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/****************************************************************************
**
** 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.
**
** $QT_BEGIN_LICENSE:FDL$
** 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 Free Documentation License
** Alternatively, this file may be used under the terms of the GNU Free
** Documentation License version 1.3 as published by the Free Software
** Foundation and appearing in the file included in the packaging of this
** file.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
/*!
\page activeqt-dumpcpp.html
\title The dumpcpp Tool (ActiveQt)
\ingroup activeqt-tools
\keyword dumpcpp
The \c dumpcpp tool generates a C++ namespace for a type library.
To generate a C++ namespace for a type library, call \c dumpcpp with the following
command line parameters:
\table
\header
\i Option
\i Result
\row
\i input
\i Generate documentation for \e input. \e input can specify a type library file or a type
library ID, or a CLSID or ProgID for an object
\row
\i -o file
\i Writes the class declaration to \e {file}.h and meta object infomation to \e {file}.cpp
\row
\i -n namespace
\i Generate a C++ namespace \e namespace
\row
\i -nometaobject
\i Do not generate a .cpp file with the meta object information.
The meta object is then generated in runtime.
\row
\i -getfile libid
\i Print the filename for the typelibrary \e libid to stdout
\row
\i -compat
\i Generate namespace with dynamicCall-compatible API
\row
\i -v
\i Print version information
\row
\i -h
\i Print help
\endtable
\c dumpcpp can be integrated into the \c qmake build system. In your .pro file, list the type
libraries you want to use in the TYPELIBS variable:
\snippet examples/activeqt/qutlook/qutlook.pro 0
The generated namespace will declare all enumerations, as well as one QAxObject subclass
for each \c coclass and \c interface declared in the type library. coclasses marked with
the \c control attribute will be wrapped by a QAxWidget subclass.
Those classes that wrap creatable coclasses (i.e. coclasses that are not marked
as \c noncreatable) have a default constructor; this is typically a single class
of type \c Application.
\snippet doc/src/snippets/code/doc_src_activeqt-dumpcpp.qdoc 0
All other classes can only be created by passing an IDispatch interface pointer
to the constructor; those classes should however not be created explicitly.
Instead, use the appropriate API of already created objects.
\snippet doc/src/snippets/code/doc_src_activeqt-dumpcpp.qdoc 1
All coclass wrappers also have one constructors taking an interface wrapper class
for each interface implemented.
\snippet doc/src/snippets/code/doc_src_activeqt-dumpcpp.qdoc 2
You have to create coclasses to be able to connect to signals of the subobject.
Note that the constructor deletes the interface object, so the following will
cause a segmentation fault:
\snippet doc/src/snippets/code/doc_src_activeqt-dumpcpp.qdoc 3
If the return type is of a coclass or interface type declared in another type
library you have to include the namespace header for that other type library
before including the header for the namespace you want to use (both header have
to be generated with this tool).
By default, methods and property returning subobjects will use the type as in
the type library. The caller of the function is responsible for deleting or
reparenting the object returned. If the \c -compat switch is set, properties
and method returning a COM object have the return type \c IDispatch*, and
the namespace will not declare wrapper classes for interfaces.
In this case, create the correct wrapper class explicitly:
\snippet doc/src/snippets/code/doc_src_activeqt-dumpcpp.qdoc 4
You can of course use the IDispatch* returned directly, in which case you have to
call \c Release() when finished with the interface.
All classes in the namespace are tagged with a macro that allows you to export
or import them from a DLL. To do that, declare the macro to expand to
\c __declspec(dllimport/export) before including the header file.
To build the tool you must first build the QAxContainer library.
Then run your make tool in \c tools/dumpcpp.
*/
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