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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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7 ** This file is part of the documentation of the Qt Toolkit. |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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14 ** this package. |
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16 ** GNU Lesser General Public License Usage |
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18 ** General Public License version 2.1 as published by the Free Software |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 /*! |
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43 \group desktop |
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44 \title Desktop Integration Classes |
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45 */ |
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46 |
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47 /*! |
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48 \page desktop-integration.html |
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49 \title Desktop Integration |
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50 \brief Integrating with the user's desktop environment. |
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51 |
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52 \ingroup best-practices |
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53 |
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54 Qt applications behave well in the user's desktop environment, but certain |
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55 integrations require additional, and sometimes platform specific, techniques. |
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56 |
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57 \tableofcontents |
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58 |
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59 \section1 Useful Classes |
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60 |
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61 Various classes in Qt are designed to help developers integrate applications into |
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62 users' desktop environments. These classes enable developers to take advantage |
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63 of native services while still using a cross-platform API. |
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64 |
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65 \annotatedlist desktop |
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66 |
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67 \section1 Setting the Application Icon |
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68 |
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69 In order to change the icon of the executable application file |
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70 itself, as it is presented on the desktop (i.e., prior to |
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71 application execution), it is necessary to employ another, |
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72 platform-dependent technique. |
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73 |
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74 \tableofcontents {1 Setting the Application Icon} |
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75 |
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76 \section1 Opening External Resources |
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77 |
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78 Although Qt provides facilities to handle and display resources, such as |
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79 \l{QImageIOHandler}{common image formats} and \l{QTextDocument}{HTML}, |
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80 it is sometimes necessary to open files and external resources using external |
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81 applications. |
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82 |
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83 QDesktopServices provides an interface to services offered by the user's desktop |
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84 environment. In particular, the \l{QDesktopServices::}{openUrl()} function is |
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85 used to open resources using the appropriate application, which may have been |
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86 specifically configured by the user. |
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87 |
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88 \section1 System Tray Icons |
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89 |
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90 Many modern desktop environments feature docks or panels with \e{system trays} |
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91 in which applications can install icons. Applications often use system tray icons |
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92 to display status information, either by updating the icon itself or by showing |
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93 information in "balloon messages". Additionally, many applications provide |
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94 pop-up menus that can be accessed via their system tray icons. |
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95 |
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96 The QSystemTrayIcon class exposes all of the above features via an intuitive |
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97 Qt-style API that can be used on all desktop platforms. |
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98 |
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99 \section1 Desktop Widgets |
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100 |
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101 On systems where the user's desktop is displayed using more than one screen, |
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102 certain types of applications may need to obtain information about the |
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103 configuration of the user's workspace to ensure that new windows and dialogs |
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104 are opened in appropriate locations. |
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105 |
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106 The QDesktopWidget class can be used to monitor the positions of widgets and |
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107 notify applications about changes to the way the desktop is split over the |
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108 available screens. This enables applications to implement policies for |
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109 positioning new windows so that, for example, they do not distract a user |
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110 who is working on a specific task. |
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111 */ |