/**************************************************************************** ** ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/ ** ** This file is part of the documentation of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:FDL$ ** 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. ** ** Other Usage ** Alternatively, this file may be used in accordance with the terms ** and conditions contained in a signed written agreement between you ** and Nokia. ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ /*! \page desktop-integration.html \title Desktop Integration \brief Integrating with the user's desktop environment. \ingroup best-practices \ingroup qt-gui-concepts Qt applications behave well in the user's desktop environment, but certain integrations require additional, and sometimes platform specific, techniques. \tableofcontents \section1 Useful Classes Various classes in Qt are designed to help developers integrate applications into users' desktop environments. These classes enable developers to take advantage of native services while still using a cross-platform API. \annotatedlist desktop \section1 Setting the Application Icon In order to change the icon of the executable application file itself, as it is presented on the desktop (i.e., prior to application execution), it is necessary to employ another, platform-dependent technique. \tableofcontents {1 Setting the Application Icon} \section1 Opening External Resources Although Qt provides facilities to handle and display resources, such as \l{QImageIOHandler}{common image formats} and \l{QTextDocument}{HTML}, it is sometimes necessary to open files and external resources using external applications. QDesktopServices provides an interface to services offered by the user's desktop environment. In particular, the \l{QDesktopServices::}{openUrl()} function is used to open resources using the appropriate application, which may have been specifically configured by the user. \section1 System Tray Icons Many modern desktop environments feature docks or panels with \e{system trays} in which applications can install icons. Applications often use system tray icons to display status information, either by updating the icon itself or by showing information in "balloon messages". Additionally, many applications provide pop-up menus that can be accessed via their system tray icons. The QSystemTrayIcon class exposes all of the above features via an intuitive Qt-style API that can be used on all desktop platforms. \section1 Desktop Widgets On systems where the user's desktop is displayed using more than one screen, certain types of applications may need to obtain information about the configuration of the user's workspace to ensure that new windows and dialogs are opened in appropriate locations. The QDesktopWidget class can be used to monitor the positions of widgets and notify applications about changes to the way the desktop is split over the available screens. This enables applications to implement policies for positioning new windows so that, for example, they do not distract a user who is working on a specific task. */