered as \quotation The \underline {F}ile menu gives the users the possibility to open, and edit, an existing file, save a new or modified file, and exit the application. \endquotation The \\underline command follows the same conventions as the \l {i}{\\i} command for \l {argument}{punctuation, parentheses and use of braces} for the argument. \endtable */ /*! \page 05-qdoc-commands-documentstructuring.html \previouspage Text Formatting Commands \contentspage QDoc Manual - Table of Contents \nextpage Verbatim Code Commands \title Document Structuring Commands The document structuring commands divide the documentation into sections. In total, there are six levels of sections in QDoc: \c \part, \c \chapter, \c \section1, \c \section2, \c \section3 and \c \section4. \c \section1 to \c \section4 correspond to the traditional section, subsection, subsubsection and subsubsubsection. \section1 Alphabetical List \l {05-qdoc-commands-documentstructuring.html#chapter}{\\chapter}, \l {05-qdoc-commands-documentstructuring.html#part}{\\part}, \l {05-qdoc-commands-documentstructuring.html#sectionOne}{\\section1}, \l {05-qdoc-commands-documentstructuring.html#sectionTwo}{\\section2}, \l {05-qdoc-commands-documentstructuring.html#sectionThree}{\\section3}, \l {05-qdoc-commands-documentstructuring.html#sectionFour}{\\section4} \section1 Command Descriptions \table \header \o Command \o Description \row \o \bold \\part \target part \o \bold {The \\part command is intended for use in larger documents, and divides the document into parts.} In general a document structuring command considers everything that follows it until the first line break as its argument. The argument is rendered as the unit's title. If the title needs to be spanned over several lines, make sure that each line (except the last one) is ended with a backslash. In total, there are six levels of sections in QDoc: \c \part, \c \chapter, \c \section1, \c \section2, \c \section3 and \c \section4. \c \section1 to \c \section4 correspond to the traditional section, subsection, subsubsection and subsubsubsection. There is a strict ordering of the section units: \code part | chapter | section1 | section2 | section3 | section4 \endcode For example, a \c section1 unit can only appear as the top level section or inside a \c chapter unit. Skipping a section unit, for example from \c part to \c section1, is not allowed. You can \i begin with either of the three: \c part, \c chapter or \c section1. For example: \code / *! \part Basic Qt This is the first part. \chapter Getting Started This is the first part's first chapter. \section1 Hello Qt This is the first chapter's first section. \section1 Making Connections This is the first chapter's second section. \section1 Using the Reference Documentation This is the first chapter's third section. \chapter Creating Dialogs This is the first part's second chapter. \section1 Subclassing QDialog This is the second chapter's first section. ... \part Intermediate Qt This is the second part. \chapter Layout Management This is the second part's first chapter. \section1 Basic Layouts This is the first chapter's first section. ... * / \endcode will be rendered as \quotation \raw HTML

Basic Qt

This is the first part.

Getting Started

This is the first part's first chapter.

Hello Qt

This is the first chapter's first section.

Making Connections

This is the first chapter's second section.

Using the Reference Documentation

This is the first chapter's third section.

Creating Dialogs

This is the first part's second chapter.

Subclassing QDialog

This is the second chapter's first section.

...

Intermediate Qt

This is the second part.

Layout Management

This is the second part's first chapter.

Basic Layouts

This is the first chapter's first section.

... \endraw \endquotation Each section level is a logical unit within the document. Its title will appear on the table of contents generated by the \l {11-qdoc-commands-documentcontents.html#tableofcontents} {\\tableofcontents} command. For example: \code / *! Contents: \tableofcontents ... * / \endcode will expand to \quotation \raw HTML

Contents:

... \endraw \endquotation \row \o \bold \\chapter \target chapter \o \bold {The \\chapter command is intended for use in larger documents, and divides the document into chapters.} See \l{part}{\\part} for an explanation of the various section units, command argument and rendering. \row \o \bold \\section1 \target sectionOne \o \bold {The \\section1 command starts a new section.} See \l{part}{\\part} for an explanation of the various section units, command argument and rendering. \row \o \bold \\section2 \target sectionTwo \o \bold {The \\section2 command starts a new section.} See \l{part}{\\part} for an explanation of the various section units, command argument and rendering. \row \o \bold \\section3 \target sectionThree \o \bold {The \\section3 command starts a new section.} See \l{part}{\\part} for an explanation of the various section units, command argument and rendering. \row \o \bold \\section4 \target sectionFour \o \bold {The \\section4 command starts a new section.} See \l{part}{\\part} for an explanation of the various section units, command argument and rendering. \endtable */ /*! \page 06-qdoc-commands-verbatimcode.html \previouspage Document Structuring Commands \contentspage QDoc Manual - Table of Contents \nextpage Quoting External Code Commands \title Verbatim Code Commands The following commands are used to render verbatim code within the documentation. The code is rendered on a new line, using a typewriter font and the standard indentation. \bold{Note:} Although all of these commands can be used to present C++ code, the \l{07-0-qdoc-commands-quoting.html#snippet}{\\snippet} and \l{07-0-qdoc-commands-quoting.html#codeline}{\\codeline} commands should be used in preference to the others when presenting valid code. This allows auxilliary tools for Qt language bindings to substitute the relevant code snippets in place of the C++ ones. \section1 Alphabetical List \l {06-qdoc-commands-verbatimcode.html#badcode}{\\badcode}, \l {06-qdoc-commands-verbatimcode.html#code}{\\code}, \l {06-qdoc-commands-verbatimcode.html#newcode}{\\newcode}, \l {06-qdoc-commands-verbatimcode.html#oldcode}{\\oldcode} \section1 Command Descriptions \table \header \o Command \o Description \row \o \bold \\code \target code \o \bold {The \\code command and the corresponding \\endcode command delimit a piece of verbatim code.} Whereas the \l {c}{\\c} command can be used for short code fragments within a sentence, the \\code command is for longer code snippets and renders the code verbatim in a separate paragraph using a typewriter font and the standard indentation. When processing any of the \\code, \l {badcode}{\\badcode}, \l {newcode}{\\newcode} and \l {oldcode}{\\oldcode} commands, QDoc basically removes all indentation that is common for the verbatim code blocks within a \c{/}\c{*!} ... \c{*}\c{/} comment before it adds the standard indentation. For that reason the recommended style is to use 8 spaces for the verbatim code contained within these commands (note that this doesn't apply to externally quoted code using the \l {quotefromfile}{\\quotefromfile} or \l {quotefile}{\\quotefile} command). For example: \code / *! \code #include #include int main(int argc, char *argv[]) { ... } \ endcode * / \endcode will be rendered as \code #include #include int main(int argc, char *argv[]) { ... } \endcode Other QDoc commands are disabled within \\code... \\endcode, and the special character '\\' is accepted and rendered like the rest of the code. You need to type the code manually between the \\code and \\endcode commands. If you want to include code snippets from a particular file, use the \l {07-0-qdoc-commands-quoting.html#quotefromfile}{\\quotefromfile} command instead. See also \l {c}{\\c}, \l {07-0-qdoc-commands-quoting.html#quotefromfile}{\\quotefromfile}, \l {badcode}{\\badcode}, \l {newcode}{\\newcode} and \l {oldcode}{\\oldcode}. \row \o \bold \\badcode \target badcode \o \bold {The \\badcode command and the corresponding \\endcode command delimit a piece of code that doesn't compile or is wrong for some other reason.} The \\badcode command is similar the \l {code}{\\code} command, but renders the code using a grey font instead of black (the default). Like the \l {code}{\\code} command, it renders its code on a new line in the documentation using a typewriter font and the standard indentation. For example: \code / *! The statement below is rendered using the regular \\code command: \code statusbar()->message(tr("Host %1 found").arg(hostName)); \ endcode While the following statement is rendered using the \\badcode command: \badcode statusbar()->message(tr("Host" + hostName + " found")); \ endcode * / \endcode will be rendered as \quotation The statement below is rendered using the regular \\code command: \code statusbar()->message(tr("Host %1 found").arg(hostName)); \endcode While the following statement is rendered using the \\badcode command: \badcode statusbar()->message(tr("Host" + hostName + " found")); \endcode \endquotation Other QDoc commands are disabled within \\badcode... \\endcode, and the special character '\\' is accepted and rendered like the rest of the code. See also \l {code}{\\code}, \l {newcode}{\\newcode} and \l {oldcode}{\\oldcode}. \row \o \bold \\newcode \target newcode \o \bold {The \\newcode command, and the associated \\oldcode and \\endcode commands, indicate how to port a piece of code to a new version of an API.} The \\newcode command, and its companion the \\oldcode command, is a convenience combination of the \l {code}{\\code} and \l {badcode}{\\badcode} commands: The combination provides a text relating the two code snippets to each other. The command requires a preceding \\oldcode statement. Like the \l {code}{\\code} and \l {badcode}{\\badcode} commands, the \\newcode command renders its code on a new line in the documentation using a typewriter font and the standard indentation. For example: \code / *! \oldcode if (printer->setup(parent)) ... \newcode QPrintDialog dialog(printer, parent); if (dialog.exec()) ... \ endcode * / \endcode is rendered like this: \quotation \oldcode if (printer->setup(parent)) ... \newcode QPrintDialog dialog(printer, parent); if (dialog.exec()) ... \endcode \endquotation Other QDoc commands are disabled within \\oldcode ... \\endcode, and the '\\' character doesn't need to be escaped. \row \o \bold \\oldcode \target oldcode \o \bold {The \\oldcode command requires a corresponding \\newcode statement; otherwise QDoc fails to parse the command and emits a warning.} See also \l {newcode}{\\newcode} and \l {badcode}{\\badcode}. \endtable */ /*! \page 07-0-qdoc-commands-quoting.html \previouspage Verbatim Code Commands \contentspage QDoc Manual - Table of Contents \nextpage Linking Commands \title Quoting External Code Commands The following commands enable quoting from files in the documentation: You can make QDoc include the complete contents of a file, or you can quote specific parts of the file and skip others. The typical use of the latter is to quote a file chunk by chunk. \bold{Note:} Although all of these commands can be used to present C++ code, the \l{#snippet}{\\snippet} and \l{#codeline}{\\codeline} commands should be used in preference to the others when presenting valid code. This allows auxilliary tools for Qt language bindings to substitute the relevant code snippets in place of the C++ ones. \section1 Alphabetical List \l {07-0-qdoc-commands-quoting.html#codeline}{\\codeline}, \l {07-0-qdoc-commands-quoting.html#dots}{\\dots}, \l {07-0-qdoc-commands-quoting.html#printline}{\\printline}, \l {07-0-qdoc-commands-quoting.html#printto}{\\printto}, \l {07-0-qdoc-commands-quoting.html#printuntil}{\\printuntil}, \l {07-0-qdoc-commands-quoting.html#quotefile}{\\quotefile}, \l {07-0-qdoc-commands-quoting.html#quotefromfile}{\\quotefromfile}, \l {07-0-qdoc-commands-quoting.html#skipline}{\\skipline}, \l {07-0-qdoc-commands-quoting.html#skipto}{\\skipto}, \l {07-0-qdoc-commands-quoting.html#skipuntil}{\\skipuntil}, \l {07-0-qdoc-commands-quoting.html#snippet}{\\snippet} \section1 Command Descriptions \table \header \o Command \o Description \row \o \bold \\quotefile \target quotefile \o \bold {The \\quotefile command expands to the complete contents of the file given as argument.} The command considers the rest of the line as part of its argument, make sure to follow the file name with a line break. The file's contents is rendered in a separate paragraph, using a typewriter font and the standard indentation. The code is shown verbatim. For example: \code / *! This is a simple "Hello world" example: \quotefile examples/main.cpp It contains only the bare minimum you need to get a Qt application up and running. * / \endcode will be rendered as \quotation This is a simple "Hello world" example: \quotefile examples/main.cpp It contains only the bare minimum you need to get a Qt application up and running. \endquotation \warning If you use the \l {QDoc Compatibility}{compat.qdocconf} file this command is called \\include. See also \l {quotefromfile}{\\quotefromfile} and \l {code}{\\code}. \row \o \bold \\quotefromfile \target quotefromfile \o \bold {The \\quotefromfile command opens the file given as argument for quoting.} The command considers the rest of the line as part of its argument, make sure to follow the file name with a line break. The command is intended for use when quoting parts from file with the walkthrough commands: \l {printline}{\\printline}, \l {printto}{\\printto}, \l {printuntil}{\\printuntil}, \l {skipline}{\\skipline}, \l {skipto}{\\skipto}, \l {skipuntil}{\\skipuntil}. This enables you to quote specific portions of a file. For example: \code / *! The whole application is contained within the \c main() function: \quotefromfile examples/main.cpp \skipto main \printuntil app(argc, argv) First we create a QApplication object using the \c argc and \c argv parameters. \skipto QPushButton \printuntil resize Then we create a QPushButton, and give it a reasonable size using the QWidget::resize() function. ... * / \endcode will be rendered as \quotation The whole application is contained within the \c main() function: \quotefromfile examples/main.cpp \skipto main \printuntil app(argc, argv) First we create a QApplication object using the \c argc and \c argv parameters. \skipto QPushButton \printuntil resize Then we create a QPushButton, and give it a reasonable size using the QWidget::resize() function. ... \endquotation (\l {Example File}{The complete example file...}) QDoc remembers which file it's quoting, and the current position within that file (see \l {file}{\\printline} for more information). There is no need to "close" the file. Earlier we called this command \\quotefile. For more information, see the \l {26-qdoc-commands-compatibility.html#quotefromfile-versus-quotefile} {compatibility} section. See also \l {quotefile}{\\quotefile}, \l {code}{\\code} and \l {dots}{\\dots}. \row \o \bold \\printline \target printline \o \bold {The \\printline command expands to the line from the current position to the next non-blank line of the current souce file.} To ensure that the documentation always is synchronized with the source file, a substring of the line must be specified as an argument to the command. Note that the command considers the rest of the line as part of its argument, make sure to follow the substring with a line break. The line from the source file is rendered as a separate paragraph, using a typewriter font and the standard indentation. The code is shown verbatim. For example: \code / *! There has to be exactly one QApplication object in every GUI application that uses Qt. \quotefromfile examples/main.cpp \printline QApplication This line includes the QApplication class definition. QApplication manages various application-wide resources, such as the default font and cursor. \printline QPushButton This line includes the QPushButton class definition. The QPushButton widget provides a command button. \printline main The main function... * / \endcode will be rendered as \quotation There has to be exactly one QApplication object in every GUI application that uses Qt. \quotefromfile examples/main.cpp \printline QApplication This line includes the QApplication class definition. QApplication manages various application-wide resources, such as the default font and cursor. \printline QPushButton This line includes the QPushButton class definition. The QPushButton widget provides a command button. \printline main The main function... \endquotation (\l {Example File}{The complete example file...}) \target file QDoc reads the file sequentially. To move the current position forward you can use either of the \l {skipline}{\\skip...} commands. To move the current position backward, you can use the \l {quotefromfile}{\\quotefromfile} command again. \target substring If the substring argument is surrounded by slashes it is interpreted as a \l {regular expression}. For example: \code / *! \quotefromfile widgets/scribble/mainwindow.cpp \skipto closeEvent \printuntil /^\}/ Close events are sent to widgets that the users want to close, usually by clicking \c File|Exit or by clicking the \c X title bar button. By reimplementing the event handler, we can intercept attempts to close the application. * / \endcode will be rendered as \quotation \quotefromfile widgets/scribble/mainwindow.cpp \skipto closeEvent \printuntil /^\}/ Close events are sent to widgets that the users want to close, usually by clicking \c File|Exit or by clicking the \c X title bar button. By reimplementing the event handler, we can intercept attempts to close the application. \endquotation (\l {widgets/scribble}{The complete example file...}) The regular expression \c /^\}/ makes QDoc print until the first '}' character occurring at the beginning of the line without indentation. /.../ encloses the regular expression, and '^' means the beginning of the line. The '}' character must be escaped since it is a special character in regular expressions. QDoc will emit a warning if the specified substring or regular expression cannot be located, i.e. if the source code has changed. See also \l {printto}{\\printto} and \l {printuntil}{\\printuntil}. \row \o \bold \\printto \target printto \o \bold {The \\printto command expands to all the lines from the current position up to and \i excluding the next line containing a given substring.} The command considers the rest of the line as part of its argument, make sure to follow the substring with a line break. The command also follows the same conventions for \l {file}{positioning} and \l {substring}{argument} as the \l {printline}{\\printline} command. The lines from the source file are rendered in a separate paragraph, using a typewriter font and the standard indentation. The code is shown verbatim. For example: \code / *! The whole application is contained within the \c main() function: \quotefromfile examples/main.cpp \printto hello First we create a QApplication object using the \c argc and \c argv parameters... * / \endcode will be rendered as \quotation The whole application is contained within the \c main() function: \quotefromfile examples/main.cpp \skipto main \printto hello First we create a QApplication object using the \c argc and \c argv parameters... \endquotation (\l {Example File}{The complete example file...}) See also \l {printline}{\\printline} and \l {printuntil}{\\printuntil}. \row \o \bold \\printuntil \target printuntil \o \bold {The \\printuntil command expands to all the lines from the current position up to and \i including the next line containing a given substring.} The command considers the rest of the line as part of its argument, make sure to follow the substring with a line break. The command also follows the same conventions for \l {file}{positioning} and \l {substring}{argument} as the \l {printline}{\\printline} command. The lines from the source file are rendered in a separate paragraph, using a typewriter font and the standard indentation. The code is shown verbatim. For example: \code / *! The whole application is contained within the \c main() function: \quotefromfile examples/main.cpp \skipto main \printuntil hello First we create a QApplication object using the \c argc and \c argv parameters, then we create a QPushButton. * / \endcode will be rendered as \quotation The whole application is contained within the \c main() function: \quotefromfile examples/main.cpp \skipto main \printuntil hello First we create a \l {http://qt.nokia.com/doc/4.0/qapplication}{QApplication} object using the \c argc and \c argv parameters, then we create a \l {http://qt.nokia.com/doc/4.0/qpushbutton}{QPushButton}. \endquotation (\l {Example File}{The complete example file...}) See also \l {printline}{\\printline} and \l {printto}{\\printto}. \row \o \bold \\skipline \target skipline \o \bold {The \\skipline command ignores the next non-blank line in the current source file.} Doc reads the file sequentially, and the \\skipline command is used to move the current position (omitting a line of the source file). See the remark about \l {file}{file positioning} above. The command considers the rest of the line as part of its argument, make sure to follow the substring with a line break. The command also follows the same conventions for \l {substring}{argument} as the \l {printline}{\\printline} command, and it is used in conjunction with the \l {quotefromfile}{\\quotefromfile} command. For example: \code / *! QPushButton is a GUI push button that the user can press and release. \quotefromfile examples/main.cpp \skipline QApplication \printline QPushButton This line includes the QPushButton class definition. For each class that is part of the public Qt API, there exists a header file of the same name that contains its definition. * / \endcode will be rendered as \quotation \l QPushButton is a GUI push button that the user can press and release. \quotefromfile examples/main.cpp \skipline QApplication \printline QPushButton This line includes the QPushButton class definition. For each class that is part of the public Qt API, there exists a header file of the same name that contains its definition. \endquotation (\l {Example File}{The complete example file...}) See also \l {skipto}{\\skipto}, \l {skipuntil}{\\skipuntil} and \l {dots}{\\dots}. \row \o \bold \\skipto \target skipto \o \bold {The \\skipto command ignores all the lines from the current position up to and \i excluding the next line containing a given substring.} QDoc reads the file sequentially, and the \\skipto command is used to move the current position (omitting one or several lines of the source file). See the remark about \l {file}{file positioning} above. The command considers the rest of the line as part of its argument, make sure to follow the substring with a line break. The command also follows the same conventions for \l {substring}{argument} as the \l {printline}{\\printline} command, and it is used in conjunction with the \l {quotefromfile}{\\quotefromfile} command. For example: \code / *! The whole application is contained within the \c main() function: \quotefromfile examples/main.cpp \skipto main \printuntil } First we create a QApplication object. There has to be exactly one such object in every GUI application that uses Qt. Then we create a QPushButton, resize it to a reasonable size... * / \endcode will be rendered as \quotation The whole application is contained within the \c main() function: \quotefromfile examples/main.cpp \skipto main \printuntil } First we create a QApplication object. There has to be exactly one such object in every GUI application that uses Qt. Then we create a QPushButton, resize it to a reasonable size ... \endquotation (\l {Example File}{The complete example file...}) See also \l {skipline}{\\skipline}, \l {skipuntil}{\\skipuntil} and \l {dots}{\\dots}. \row \o \bold \\skipuntil \target skipuntil \o \bold {The \\skipuntil command ignores all the lines from the current position up to and \i including the next line containing a given substring.} QDoc reads the file sequentially, and the \\skipuntil command is used to move the current position (omitting one or several lines of the source file). See the remark about \l {file}{file positioning} above. The command considers the rest of the line as part of its argument, make sure to follow the substring with a line break. The command also follows the same conventions for \l {substring}{argument} as the \l {printline}{\\printline} command, and it is used in conjunction with the \l {quotefromfile}{\\quotefromfile} command. For example: \code / *! The first thing we did in the \c main() function was to create a QApplication object \c app. \quotefromfile examples/main.cpp \skipuntil show \dots \printuntil } In the end we must remember to make \c main() pass the control to Qt. QCoreApplication::exec() will return when the application exits... * / \endcode will be rendered as \quotation The first thing we did in the \c main() function was to create a QApplication object \c app. \quotefromfile examples/main.cpp \skipuntil show \dots \printuntil } In the end we must remember to make \c main() pass the control to Qt. QCoreApplication::exec() will return when the application exits... \endquotation (\l {Example File}{The complete example file...}) See also \l {skipline}{\\skipline}, \l {skipto}{\\skipto} and \l {dots}{\\dots}. \row \o \bold \\dots \target dots \o \bold {The \\dots command indicates that parts of the source file have been omitted when quoting a file.} The command is used in conjunction with the \l {quotefromfile}{\\quotefromfile} command, and should be stated on its own line. The dots are rendered on a new line, using a typewriter font. For example: \code / *! \quotefromfile examples/main.cpp \skipto main \printuntil { \dots \skipuntil exec \printline } * / \endcode will be rendered as \quotefromfile examples/main.cpp \skipto main \printuntil { \dots \skipuntil exec \printline } (\l {Example File}{The complete example file...}) The default indentation is 4 spaces, but this can be adjusted using the command's optional argument. For example: \code / *! \dots 0 \dots \dots 8 \dots 12 \dots 16 * / \endcode will be rendered as \dots 0 \dots \dots 8 \dots 12 \dots 16 See also \l {skipline}{\\skipline}, \l {skipto}{\\skipto} and \l {skipuntil}{\\skipuntil}. \row \o \bold \\snippet \target snippet \o \bold {The \\snippet command causes a code snippet to be included verbatim as preformatted text, which may be syntax highlighted.} Each code snippet are referenced by the file that holds it and by a unique identifier for that file. Snippet files are typically stored in a \c{snippets} directory inside the documentation directory (e.g., \c{$QTDIR/doc/src/snippets}). For example, the following documentation references a snippet in a file residing in a subdirectory of the documentation directory: \code \snippet snippets/textdocument-resources/main.cpp Adding a resource \endcode The text following the file name is the unique identifier for the snippet. This is used to delimit the quoted code in the relevant snippet file as shown in the following example that corresponds to the above \c{\\snippet} command: \dots \code QImage image(64, 64, QImage::Format_RGB32); image.fill(qRgb(255, 160, 128)); //! [Adding a resource] document->addResource(QTextDocument::ImageResource, QUrl("mydata://image.png"), QVariant(image)); //! [Adding a resource] \endcode \dots \row \o \bold \\codeline \target codeline \o \bold{The \\codeline command inserts a blank line of preformatted text. It is used to insert gaps between snippets without closing the current preformatted text area and opening a new one.} \endtable */ /*! \page 07-1-example.html \previouspage Quoting External Code Commands \contentspage QDoc Manual - Table of Contents \title Example File \quotefile examples/main.cpp */ /*! \page 08-qdoc-commands-linking.html \previouspage Quoting External Code Commands \contentspage QDoc Manual - Table of Contents \nextpage Graphic Commands \title Linking Commands The linking commands make it possible to create hyperlinks to classes, functions, header files and examples. They also make it possible to link to targets within a document, as well as to other documents and URLs. \section1 Alphabetical List \l {08-qdoc-commands-linking.html#keyword}{\\keyword}, \l {08-qdoc-commands-linking.html#l}{\\l}, \l {08-qdoc-commands-linking.html#sa}{\\sa}, \l {08-qdoc-commands-linking.html#target}{\\target} \section1 Command Descriptions \table \header \o Command \o Description \row \o \bold \\l \target l \o \bold {The \\l command is used to create hyperlinks. } The command's general syntax is \code \l {link target}{link text} \endcode For example: \code / *! Read the \l {http://qt.nokia.com/doc/4.0/} {Qt's Reference Documentation} carefully. * / \endcode will be rendered as \quotation Read the \l {http://qt.nokia.com/doc/4.0/} {Qt's Reference Documentation} carefully. \endquotation If the link target is equivalent to the link text, the second argument can be omitted. For example, if you have documentation like: \code / *! \target assertions Assertions make some statement about the text at the point where they occur in the regexp but they do not match any characters. ... Regexps are built up from expressions, quantifiers, and \l {assertions}{assertions}. * / \endcode you can rewrite it as \code / *! \target assertions Assertions make some statement about the text at the point where they occur in the regexp but they do not match any characters. ... Regexps are built up from expressions, quantifiers, and \l assertions. * / \endcode For the one-parameter version the braces can often be omitted. See the \l {i}{\\i} command for the \l {argument}{argument conventions}. The \\l command supports several kinds of links: \list \o \c {\l QWidget} - a defined \l {class}{\\class} \o \c {\l QWidget::sizeHint()} - a defined member function (\l {fn}{\\fn}) \o \c {\l } - a defined \l {headerfile}{\\headerfile} \o \c {\l widgets/wiggly} - a defined \l {example-command}{\\example} \o \c {\l {QWidget Class Reference}} - a defined \l {title}{\\title} \o \c {\l {Introduction}}- a defined \l{part}{\\part}, \l{chapter}{\\chapter} or \l {sectionOne}{\\section...} \o \c {\l fontmatching} - a defined \l {target}{\\target} \o \c {\l {Shared Classes}} - a defined \l {keyword}{\\keyword} \o \c {\l network.html} - a defined \l {page}{\\page} \o \c {\l http://www.trolltech.com/} - a URL \endlist QDoc also tries to make a link out of any words that don't resemble any normal English words, for example Qt class names or functions, like QWidget or QWidget::sizeHint(). In these cases, the \\l command can actually be omitted, but by using the command, you ensure that QDoc will emit a warning if it cannot find the link target. In addition, if you only want the function name to appear in the link, you can use the following syntax: \list \o \c {\l {QWidget::}{sizeHint()}} \endlist See also \l {sa}{\\sa}, \l {target}{\\target} and \l {keyword}{\\keyword}. \row \o \bold \\sa \target sa \o \bold {The \\sa command defines a list of links that will be rendered in a separate "See also" section at the bottom of the documentation.} The command takes a comma-separated list of links as its argument. If the line ends with a comma, you can continue on a second line. The general syntax is: \code \sa {the first link}, {the second link}, {the third link}, ... \endcode QDoc will automatically try to generate "See also" links interconnecting a property's various functions. For example, an setVisible() function will automatically get a link to visible() and vice versa. In general, QDoc will generate "See also" links that interconnect the functions that access the same property. It recognizes four different syntax versions: \list \o \c property() \o \c setProperty() \o \c isProperty() \o \c hasProperty() \endlist The \\sa command supports the same kind of links as the \l {l}{\\l} command. For example: \code / *! Appends the actions \a actions to this widget's list of actions. \sa removeAction(), QMenu, addAction() * / void QWidget::addActions(QList actions) { ... } \endcode will be rendered as \quotation \bold {void QWidget::addActions ( QList \i actions )} Appends the actions \i actions to this widget's list of actions. See also \l {QWidget::removeAction()}{removeAction()}, \l QMenu, and \l {QWidget::addAction()}{addAction()}. \endquotation See also \l {l}{\\l}, \l {target}{\\target} and \l {keyword}{\\keyword}. \row \o \bold \\target \target target \o \bold {The \\target command defines an explicit point in the documentation that you can later link to using the \l {l}{\\l} and \l {sa}{\\sa} commands.} The command considers the rest of the line as part of its argument, make sure to follow the target name with a line break. For example: \code / *! \target capturing parentheses \section1 Capturing Text Parentheses allow us to group elements together so that we can quantify and capture them. ... * / \endcode can be referenced with \list \o \c {\l {capturing parentheses}} (from elsewhere in the same comment) \o \c {\l qregexp.html#capturing-parentheses} (from anywhere else) \endlist within a documentation unit, and with \list \o \c {\l http://www.trolltech.com/4.0/doc/html/qregexp.html#capturing-parentheses} \endlist on a more global scale. If the target name does't contain any spaces, the brackets can be omitted as well. See also \l {l}{\\l}, \l {sa}{\\sa} and \l {keyword}{\\keyword}. \row \o \bold \\keyword \target keyword \o \bold {The \\keyword command defines an explicit point in the documentation that you can later link to using the \l {l}{\\l} and \l {sa}{\\sa} commands.} Keywords must be unique within the entire set of documentation processed in on QDoc run. The command considers the rest of the line as part of its argument, make sure to follow the keyword with a line break. The \\keyword command is similar to \l {target}{\\target}, but stronger. A keyword can be referenced from anywhere using a simple syntax. For example: \code / *! \class QRegExp \reentrant \brief The QRegExp class provides pattern matching using regular expressions. \ingroup tools \ingroup misc \ingroup shared \mainclass \keyword regular expression Regular expressions, or "regexps", provide a way to find patterns within text. ... * / \endcode can be referenced like this \code / *! When a string is surrounded by slashes, it's interpreted as a \l regular expression. * / \endcode which will be rendered as \quotation When a string is surrounded by slashes, it's interpreted as a \l {regular expression}. \endquotation If the keyword does't contain any spaces, the brackets can be omitted as well. See also \l {l}{\\l}, \l {sa}{\\sa} and \l {target}{\\target}. \endtable */ /*! \page 09-qdoc-commands-graphic.html \previouspage Linking Commands \contentspage QDoc Manual - Table of Contents \nextpage Container Commands \title Graphic Commands The graphic commands makes it possible to include images in the documentation. The images can be rendered as separate paragraphs, or within running text. \section1 Alphabetical List \l {09-qdoc-commands-graphic.html#caption}{\\caption}, \l {09-qdoc-commands-graphic.html#image}{\\image}, \l {09-qdoc-commands-graphic.html#inlineimage}{\\inlineimage} \section1 Command Descriptions \table \header \o Command \o Description \row \o \bold \\image \target image \o \bold {The \\image command expands to the image specified by its argument, and renders it centered as a separate paragraph.} The \\image command replaces the old \\img command. For more information, see the \l {26-qdoc-commands-compatibility.html#image-versus-img} {compatibility} section. The command takes two arguments. The first is the name of the image file. The second argument is optional and is a simple description of the image equivalent to the HTML alt="" in an image tag. The description is used for tooltips, and when a browser doesn't support images like the Lynx text browser. The command considers the rest of the line after the file name its second argument, make sure that you follow the filename or description with a line break. Braces are only necessary if the description spans several lines. For example: \code / *! Qt by Trolltech is a C++ toolkit for cross-platform GUI application development. \image happyguy.jpg "Happy guy" Qt provides single-source portability across Microsoft Windows, Mac OS X, Linux, and all major commercial Unix variants. It is also available for embedded devices. * / \endcode will be rendered as \quotation Qt by Trolltech is a C++ toolkit for cross-platform GUI application development. \image happyguy.jpg image "Happy guy" Qt provides single-source portability across Microsoft Windows, Mac OS X, Linux, and all major commercial Unix variants. It is also available for embedded devices. \endquotation See also \l {inlineimage}{\\inlineimage} and \l {caption}{\\caption}. \row \o \bold \\inlineimage \target inlineimage \o \bold {The \\inlineimage command expands to the image specified by its argument; the image is rendered inline with the rest of the text.} The command takes two arguments. The first is the name of the image file. The second argument is optional and is a simple description of the image equivalent to the HTML alt="" in an image tag. The description is used for tooltips, and when a browser doesn't support images like the Lynx text browser. The most common use of the \\inlineimage command is in lists and tables. For example: \code / *! \list 1 \o \inlineimage happy.gif Oh so happy! \o \inlineimage happy.gif Oh so happy! \o \inlineimage happy.gif Oh so happy! \endlist * / \endcode will be rendered as \list 1 \o \inlineimage happy.gif Oh so happy! \o \inlineimage happy.gif Oh so happy! \o \inlineimage happy.gif Oh so happy! \endlist And \code / *! \table \header \o Trolltech \o Trolltech \row \o \inlineimage happy.gif Oh so happy! \o \inlineimage happy.gif Oh so happy! \row \o \inlineimage happy.gif Oh so happy! \o \inlineimage happy.gif Oh so happy! \endtable * / \endcode will be rendered as \raw HTML
Trolltech Trolltech
Oh so happy! Oh so happy!
Oh so happy! Oh so happy!
\endraw The command can also be used to insert an image inline with the regular text. For example: \code / *! \inlineimage training.jpg Training by Trolltech The Qt Programming course is offered as a five day Open Enrollment Course. The classes are open to the public.While the course is open to anyone who wants to learn, attendees should have significant experience in C++ development to derive maximum benefit from the course. * / \endcode will be rendered as \quotation \inlineimage training.jpg Training by Trolltech The Qt Programming course is offered as a five day Open Enrollment Course. The classes are open to the public.While the course is open to anyone who wants to learn, attendees should have significant experience in C++ development to derive maximum benefit from the course. \endquotation See also \l {image}{\\image} and \l {caption}{\\caption}. \row \o \bold \\caption \target caption \o \bold {The \\caption command provides a caption for an image.} The command follows the same conventions for parentheses and use of braces for its \l argument as the \l {i}{\\i} command. \warning This is preliminary functionality. The command is not fully implemented. See also \l {image}{\\image} and \l {inlineimage}{\\inlineimage} \endtable */ /*! \page 10-qdoc-commands-container.html \previouspage Graphic Commands \contentspage QDoc Manual - Table of Contents \nextpage Document Contents Commands \title Container Commands The container commands create tables and lists with associated items and contents. A list is rendered left aligned as a separate paragraph. A table is rendered centered as a separate paragraph, and its width depends on its content. \section1 Alphabetical List \l {10-qdoc-commands-container.html#header}{\\header}, \l {10-qdoc-commands-container.html#list}{\\list}, \l {10-qdoc-commands-container.html#o}{\\o}, \l {10-qdoc-commands-container.html#omitvalue}{\\omitvalue}, \l {10-qdoc-commands-container.html#row}{\\row}, \l {10-qdoc-commands-container.html#table}{\\table}, \l {10-qdoc-commands-container.html#value}{\\value} \section1 Command Descriptions \table \header \o Command \o Description \row \o \bold \\table \target table \o \bold {The \\table command and the corresponding \\endtable command delimit the contents of a table.} The command accepts a single argument specifying the table's width in percentage: \code / *! \table 100 % ... \endtable * / \endcode The code above ensures that the table will fill all available space. If the table's width is smaller than 100 %, the table will be centered in the generated documentation. A table can contain headers, rows and columns. A row starts with a \l {row}{\\row} command and consists of cells, which starts with a \l {o}{\\o} command. There is also a \l {header}{\\header} command which is a special kind of row with a special formatting. For example: \code / *! \table \header \o Qt Core Feature \o Brief Description \row \o \l {Signal and Slots} \o Signals and slots are used for communication between objects. \row \o \l {Layout Management} \o The Qt layout system provides a simple and powerful way of specifying the layout of child widgets. \row \o \l {Drag and Drop} \o Drag and drop provides a simple visual mechanism which users can use to transfer information between and within applications. \endtable * / \endcode will be rendered as \raw HTML
Qt Core Feature Brief Description
Signals and Slots Signals and slots are used for communication between objects.
Layout Management The Qt layout system provides a simple and powerful way of specifying the layout of child widgets.
Drag and Drop Drag and drop provides a simple visual mechanism which users can use to transfer information between and within applications.
\endraw You can also make cells span several rows and columns. For example: \code / *! \table \header \o {3,1} This header cell spans three columns but only one row. \row \o {2, 1} This table cell spans two columns but only one row \o {1, 2} This table cell spans only one column, but two rows. \row \o A regular table cell \o A regular table cell \endtable * / \endcode will be rendered as \raw HTML
This header cell spans three columns but only one row
This table cell spans two columns but only one row This table cell spans only one column, but two rows.
A regular table cell A regular table cell
\endraw See also \l {header}{\\header}, \l {row}{\\row} and \l {o}{\\o}. \row \o \bold \\header \target header \o \bold {The \\header command indicates that the following table cells are the current table's column headers.} The command can only be used within the \l{table} {\\table...\\endtable} commands. A header can contain several cells. A cell is created with the \l {o}{\\o} command. A header cell's text is centered within the table cell and rendered using a bold font. For example: \code / *! \table \header \o Qt Core Feature \o Brief Description \row \o \l {Signal and Slots} \o Signals and slots are used for communication between objects. \endtable * / \endcode will be rendered as \raw HTML
Qt Core Feature Brief Description
Signals and Slots Signals and slots are used for communication between objects.
\endraw See also \l {table}{\\table}, \l {row}{\\row} and \l {o}{\\o}. \row \o \bold \\row \target row \o \bold {The \\row command indicates that the following table cells belong to the same row in the current table.} The command can only be used within the \l{table} {\\table...\\endtable} commands. A row can contain several cells. A cell is created with the \l {o}{\\o} command. The background cell color of each row alternate between two shades of grey, making it easier to distinguish the rows from each other. The cells' contents is left aligned. For example: \code / *! \table \header \o Qt Core Feature \o Brief Description \row \o \l {Signal and Slots} \o Signals and slots are used for communication between objects. \row \o \l {Layout Management} \o The Qt layout system provides a simple and powerful way of specifying the layout of child widgets. \row \o \l {Drag and Drop} \o Drag and drop provides a simple visual mechanism which users can use to transfer information between and within applications. \endtable * / \endcode will be rendered as \raw HTML
Qt Core Feature Brief Description
Signals and Slots Signals and slots are used for communication between objects.
Layout Management The Qt layout system provides a simple and powerful way of specifying the layout of child widgets.
Drag and Drop Drag and drop provides a simple visual mechanism which users can use to transfer information between and within applications.
\endraw See also \l {table}{\\table}, \l {header}{\\header} and \l {o}{\\o}. \row \o \bold \\value \target value \o \bold {The \\value command starts the documentation of a C++ enum item}. The command's first argument is the enum item. Then follows its associated description. The description argument ends at the next blank line or \\value. The arguments are rendered within a table. The documentation will be located in the associated class, header file or namespace documentation. See the \l {enum}{\\enum} documentation for an example. See also \l {enum}{\\enum} and \l {omitvalue}{\\omitvalue}. \row \o \bold \\omitvalue \target omitvalue \o \bold {The \\omitvalue command excludes a C++ enum item from the documentation}. The command's only argument is the name of the enum item that will be omitted. See the \l {enum}{\\enum} documentation for an example. See also \l {enum}{\\enum} and \l {value}{\\value}. \row \o \bold \\list \target list \o \bold {The \\list command and the corresponding \\endlist command delimit a list of items.} You need to create each list item explicitly using the \l {o}{\\o} command. A list can contain one or more items; it can also be nested. For example: \code / *! \list \o Qt Reference Documentation: Getting Started \list \o How to Learn Qt \o Installation \list \o Qt/X11 \o Qt/Windows \o Qt/Mac \o Qt/Embedded \endlist \o Tutorial and Examples \endlist \endlist * / \endcode will be rendered as \list \o Qt Reference Documentation: Getting Started \list \o How to Learn Qt \o Installation \list \o Qt/X11 \o Qt/Windows \o Qt/Mac \o Qt/Embedded \endlist \o Tutorial and Examples \endlist \endlist The \\list command takes an optional argument providing alternative appearances for the list items. For example: \code / *! \list \o How to Learn Qt \o Installation \o Tutorial and Examples \endlist * / \endcode will render the list items with bullets (the default): \list \o How to Learn Qt \o Installation \o Tutorial and Examples \endlist If you provide 'A' as an argument to the \\list command, the bullets are replaced with characters following in alphabetical order: \list A \o How to Learn Qt \o Installation \o Tutorial and Examples \endlist If you replace 'A' with '1', the list items are rendered with numbers following in ascending order: \list 1 \o How to Learn Qt \o Installation \o Tutorial and Examples \endlist If you provide 'i' as the argument, the default bullets are replaced with roman numerals: \list i \o How to Learn Qt \o Installation \o Tutorial and Examples \endlist Or finally, you can make the list items appear with roman numbers following in ascending order if you provide 'I' as the optional argument: \list I \o How to Learn Qt \o Installation \o Tutorial and Examples \endlist You can also make the listing start at any character or number by simply provide the number or character you want to start at. For example: \code / *! \list G \o How to Learn Qt \o Installation \o Tutorial and Examples \endlist * / \endcode will be rendered as \list G \o How to Learn Qt \o Installation \o Tutorial and Examples \endlist See also \l {o}{\\o}. \row \o \bold \\o \target o \o \bold {The \\o command announce a table or list item.} Earlier we used the \l {i}{\\i} command for this purpose. For more information see the \l {26-qdoc-commands-compatibility.html#o-versus-i}{compatibility} section. The command can only be used within the \l{table} {\\table...\\endtable} or \l{list}{\\list... \\endlist} commands. It considers everything until the next occurrence of the \\o command, or the currently applicable \l {table}{\\endtable} or \l {list}{\\endlist} command, as its argument. For examples, see \l {table}{\\table} and \l {list}{\\list}. If the command is used within a table, you can in addition specify how many rows or columns the item should span. For example: \code / *! \table \header \o {3,1} This header cell spans three columns but only one row. \row \o {2, 1} This table item spans two columns but only one row \o {1, 2} This table item spans only one column, but two rows. \row \o A regular table item \o A regular table item \endtable * / \endcode will be rendered as \raw HTML
This header cell spans three columns but only one row
This table item spans two columns but only one row This table item spans only one column, but two rows.
A regular table item A regular table item
\endraw If not specified, the item will span one column and one row. See also \l {table}{\\table}, \l {header}{\\header}, \l {list}{\\list} and \l {o}{\\o}. \endtable */ /*! \page 11-qdoc-commands-documentcontents.html \previouspage Container Commands \contentspage QDoc Manual - Table of Contents \nextpage Miscellaneous Commands \title Document Contents Commands The document contents commands identify parts of the documentation, i.e. parts with a special rendering, conceptual meaning or function. \section1 Alphabetical List \l {11-qdoc-commands-documentcontents.html#abstract}{\\abstract}, \l {11-qdoc-commands-documentcontents.html#brief}{\\brief}, \l {11-qdoc-commands-documentcontents.html#footnote}{\\footnote}, \l {11-qdoc-commands-documentcontents.html#legalese}{\\legalese}, \l {11-qdoc-commands-documentcontents.html#tableofcontents} {\\tableofcontents}, \l {11-qdoc-commands-documentcontents.html#quotation}{\\quotation}, \l {11-qdoc-commands-documentcontents.html#warning}{\\warning} \section1 Command Descriptions \table \header \o Command \o Description \row \o \bold \\abstract \target abstract \o \bold {The \\abstract command and the corresponding \\endabstract command delimit a document's abstract section.} The abstract section is rendered as an indented italicized paragraph. \warning This is preliminary funcionality. The command is not fully implemented. Currently, the abstract section is rendered as a regular HTML paragraph. For example: \code / *! \abstract Qt by Trolltech is a C++ toolkit for cross-platform GUI application development. Qt provides single-source portability across Microsoft Windows, Mac OS X, Linux, and all major commercial Unix variants. It is also available for embedded devices. \endabstract * / \endcode will be rendered as \abstract Qt by Trolltech is a C++ toolkit for cross-platform GUI application development. Qt provides single-source portability across Microsoft Windows, Mac OS X, Linux, and all major commercial Unix variants. It is also available for embedded devices. \endabstract \row \o \bold \\quotation \target quotation \o \bold { The \\quotation command and the corresponding \\endquotation command delimit a quotation remark.} This command replaces the old \\quote command. For more information see the \l {26-qdoc-commands-compatibility.html#quotation-versus-quote} {compatibility} section. The remark is rendered as a separate centered paragraph. For example: \code / *! While the prospect of a significantly broader market is good news for Firstlogic, the notion also posed some challenges. Dave Dobson, director of technology for the La Crosse, Wisconsin-based company, said: \quotation As our solutions were being adopted into new environments, we saw an escalating need for easier integration with a wider range of enterprise applications. \endquotation * / \endcode will be rendered as While the prospect of a significantly broader market is good news for Firstlogic, the notion also posed some challenges. Dave Dobson, director of technology for the La Crosse, Wisconsin-based company, said: \quotation As our solutions were being adopted into new environments, we saw an escalating need for easier integration with a wider range of enterprise applications. \endquotation \row \o \bold \\footnote \target footnote \o \bold {The \\footnote command and the corresponding \\endfootnote command delimit a footnote.} The footnote follows the standard conventions, rendered at the bottom of the page. \warning This is preliminary funcionality. The command is not fully implemented. For example: \code / *! In Qt 4 we have tried to simplify the constructors of QObject/QWidget subclasses. This makes subclassing easier, at the same time as it helps make the Qt library more efficient. \footnote Constructors no longer take a "const char *name" parameter. If you want to specify a name for a QObject, you must call QObject::setObjectName() after construction. The object name is now a QString. \endfootnote QWidget's WFlags data type has been split in two: Qt::WindowFlags specifies low-level window flags (the type of window and the frame style), whereas Qt::WidgetAttribute specifies various higher-level attributes about the widget (e.g., WA_StaticContents). * / \endcode will be rendered as \quotation In Qt 4 we have tried to simplify the constructors of QObject/QWidget subclasses. This makes subclassing easier, at the same time as it helps make the Qt library more efficient. \footnote Constructors no longer take a "const char *name" parameter. If you want to specify a name for a QObject, you must call QObject::setObjectName() after construction. The object name is now a QString. \endfootnote QWidget's WFlags data type has been split in two: Qt::WindowFlags specifies low-level window flags (the type of window and the frame style), whereas Qt::WidgetAttribute specifies various higher-level attributes about the widget (e.g., WA_StaticContents). \endquotation \row \o \bold \\tableofcontents \target tableofcontents \o \bold {The \\tableofcontents command generates a table displaying the titles of the current documentation unit's parts, chapters, sections, etc.} The command accepts a single optional argument: \code \tableofcontents sectionN \endcode where \c sectionN is the deepest section to include (by default all sections are included). For example, it the documentation unit's structure looks something like this: \quotation \raw HTML

Basic Qt

This is the first part.

Getting Started

This is the first part's first chapter.

Hello Qt

This is the first chapter's first section.

Making Connections

This is the first chapter's second section.

Using the Reference Documentation

This is the first chapter's third section.

Creating Dialogs

This is the first part's second chapter.

Subclassing QDialog

This is the second chapter's first section.

...

Intermediate Qt

This is the second part.

Layout Management

This is the second part's first chapter.

Basic Layouts

This is the first chapter's first section.

... \endraw \endquotation Then \code / *! Contents: \tableofcontents ... * / \endcode will expand to \quotation \raw HTML

Contents:

... \endraw \endquotation Each table entry becomes a link to the corresponding part, chapter or section. \row \o \bold \\brief \target brief \o \bold {The \\brief command introduces a one-sentence description of a class, namespace, header file, property or variable.} The brief text is used to introduce the documentation of the associated object, and in lists generated using the \l {generatelist}{\\generatelist} command. The \\brief command can be used in two significant different ways: \l {brief class}{One for classes, namespaces and header files}, and \l {brief property}{one for properties and variables}. \target brief property When the \\brief command is used to describe a property or a variable, the brief text must only be a sentence fragment and start with "whether" (for boolean properties and variables) or "the" (for any other property or variable). For example the boolean QWidget::isWindow property: \code / *! \property QWidget::isActiveWindow \brief whether this widget's window is the active window The active window is the window that contains the widget that has keyboard focus. When popup windows are visible, this property is true for both the active window \e and for the popup. \sa activateWindow(), QApplication::activeWindow() * / \endcode and the QWidget::geometry property \code / *! \property QWidget::geometry \brief the geometry of the widget relative to its parent and excluding the window frame When changing the geometry, the widget, if visible, receives a move event (moveEvent()) and/or a resize event (resizeEvent()) immediately. ... \sa frameGeometry(), rect(), ... * / \endcode The latter will be rendered as \quotation \raw HTML

geometry : QRect

\endraw This property holds the geometry of the widget relative to its parent and excluding the window frame. ... Access functions: \list \o \bold {const QRect & geometry () const} \o \bold {void setGeometry ( int x, int y, int w, int h )} \o \bold {void setGeometry ( const QRect & )} \endlist See also \l {QWidget::frameGeometry()}{frameGeometry()}, \l {QWidget::rect()}{rect()}, ... \endquotation \target brief class When the \\brief command is used to describe a class, the brief text should be a complete sentence and must start like this: \code The class is|provides|contains|specifies... \endcode and likewise when the command is used for namespaces or header files. \warning The brief statement is used as the first paragraph of the detailed description. Do not repeat the sentence. For example: \code / *! \class PreviewWindow \brief The PreviewWindow class is a custom widget displaying the names of its currently set window flags in a read-only text editor. The PreviewWindow class inherits QWidget. The widget displays the names of its window flags set with the setWindowFlags() function. It is also provided with a QPushButton that closes the window. ... \sa QWidget * / \endcode will be rendered as \quotation \raw HTML

PreviewWindow Class Reference

\endraw The PreviewWindow class is a custom widget displaying the names of its currently set window flags in a read-only text editor. \l {preview window}{More...} \raw HTML

Properties

\endraw \list \o 52 properties inherited from QWidget \o 1 property inherited from QObject \endlist \raw HTML

Public Functions

\endraw \list \o \l {constructor}{PreviewWindow}(QWidget *parent = 0) \o void \l {function}{setWindowFlags}(Qt::WindowFlags flags) \endlist \list \o 183 public functions inherited from QWidget \o 28 public functions inherited from QObject \endlist \raw HTML

Public Slots

\endraw \list \o 17 public slots inherited from QWidget \o 1 public slot inherited from QObject \endlist \raw HTML

Additional Inherited Members

\endraw \list \o 1 signal inherited from QWidget \o 1 signal inherited from QObject \o 4 static public members inherited from QWidget \o 4 static public members inherited from QObject \o 39 protected functions inherited from QWidget \o 7 protected functions inherited from QObject \endlist \target preview window \raw HTML

Detailed Description

\endraw The PreviewWindow class is a custom widget displaying the names of its currently set window flags in a read-only text editor. The PreviewWindow class inherits QWidget. The widget displays the names of its window flags set with the \l {function}{setWindowFlags()} function. It is also provided with a QPushButton that closes the window. ... See also QWidget. \raw HTML

Member Function Documentation

\endraw \target constructor \raw HTML

PreviewWindow(QWidget *parent = 0)

\endraw Constructs a preview window widget with \i parent. \target function \raw HTML

setWindowFlags(Qt::WindowFlags flags)

\endraw Sets the widgets flags using the QWidget::setWindowFlags() function. Then runs through the available window flags, creating a text that contains the names of the flags that matches the flags parameter, displaying the text in the widgets text editor. \endquotation Using \\brief with a namespace can for example look like this: \code / *! \namespace Qt \brief The Qt namespace contains miscellaneous identifiers used throughout the Qt library. * / \endcode and finally using \\brief with a header file can look something like this: \code / *! \headerfile \title Global Qt Declarations \brief The header file provides basic declarations and is included by all other Qt headers. \sa * / \endcode See also \l{property}{\\property}, \l{class}{\\class}, \l{namespace}{\\namespace} and \l{headerfile}{\\headerfile}. \row \o \bold \\legalese \target legalese \o \bold {The \\legalese command, and the corresponding \\endlegalese command, delimit a licence agreement.} If the \\endlegalese command is omitted, QDoc will still process the \\legalese command but considers the rest of the documentation page as the license agreement. Ideally, the license documentation is located where the licensed code is used. Later the documentation identified by the \\legalese command can be accumulated into a list using the \l {generatelist}{\\generatelist} command with the \c legalese argument. This is useful to generate an overview of all the licenses associated with the source code. For example: \code \ * ! ... On X11, Qt also supports drops via the Motif Drag \& Drop Protocol. The implementation incorporates some code that was originally written by Daniel Dardailler, and adapted for Qt by Matt Koss \ and Trolltech. Here is the original copyright notice: \legalese \code Copyright 1996 Daniel Dardailler. Permission to use, copy, modify, distribute, and sell this software for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of Daniel Dardailler not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. Daniel Dardailler makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty. Modifications Copyright 1999 Matt Koss, under the same license as above. \ endcode \endlegalese * / \endcode will be rendered as \quotation ... On X11, Qt also supports drops via the Motif Drag \& Drop Protocol. The implementation incorporates some code that was originally written by Daniel Dardailler, and adapted for Qt by Matt Koss \ and Trolltech. Here is the original copyright notice: \legalese \code Copyright 1996 Daniel Dardailler. Permission to use, copy, modify, distribute, and sell this software for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of Daniel Dardailler not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. Daniel Dardailler makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty. Modifications Copyright 1999 Matt Koss, under the same license as above. \endcode \endlegalese \endquotation \row \o \bold \\warning \target warning \o \bold {The \\warning command renders a "Warning:" prefix to the command's argument.} For example: \code / *! Qt::HANDLE is a platform-specific handle type for system objects. This is equivalent to \c{void *} on Windows and Mac OS X, and to \c{unsigned long} on X11. \warning Using this type is not portable. * / \endcode will be rendered as \quotation Qt::HANDLE is a platform-specific handle type for system objects. This is equivalent to \c{void *} on Windows and Mac OS X, and to \c{unsigned long} on X11. \warning Using this type is not portable. \endquotation \endtable */ /*! \page 12-0-qdoc-commands-miscellaneous.html \previouspage Document Contents Commands \contentspage QDoc Manual - Table of Contents \nextpage Topical Commands \title Miscellaneous Commands These commands provide miscellaneous functions connected to the visual appearance of the documentation, and to the process of generating the documentation. \section1 Alphabetical List \l {12-0-qdoc-commands-miscellaneous.html#else}{\\else}, \l {12-0-qdoc-commands-miscellaneous.html#endif}{\\endif}, \l {12-0-qdoc-commands-miscellaneous.html#expire}{\\expire}, \l {12-0-qdoc-commands-miscellaneous.html#generatelist}{\\generatelist}, \l {12-0-qdoc-commands-miscellaneous.html#if}{\\if}, \l {12-0-qdoc-commands-miscellaneous.html#include}{\\include}, \l {12-0-qdoc-commands-miscellaneous.html#meta}{\\meta}, \l {12-0-qdoc-commands-miscellaneous.html#omit}{\\omit}, \l {12-0-qdoc-commands-miscellaneous.html#raw}{\\raw}, \l {12-0-qdoc-commands-miscellaneous.html#raw}{\\unicode} \section1 Command Descriptions \table \header \o Command \o Description \row \o \bold \\expire \target expire \o \bold {The \\expire command allows you to define an expiration date for your documentation.} When using the \\expire command, QDoc will emit a warning when the current date is larger than the specified date. The command accepts one argument; the argument's format is yyyy-mm-dd. For example: \code / *! \page porting.html \title Porting to Qt 3.x \expire 2004-12-31 This document describes porting applications from Qt 2.x to Qt 3.x. The Qt 3.x series is not binary compatible with the 2.x series. ... * / \endcode If you run QDoc on 4 July 2005, it will emit the warning \quotation porting.qdoc:6: Documentation expired 185 days ago \endquotation \row \o \bold \\generatelist \target generatelist \o \bold {The \\generatelist command expands to a list of various documentation or links to documentation.} For example in the Qt Reference Documentation: \code / *! \page classes.html \title All Qt Classes (main index) For a shorter list that only includes the most frequently used classes, see \l{Qt's Main Classes}. For a list of Qt 3 support classes, see \l{Qt3Support Classes}. \generatelist classes * / \endcode is used to generate \l {All Qt Classes (main index)}. The command accepts the following arguments: \target table example \list \o \c annotatedclasses The \c annotatedclasses argument provides a table containing the names of all the classes, and a description of each class. Each class name is a link to the class's reference documentation. For example: \quotation \raw HTML
QDial Rounded range control (like a speedometer or potentiometer)
QDialog The base class of dialog windows
QDir Access to directory structures and their contents
\endraw \endquotation A class is identified within the documentation by the the \l {class}{\\class} command, and the descriptions are based on the argument of the \l {brief}{\\brief} commands in the class documentation. \target list example \o \c classes The \c classes argument provides a complete alphabetical list of the classes. Each class name is a link to the class's reference documentation. For example: \quotation \raw HTML

QAbstractButton QAbstractExtensionManager QAbstractItemModel
QAbstractEventDispatcher QAbstractFormBuilder QAbstractItemView
QAbstractExtensionFactory QAbstractItemDelegate QAbstractListModel

\endraw \endquotation A class is identified within the documentation by the the \l {class}{\\class} command. \o \c classesbymodule This particular argument requests an additional argument, i.e. a specification of the module. For example: \code / *! \page qtgui.html \contentspage Qt Classes by Module \previouspage QtCore Classes \nextpage QtNetwork Classes \title QtGui Classes \keyword QtGui \generatelist {classesbymodule QtGui} * / \endcode Together, these arguments provide a table containing the classes considered members of the specified module, accompanied with a brief description. Each class name is a link to the class's reference documentation. The generated table is rendered similarily to the one generated when using the \l {table example}{\c annotatedclasses} argument. For the basic classes in Qt, a class's module is determined by its location, i.e. its directory. However, for extensions, like ActiveQt and Qt Designer, a class is related to a module with the \l {inmodule}{\\inmodule} command. \o \c classesbyedition This particular argument requests an additional argument, i.e. a specification of the edition. For example: \code / *! \page console-edition-classes.html \title Qt Console Edition Classes \generatelist{classesbyedition Console} * / \endcode Together, these arguments provide a table containing the classes considered members of the specified edition, accompanied with a brief description. Each class name is a link to the class's reference documentation. The edition a given class can be found in is determined by the module it belongs to. \o \c compatclasses The \c compatclasses argument provides a complete and alphabetical list of the support classes. A support class is identified within the documentation by the \l {compat}{\\compat} command. Each class name is a link to the class's reference documentation. The list is rendered similarily to the list generated by the \l {list example}{\c classes} argument. \warning The \c classesbymodule argument will at some point replace the this argument. \o \c functionindex The \c functionindex argument provides a complete alphabetical list of all the documented member functions. For example: \quotation \raw HTML

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 

DTDHandler: QXmlReader

QAXCLASS: global

QAXFACTORY_BEGIN: global

QAXFACTORY_DEFAULT: global

QAXFACTORY_END: global

\endraw ... \endquotation \o \c legalese The \c legalese argument provides a complete list of all the licenses. The licenses are identified within the documentation using the \l {legalese}{\\legalese} command. For example: \quotation \raw HTML

Copyright (c) 1989 The Regents of the University of California. All rights reserved.

Redistribution and use in source and binary forms are permitted provided that the above copyright notice and this paragraph are duplicated in all such forms and that any documentation, advertising materials, and other materials related to such distribution and use acknowledge that the software was developed by the University of California, Berkeley...


Copyright (c) 1991 by AT&T.

Permission to use, copy, modify, and distribute this software for any purpose without fee is hereby granted, provided that this entire notice is included in all copies of any software which is or includes a copy or modification of this software and in all copies of the supporting documentation for such software...


\endraw ... \endquotation \o \c mainclasses The \c mainclasses argument provides a complete alphabetical list of the main classes. Each class name is a link to the class's reference documentation. A class is related to the group of main classes by using the \l {mainclass}{\\mainclass} command. The list is rendered similarily to the list generated by the \l {list example}{\c classes} argument. \o \c overviews The \c overviews argument provides a complete alphabetical overview of the documentation. Each list entry is a link to the respective documentation page. The list includes pages declared using commands like \l {page}{\\page} and \l {group}{\\group}. The list omits examples and classes, and only lists the first page of documentation that contains two or more pages using commands like \l {nextpage}{\\nextpage}. For example: \quotation \raw HTML \endraw \endquotation \o \c related The \c related argument is used in combination with the \l {group}{\\group} command to list all the overviews related to the given group. Each list entry is a link to the respective documentation page. \o \c relatedinline The \c related argument is used in combination with the \l {group}{\\group} command to collect all documentation related to the given group. The various documentation snippets are copied directly into the group page. \o \c service The \c service argument provides a complete alphabetical list of the services. Each service name is a link to the service's reference documentation. A service is identified within the documentation by the \l {service}{\\service} command. \endlist \row \o \bold \\if \target if \o \bold {The \\if command and the corresponding \\endif command enclose parts of a QDoc comment that only will be included if the condition specified by the command's argument is true.} The command reads the rest of the line and parses it as an C++ #if statement. For example: \code / *! \if defined(opensourceedition) \bold{Note:} This edition is for the development of \l{Qt Open Source Edition}{Free and Open Source} software only; see \l{Qt Commercial Editions}. \endif * / \endcode This QDoc comment will only be rendered if the \c opensourceedition preprocessor symbol is defined, and specified in the \l {definesvariable}{defines} variable in the configuration file to make QDoc process the code within #ifdef and #endif: \code defines = opensourceedition \endcode You can also define the preprocessor symbol manually on the command line. For more information see the documentation of the \l {definesvariable}{defines} variable. See also \l{endif}{\\endif}, \l{else}{\\else}, \l {definesvariable}{defines} and \l falsehoods. \row \o \bold \\endif \target endif \o \bold {The \\endif command and the corresponding \\if command enclose parts of a QDoc comment that will be included if the condition specified by the \l {if}{\\if} command's argument is true.} For more information, see the documentation of the \l {if}{\\if} command. See also \l{if}{\\if}, \l{else}{\\else}, \l {definesvariable}{defines} and \l falsehoods. \row \o \bold \\else \target else \o \bold {The \\else command specifies an alternative if the condition in the \l {if}{\\if} command is false.} The \\else command can only be used within \l {if}{\\if...\\endif} commands, but is useful when there is only two alternatives. For example: \code / *! The Qt 3 support library is provided to keep old source code working. In addition to the \c Qt3Support classes, Qt 4 provides compatibility functions when it's possible for an old API to cohabit with the new one. \if !defined(QT3_SUPPORT) \if defined(QT3_SUPPORTWARNINGS) The compiler emits a warning when a compatibility function is called. (This works only with GCC 3.2+ and MSVC 7.) \else To use the Qt 3 support library, you need to have the line QT += qt3support in your .pro file (qmake automatically define the QT3_SUPPORT symbol, turning on compatibility function support). You can also define the symbol manually (e.g., if you don't want to link against the \c Qt3Support library), or you can define \c QT3_SUPPORT_WARNINGS instead, telling the compiler to emit a warning when a compatibility function is called. (This works only with GCC 3.2+ and MSVC 7.) \endif \endif * / \endcode If the \c QT3_SUPPORT is defined, the comment will be rendered as \quotation The Qt 3 support library is provided to keep old source code working. In addition to the Qt3Support classes, Qt 4 provides compatibility functions when it's possible for an old API to cohabit with the new one. \endquotation If \c QT3_SUPPORT isn't defined but \c QT3_SUPPORT_WARNINGS is, the comment will be rendered as \quotation The Qt 3 support library is provided to keep old source code working. In addition to the Qt3Support classes, Qt 4 provides compatibility functions when it's possible for an old API to cohabit with the new one. The compiler emits a warning when a compatibility function is called. (This works only with GCC 3.2+ and MSVC 7.) \endquotation If none of the symbols are defined, the comment will be rendered as \quotation The Qt 3 support library is provided to keep old source code working. In addition to the \c Qt3Support classes, Qt 4 provides compatibility functions when it's possible for an old API to cohabit with the new one. To use the Qt 3 support library, you need to have the line QT += qt3support in your .pro file (qmake automatically define the QT3_SUPPORT symbol, turning on compatibility function support). You can also define the symbol manually (e.g., if you don't want to link against the \c Qt3Support library), or you can define \c QT3_SUPPORT_WARNINGS instead, telling the compiler to emit a warning when a compatibility function is called. (This works only with GCC 3.2+ and MSVC 7.) \endquotation See also \l{if}{\\if}, \l{endif}{\\endif}, \l {definesvariable}{defines} and \l falsehoods. \row \o \bold \\include \target include \o \bold {The \\include command expands to the contents of the file specified by the command's argument.} \warning This is preliminary functionality. For more information, see the \l {26-qdoc-commands-compatibility.html#include-versus-input} {compatibility} section. The command takes a file name as an argument, and is useful when some piece of the documentation is used repeatedly: Move the repetetive text into a separate file, and use the \\include command whenever you want to insert the separate documentation. The contents of such a file should follow QDoc syntax, excluding the enclosing \c{/}\c{*!} ... \c{*}\c{/} marks. To ensure that QDoc won't attempt to read the file as a stand-alone piece of documentation, we recommend that you use the \c .qdocinc extension. For example: \code / *! \page corefeatures.html \title Core Features \include examples/signalandslots.qdocinc \include examples/objectmodel.qdocinc \include examples/layoutmanagement.qdocinc * / \endcode will be rendered as \quotation \raw HTML

Core Features

\endraw \include examples/signalandslots.qdocinc \include examples/objectmodel.qdocinc \include examples/layoutmanagement.qdocinc \endquotation Here is the actual \c .qdocinc files: \l signalandslots.qdocinc, \l objectmodel.qdocinc, \l layoutmanagement.qdocinc \row \o \bold \\meta \target meta \o \bold {The \\meta command is the QDoc equivalent to the HTML \c meta tag.} The command accepts two arguments: The first argument (the following word) is equivalent to the HTML meta tag's \i name variable, and the second argument (the rest of the line) is equivalent to the tag's \i contents variable. For example: \code / *! \meta author Summerfield \section1 Automatic Dialogs \abstract This article shows how to maintain sets of "attributes" (QVariant values), and how to allow users to view and edit them using dialogs that are created dynamically based on the attributes and their types. \endabstract The Attributes class described in this article holds a set of QVariants, and can create a dialog to present the QVariants to the user in an appropriate way. ... * / \endcode will be included in the generated HTML page as \code ... ... \endcode \row \o \bold \\omit \target omit \o \bold {The \\omit command and the correspondning \\endomit command delimit parts of the documentation that you want QDoc to skip.} For example: \code / *! \table \row \o Basic Widgets \o Basic GUI widgets such as buttons, comboboxes and scrollbars. \omit \row \o Component Model \o Interfaces and helper classes for the Qt Component Model. \endomit \row \o Database Classes \o Database related classes, e.g. for SQL databases. \endtable * / \endcode will be rendered as \raw HTML
Basic Widgets Basic GUI widgets such as buttons, comboboxes and scrollbars.
Database Classes Database related classes, e.g. for SQL databases.
\endraw \row \o \bold \\raw \target raw \o \bold {The \\raw command and the corresponding \\endraw command delimit a block of raw mark-up language code.} The command takes an argument specifying the code's format; currently the only supported format is HTML. The \\raw command is useful if you want some special HTML effects in your documentation. For example: \code / *! Qt has some predefined QColor objects. For example: \raw HTML

Blue(#0000ff), dark blue(#000080) and cyan(#00ffff). \endraw * / \endcode will be rendered as \quotation Qt has some predefined QColor objects. For example: \raw HTML

Blue(#0000ff), dark blue(#000080) and cyan(#00ffff). \endraw \endquotation \row \o \bold \\unicode \target unicode \o \bold {The \\unicode command allows you to insert an arbitrary Unicode character in the document.} The command takes an argument specifying the character as an integer. By default, base 10 is assumed, unless a '0x' or '0' prefix is specified (for base 16 and 8, respectively). For example: \code O G\unicode{0xEA}nio e as Rosas \unicode 0xC0 table en famille avec 15 \unicode 0x20AC par jour \unicode 0x3A3 \i{a}\sub{\i{i}} \endcode will be rendered as \quotation O G\unicode{0xEA}nio e as Rosas \unicode 0xC0 table en famille avec 15 \unicode 0x20AC par jour \unicode 0x3A3 \i{a}\sub{\i{i}} \endquotation The \\raw command follows the same conventions as the \l {i}{\\i} command for \l {argument}{punctuation and use of braces} for the argument. \endtable */ /*! \page 12-1-signalandslots.html \previouspage Miscellaneous Commands \contentspage QDoc Manual - Table of Contents \title signalandslots.qdocinc \quotefile examples/signalandslots.qdocinc */ /*! \page 12-2-objectmodel.html \previouspage Miscellaneous Commands \contentspage QDoc Manual - Table of Contents \title objectmodel.qdocinc \quotefile examples/objectmodel.qdocinc */ /*! \page 12-3-layoutmanagement.html \previouspage Miscellaneous Commands \contentspage QDoc Manual - Table of Contents \title layoutmanagement.qdocinc \quotefile examples/layoutmanagement.qdocinc */ /*! \page 13-qdoc-commands-topical.html \previouspage Miscellaneous Commands \contentspage QDoc Manual - Table of Contents \nextpage Contextual Commands \title Topical Commands The topical commands tell QDoc what is being documented (i.e. existing units like classes, functions and examples), and some of the commands allows you to create extra pages. \section1 Alphabetical List \l {13-qdoc-commands-topical.html#class}{\\class}, \l {13-qdoc-commands-topical.html#enum}{\\enum}, \l {13-qdoc-commands-topical.html#example-command}{\\example}, \l {13-qdoc-commands-topical.html#externalpage}{\\externalpage}, \l {13-qdoc-commands-topical.html#fn}{\\fn}, \l {13-qdoc-commands-topical.html#group}{\\group}, \l {13-qdoc-commands-topical.html#headerfile}{\\headerfile}, \l {13-qdoc-commands-topical.html#macro}{\\macro}, \l {13-qdoc-commands-topical.html#module}{\\module}, \l {13-qdoc-commands-topical.html#namespace}{\\namespace}, \l {13-qdoc-commands-topical.html#page}{\\page}, \l {13-qdoc-commands-topical.html#property}{\\property}, \l {13-qdoc-commands-topical.html#service}{\\service}, \l {13-qdoc-commands-topical.html#typedef}{\\typedef}, \l {13-qdoc-commands-topical.html#variable}{\\variable}, \section1 General Description When QDoc is processing a comment, it will try to connect the documentation to the source code. For that reason it will first look for the topical commands. If there is no such command, it will try to tie the documentation to the immediately following code. If there is no topical command, and the documentation cannot be tied to following code, the documentation is simply lost. \target topical argument The documented unit's name is passed as the unique argument for all the topical commands. The argument's naming convention is the documented unit's complete name. For example: \code \enum QComboBox::InsertPolicy \endcode Functions is a special case, the argument's naming convention for the \l {fn}{\\fn} command is that of the function's definition outside the class definition. For example: \code \fn void PreviewWindow::setWindowFlags() \endcode A topical command can appear anywhere in a comment, but must stand alone on its own line. If the argument spans several lines, make sure that each line (except the last one) is ended with a backslash. In addition QDoc counts parentheses, which means that if it encounters a '(' it considers everything until the closing ')' as its argument. If a topical command is repeated with different arguments, the same documentation will appear for both the units. For example: \code / *! \fn void PreviewWindow::setWindowFlags() \fn void ControllerWindow::setWindowFlags() Sets the widgets flags using the QWidget::setWindowFlags() function. Then runs through the available window flags, creating a text that contains the names of the flags that matches the flags parameter, displaying the text in the widgets text editor. * / \endcode The \c PreviewWindow::setWindowFlags() and \c ControllerWindow::setWindowFlags() functions will get the same documentation. \section1 Command Descriptions \table \header \o Command \o Description \row \o \bold \\class \target class \o \bold {The \\class command tells QDoc that a class is part of the public API, and lets you enter a detailed description.} The command follows \l {topical argument}{the general topical command convention} for the argument, and supports nested classes, for example: \code / *! \class QMap::iterator \brief The QMap::iterator class provides an STL-style non-const iterator for QMap and QMultiMap. QMap features both \l{STL-style iterators} and \l{Java-style iterators}. The STL-style iterators ... * / \endcode The generated HTML documentation for the specified class is put in \c classname.html. For example, the documentation for the \c PreviewWindow class is located in \c previewwindow.html. \target framework In addition to render the detailed description, the \\class comand will generate the documentation framework, i.e. a list of the class's types, properties, functions, signals and slots with empty documentation. The command is typically accompanied with a \l {brief}{\\brief} command, a \l {mainclass}{\\mainclass} command, an \l {ingroup}{\\ingroup} command and a \l {sa}{\\sa} command. For example: \code / *! \class PreviewWindow \brief The PreviewWindow class is a custom widget displaying the names of its currently set window flags in a read-only text editor. \mainclass \ingroup miscellaneous The PreviewWindow class inherits QWidget. The widget displays the names of its window flags set with the \l {function}{setWindowFlags()} function. It is also provided with a QPushButton that closes the window. ... \sa QWidget * / \endcode will be rendered as \quotation \raw HTML

PreviewWindow Class Reference

\endraw The PreviewWindow class is a custom widget displaying the names of its currently set window flags in a read-only text editor. \l {preview window}{More...} \raw HTML

Properties

\endraw \list \o 52 properties inherited from QWidget \o 1 property inherited from QObject \endlist \raw HTML

Public Functions

\endraw \list \o \l {constructor}{PreviewWindow}(QWidget *parent = 0) \o void \l {function}{setWindowFlags}(Qt::WindowFlags flags) \endlist \list \o 183 public functions inherited from QWidget \o 28 public functions inherited from QObject \endlist \raw HTML

Public Slots

\endraw \list \o 17 public slots inherited from QWidget \o 1 public slot inherited from QObject \endlist \raw HTML

Additional Inherited Members

\endraw \list \o 1 signal inherited from QWidget \o 1 signal inherited from QObject \o 4 static public members inherited from QWidget \o 4 static public members inherited from QObject \o 39 protected functions inherited from QWidget \o 7 protected functions inherited from QObject \endlist \target preview window \raw HTML

Detailed Description

\endraw The PreviewWindow class is a custom widget displaying the names of its currently set window flags in a read-only text editor. The PreviewWindow class inherits QWidget. The widget displays the names of its window flags set with the \l {function}{setWindowFlags()} function. It is also provided with a QPushButton that closes the window. ... See also QWidget. \raw HTML

Member Function Documentation

\endraw \target constructor \raw HTML

PreviewWindow(QWidget *parent = 0)

\endraw Constructs a preview window widget with \i parent. \target function \raw HTML

setWindowFlags(Qt::WindowFlags flags)

\endraw Sets the widgets flags using the QWidget::setWindowFlags() function. Then runs through the available window flags, creating a text that contains the names of the flags that matches the flags parameter, displaying the text in the widgets text editor. \endquotation \row \o \bold \\enum \target enum \o \bold {The \\enum command allows you to document a C++ enum.} The command follows \l {topical argument}{the general topical command convention} for the argument. The enum items are documented using the \l {value}{\\value} command. If an item isn't documented, QDoc will emit a warning. This can be avoided using the \l {omitvalue}{\\omitvalue} command excluding an item from the documentation. The enum documentation will be located in the associated class, header file or namespace documentation. For example: \code enum Corner { TopLeftCorner = 0x00000, TopRightCorner = 0x00001, BottomLeftCorner = 0x00002, BottomRightCorner = 0x00003 #if defined(QT3_SUPPORT) && !defined(Q_MOC_RUN) ,TopLeft = TopLeftCorner, TopRight = TopRightCorner, BottomLeft = BottomLeftCorner, BottomRight = BottomRightCorner #endif }; \endcode In case of the Qt::Corner enum, \code / *! \enum Qt::Corner This enum type specifies a corner in a rectangle: \value TopLeftCorner The top-left corner of the rectangle. \value TopRightCorner The top-right corner of the rectangle. \value BottomLeftCorner The bottom-left corner of the rectangle. \value BottomRightCorner The bottom-right corner of the rectangle. \omitvalue TopLeft \omitvalue TopRight \omitvalue BottomLeft \omitvalue BottomRight * / \endcode this associated QDoc comment will be rendered as \quotation \raw HTML

enum Qt::Corner

This enum type specifies a corner in a rectangle:

Constant Value Description
Qt::TopLeftCorner 0x00000 The top-left corner of the rectangle.
Qt::TopRightCorner 0x00001 The top-right corner of the rectangle.
Qt::BottomLeftCorner 0x00002 The bottom-left corner of the rectangle.
Qt::BottomRightCorner 0x00003 The bottom-right corner of the rectangle.
\endraw \endquotation in qt.html. See also \l {value}{\\value} and \l {omitvalue}{\\omitvalue}. \row \o \bold \\example \target example-command \o \bold {The \\example command allows you to document an example.} The command follows \l {topical argument}{the general topical command convention} for the argument. In particular the command's argument is the example's path relative to the paths listed in the \l exampledirs configuration variable. The documentation will be located in \i {path-to-example}.html, and QDoc will add a list of all the example files at the top of this documentation page. For example, if \l exampledirs contain \c $QTDIR/examples/widgets/imageviewer, then \code / *! \example widgets/imageviewer \title ImageViewer Example \subtitle The example shows how to combine QLabel and QScrollArea to display an image. ... * / \endcode will be rendered as \quotation \raw HTML

Image Viewer Example

\endraw Files: \list \o \l{http://qt.nokia.com/doc/4.0/widgets-imageviewer-imageviewer-cpp.html} {widgets/imageviewer/imageviewer.cpp} \o \l{http://qt.nokia.com/doc/4.0/widgets-imageviewer-imageviewer-h.html} {widgets/imageviewer/imageviewer.h} \o \l{http://qt.nokia.com/doc/4.0/widgets-imageviewer-main-cpp.html} {widgets/imageviewer/main.cpp} \endlist The example shows how to combine QLabel and QScrollArea to display an image. ... \endquotation in widgets-imageviewer.html. \row \o \bold \\fn \target fn \o \bold {The \\fn command allows you to document a function.} The command follows \l {topical argument}{the general topical command convention} for the argument. In particular it is important that the return type of the function, whether it is \c const or not and the complete set of arguments with type are included in the argument. If the referenced function doesn't exist, QDoc will emit a warning. Also, the \\fn command is QDoc's default command, i.e. when no topical command can be found within a QDoc comment, QDoc tries to tie the documentation to the following code as if it was function documentation. This means that the command normally isn't necessary since the recommended style is to write the function documentation directly before the function implementation in the \c .cpp file. In fact, it should only be used for inline functions implemented in the \c .h file. For example: \code / *! \fn bool QToolBar::isAreaAllowed(Qt::ToolBarArea area) const Returns true if this toolbar is dockable in the given \a area; otherwise returns false. * / \endcode will be rendered as \quotation \raw HTML

bool QToolBar::isAreaAllowed(Qt::ToolBarArea area) const

\endraw Returns true if this toolbar is dockable in the given \a area; otherwise returns false. \endquotation See also \l {overload}{\\overload}. \row \o \bold \\group \target group \o \bold {The \\group command creates a separate page that lists the classes belonging to the group specified by the command's argument.} The command follows \l {topical argument}{the general topical command convention} for the argument. The \\group command is typically followed by a \l {title}{\\title} command and a short introduction to the group. The generated HTML documentation for the specified group is put in \i{group}.html. A class can be related to a group by using the \l {ingroup}{\\ingroup} command. In addition, overviews can be related to a group using the same command, but these must be listed explicitly using the \l {generatelist}{\\generatelist} command (see example below). Each class is listed with a link to the class reference page and a brief description based on the classes' \l {brief}{\\brief} texts. For example: \code / *! \group io \title Input/Output and Networking These classes are used to handle input and output to and from external devices, processes, files etc. as well as manipulating files and directories. * / \endcode will be rendered as \quotation \raw HTML

Input/Output and Networking

These classes are used to handle input and output to and from external devices, processes, files etc. as well as manipulating files and directories.

QAbstractSocket The base functionality common to all socket types
QBuffer QIODevice interface for a QByteArray
QClipboard Access to the window system clipboard
\endraw \endquotation in io.html. Note that overviews related to the given group, must be listed explicitly using the \l {generatelist}{\\generatelist} command with the \c related argument. For example: \code / *! \group architecture \title Architecture These documents describe aspects of Qt's architecture and design, including overviews of core Qt features and technologies. \generatelist{related} * / \endcode See also \l {ingroup}{\\ingroup} and \l {generatelist}{\\generatelist}. \row \o \bold \\headerfile \target headerfile \o \bold {The \\headerfile command allows you to document global functions, types and macros declared in a header file.} The command follows \l {topical argument}{the general topical command convention} for the argument, and the generated HTML documentation for the specified header file is put in \i{headerfilename}.html. A function, type or macro can be associated with a headerfile using the \l {relates}{\\relates} command. If the referenced header file doesn't exist, the \\headerfile command will still create a documentation page for a header file with the referenced file's name. For example: \code / *! \headerfile \title Generic Algorithms \brief The header file provides generic template-based algorithms. Qt provides a number of global template functions in \c that work on containers and perform well-know algorithms. * / \endcode will be rendered as \quotation \raw HTML

<QtAlgorithms> - Generic Algorithms

The header file provides generic template-based algorithms. More...

Functions

  • RandomAccessIterator qBinaryFind (RandomAccessIterator begin, RandomAccessIterator end, const T & value)
  • ...

\endraw \target header \raw HTML

Detailed Description

The header file provides generic template-based algorithms.

\endraw Qt provides a number of global template functions in \c that work on containers and perform well-know algorithms. ... \endquotation in qtalgorithms.html. \row \o \bold \\macro \target macro \o \bold {The \\macro command allows you to document a C++ macro.} The command follows \l {topical argument}{the general topical command convention} for the argument. QDoc recognizes three different macro syntax: function-like macros like Q_ASSERT(), declaration-style macros like Q_PROPERTY() and macros without parentheses like Q_OBJECT. The \\macro command must be followed by a \l {relates}{\\relates} command which attaches the documentation to that of a related class, header file. or namespace. Otherwise the documentation will be lost. For example: \code / *! \macro void Q_ASSERT(bool test) \relates Prints a warning message containing the source code file name and line number if \a test is false. ... \sa Q_ASSERT_X(), qFatal(), {Debugging Techniques} * / \endcode will be rendered as \quotation \raw HTML

void Q_ASSERT ( bool test )

\endraw Prints a warning message containing the source code file name and line number if \a test is false. ... See also Q_ASSERT_X(), qFatal() and \l {Debugging Techniques}. \endquotation in qtglobal.html. And \code / *! \macro Q_PROPERTY(...) \relates QObject This macro declares a QObject property. The syntax is: ... \sa {Qt's Property System} * / \endcode will be rendered as \quotation \raw HTML

Q_PROPERTY ( ... )

\endraw This macro declares a QObject property. The syntax is: ... See also \l {Qt's Property System}. \endquotation in qobject.html. And \code / *! \macro Q_OBJECT \relates QObject The Q_OBJECT macro must appear in the private section of a class definition that declares its own signals and slots or that uses other services provided by Qt's meta-object system. ... \sa {Meta-Object System}, {Signals and Slots}, {Qt's Property System} * / \endcode will be rendered as \quotation \raw HTML

Q_OBJECT

\endraw The Q_OBJECT macro must appear in the private section of a class definition that declares its own signals and slots or that uses other services provided by Qt's meta-object system. ... See also \l {Meta-Object System}, \l {Signals and Slots} and \l {Qt's Property System}. \endquotation in qobject.html. \row \o \bold \\module \target module \o \bold {The \\module creates a separate page that lists the classes belonging to the module specified by the command's argument.} The command follows \l {topical argument}{the general topical command convention} for the argument. A class can be related to a module using the \l {inmodule}{\\inmodule} command. The \\module command is typically followed by the \l {title}{\\title} and \l {brief}{\\brief} commands. Each class is listed with a link to the class reference page and a brief description based on the classes' \l {brief}{\\brief} texts. For example: \code / *! \module QtNetwork \title QtNetwork Module \brief The QtNetwork module offers classes that allow you to write TCP/IP clients and servers. The network module provides classes to make network programming easier and portable. It offers both high-level classes such as QHttp and QFtp that implement specific application-level protocols, and lower-level classes such as QTcpSocket, QTcpServer, and QUdpSocket. * / \endcode will be rendered as \quotation \raw HTML

QtNetwork Module

\endraw The QtNetwork module offers classes that allow you to write TCP/IP clients and servers.\l {module details}{More...} \raw HTML

QAbstractSocket The base functionality common to all socket types
QFtp Implementation of the FTP protocol
... ...


\endraw \target module details \raw HTML

Detailed Description

The QtNetwork module offers classes that allow you to write TCP/IP clients and servers.

The network module provides classes to make network programming easier and portable. It offers both high-level classes such as QHttp and QFtp that implement specific application-level protocols, and lower-level classes such as QTcpSocket, QTcpServer, and QUdpSocket.

\endraw ... \endquotation in qtnetwork.html. See also \l {inmodule}{\\inmodule} \row \o \bold \\namespace \target namespace \o \bold {The \\namespace command allows you to document a C++ namespace.} The command follows \l {topical argument}{the general topical command convention} for the argument. QDoc will generate the same additional links and documentation for all the members of the namespace as it does for \l {framework}{classes}. The documentation for the specified namespace is put in \i {namespace}.html. For example: \code / *! \namespace Qt \brief The Qt namespace contains miscellaneous identifiers used throughout the Qt library. * / \endcode will be rendered as \quotation \raw HTML

Qt Namespace Reference

The Qt namespace contains miscellaneous identifiers used throughout the Qt library. More...

#include <Qt>

Types


\endraw \target name \raw HTML

Detailed Description

The Qt namespace contains miscellaneous identifiers used throughout the Qt library.

\endraw ... \endquotation in qt.html. \row \o \bold \\page \target page \o \bold {The \\page command allows you to create a stand-alone documentation page.} The command follows \l {topical argument}{the general topical command convention} for the argument. The page's title can be set using the \l {title}{\\title} command. For example: \code / *! \page aboutqt.html \title About Qt Qt by Trolltech is a C++ toolkit for cross-platform GUI application development. Qt provides single-source portability across Microsoft Windows, Mac OS X, Linux, and all major commercial Unix variants. (A version of Qt 4 for embedded Linux will be available in August/September 2005.) Qt provides application developers with all the functionality needed to build applications with state-of-the-art graphical user interfaces. Qt is fully object-oriented, easily extensible, and allows true component programming. ... * / \endcode will be rendered in its own HTML file: \l{About Qt}. \row \o \bold {\\externalpage} \target externalpage \o \bold {The \\externalpage command gives a title to an external URL.} The command follows \l {topical argument}{the general topical command convention} for the argument. For example: \code / *! \externalpage http://www.trolltech.com/products/embedded/index.html \title Qtopia Core * / \endcode The QDoc comment above allows you to link to the Qtopia Core webpage by simply linking to the given title. For example: \code / *! The broad scope of the \l {Qtopia Core} API enables it to be used across a wide variety of development projects. * / \endcode will be rendered as \quotation The broad scope of the \l {http://www.trolltech.com/products/embedded/index.html}{Qtopia Core} API enables it to be used across a wide variety of development projects. \endquotation To achieve the same result without using the \\externalpage command, you would have to hard code the adress into your documentation: \code / *! The broad scope of the \l {http://www.trolltech.com/products/embedded/index.html}{Qtopia Core} API enables it to be used across a wide variety of development projects. * / \endcode The \\externalpage command makes it easier to maintain the documentation. If the adress changes, you only need to change the argument of the \\externalpage command. \row \o \bold \\property \target property \o \bold {The \\property command allows you to document a Qt property.} The command follows \l {topical argument}{the general topical command convention} for the argument. A property is defined using the Q_PROPERTY() macro. The macro takes as arguments the property's name and its set, reset and get functions. For example: \code Q_PROPERTY(QString state READ state WRITE setState) \endcode The set, reset and get functions don't need to be documented, documenting the property is sufficient. QDoc will generate a list of the access function that will appear in the property documentation which in turn will be located in the documentation of the class that defines the property. The \\property command is typically accompanied with a \l {brief}{\\brief} command. In the case of a property, the \l {brief}{\\brief} command's argument is a sentence fragment that will be included in a one-sentence description of the property generated by QDoc. The command follows the same rules for the \l {brief property}{description} as the \l {variable}{\\variable} command. For example: \code / *! \property QPushButton::flat \brief whether the border is disabled This property's default is false. * / \endcode will be rendered as \quotation \raw HTML

flat : bool

\endraw This property holds whether the border is disabled. This property's default is false. Access functions: \list \o \bold { bool isFlat () const} \o \bold { void setFlat ( bool )} \endlist \endquotation in qpushbutton.html. And \code / *! \property QWidget::width \brief the width of the widget excluding any window frame See the \l {Window Geometry} documentation for an overview of window geometry. \sa geometry, height, size * / \endcode will be rendered as \quotation \raw HTML

width : const int

\endraw This property holds the width of the widget excluding any window frame. See the \l {Window Geometry} documentation for an overview of window geometry. Access functions: \list \o \bold { int width () const} \endlist See also \l{QWidget::geometry}{geometry}, \l{QWidget::height}{height}, and \l{QWidget::size}{size}. \endquotation in qwidget.html. \row \o \bold \\service \target service \o \bold {The \\service command tells QDoc that a class is a service class and specifies its alias, i.e. the associated service's name.} The command takes two arguments, the service class's name and the associated alias. For example: \code / *! \service TimeService Time ... * / class TimeService : public QCopObjectService { ... } \endcode See also \l {class}{\\class} and \l {generatelist}{\\generatelist}. \row \o \bold \\typedef \target typedef \o \bold {The \\typedef command allows you to document a C++ type definition.} The command follows \l {topical argument}{the general topical command convention} for the argument. The documentation will be located in the associated class, header file or namespace documentation. When documenting a global type definition, the \\typedef command must be accompanied with a \l {relates}{\\relates} command. For example: \code / *! \typedef QObjectList \relates QObject Synonym for QList. * / \endcode will be rendered as \quotation \raw HTML

typedef QObjectList

\endraw Synonym for QList. \endquotation in qobject.html. Another, although more rare, example is \code / *! \typedef QMsgHandler \relates QtGlobal This is a typedef for a pointer to a function with the following signature: \code void myMsgHandler(QtMsgType, const char *); \ endcode \sa QtMsgType, qInstallMsgHandler() * / \endcode will be rendered as \quotation \raw HTML

typedef QtMsgHandler

\endraw This is a typedef for a pointer to a function with the following signature: \raw HTML
    void myMsgHandler(QtMsgType, const char *);
\endraw See also QtMsgType and qInstallMsgHandler(). \endquotation in qtglobal.html. Other type definitions are located in the documentation of the class that defines it, for example: \code / *! \typedef QLinkedList::Iterator Qt-style synonym for QList::iterator. * / \endcode will be rendered as \quotation \raw HTML

typedef QLinkedList::Iterator

\endraw Qt-style synonym for QList::iterator. \endquotation in qlinkedlist.html. \row \o \bold \\variable \target variable \o \bold {The \\variable command allows you to document a member variable or a constant.} The command follows \l {topical argument}{the general topical command convention} for the argument. The \\variable command is typically followed by a \l {brief}{\\brief} command; QDoc will generate the documentation for the variable based on the brief description. The command follows the same rules for the \l {brief property}{description} as the \l {property}{\\property} command. The documentation will be located in the in the associated class, header file or namespace documentation. In case of a member variable: \code / *! \variable QStyleOption::palette \brief the palette that should be used when painting the control * / \endcode will be rendered as \quotation \raw HTML

QPalette QStyleOption::palette

\endraw This variable holds the palette that should be used when painting the control. \endquotation in qstyleoption.html. But you can also use the \\variable command to document constants like for example the \c Type and \c UserType constants in the QTreeWidgetItem class: \code enum { Type = 0, UserType = 1000 }; \endcode Then \code / *! \variable QTreeWidgetItem::Type The default type for tree widget items. \sa UserType, type() * / \endcode and \code / *! \variable QTreeWidgetItem::UserType The minimum value for custom types. Values below UserType are reserved by Qt. \sa Type, type() * / \endcode will be rendered as \quotation \raw HTML

const int QTreeWidgetItem::Type

\endraw The default type for tree widget items. See also \l {QTreeWidgetItem::UserType}{UserType} and \l {QTreeWidgetItem::type()}{type()}. \raw HTML

const int QTreeWidgetItem::UserType

\endraw The minimum value for custom types. Values below UserType are reserved by Qt. See also \l {QTreeWidgetItem::Type}{Type} and \l{QTreeWidgetItem::type()}{type()}. \endquotation in qtreewidget.html. \endtable */ /*! \page 14-qdoc-commands-contextualcommands.html \previouspage Topical Commands \contentspage QDoc Manual - Table of Contents \nextpage Navigation Commands \title Contextual Commands The contextual commands provide QDoc with information, that it wouldn't figure out otherwise, about the documented object. For example whether a class is thread-safe or not. These commands can appear anywhere within a QDoc comment. \section1 Alphabetical List \l {16-qdoc-commands-status.html#compat}{\\compat}, \l {15-qdoc-commands-navigation.html#contentspage}{\\contentspage}, \l {15-qdoc-commands-navigation.html#indexpage}{\\indexpage}, \l {19-qdoc-commands-grouping.html#ingroup}{\\ingroup}, \l {19-qdoc-commands-grouping.html#inmodule}{\\inmodule}, \l {16-qdoc-commands-status.html#internal}{\\internal}, \l {19-qdoc-commands-grouping.html#mainclass}{\\mainclass}, \l {15-qdoc-commands-navigation.html#nextpage}{\\nextpage}, \l {17-qdoc-commands-thread.html#nonreentrant}{\\nonreentrant}, \l {16-qdoc-commands-status.html#obsolete}{\\obsolete}, \l {18-qdoc-commands-relating.html#overload}{\\overload}, \l {16-qdoc-commands-status.html#preliminary}{\\preliminary}, \l {15-qdoc-commands-navigation.html#previouspage}{\\previouspage}, \l {17-qdoc-commands-thread.html#reentrant}{\\reentrant}, \l {18-qdoc-commands-relating.html#reimp}{\\reimp}, \l {18-qdoc-commands-relating.html#relates}{\\relates}, \l {15-qdoc-commands-navigation.html#startpage}{\\startpage}, \l {17-qdoc-commands-thread.html#threadsafe}{\\threadsafe}, \l {20-qdoc-commands-title.html#title}{\\title} \section1 Categories \list \o \l {Navigation Commands} \o \l {Status Commands} \o \l {Thread Support Commands} \o \l {Relating Commands} \o \l {Grouping Commands} \o \l {Title Commands} \endlist */ /*! \page 15-qdoc-commands-navigation.html \previouspage Contextual Commands \contentspage QDoc Manual - Table of Contents \nextpage Status Commands \title Navigation Commands The navigation commands allow you to link the pages of a multipage document together. They provide the components of a navigation bar at the top and bottom of the document. They also provide browser and search engine support. \section1 Alphabetical List \l {15-qdoc-commands-navigation.html#contentspage}{\\contentspage}, \l {15-qdoc-commands-navigation.html#indexpage}{\\indexpage}, \l {15-qdoc-commands-navigation.html#nextpage}{\\nextpage}, \l {15-qdoc-commands-navigation.html#previouspage}{\\previouspage}, \l {15-qdoc-commands-navigation.html#startpage}{\\startpage} \section1 General Description The QDoc comments below shows a typical example using the navigation commands. \code / *! \page basicqt.html \contentspage {Basic Qt}{Contents} \nextpage Getting Started \indexpage Index \startpage Basic Qt \title Basic Qt The Qt toolkit is a C++ class library and a set of tools for building multiplatform GUI programs using a "write once, compile anywhere approach". Table of contents: \list \o \l {Getting Started} \o \l {Creating Dialogs} \o \l {Creating Main Windows} \endlist * / / *! \page gettingstarted.html \previouspage Basic Qt \contentspage {Basic Qt}{Contents} \nextpage Creating Dialogs \indexpage Index \startpage Basic Qt \title Getting Started This chapter shows how to combine basic C++ with the functionality provided by Qt to create a few small graphical interface (GUI) applications. * / / *! \page creatingdialogs.html \previouspage Getting Started \contentspage {Basic Qt}{Contents} \indexpage Index \startpage Basic Qt \title Creating Dialogs This chapter will teach you how to create dialog boxes using Qt. * / / *! \page index.html \indexpage Index \startpage Basic Qt \title Index \list \o \l {Basic Qt} \o \l {Creating Dialogs} \o \l {Getting Started} \endlist * / \endcode The second page of this multipage document, "Getting Started", will be rendered as \quotation \raw HTML

[Previous: Basic Qt] [Contents] [Next: Creating Dialogs]

Getting Started

This chapter shows how to combine basic C++ with the functionality provided by Qt to create a few small graphical interface (GUI) applications.

[Previous: Basic Qt] [Contents] [Next: Creating Dialogs]

\endraw \endquotation in creatingdialogs.html. In addition, the \l {indexpage}{\\indexpage} and \l {startpage}{\\startpage} commands specifies links to the page's index page and start page. These links are used by browsers and search engines. The index page is typically an alphabetical list of the document's titles and topics, while the start page is the page considered by the author to be the starting point of a multipage document. The links are included in the generated HTML source code but has no visual effect on the documentation: \code ... ... \endcode \section1 Command Descriptions \table \header \o Command \o Description \row \o \bold \\previouspage \target previouspage \o \bold {The \\previouspage command links the current page to the previous one in an ordered series of documents}. The command has two arguments, each enclosed by curly braces: The first is the link target, i.e. the title of the previous page, the second is the link text. If the page's title is equivalent to the link text, the second argument can be omitted. The command must stand alone on its own line. In the end, the link is rendered at the top and bottom of the current page. For an example, see the \l {General Description} section. \row \o \bold \\nextpage \target nextpage \o \bold {The \\nextpage command links the current page to the next page in an ordered series of documents}. The command follows the same syntax and argument convention as the \l {previouspage}{\\previouspage} command. For an example, see the \l {General Description} section. \row \o \bold \\startpage \target startpage \o \bold {The \\startpage command specifies the first document in a collection of documents.} The command must stand alone on its own line, and its unique argument is the title of the first document. QDoc will generate a link to the specified document which is included in the HTML file but has no visual effect on the documentation. The generated link type tells browsers and search engines which document is considered by the author to be the starting point of the collection. For an example, see the \l {General Description} section. \row \o \bold \\contentspage \target contentspage \o \bold {The \\contentspage command links the current page to a contents page}. The command follows the same syntax and argument convention as the \l {previouspage}{\\previouspage} command. For an example, see the \l {General Description} section. \row \o \bold \\indexpage \target indexpage \o \bold {The \\indexpage command specifies a document providing an index for the current document}. The command must stand alone on its own line, and its unique argument is the title of the index document. QDoc will generate a link to the specified document which is included in the HTML file but has no visual effect on the documentation. The generated link type tells browsers and search engines which document is considered by the author to be the index page for the current document. For an example, see the \l {General Description} section. \endtable */ /*! \page 16-qdoc-commands-status.html \previouspage Navigation Commands \contentspage QDoc Manual - Table of Contents \nextpage Thread Support Commands \title Status Commands The usage commands can indicate whether a documented object is under development, becoming obsolete, provided for compatibility reasons or simply not part of the public interface. They can describe the history of minor versions. And they can also describe a documented object's ability to handle multithreaded programming. \section1 Alphabetical List \l {16-qdoc-commands-status.html#compat}{\\compat}, \l {16-qdoc-commands-status.html#internal}{\\internal}, \l {16-qdoc-commands-status.html#obsolete}{\\obsolete}, \l {16-qdoc-commands-status.html#preliminary}{\\preliminary}, \l {16-qdoc-commands-status.html#since}{\\since} \section1 Command Description \table \header \o Command \o Description \row \o \bold \\preliminary \target preliminary \o \bold {The \\preliminary command indicates that the referenced function is under development.} The command must stand on its own line. The \\preliminary command expands to a notification in the function documentation, and marks the function as preliminary when it appears in lists. For example: \code / *! \preliminary Returns information about the joining properties of the character (needed for certain languages such as Arabic). * / QChar::Joining QChar::joining() const { return ::joining(*this); } \endcode will be rendered as \quotation \raw HTML

Joining QChar::joining () const

\endraw \bold {This function is under development and is subject to change.} Returns information about the joining properties of the character (needed for certain languages such as Arabic). \endquotation And the function's entry in QChar's list of functions will be rendered as \quotation \list \o ... \o Joining \l {http://qt.nokia.com/doc/4.0/qchar.html#Joining-enum} {joining}() const \c (preliminary) \o ... \endlist \endquotation \row \o \bold \\obsolete \target obsolete \o \bold {The \\obsolete command indicates that the referenced function no longer should be used in new code; there is no guarantee for how long it will remain in the library.} The command must stand on its own line. When generating the reference documentation for a class, QDoc will create and link to a separate page documenting its obsolete functions. Usually an equivalent function is provided as an alternative. For example: \code / *! \fn MyClass::MyObsoleteFunction \obsolete Use MyNewFunction() instead. * / \endcode will be rendered as \quotation \raw HTML

Obsolete Members for MyClass

\endraw \bold {The following class members are obsolete.} They are provided to keep old source code working. We strongly advise against using them in new code. ... \list \o void MyObsoleteFunction() \c (obsolete) \o ... \endlist \raw HTML

Member Function Documentation

void MyObsoleteFunction ()

Use MyNewFunction() instead.

\endraw ... \endquotation in myclass-obsolete.html \row \o \bold \\compat \target compat \o \bold {The \\compat command indicates that the referenced class or function is part of the support library provided to keep old source code working.} The command must stand on its own line. Usually an equivalent function or class is provided as an alternative. If the command is used within the documentation of a class, the command expands to a warning that the referenced class is part of the support library. The warning is located on top of the associated documentation. For example: \code / *! \class MyQt3SupportClass \compat * / \endcode will be rendered as \quotation \bold {This class is part of the Qt 3 support library.} It is provided to keep old source code working. We strongly advise against using it in new code. See the \l {http://qt.nokia.com/doc/4.0/porting4.html}{Porting Guide} for more information. \endquotation on the top of the MyQt3SupportClass class reference. If the command is used when documenting a function, QDoc will create and link to a separate page documenting Qt 3 support members when generating the reference documentation for the associated class. For example: \code / *! \fn MyClass::MyQt3SupportMemberFunction \compat Use MyNewFunction() instead. * / \endcode will be rendered as \quotation \raw HTML

Qt 3 Support Members for MyClass

\endraw \bold {The following class members are part of the Qt 3 support layer.} They are provided to help you port old code to Qt 4. We advise against using them in new code. ... \list \o void MyQt3SupportMemberFunction() \o ... \endlist \raw HTML

Member Function Documentation

void MyQt3SupportMemberFunction ()

Use MyNewFunction() instead.

\endraw ... \endquotation in myclass-qt3.html \row \o \bold \\internal \target internal \o \bold {The \\internal command indicates that the referenced function is not part of the public interface.} The command must stand on its own line. QDoc ignores the documentation as well as the documented item, when generating the associated class reference documenation. For example: \code / *! \internal Tries to find the decimal separator. If it can't find it and the thousand delimiter is != '.' it will try to find a '.'; * / int QDoubleSpinBoxPrivate::findDelimiter (const QString &str, int index) const { int dotindex = str.indexOf(delimiter, index); if (dotindex == -1 && thousand != dot && delimiter != dot) dotindex = str.indexOf(dot, index); return dotindex; } \endcode in qspinbox.cpp, will not be rendered at all. \row \o \bold \\since \target since \o \bold {The \\since command tells in which minor release the associated functionality was added.} For example: \code / *! \since 4.1 Returns an icon for \a standardIcon. ... \sa standardIconImplementation(), standardPixmap() * / QIcon QStyle::standardIcon(StandardPixmap standardIcon, const QStyleOption *option, const QWidget *widget) const { } \endcode will be rendered as \quotation \raw HTML

QIcon QStyle::standardIcon(StandardPixmap standardIcon, const QStyleOption *option, const QWidget *widget) const

\endraw This function was introduced in Qt version 4.1 Returns an icon for \a standardIcon. ... See also \l {QStyle::standardIconImplementation()}{standardIconImplementation()} and \l {QStyle::standardPixmap()}{standardPixmap()}. \endquotation QDoc generates the "Qt" reference from the \l {25-qdoc-configuration-derivedprojects.html#project}{\c project} configuration variable. For that reason this reference will change according to the current documentation project. See also \l {25-qdoc-configuration-derivedprojects.html#project}{\c project}. \endtable */ /*! \page 17-qdoc-commands-thread.html \previouspage Status Commands \contentspage QDoc Manual - Table of Contents \nextpage Relating Commands \title Thread Support Commands The thread support commands specify the level of support for multithreaded programming of a class or function. \section1 Alphabetical List \l {17-qdoc-commands-thread.html#nonreentrant}{\\nonreentrant}, \l {17-qdoc-commands-thread.html#reentrant}{\\reentrant}, \l {17-qdoc-commands-thread.html#threadsafe}{\\threadsafe} \section1 General Description There are three levels of support for multithreaded programming of a class or function: \c threadsafe, \c reentrant and \c nonreentrant. The default is \c nonreentrant which means that the associated class or function cannot be called by multiple threads. \c Reentrant and \c threadsafe are levels primarily used for classes. \c Reentrant means that all the functions in the referenced class can be called simultaneously by multiple threads, provided that each invocation of the functions reference unique data. While \c threadsafe means that all the functions in the referenced class can be called simultaneously by multiple threads even when each invocation references shared data. When a class is declared \c reentrant or \c threadsafe, using the \l {reentrant}{\\reentrant} and \l {threadsafe}{\\threadsafe} commands respectively, functions in the referenced class can be declared \c nonreentrant, using the \l {nonreentrant}{\\nonreentrant} command, excluding the functions from the general view. For example: \code / *! \class QLocale \brief The QLocale class converts between numbers and their string representations in various languages. \reentrant \ingroup i18n \ingroup text \mainclass QLocale is initialized with a language/country pair in its constructor and offers number-to-string and string-to-number conversion functions similar to those in QString. ... * / / *! \nonreentrant Sets the global default locale to \a locale. These values are used when a QLocale object is constructed with no arguments. If this function is not called, the system's locale is used. \warning In a multithreaded application, the default locale should be set at application startup, before any non-GUI threads are created. \sa system() c() * / void QLocale::setDefault(const QLocale &locale) { default_d = locale.d; } \endcode will be rendered as \quotation \raw HTML

QLocale Class Reference

\endraw The QLocale class converts between numbers and their string representations in various languages. More... \code #include \endcode \bold {Note:} All the functions in this class are \l {threads.html#reentrant}{reentrant}, except \l {QLocale::setDefault()}{setDefault()}. ... \raw HTML

Member Type Documentation

\endraw ... \raw HTML

void QLocale::setDefault ( const QLocale & locale )

\endraw Sets the global default locale to locale. These values are used when a QLocale object is constructed with no arguments. If this function is not called, the system's locale is used. \warning In a multithreaded application, the default locale should be set at application startup, before any non-GUI threads are created. \warning This function is not reentrant. See also \l {QLocale::system()}{system()} and \l {QLocale::c()}{c()}. ... \endquotation As shown above, QDoc generates a notification when a class is declared reentrant, and lists the exceptions (the declared nonreentrant functions). A link to the general documentation on \l {threads.html#reentrant}{reentrancy and thread-safety} is included. In addition a warning, "\bold Warning: This function is not reentrant.", is generated in the nonreentrant functions' documentation. QDoc will generate the same notification and warnings when a class is declared threadsafe. For more information see the general documentation on \l {threads.html#reentrant}{reentrancy and thread-safety}. \section1 Command Descriptions \table \header \o Command \o Description \row \o \bold \\threadsafe \target threadsafe \o \bold {The \\threadsafe command indicates that the associated class or function can be called simultaneously by multiple threads even when each invocation references shared data.} The command must stand on its own line. The generated documentation resulting from using the \\threadsafe command is similar to the result of using the \l {reentrant}{\\reentrant} command. For an example, see the \l {General Description} section. See also \l{reentrant}{\\reentrant} and \l{nonreentrant}{\\nonreentrant}. \row \o \bold \\reentrant \target reentrant \o \bold {The \\reentrant command indicates that the associated class or function can be called simultaneously by multiple threads, provided that each invocation of the functions reference unique data.} The command must stand on its own line. For an example, see the \l {General Description} section. See also \l{nonreentrant}{\\nonreentrant} and \l{threadsafe}{\\threadsafe}. \row \o \bold \\nonreentrant \target nonreentrant \o \bold {The \\nonreentrant command indicates that the associated class or function cannot be called by multiple threads.} The command must stand on its own line. For an example, see the \l {General Description} section. See also \l{reentrant}{\\reentrant} and \l{threadsafe}{\\threadsafe}. \endtable */ /*! \page 18-qdoc-commands-relating.html \previouspage Thread Support Commands \contentspage QDoc Manual - Table of Contents \nextpage Grouping Commands \title Relating Commands The relation commands discribe how the documented object relates to its context: Whether it is an overloaded function, a reimplemented function or a global function related to a specified class or header file. \section1 Alphabetical List \l {18-qdoc-commands-relating.html#overload}{\\overload}, \l {18-qdoc-commands-relating.html#reimp}{\\reimp}, \l {18-qdoc-commands-relating.html#relates}{\\relates}, \section1 Command Descriptions \table \header \o Command \o Description \row \o \bold \\overload \target overload \o \bold {The \\overload command indicates that the function is a secondary overload of its name.} The command must stand on its own line. For any overloaded function (except constructors), QDoc expects one primary version of the function and all the the overloads marked with the \bold{\\overload command}. The primary version should be fully documented. Each overload can have whatever extra documentation you want to add for just that overload. From Qt 4.5, you can include the function name plus '()' as a parameter to the \bold{\\overload} command, which will include a standard \i{This function overloads...} line of text with a link to the documentation for the primary version of the function. For example: \code / *! \overload addAction() This convenience function creates a new action with an \a icon and some \a text. The function adds the newly created action to the menu's list of actions, and returns it. \sa QWidget::addAction() * / QAction *QMenu::addAction(const QIcon &icon, const QString &text) { QAction *ret = new QAction(icon, text, this); addAction(ret); return ret; } \endcode will be rendered as \quotation \raw HTML

QAction * QMenu::addAction ( const QIcon & icon, const QString & text )

\endraw This function overloads \l {http://qt.nokia.com/doc/4.0/qwidget.html#addAction}{addAction()} This convenience function creates a new action with an \i icon and some \i text. The function adds the newly created action to the menu's list of actions, and returns it. See also \l {http://qt.nokia.com/doc/4.0/qwidget.html#addAction} {QWidget::addAction}(). \endquotation If you don't include the function name with the \bold{\\overlaod} command, then instead of the "This function overloads..." line with the link to the documentation for the primary version, you get the old standard line: \quotation This is an overloaded member function, provided for convenience. \endquotation. \row \o \bold \\reimp \target reimp \o \bold {The \\reimp command indicates that the referenced function is a reimplementation of a virtual function, where the reimplementation has no effect on the interface.} The command must stand on its own line. QDoc will omit the reimplemented function from the class reference. For example: \code / *! \reimp * / void QToolButton::nextCheckState() { Q_D(QToolButton); if (!d->defaultAction) QAbstractButton::nextCheckState(); else d->defaultAction->trigger(); } \endcode will not be rendered at all; only a link to the inherited QAbstractButton::nextCheckState() will appear in the documentation. \row \o \bold \\relates \target relates \o \bold {The \\relates command attaches the documentation of a global function to that of a related class or header file.} The command's argument is a class name, an the command (and its argument) must stand on its own line. \code / *! \relates QChar Reads a char from the stream \a in into char \a chr. \sa {Format of the QDataStream operators} * / QDataStream &operator>>(QDataStream &in, QChar &chr) { quint16 u; in >> u; chr.unicode() = ushort(u); return in; } \endcode will be rendered with the QChar documentation. \endtable */ /*! \page 19-qdoc-commands-grouping.html \previouspage Relating Commands \contentspage QDoc Manual - Table of Contents \nextpage Title Commands \title Grouping Commands The grouping commands relate classes to defined groups and modules. The groups are used when generating lists of related classes in the documentation, while the modules are elements of Qt's structure. \section1 Alphabetical List \l {19-qdoc-commands-grouping.html#ingroup}{\\ingroup}, \l {19-qdoc-commands-grouping.html#inmodule}{\\inmodule}, \l {19-qdoc-commands-grouping.html#mainclass}{\\mainclass}, \section1 Command Descriptions \table \header \o Command \o Description \row \o \bold \\mainclass \target mainclass \o \bold {The \\mainclass command relates the documented class to a group called mainclasses.} The command must stand on its own line. For example: \code / *! \class QWidget qwidget.h \brief The QWidget class is the base class of all user interface objects. \mainclass ... * / \endcode will ensure that the QWidget class is included in the \c mainclasses group, which means, for example, that the class will appear on the list created by calling the \l {generatelist}{\\generatelist} command with the \c mainclasses argument: \l http://qt.nokia.com/doc/4.0/mainclasses.html See also \l {generatelist}{\\generatelist}. \row \o \bold \\ingroup \target ingroup \o \bold {The \\ingroup command indicates that the given overview or documented class belongs to a certain group of related docmentation.} A class or overview may belong to many groups. The \\ingroup command's argument is a group name, but note that the command considers the rest of the line as part of its argument. Make sure that the group name is followed by a linebreak. For example: \code / *! \class QDir \brief The QDir class provides access to directory structures and their contents. \ingroup io ... * / \endcode will ensure that the QDir class is included in the \c io group, which means, for example, that QDir will appear on the list created by calling the \l {group}{\\group} command with the \c io argument. Note that to list overviews that are related to a given group, you must generate the list exlicitly by using the \l {generatelist}{\\generatelist} command with the \c related argument. See also \l {group}{\\group}. \row \o \bold \\inmodule \target inmodule \o \bold {The \\inmodule command relates the documented class to the module specified by the command's argument.} For the basic classes in Qt, a class's module is determined by its location, i.e. its directory. However, for extensions, like ActiveQt and Qt Designer, a class needs to be related to a module explicitly. The command's argument is a module name, but note that the command considers the rest of the line as part of its argument. Make sure that the module name is followed by a linebreak. For example: \code /*! \class QDesignerTaskMenuExtension \inmodule QtDesigner * / \endcode will ensure that the QDesignerTaskMenuExtension class is included in the \c QtDesigner module, which means, for example, that the class will appear on the list created by calling the \l {generatelist}{\\generatelist} command with the \c {{classesbymodule QtDesigner}} argument. See also \l {module}{\\module} and \l {generatelist}{\\generatelist}. \endtable */ /*! \page 20-qdoc-commands-title.html \previouspage Grouping Commands \contentspage QDoc Manual - Table of Contents \nextpage QDoc Configuration \title Title Commands In general a title command considers everything that follows it until the first line break as its argument. If the title needs to be spanned over several lines, make sure to end each line (except the last one) with a backslash. \section1 Alphabetical List \l {20-qdoc-commands-title.html#title}{\\title}, \l {20-qdoc-commands-title.html#subtitle}{\\subtitle} \section1 Command Descriptions \table \header \o Command \o Description \row \o \bold \\title \target title \o \bold {The \\title command sets the title for a documentation page, or allows you to override it.} For example: \code / *! \page signalandslots.html \title Signals and Slots Signals and slots are used for communication between objects. The signals and slots mechanism is a central feature of Qt and probably the part that differs most from the features provided by other frameworks. ... * / \endcode will be rendered as \quotation \raw HTML

Signal and Slots

\endraw Signals and slots are used for communication between objects. The signals and slots mechanism is a central feature of Qt and probably the part that differs most from the features provided by other frameworks. ... \endquotation See also \l {subtitle}{\\subtitle}. \row \o \bold \\subtitle \target subtitle \o \bold {The \\subtitle command sets a subtitle for a documentation page.} For example: \code / *! \page qtopiacore-overview.html \title Qtopia Core \subtitle Qt for Embedded Linux Qt/Embedded, the embedded Linux port of Qt, is a complete and self-contained C++ GUI and platform development tool for Linux-based embedded development. ... * / \endcode will be rendered as \quotation \raw HTML

Qtopia Core

Qt for Embedded Linux

\endraw Qt/Embedded, the embedded Linux port of Qt, is a complete and self-contained C++ GUI and platform development tool for Linux-based embedded development. ... \endquotation See also \l {title}{\\title}. \endtable */ /*! \page 21-0-qdoc-configuration.html \previouspage Title Commands \contentspage QDoc Manual - Table of Contents \nextpage General Variables \title QDoc Configuration \tableofcontents \list \o \l {Supporting Derived Projects} \o \l {QDoc Compatibility} \endlist When running QDoc to generate the documentation, you must specify a configuration file on the command line: \quotation \bold {/currentdirectory$ qdoc3 my-documentation.qdocconf} \endquotation \section1 General Description The configuration file is a list of entries of entries of the form \i {"variable = value"}. Using the configuration variables, you can define where QDoc should find the various source files, images and examples, where to put generated documentation etc. The configuration file can also contain directives like \c include. For an example, see the \l minimum.qdocconf file. In addition, you can use some particular configuration variables to make QDoc support derived projects, i.e make the projects, for example Qt Solutions, contain links to the online Qt documentation. These variables are documented in the \l {Supporting Derived projects} section. In this section you can also find out how to use these variables to support your derived projects. If some of the variable keys have the same values, they can be set at the same time. For example: \code {header, source}dirs = kernel \endcode is equivalent to \code headerdirs = kernel sourcedirs = kernel \endcode A variable's value can be set using either '=' or '+='. The difference is that '=' overrides any previously set value, while '+=' only adds the value to the previously set ones. In general, some of the variables accepts a list of strings as their value, while others only accept a single string. If you provide a variable of the latter type with several strings they will simply be concatenated. The quotes around the value string are optional. But applying them allows you to use special characters like '=' and ' \" ' within the string. For example: \code HTML.postheader = "Home" \endcode If an entry spans many lines, use a backslash at the end of every line but the last: \code sourcedirs = kernel \ tools \ widgets \endcode \section1 Configuration Variables \section2 Alphabetical List \l {22-qdoc-configuration-generalvariables.html#alias}{alias}, \l {23-qdoc-configuration-cppvariables.html#Cpp.ignoredirectives} {Cpp.ignoredirectives}, \l {23-qdoc-configuration-cppvariables.html#Cpp.ignoretoken} {Cpp.ignoretokens}, \l {22-qdoc-configuration-generalvariables.html#definesvariable}{defines}, \l {22-qdoc-configuration-generalvariables.html#edition}{edition}, \l {22-qdoc-configuration-generalvariables.html#exampledirs}{exampledirs}, \l {22-qdoc-configuration-generalvariables.html#examples}{examples}, \l {22-qdoc-configuration-generalvariables.html#examples.fileextensions} {examples.fileextensions}, \l {22-qdoc-configuration-generalvariables.html#extraimages}{extraimages}, \l {22-qdoc-configuration-generalvariables.html#falsehoods}{falsehoods}, \l {22-qdoc-configuration-generalvariables.html#headerdirs}{headerdirs}, \l {22-qdoc-configuration-generalvariables.html#headers}{headers}, \l {22-qdoc-configuration-generalvariables.html#headers.fileextensions} {headers.fileextensions}, \l {24-qdoc-configuration-htmlvariables.html#HTML.footer}{HTML.footer}, \l {24-qdoc-configuration-htmlvariables.html#HTML.postheader} {HTML.postheader}, \l {24-qdoc-configuration-htmlvariables.html#HTML.style}{HTML.style}, \l {22-qdoc-configuration-generalvariables.html#imagedirs}{imagedirs}, \l {22-qdoc-configuration-generalvariables.html#images}{images}, \l {22-qdoc-configuration-generalvariables.html#images.fileextensions} {images.fileextensions}, \l {22-qdoc-configuration-generalvariables.html#language}{language}, \l {22-qdoc-configuration-generalvariables.html#macro}{macro}, \l {22-qdoc-configuration-generalvariables.html#outputdir}{outputdir}, \l {22-qdoc-configuration-generalvariables.html#outputformats} {outputformats}, \l {22-qdoc-configuration-generalvariables.html#slow}{slow}, \l {22-qdoc-configuration-generalvariables.html#sourcedirs}{sourcedirs}, \l {22-qdoc-configuration-generalvariables.html#sources}{sources}, \l {22-qdoc-configuration-generalvariables.html#sources.fileextensions} {sources.fileextensions}, \l {22-qdoc-configuration-generalvariables.html#spurious}{spurious}, \l {22-qdoc-configuration-generalvariables.html#tabsize}{tabsize}, \l {22-qdoc-configuration-generalvariables.html#version}{version}, \l {22-qdoc-configuration-generalvariables.html#versionsym}{versionsym} \section2 Categories \list \o \l {General Variables} \o \l {C++ Specific Variables} \o \l {HTML Specific Variables} \endlist \section1 Configuration File Examples \list \o A minimum configuration file: \l minimum.qdocconf \o The Qt configuration file: \l qt.qdocconf \endlist */ /*! \page 21-1-minimum-qdocconf.html \previouspage QDoc Configuration \contentspage QDoc Manual - Table of Contents \title minimum.qdocconf \quotefile examples/minimum.qdocconf */ /*! \page 21-2-qt-qdocconf.html \previouspage QDoc Configuration \contentspage QDoc Manual - Table of Contents \title qt.qdocconf \quotefile files/qt.qdocconf */ /*! \page 22-qdoc-configuration-generalvariables.html \previouspage QDoc Configuration \contentspage QDoc Manual - Table of Contents \nextpage Creating Help Project Files \title General Variables With the general QDoc configuration variables, you can define where QDoc will find the various source files it needs to generate the documentation, as well as the directory to put the generated documentation. You can also do some minor manipulation of QDoc itself, controlling its output and processing behavior. \section1 Alphabetical List \l {22-qdoc-configuration-generalvariables.html#alias}{alias}, \l {22-qdoc-configuration-generalvariables.html#codeindent}{codeindent}, \l {22-qdoc-configuration-generalvariables.html#definesvariable}{defines}, \l {22-qdoc-configuration-generalvariables.html#edition}{edition}, \l {22-qdoc-configuration-generalvariables.html#exampledirs}{exampledirs}, \l {22-qdoc-configuration-generalvariables.html#examples}{examples}, \l {22-qdoc-configuration-generalvariables.html#examples.fileextensions} {examples.fileextensions}, \l {22-qdoc-configuration-generalvariables.html#extraimages}{extraimages}, \l {22-qdoc-configuration-generalvariables.html#falsehoods}{falsehoods}, \l {22-qdoc-configuration-generalvariables.html#generateindex}{generateindex}, \l {22-qdoc-configuration-generalvariables.html#headerdirs}{headerdirs}, \l {22-qdoc-configuration-generalvariables.html#headers}{headers}, \l {22-qdoc-configuration-generalvariables.html#headers.fileextensions} {headers.fileextensions}, \l {22-qdoc-configuration-generalvariables.html#imagedirs}{imagedirs}, \l {22-qdoc-configuration-generalvariables.html#images}{images}, \l {22-qdoc-configuration-generalvariables.html#images.fileextensions} {images.fileextensions}, \l {22-qdoc-configuration-generalvariables.html#language}{language}, \l {22-qdoc-configuration-generalvariables.html#macro}{macro}, \l {22-qdoc-configuration-generalvariables.html#outputdir}{outputdir}, \l {22-qdoc-configuration-generalvariables.html#outputformats} {outputformats}, \l {22-qdoc-configuration-generalvariables.html#slow}{slow}, \l {22-qdoc-configuration-generalvariables.html#sourcedirs}{sourcedirs}, \l {22-qdoc-configuration-generalvariables.html#sources}{sources}, \l {22-qdoc-configuration-generalvariables.html#sources.fileextensions} {sources.fileextensions}, \l {22-qdoc-configuration-generalvariables.html#spurious}{spurious}, \l {22-qdoc-configuration-generalvariables.html#tabsize}{tabsize}, \l {22-qdoc-configuration-generalvariables.html#tagfile}{tagfile}, \l {22-qdoc-configuration-generalvariables.html#version}{version}, \l {22-qdoc-configuration-generalvariables.html#versionsym}{versionsym} \section1 Variable Descriptions \table \header \o Variable \o Description \row \o \bold alias \target alias \o \bold {The \c alias variable renames a QDoc command.} The general syntax is \tt {alias.\i{original-command-name} = \i temporary-command-name}. For example: \code alias.i = e \endcode renames the built-in command \\i (italics) to \\e. The \c alias variable is often used for compatibility reasons; for more information see the \l {QDoc Compatibility}{compatibility section}. See also \l macro. \row \o \bold codeindent \target codeindent \o \bold {The \c codeindent variable specifies the level of indentation that QDoc uses when writing code snippets.} QDoc originally used a hard-coded value of four spaces for code indentation to ensure that code snippets could be easily distinguished from surrounding text. Since we can use \l{HTML Specific Variables#HTML.stylesheets}{stylesheets} to adjust the appearance of certain types of HTML elements, this level of indentation is not always required. \row \o \bold defines \target definesvariable \o \bold {The \c defines variable specifies the C++ preprocessor symbols that QDoc will recognize and respond to.} When a preprocessor symbol is specified using the \c defines variable, you can also use the \l {if}{\\if} command to enclose documentation that only will be included if the preprocessor symbol is defined. The values of the variable are regular expressions (see QRegExp for details). By default, no symbol is defined, meaning that code protected with #ifdef...#endif will be ignored. For example: \code defines = Q_QDOC \ QT_.*_SUPPORT \ QT_.*_LIB \ QT_COMPAT \ QT3_SUPPORT \ Q_WS_.* \ Q_OS_.* \ Q_BYTE_ORDER \ __cplusplus \endcode ensures that QDoc will process the code that requires these symbols to be defined. For example: \code #ifdef Q_WS_WIN HDC getDC() const; void releaseDC(HDC) const; #endif \endcode Since the Q_WS_.* regular expression (specified using the \c defines variable) matches Q_WS_WIN, QDoc will process the code within #ifdef and #endif in our example. You can also define preprocessor symbols manually on the command line using the -D option. For example: \code currentdirectory$ qdoc3 -Dconsoleedition qt.qdocconf \endcode In this case the -D option ensures that the \c consoleedition preprocessor symbol is defined when QDoc processes the source files defined in the qt.qdocconf file. See also \l falsehoods and \l {if}{\\if}. \row \o \bold edition \target edition \o \bold {The \c edition variable specifies which modules are included in each edition of a package, and provides QDoc with information to provide class lists for each edition.} This feature is mostly used when providing documentation for Qt packages. The \c edition variable is always used with a particular edition name to define the modules for that edition: \code edition.Console = QtCore QtNetwork QtSql QtXml edition.Desktop = QtCore QtGui QtNetwork QtOpenGL QtSql QtXml \ QtDesigner QtAssistant Qt3Support QAxContainer \ QAxServer edition.DesktopLight = QtCore QtGui Qt3SupportLight \endcode In the above examples, the \c Console edition only includes the contents of four modules. Only the classes from these modules will be used when the \l{Miscellaneous Commands#generatelist}{generatelist} command is used to generate a list of classes for this edition: \code \generatelist{classesbyedition Console} \endcode \row \o \bold exampledirs \target exampledirs \o \bold {The \c exampledirs variable specifies the directories containing the source code of the example files.} The \l {examples}{\c examples} and \c exampledirs variables are used by the \l {quotefromfile}{\\quotefromfile}, \l {quotefile}{\\quotefile} and \l {example}{\\example} commands. If both the \l {examples}{\c examples} and \c exampledirs variables are defined, QDoc will search in both, first in \l {examples}{\c examples} then in \c exampledirs. QDoc will search through the directories in the specified order, and accept the first matching file it finds. It will only search in the specified directories, \i not in subdirectories. For example: \code exampledirs = $QTDIR/doc/src \ $QTDIR/examples \ $QTDIR \ $QTDIR/qmake/examples examples = $QTDIR/examples/widgets/analogclock/analogclock.cpp \endcode When processing \code \quotefromfile widgets/calculator/calculator.cpp \endcode QDoc will then see if there exists a file called \c calculator.cpp listed as a value in the \l {examples}{\c examples} variable. If it doesn't, it will search in the \c exampledirs variable, and first see if there exists a file called \code $QTDIR/doc/src/widgets/calculator/calculator.cpp \endcode If it doesn't, QDoc will continue looking for a file called \code $QTDIR/examples/widgets/calculator/calculator.cpp \endcode and so forth. See also \l examples. \row \o \bold examples \target examples \o \bold {The \c examples variable allows you to specify individual example files in addition to those located in the directories specified by the \l {exampledirs}{\c exampledirs} variable.} The \c examples and \l {exampledirs}{\c exampledirs} variables are used by the \l {quotefromfile}{\\quotefromfile}, \l {quotefile}{\\quotefile} and \l {example}{\\example} commands. If both the \c examples and \l {exampledirs}{\c exampledirs} variables are defined, QDoc will search in both, first in \c examples then in \l {exampledirs}{\c exampledirs}. QDoc will search through the values listed for the \c examples variable, in the specified order, and accept the first one it finds. For an extensive example, see the \l {exampledirs}{\c exampledirs} command. But note that if you know the file is listed in the \c examples variable, you don't need to specify its path: \code \quotefromfile calculator.cpp \endcode See also \l exampledirs. \row \o \bold examples.fileextensions \target examples.fileextensions \o \bold {The \c examples.fileextensions variable specifies the file extensions that qdoc will look for when collecting example files for display in the documentation.} The default extensions are *.cpp, *.h, *.js, *.xq, *.svg, *.xml and *.ui. However, if The extensions are given as standard wildcard expressions. You can add a file extension to the filter using '+='. For example: \code examples.fileextensions += *.qrc \endcode See also \l{headers.fileextensions}. \row \o \bold extraimages \target extraimages \o \bold {The \c extraimages variable tells QDoc to incorporate specific images in the generated documentation.} QDoc will not recognize images used within HTML (or any other markup language). If we want the images to be copied from the directories specified by \l {imagedirs}{\c imagedirs} (the images in question must be located in these directories) to the output directory, we must specify the images using the \c extraimages variable. The general syntax is \tt {extraimages.\i{format} = \i image}. The file extension is optional. For example, in \l qt.qdocconf we use a couple of images within the HTML.postheader variable which value is pure HTML. For that reason, these images are specified using the \c extraimages variable: \code extraimages.HTML = qt-logo \endcode See also \l images and \l imagedirs. \row \o \bold falsehoods \target falsehoods \o \bold {The \c falsehoods variable defines the truth value of specified preprocessor symbols as false.} If this variable is not set for a preprocessor symbol, QDoc assumes its truth value is true. The exception is '0', which value always is false. QDoc will recognize, and is able to evaluate, the following preprocessor syntax: \code #ifdef NOTYET ... #endif #if defined (NOTYET) ... #end if \endcode However, faced with unknown syntax like \code #if NOTYET ... #endif \endcode QDoc will evaluate it as true by default, \i unless the preprocessor symbol is specified within the \c falsehoods variable entry: \code falsehoods = NOTYET \endcode See also \l defines. \row \o \bold generateindex \target generateindex \o \bold{The \c generateindex variable contains a boolean value that specifies whether to generate an index file when HTML documentation is generated.} By default, an index file is always generated with HTML documentation, so this variable is typically only used when disabling this feature (by setting the value to \c false) or when enabling index generation for the WebXML output (by setting the value to \c true). \row \o \bold headerdirs \target headerdirs \o \bold {The \c headerdirs variable specifies the directories containing the header files associated with the \c .cpp source files used in the documentation.} For example: \code headerdirs = $QTDIR/src \ $QTDIR/extensions/activeqt \ $QTDIR/extensions/motif \ $QTDIR/tools/designer/src/lib/extension \ $QTDIR/tools/designer/src/lib/sdk \ $QTDIR/tools/designer/src/lib/uilib \endcode When executed, the first QDoc will do is to read through the headers specified in the \l {headers}{\c headers} variable, and the ones located in the directories specified in the \c headerdir variable (including all subdirectories), building an internal structure of the classes and their functions. Then it will read through the sources specified in the \l {sources}{\c sources}, and the ones located in the directories specified in the \l {sourcedirs}{\c sourcedirs} varible (including all subdirectories), merging the documentation with the structure it retrieved from the header files. If both the \c headers and \c headerdirs variables are defined, QDoc will read through both, first \l {headers}{\c headers} then \c headerdirs. In the specified directories, QDoc will only read the files with the fileextensions specified in the \l {headers.fileextensions}{\c headers.fileextensions} variable. The default extensions are *.ch, *.h, *.h++, *.hh, *.hpp and *.hxx". The files specified by \l {headers}{\c headers} will be read independent of their fileextensions. See also \l headers and \l headers.fileextensions. \row \o \bold headers \target headers \o \bold {The \c headers variable allows you to specify individual header files in addition to those located in the directories specified by the \l {headerdirs}{\c headerdirs} variable.} For example: \code headers = $QTDIR/src/gui/widgets/qlineedit.h \ $QTDIR/src/gui/widgets/qpushbutton.h \endcode When processing the \c headers variable, QDoc behaves in the same way as it does when processing the \l {headerdirs}{\c headerdirs} variable. For more information, see the \l {headerdirs}{\c headerdirs} variable. See also \l headerdirs. \row \o \bold headers.fileextensions \target headers.fileextensions \o \bold {The \c headers.fileextensions variable specify the extension used by the headers.} When processing the header files specified in the \l {headerdirs}{\c headerdirs} variable, QDoc will only read the files with the fileextensions specified in the \c headers.fileextensions variable. In this way QDoc avoid spending time reading irrelevant files. The default extensions are *.ch, *.h, *.h++, *.hh, *.hpp and *.hxx. The extensions are given as standard wildcard expressions. You can add a file extension to the filter using '+='. For example: \code header.fileextensions += *.H \endcode \warning The above assignment may not work as described. See also \l headerdirs. \row \o \bold imagedirs \target imagedirs \o \bold {The \c imagedirs variable specifies the directories containing the images used in the documentation.} The \l {images}{\c images} and \c imagedirs variables are used by the \l {image}{\\image} and \l {inlineimage}{\\inlineimage} commands. If both the \l {images}{\c images} and \c imagedirs variables are defined, QDoc will search in both, first in \l {images}{\c images} then in \c imagedirs. QDoc will search through the directories in the specified order, and accept the first matching file it finds. It will only search in the specified directories, \i not in subdirectories. For example: \code imagedirs = $QTDIR/doc/src/images \ $QTDIR/examples images = $QTDIR/doc/src/images/calculator-example.png \endcode When processing \code \image calculator-example.png \endcode QDoc will then see if there exists a file called calculator-example.png listed as a value in the \c images variable. If it doesn't, it will search in the \c imagedirs variable, and first see if there exists a file called \code $QTDIR/doc/src/images/calculator-example.png \endcode If it doesn't, QDoc will look for a file called \code $QTDIR/examples/calculator-example.png \endcode You can filter the images in an image directory using the \l {images.fileextensions}{\c images.fileextensions} variable. The general idea behind the \l {images.fileextensions}{\c images.fileextensions} variable is to enable different image format for different output format. \warning The \l {images.fileextensions}{\c images.fileextensions} variable's functionality is preliminay since QDoc at this point only support HTML. See also \l images and \l images.fileextensions. \row \o \bold images \target images \o \bold {The \c images variable allows you to specify individual image files in addition to those located in the directories specified by the \l {imagedirs}{\c imagedirs} variable.} For example: \code images = $QTDIR/doc/src/images/calculator-example.png \endcode When processing the \c images variable, QDoc behaves in the same way as it does when processing the \l {imagedirs}{\c imagedirs} variable. For more information, see the \l {imagedirs}{\c imagedirs} variable. See also \l imagedirs and \l images.fileextensions. \row \o \bold images.fileextensions \target images.fileextensions \o \bold {The images.fileextensions variable filters the files within an image directory.} The variable's values (the extensions) are given as standard wildcard expressions. The general syntax is: \tt {images.fileextensions.\i{format} = *.\i{extension}}. The idea is to enable different image format for different output format. For example: \code images.fileextensions.HTML = *.png images.fileextensions.LOUT = *.eps \endcode Then, when processing the \l {image}{\\image} and \l {inlineimage}{\\inlineimage} commands, QDoc will only search for files with extensions specified in the output format's associated image extension variable. \warning This is preliminary functionality since QDoc at this point only support HTML. The default extensions for HTML are *.png, *.jpg, *.jpeg and *.gif. You can add a file extension to the filter using '+='. For example: \code images.fileextensions.HTML += *.eps \endcode See also \l imagedirs and \l images. \row \o \bold language \target language \o \bold {The \c language variable specifies the language of the source code that is used in the documentation.} Currently, C++ is the only language that QDoc understands. It is also the default language, and doesn't really need to be specified. But for example in \l qt.qdocconf: \code language = Cpp \endcode identifies the language of the Qt source code as C++. \row \o \bold macro \target macro \o \bold {The \c macro variable can be used to create your own QDoc commands.} The general syntax is \tt {macro.\i{command} = "\i{definition}}". The definition can be described using QDoc syntax. In addition it is possible to provide an HTML definition by appending .HTML to the variable. For example in \l qt.qdocconf: \code macro.gui = "\\bold" macro.raisedaster.HTML = "*" \endcode makes sure that the \\gui command renders its argument using a bold font, and that \\raisedaster renders a '*'. \row \o \bold outputdir \target outputdir \o \bold {The \c outputdir variable specifies the directory where QDoc will put the generated documentation.} In qt.qdocconf: \code outputdir = $QTDIR/doc/html \endcode locates the generated Qt reference documentation in $QTDIR/doc/html. For example, the documentation of the QWidget class is located in \code $QTDIR/doc/html/qwidget.html \endcode The associated images will be put in an \c images subdirectory. \warning When running QDoc multiple times using the same output directory, all files from the previous run will be lost. \row \o \bold outputformats \target outputformats \o \bold {The \c outputformats variable specifies the format of the generated documentation.} Currently, QDoc only supports the HTML format. It is also the default format, and doesn't need to be specified. \row \o \bold qhp \target qhp \o \bold{The \c qhp variable is used to define the information to be written out to Qt Help Project (\c{qhp}) files.} See the \l{Creating Help Project Files} chapter for information about this process. \row \o \bold slow \target slow \o \bold {The \c slow variable specifies whether QDoc should do time-consuming processing, such as syntax highlighting.} By default, this setting is false. Example: \code slow = true \endcode Another way to turn on "slowness" is to invoke QDoc with the \c -slow command-line option. \row \o \bold sourcedirs \target sourcedirs \o \bold {The \c sourcedirs variable specifies the directories containing the \c .cpp or \c .qdoc files used in the documentation.} For example in \l qt.qdocconf \code sourcedirs = $QTDIR/src \ $QTDIR/doc/src \ $QTDIR/extensions/activeqt \ $QTDIR/extensions/motif \ $QTDIR/tools/designer/src/lib/extension \ $QTDIR/tools/designer/src/lib/sdk \ $QTDIR/tools/designer/src/lib/uilib \endcode When executed, the first QDoc will do is to read through the headers specified in the \l {header}{\c header} variable, and the ones located in the directories specified in the \c headerdir variable (including all subdirectories), building an internal structure of the classes and their functions. Then it will read through the sources specified in the \l {sources}{\c sources}, and the ones located in the directories specified in the \l {sourcedirs}{\c sourcedirs} varible (including all subdirectories), merging the documentation with the structure it retrieved from the header files. If both the \c sources and \c sourcedirs variables are defined, QDoc will read through both, first \l {sources}{\c sources} then \c sourcedirs. In the specified directories, QDoc will only read the files with the fileextensions specified in the \l {sources.fileextensions}{\c sources.fileextensions} variable. The default extensions are *.c++, *.cc, *.cpp and *.cxx. The files specified by \l {sources}{\c sources} will be read independent of their fileextensions. See also \l sources and \l sources.fileextensions. \row \o \bold sources \target sources \o \bold {The \c sources variable allows you to specify individual source files in addition to those located in the directories specified by the \l {sourcedir}{\c sourcedir} variable.} For example: \code sources = $QTDIR/src/gui/widgets/qlineedit.cpp \ $QTDIR/src/gui/widgets/qpushbutton.cpp \endcode When processing the \c sources variable, QDoc behaves in the same way as it does when processing the \l {sourcedirs}{\c sourcedirs} variable. For more information, see the \l {sourcedirs}{\c sourcedirs} variable. See also \l sourcedirs. \row \o \bold sources.fileextensions \target sources.fileextensions \o \bold {The \c sources.fileextensions variable filters the files within a source directory.} When processing the source files specified in the \l {sourcedirs}{\c sourcedirs} variable, QDoc will only read the files with the fileextensions specified in the \c sources.fileextensions variable. In this way QDoc avoid spending time reading irrelevant files. The default extensions are *.c++, *.cc, *.cpp and *.cxx. The extensions are given as standard wildcard expressions. You can add a file extension to the filter using '+='. For example: \code sources.fileextensions += *.CC \endcode \warning The above assignment may not work as described. See also \l sourcedirs and \l sources. \row \o \bold spurious \target spurious \o \bold {The \c spurious variable excludes specified QDoc warnings from the output.} The warnings are specified using standard wildcard expressions. For example: \code spurious = "Cannot find .*" \ "Missing .*" \endcode makes sure that warnings matching either of these expressions, will not be part of the output when running QDoc. For example would the following warning be omitted from the output: \code qt-4.0/src/opengl/qgl_mac.cpp:156: Missing parameter name \endcode \row \o \bold tabsize \target tabsize \o \bold {The \c tabsize variable defines the size of a tab character.} For example: \code tabsize = 4 \endcode will give the tab character the size of 4 spaces. The default value of the variable is 8, and doesn't need to be specified. \row \o \bold tagfile \target tagfile \o \bold{The \c tagfile variable specifies the Doxygen tag file to be written when HTML is generated.} \row \o \bold version \target version \o \bold {The \c version variable specifies the version number of the documented software.} For example: \code version = 4.0.1 \endcode When a version number is specified (using the \tt{\l version} or \tt {\l versionsym} variables in a \c .qdocconf file), it is accessible through the corresponding \\version command for use in the documentation. \warning The \\version command's functionality is not fully implemented; currently it only works within raw HTML code. See also \l versionsym. \row \o \bold versionsym \target versionsym \o \bold {The \c versionsym variable specifies a C++ preprocessor symbol that defines the version number of the documented software.} For example in \l qt.qdocconf: \code versionsym = QT_VERSION_STR \endcode QT_VERSION_STR is defined in qglobal.h as follows \code #define QT_VERSION_STR "4.0.1" \endcode When a version number is specified (using the \tt{\l version} or \tt {\l versionsym} variables in a \c .qdocconf file), it is accessible through the corresponding \\version command for use in the documentation. \warning The \\version command's functionality is not fully implemented; currently it only works within raw HTML code. See also \l {version}{\\version}. \endtable */ /*! \page 22-creating-help-project-files.html \previouspage General Variables \contentspage QDoc Manual - Table of Contents \nextpage C++ Specific Variables \title Creating Help Project Files \section1 Overview Starting with Qt 4.4, Qt Assistant uses a different system for managing Qt documentation that requires QDoc to generate inventories of files in a format that is similar to the old style DCF format, but with additional features. Instead of hard-coding information about the documentation sets for Qt, QDoc allows configuration variables to be used to specify which pages are to be used in each documentation set it generates. These are specified as subvariables of the \c qch variable with each set declared using a unique identifier as a subvariable. For example, the configuration file for the Qt documentation defines a \c Qt documentation set by specifying information about the set as subvariables with the \c{qhp.Qt} prefix: \code qhp.Qt.file = qt.qhp qhp.Qt.namespace = com.trolltech.qt.440 qhp.Qt.virtualFolder = qdoc qhp.Qt.indexTitle = Qt Reference Documentation qhp.Qt.indexRoot = qhp.Qt.extraFiles = classic.css images/qt-logo.png qhp.Qt.filterAttributes = qt 4.4.0 qtrefdoc qhp.Qt.customFilters.Qt.name = Qt 4.4.0 qhp.Qt.customFilters.Qt.filterAttributes = qt 4.4.0 qhp.Qt.subprojects = classes overviews examples qhp.Qt.subprojects.classes.title = Classes qhp.Qt.subprojects.classes.indexTitle = Qt's Classes qhp.Qt.subprojects.classes.selectors = class qhp.Qt.subprojects.overviews.title = Overviews qhp.Qt.subprojects.overviews.indexTitle = All Overviews and HOWTOs qhp.Qt.subprojects.overviews.selectors = fake:page,group,module qhp.Qt.subprojects.examples.title = Tutorials and Examples qhp.Qt.subprojects.examples.indexTitle = Qt Examples qhp.Qt.subprojects.examples.selectors = fake:example \endcode */ /*! \page 23-qdoc-configuration-cppvariables.html \previouspage Creating Help Project Files \contentspage QDoc Manual - Table of Contents \nextpage HTML Specific Variables \title C++ Specific Variables The C++ specific configuration variables are provided to avoid erroneous documentation due to non-standard C++ constructs. \section1 Alphabetical List \l {23-qdoc-configuration-cppvariables.html#Cpp.ignoredirectives} {Cpp.ignoredirectives}, \l {23-qdoc-configuration-cppvariables.html#Cpp.ignoretoken} {Cpp.ignoretokens} \section1 Variable Descriptions \table \header \o Variable \o Description \row \o \bold Cpp.ignoredirectives \target Cpp.ignoredirectives \o \bold {The \c Cpp.ignoredirectives variable makes QDoc ignore the specified non-standard constructs, within C++ source code.} If not specified by the \tt {\l Cpp.ignoretokens} or \tt {\l Cpp.ignoredirectives} variables, non-standard constructs (typically macros) can result in erroneous documentation. In \l qt.qdocconf: \code Cpp.ignoredirectives = Q_DECLARE_INTERFACE \ Q_DECLARE_OPERATORS_FOR_FLAGS \ Q_DECLARE_PRIVATE \ Q_DECLARE_PUBLIC \ Q_DISABLE_COPY \ Q_DUMMY_COMPARISON_OPERATOR \ Q_ENUMS \ Q_FLAGS \ Q_INTERFACES \ __attribute__ \endcode makes sure that when processing the code below, for example, QDoc will simply ignore the 'Q_ENUMS' and 'Q_FLAGS' expressions: \code class Q_CORE_EXPORT Qt { Q_OBJECT Q_ENUMS(Orientation TextFormat BackgroundMode DateFormat ScrollBarPolicy FocusPolicy ContextMenuPolicy CaseSensitivity LayoutDirection ArrowType) Q_ENUMS(ToolButtonStyle) Q_FLAGS(Alignment) Q_FLAGS(Orientations) Q_FLAGS(DockWidgetAreas) public: ... }; \endcode The Q_OBJECT macro, however, is an exception: QDoc recognizes this particular non-standard construct, so there is no need specifying it using the \tt {\l Cpp.ignoredirectives} variable. Regarding the Q_CORE_EXPORT macro; see the documentation of the \tt {\l Cpp.ignoretokens} variable. See also \l Cpp.ignoretokens. \row \o \bold Cpp.ignoretokens \target Cpp.ignoretokens \o \bold {The \c Cpp.ignoretokens variable makes QDoc ignore the specified non-standard constructs, within C++ source code.} If not specified by the \tt {\l Cpp.ignoretokens} or \tt {\l Cpp.ignoredirectives} variables, non-standard constructs (typically macros) can result in erroneous documentation. In \l qt.qdocconf: \code Cpp.ignoretokens = QAXFACTORY_EXPORT \ QM_EXPORT_CANVAS \ ... Q_COMPAT_EXPORT \ Q_CORE_EXPORT \ Q_EXPLICIT \ Q_EXPORT \ ... Q_TYPENAME \ Q_XML_EXPORT \endcode makes sure that when processing the code below, for example, QDoc will simply ignore the 'Q_CORE_EXPORT' expression: \code class Q_CORE_EXPORT Qt { Q_OBJECT Q_ENUMS(Orientation TextFormat BackgroundMode DateFormat ScrollBarPolicy FocusPolicy ContextMenuPolicy CaseSensitivity LayoutDirection ArrowType) Q_ENUMS(ToolButtonStyle) Q_FLAGS(Alignment) Q_FLAGS(Orientations) Q_FLAGS(DockWidgetAreas) public: ... }; \endcode Regarding the Q_OBJECT, Q_ENUMS and Q_FLAGS macros; see the documentation of the \tt {\l Cpp.ignoredirectives} variable. See also \l Cpp.ignoredirectives. \endtable */ /*! \page 24-qdoc-configuration-htmlvariables.html \previouspage C++ Specific Variables \contentspage QDoc Manual - Table of Contents \nextpage Supporting Derived Projects \title HTML Specific Variables The HTML specific configuration variables define the generated documentation's style, or define the contents of the documentation's footer or postheader. The format of the variable values are raw HTML. \section1 Alphabetical List \l {24-qdoc-configuration-htmlvariables.html#HTML.footer}{HTML.footer}, \l {24-qdoc-configuration-htmlvariables.html#HTML.postheader} {HTML.postheader}, \l {24-qdoc-configuration-htmlvariables.html#HTML.style}{HTML.style}, \l {24-qdoc-configuration-htmlvariables.html#HTML.stylesheets}{HTML.stylesheets} \section1 Variable Descriptions \table \header \o Variable \o Description \row \o \bold HTML.footer \target HTML.footer \o \bold {The \c HTML.footer variable defines the content of the generated HTML documentation's footer.} The footer is rendered at the bottom of the generated documentation page. The variable's value is given as raw HTML code enclosed by quotation marks. Note that if the value spans several lines, each line needs to be enclosed by quotation marks. For example in \l qt.qdocconf: \code HTML.footer = "


\n" \ ... "
" \endcode The complete variable entry in \l qt.qdocconf provides the standard footer of the \l {http://qt.nokia.com/doc/4.0/index.html}{Qt Reference Documentation}. \row \o \bold HTML.postheader \target HTML.postheader \o \bold {The \c HTML.postheader variable defines the content of the generated HTML documentation's postheader.} The header is rendered at the top of the generated documentation page. The variable's value is given as raw HTML enclosed by quotation marks. Note that if the value spans several lines, each line needs to be enclosed by quotation marks. For example in \l qt.qdocconf: \code HTML.postheader = "" \ "" \ "
" \endcode The complete variable entry in \l qt.qdocconf provides the standard header of the \l {http://qt.nokia.com/doc/4.0/index.html}{Qt Reference Documentation}. \row \o \bold HTML.style \target HTML.style \o \bold {The HTML.style variable defines the style for the generated HTML documentation.} The variable's value is given as raw HTML enclosed by quotation marks. Note that if the value spans several lines, each line needs to be enclosed by quotation marks. For example in \l qt.qdocconf: \code HTML.style = "h3.fn,span.fn" \ "{ margin-left: 1cm; text-indent: -1cm; }\n" \ "a:link { color: #004faf; text-decoration: none }\n" \ "a:visited" \ "{ color: #672967; text-decoration: none }\n" \ "td.postheader { font-family: sans-serif }\n" \ "tr.address { font-family: sans-serif }\n" \ "body { background: #ffffff; color: black; }" \endcode provides the HTML style for the \l {http://qt.nokia.com/doc/4.0/index.html}{Qt Reference Documentation}. \row \o \bold HTML.stylesheets \target HTML.stylesheets \o \bold {The HTML.stylesheets variable defines a list of stylesheets to use for the generated HTML documentation.} Using separate stylesheets for the documentation makes it easier to customize and experiment with the style used once the contents has been generated. Typically, it is only necessary to define a single stylesheet for any set of documentation; for example: \code HTML.stylesheets = classic.css \endcode QDoc expects to find stylesheets in the directory containing the \l qt.qdocconf file, and it will copy those specified to the output directory alongside the HTML pages. \endtable */ /*! \page 25-qdoc-configuration-derivedprojects.html \previouspage HTML Specific Variables \contentspage QDoc Manual - Table of Contents \nextpage QDoc Compatibility \title Supporting Derived Projects \tableofcontents Some particular configuration variables allow you to use QDoc to support Qt-based projects; i.e to make projects, such as Qt Solutions, contain references to the online Qt documentation. This means that QDoc will be able to create links to the class reference documentation, without any explicit linking command. \section1 The Configuration Variables \section2 Alphabetical List \l{25-qdoc-configuration-derivedprojects.html#description}{description}, \l{25-qdoc-configuration-derivedprojects.html#indexes}{indexes}, \l{25-qdoc-configuration-derivedprojects.html#project}{project}, \l{25-qdoc-configuration-derivedprojects.html#url}{url} \section2 Variable Descriptions \table \header \o Variable \o Description \row \o \bold description \target description \o \bold {The description variable holds a short description of the associated project.} See also \l project. \row \o \bold indexes \target indexes \o \bold {The \c indexes variable lists the index files that will be used to generate references.} For example. to make a derived Qt project contain links to the Qt Reference documentation, you need to specify the associated index file: \code indexes = $QTDIR/doc/html/qt.index \endcode See also \l project and \l url. \row \o \bold project \target project \o \bold {The \c project variable provides a name for the project associated with the \c .qdocconf file.} The project's name is used to form a file name for the associated project's \i index file. For example: \code project = QtMotif \endcode This will cause an index file called \c qtmotif.index to be created. See also \l description and \l indexes. \row \o \bold url \target url \o \bold {The \c url variable holds the base URL for the reference documentation associated with the current project.} The URL is stored in the generated index file for the project. When we use the index on its own, QDoc will use this as the base URL when constructing links to classes, functions, and other things listed in the index. For example: \code project = Qt description = Qt Reference Documentation url = http://qt.nokia.com/doc/4.0 ... \endcode This makes sure that whenever \c qt.index is used to generate references to for example Qt classes, the base URL is \c http://qt.nokia.com/doc/4.0. See also \l indexes. \endtable \target howto \section1 How to Support Derived Projects This feature makes use of the comprehensive indexes generated by QDoc when it creates the Qt reference documentation. For example, \l qt.qdocconf (the configuration file for Qt) contains the following variable definitions: \code project = Qt description = Qt Reference Documentation url = http://qt.nokia.com/doc/4.0 ... \endcode The \l project variable name is used to form a file name for the index file; in this case the \c qt.index file is created. The \l url is stored in the index file. Later, when we use the index on its own, QDoc will use this as the base URL when constructing links to classes, functions, and other things listed in the index. In a mini-project, you can use an index file by defining an \l indexes configuration variable in your \c .qdocconf file. For example, you can create a \c qtmotif.qdocconf file to help you check the QtMotif documentation (which is part of Qt Solutions): \code include($QTDIR/tools/qdoc3/test/compat.qdocconf) project = QtMotif description = QtMotif Class Documentation url = http://www.trolltech.com/products/solutions/catalog/4/Migration/qtmotifextension indexes = $QTDIR/doc/html/qt.index outputdir = html headerdirs = src sourcedirs = src \ examples sources.fileextensions = "*.cpp *.qdoc *.doc" exampledirs = examples \endcode The code above requires that you run QDoc from the directory that contains this file. You need to include the compat.qdocconf file for compatibility reasons; this is further explained in the \l {QDoc Compatibility} section. \bold {To resolve the actual links to Qt classes, the mini-project's \c .qdocconf file needs to assign a value to the \l indexes variable; \c $QTDIR/doc/html/qt.index makes sure that you always use the updated index file for the Qt documentation.} The only disadvantages with this approach are the extra file that QDoc has to generate and the time it takes to do so. Reading the index back again later isn't instantaneous either, but it's quicker than processing all the Qt classes each time you need to write a new document. */ /*! \page 26-qdoc-commands-compatibility.html \previouspage Supporting Derived Projects \contentspage QDoc Manual - Table of Contents \nextpage QDoc Commands - Alphabetical List \title QDoc Compatibility \tableofcontents \section1 General Description \target reason QDoc is a tool that constantly evolves to suit our needs, for that reason there are some compatibility issues in the transition between old and new practices. To make the transition as smooth and rapid as possible, the general idea is to adopt the new commands and usage in new documentation. While waiting for the occurrences of the old practices to be eliminated from the old parts of the documentation, you can map the new commands and usage to the old ones using a compat.qdocconf file. A compat.qdocconf file is a separate \c .qdocconf file which you can include in your main configuration file. It typically contains the mapping between old and new commands using the \l alias and \l {22-qdoc-configuration-generalvariables.html#macro}{macro} configuration variables. \section1 Qt Compatibility In Qt's documentation there still exist occurrences of old commands, and the Qt \l {qt.qdocconf}{configuration file} needs to include the compat.qdocconf file tailored for Qt. For more detailed information about the commands creating compatibility issues, see the \l {Command Comments}{command comments}. \section2 Qt's current compat.qdocconf file \quotefile files/compat.qdocconf \section2 Command Comments \table \header \o New Command \o Old Command \o Description \row \o \\i \target i-versus-e \o \\e \o Earlier we used the \\i command to indicate a list or table item, and the \\e command for rendering in italic. Now we want the \\i command to render in italic discarding the \\e command name. \bold {We still need to use the \\e command to render in italic in new documentation for \l {reason}{compatibility reasons}}. \row \o \\include \target include-versus-input \o \\input \o The \\include command was previously used to quote the complete contents of a source file, now we want to use the command to include separate documentation. That is the functionality of the old \\input command which name we want to discard. \bold {We still need to use the \\input command to include plain text in new documentation for \l {reason}{compatibility reasons}}. \row \o \\quotefile \target quotefile-versus-include \o \\include \o Earlier, we have used the \\quotefile command to quote from file, i.e. quote parts from file, and the \\include command to quote the entire file. Since we now want \\include to include separate documentation, we change the use of \\quotefile to quote a complete source file. \bold {We still need to use the \\include command to quote the entire contents of a source file in new documentation for \l {reason}{compatibility reasons}}. \row \o \\quotefromfile \target quotefromfile-versus-quotefile \o \\quotefile \o Earlier, we have used the \\quotefile command to quote from file, i.e. quote parts from file. Since we now want that command to quote an entire file, we introduce the new \\quotefromfile command to quote from file. \bold {Use \l {quotefromfile}{\\quotefromfile} to quote parts from a source file in new documentation}. \row \o \\o \target o-versus-i \o \\i \o Earlier we used the \\i command to indicate list items and table items. Since we now want the \\i command to render in italic instead, we introduce the new \\o command for this purpose. \bold {Use \l {o}{\\o} to indicate list and table items in new documentation}. \row \o \\quotation \target quotation-versus-quote \o \\quote \o These commands are equivalent, and represent a simple name change. \bold {Use \l {quotation}{\\quotation} in new documentation}. \row \o \\image \target image-versus-img \o \\img \o These commands are equivalent, and represent a simple name change. \bold {Use \l {image}{\\image} in new documentation}. \endtable */ /*! \page 27-qdoc-commmands-alphabetical.html \previouspage QDoc Compatibility \contentspage QDoc Manual - Table of Contents \title QDoc Commands - Alphabetical List \list \o \l {04-qdoc-commands-textformatting.html#a}{\\a} \o \l {11-qdoc-commands-documentcontents.html#abstract}{\\abstract} \o \l {06-qdoc-commands-verbatimcode.html#badcode}{\\badcode} \o \l {04-qdoc-commands-textformatting.html#bold}{\\bold} \o \l 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{\\tableofcontents} \o \l {08-qdoc-commands-linking.html#target}{\\target} \o \l {17-qdoc-commands-thread.html#threadsafe}{\\threadsafe} \o \l {20-qdoc-commands-title.html#title}{\\title} \o \l {04-qdoc-commands-textformatting.html#tt}{\\tt} \o \l {13-qdoc-commands-topical.html#typedef}{\\typedef} \o \l {04-qdoc-commands-textformatting.html#underline}{\\underline} \o \l {13-qdoc-commands-topical.html#variable}{\\variable} \o \l {10-qdoc-commands-container.html#value}{\\value} \o \l {11-qdoc-commands-documentcontents.html#warning}{\\warning} \endlist */ /*! \externalpage http://qt.nokia.com/about \title About Qt */