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+/****************************************************************************
+**
+** Copyright (C) 2011 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \example demos/composition
+    \title Composition Modes
+
+    This demo shows some of the more advanced composition modes supported by Qt.
+
+    \image composition-demo.png
+
+    The two most common forms of composition are \bold{Source} and \bold{SourceOver}.
+    \bold{Source} is used to draw opaque objects onto a paint device. In this mode,
+    each pixel in the source replaces the corresponding pixel in the destination.
+    In \bold{SourceOver} composition mode, the source object is transparent and is
+    drawn on top of the destination.
+
+    In addition to these standard modes, Qt defines the complete set of composition modes
+    as defined by X. Porter and Y. Duff. See the QPainter documentation for details.
+*/