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 ([email protected])
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6 | **
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7 | ** This file is part of the documentation of the Qt Toolkit.
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8 | **
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9 | ** $QT_BEGIN_LICENSE:LGPL$
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10 | ** Commercial Usage
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11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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12 | ** accordance with the Qt Commercial License Agreement provided with the
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13 | ** Software or, alternatively, in accordance with the terms contained in
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14 | ** a written agreement between you and Nokia.
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15 | **
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16 | ** GNU Lesser General Public License Usage
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17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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18 | ** General Public License version 2.1 as published by the Free Software
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20 | ** packaging of this file. Please review the following information to
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24 | ** In addition, as a special exception, Nokia gives you certain additional
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25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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27 | **
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28 | ** GNU General Public License Usage
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29 | ** Alternatively, this file may be used under the terms of the GNU
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31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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36 | ** If you have questions regarding the use of this file, please contact
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37 | ** Nokia at [email protected].
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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 | \page examples-overview.html
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44 | \raw HTML
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45 | <script>
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46 | document.location.href = "examples.html";
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47 | </script>
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48 | \endraw
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49 | Click this \l{Qt Examples}{link} if you don't get redirected.
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50 | */
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51 |
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52 | /*!
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53 | \page examples.html
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54 | \title Qt Examples
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55 | \brief The example programs provided with Qt.
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56 |
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57 | \previouspage Tutorials
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58 | \contentspage How to Learn Qt
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59 | \nextpage Qt Demonstrations
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60 |
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61 | Qt is supplied with a variety of examples that cover almost every aspect
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62 | of development. They are not all designed to be impressive when you run
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63 | them, but their source code is carefully written to show good Qt
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64 | programming practices. You can launch any of these programs from the
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65 | \l{Examples and Demos Launcher} application.
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66 |
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67 | These examples are ordered by functional area, but many examples often
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68 | use features from many parts of Qt to highlight one area in particular.
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69 | If you are new to Qt, you should probably start by going through the
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70 | \l{Tutorials} before you have a look at the
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71 | \l{mainwindows/application}{Application} example.
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72 |
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73 | In addition to the examples and the tutorial, Qt includes a
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74 | \l{Qt Demonstrations}{selection of demos} that deliberately show off
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75 | Qt's features. You might want to look at these as well.
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76 |
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77 | \section1 \l{Widgets Examples}{Widgets}
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78 | \beginfloatleft
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79 | \l{Widgets Examples}{\inlineimage widget-examples.png
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80 | }
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81 |
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82 | \endfloat
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83 | Qt comes with a large range of standard widgets that users of modern
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84 | applications have come to expect. You can also develop your own custom
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85 | widgets and controls, and use them alongside standard widgets.
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86 |
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87 | It is even possible to provide custom styles and themes for widgets that can
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88 | be used to change the appearance of standard widgets and appropriately
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89 | written custom widgets.
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90 |
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91 | \clearfloat
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92 | \section1 \l{Dialog Examples}{Dialogs}
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93 | \beginfloatleft
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94 | \l{Dialog Examples}{\inlineimage dialog-examples.png
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95 | }
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96 |
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97 | \endfloat
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98 | Qt includes standard dialogs for many common operations, such as file
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99 | selection, printing, and color selection.
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100 |
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101 | Custom dialogs can also be created for specialized modal or modeless
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102 | interactions with users.
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103 |
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104 | \clearfloat
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105 | \section1 \l{Main Window Examples}{Main Windows}
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106 | \beginfloatleft
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107 | \l{Main Window Examples}{\inlineimage mainwindow-examples.png
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108 | }
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109 |
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110 | \endfloat
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111 | All the standard features of application main windows are provided by Qt.
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112 |
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113 | Main windows can have pull down menus, tool bars, and dock windows. These
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114 | separate forms of user input are unified in an integrated action system that
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115 | also supports keyboard shortcuts and accelerator keys in menu items.
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116 |
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117 | \clearfloat
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118 | \section1 \l{Layout Examples}{Layouts}
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119 | \beginfloatleft
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120 | \l{Layout Examples}{\inlineimage layout-examples.png
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121 | }
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122 |
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123 | \endfloat
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124 | Qt uses a layout-based approach to widget management. Widgets are arranged in
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125 | the optimal positions in windows based on simple layout rules, leading to a
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126 | consistent look and feel.
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127 |
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128 | Custom layouts can be used to provide more control over the positions and
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129 | sizes of child widgets.
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130 |
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131 | \clearfloat
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132 | \section1 \l{Item Views Examples}{Item Views}
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133 | \beginfloatleft
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134 | \l{Item Views Examples}{\inlineimage itemview-examples.png
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135 | }
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136 |
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137 | \endfloat
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138 | Item views are widgets that typically display data sets. Qt 4's model/view
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139 | framework lets you handle large data sets by separating the underlying data
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140 | from the way it is represented to the user, and provides support for
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141 | customized rendering through the use of delegates.
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142 |
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143 | \clearfloat
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144 | \section1 \l{Graphics View Examples}{Graphics View}
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145 | \beginfloatleft
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146 | \l{Graphics View Examples}{\inlineimage graphicsview-examples.png
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147 | }
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148 |
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149 | \endfloat
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150 | Qt is provided with a comprehensive canvas through the GraphicsView
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151 | classes.
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152 |
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153 | \clearfloat
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154 | \section1 \l{Painting Examples}{Painting}
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155 | \beginfloatleft
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156 | \l{Painting Examples}{\inlineimage painting-examples.png
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157 | }
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158 |
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159 | \endfloat
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160 | Qt's painting system is able to render vector graphics, images, and outline
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161 | font-based text with sub-pixel accuracy accuracy using anti-aliasing to
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162 | improve rendering quality.
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163 |
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164 | \clearfloat
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165 | \section1 \l{Rich Text Examples}{Rich Text}
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166 | \beginfloatleft
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167 | \l{Rich Text Examples}{\inlineimage richtext-examples.png
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168 | }
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169 |
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170 | \endfloat
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171 | Qt provides powerful document-oriented rich text engine that supports Unicode
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172 | and right-to-left scripts. Documents can be manipulated using a cursor-based
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173 | API, and their contents can be imported and exported as both HTML and in a
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174 | custom XML format.
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175 |
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176 | \clearfloat
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177 | \section1 \l{Desktop Examples}{Desktop}
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178 | \beginfloatleft
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179 | \l{Desktop Examples}{\inlineimage desktop-examples.png
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180 | }
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181 |
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182 | \endfloat
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183 | Qt provides features to enable applications to integrate with the user's
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184 | preferred desktop environment.
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185 |
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186 | Features such as system tray icons, access to the desktop widget, and
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187 | support for desktop services can be used to improve the appearance of
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188 | applications and take advantage of underlying desktop facilities.
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189 |
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190 | \clearfloat
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191 | \section1 \l{Drag and Drop Examples}{Drag and Drop}
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192 | \beginfloatleft
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193 | \l{Drag and Drop Examples}{\inlineimage draganddrop-examples.png
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194 | }
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195 |
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196 | \endfloat
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197 | Qt supports native drag and drop on all platforms via an extensible
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198 | MIME-based system that enables applications to send data to each other in the
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199 | most appropriate formats.
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200 |
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201 | Drag and drop can also be implemented for internal use by applications.
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202 |
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203 | \clearfloat
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204 | \section1 \l{Threading and Concurrent Programming Examples}{Threading and Concurrent Programming}
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205 | \beginfloatleft
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206 | \l{Threading and Concurrent Programming Examples}{\inlineimage thread-examples.png
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207 | }
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208 |
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209 | \endfloat
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210 | Qt 4 makes it easier than ever to write multithreaded applications. More
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211 | classes have been made usable from non-GUI threads, and the signals and slots
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212 | mechanism can now be used to communicate between threads.
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213 |
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214 | The QtConcurrent namespace includes a collection of classes and functions
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215 | for straightforward concurrent programming.
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216 |
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217 | \clearfloat
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218 | \section1 \l{Tools Examples}{Tools}
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219 | \beginfloatleft
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220 | \l{Tools Examples}{\inlineimage tool-examples.png
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221 | }
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222 |
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223 | \endfloat
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224 | Qt is equipped with a range of capable tool classes, from containers and
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225 | iterators to classes for string handling and manipulation.
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226 |
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227 | Other classes provide application infrastructure support, handling plugin
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228 | loading and managing configuration files.
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229 |
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230 | \clearfloat
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231 | \section1 \l{Network Examples}{Network}
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232 | \beginfloatleft
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233 | \l{Network Examples}{\inlineimage network-examples.png
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234 | }
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235 |
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236 | \endfloat
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237 | Qt is provided with an extensive set of network classes to support both
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238 | client-based and server side network programming.
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239 |
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240 | \clearfloat
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241 | \section1 \l{Inter-Process Communication Examples}{Inter-Process Communication}
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242 | \beginfloatleft
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243 | \l{Inter-Process Communication Examples}{\inlineimage ipc-examples.png
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244 | }
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245 |
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246 | \endfloat
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247 | Simple, lightweight inter-process communication can be performed using shared
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248 | memory and local sockets.
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249 |
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250 | \clearfloat
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251 | \section1 \l{OpenGL Examples}{OpenGL} and \l{OpenVG Examples}{OpenVG} Examples
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252 | \beginfloatleft
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253 | \l{OpenGL Examples}{\inlineimage opengl-examples.png
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254 | }
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255 |
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256 | \endfloat
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257 | Qt provides support for integration with OpenGL implementations on all
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258 | platforms, giving developers the opportunity to display hardware accelerated
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259 | 3D graphics alongside a more conventional user interface.
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260 |
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261 | Qt provides support for integration with OpenVG implementations on
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262 | platforms with suitable drivers.
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263 |
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264 | \clearfloat
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265 | \section1 \l{Multimedia Examples}{Multimedia Framework}
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266 | \beginfloatleft
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267 | \l{Multimedia Examples}{\inlineimage phonon-examples.png
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268 | }
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269 |
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270 | \endfloat
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271 | Qt provides low-level audio support on linux,windows and mac platforms by default and
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272 | an audio plugin API to allow developers to implement there own audio support for
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273 | custom devices and platforms.
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274 |
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275 | The Phonon Multimedia Framework brings multimedia support to Qt applications.
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276 |
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277 | \clearfloat
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278 | \section1 \l{SQL Examples}{SQL}
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279 | \beginfloatleft
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