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diff --git a/src/gui/kernel/qwindowformat_qpa.h b/src/gui/kernel/qwindowformat_qpa.h
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+++ b/src/gui/kernel/qwindowformat_qpa.h
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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 QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef QPLATFORMWINDOWFORMAT_QPA_H
+#define QPLATFORMWINDOWFORMAT_QPA_H
+
+#include <QtGui/QPlatformWindow>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+class QWindowContext;
+class QWindowFormatPrivate;
+
+class Q_GUI_EXPORT QWindowFormat
+{
+public:
+    enum FormatOption {
+        StereoBuffers           = 0x0001,
+        WindowSurface           = 0x0002
+    };
+    Q_DECLARE_FLAGS(FormatOptions, FormatOption)
+
+    enum SwapBehavior {
+        DefaultSwapBehavior,
+        SingleBuffer,
+        DoubleBuffer,
+        TripleBuffer
+    };
+
+    enum OpenGLContextProfile {
+        NoProfile,
+        CoreProfile,
+        CompatibilityProfile
+    };
+
+    QWindowFormat();
+    QWindowFormat(FormatOptions options);
+    QWindowFormat(const QWindowFormat &other);
+    QWindowFormat &operator=(const QWindowFormat &other);
+    ~QWindowFormat();
+
+    void setDepthBufferSize(int size);
+    int depthBufferSize() const;
+
+    void setStencilBufferSize(int size);
+    int stencilBufferSize() const;
+
+    void setRedBufferSize(int size);
+    int redBufferSize() const;
+    void setGreenBufferSize(int size);
+    int greenBufferSize() const;
+    void setBlueBufferSize(int size);
+    int blueBufferSize() const;
+    void setAlphaBufferSize(int size);
+    int alphaBufferSize() const;
+
+    void setSamples(int numSamples);
+    int samples() const;
+
+    void setSwapBehavior(SwapBehavior behavior);
+    SwapBehavior swapBehavior() const;
+
+    bool hasAlpha() const;
+
+    void setProfile(OpenGLContextProfile profile);
+    OpenGLContextProfile profile() const;
+
+    void setSharedContext(QWindowContext *context);
+    QWindowContext *sharedContext() const;
+
+    bool stereo() const;
+    void setStereo(bool enable);
+    bool windowSurface() const;
+    void setWindowSurface(bool enable);
+
+    void setOption(QWindowFormat::FormatOptions opt);
+    bool testOption(QWindowFormat::FormatOptions opt) const;
+
+private:
+    QWindowFormatPrivate *d;
+
+    void detach();
+
+    friend Q_GUI_EXPORT bool operator==(const QWindowFormat&, const QWindowFormat&);
+    friend Q_GUI_EXPORT bool operator!=(const QWindowFormat&, const QWindowFormat&);
+#ifndef QT_NO_DEBUG_STREAM
+    friend Q_GUI_EXPORT QDebug operator<<(QDebug, const QWindowFormat &);
+#endif
+};
+
+Q_GUI_EXPORT bool operator==(const QWindowFormat&, const QWindowFormat&);
+Q_GUI_EXPORT bool operator!=(const QWindowFormat&, const QWindowFormat&);
+
+#ifndef QT_NO_DEBUG_STREAM
+Q_OPENGL_EXPORT QDebug operator<<(QDebug, const QWindowFormat &);
+#endif
+
+Q_DECLARE_OPERATORS_FOR_FLAGS(QWindowFormat::FormatOptions)
+
+inline bool QWindowFormat::stereo() const
+{
+    return testOption(QWindowFormat::StereoBuffers);
+}
+
+inline bool QWindowFormat::windowSurface() const
+{
+    return testOption(QWindowFormat::WindowSurface);
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif //QPLATFORMWINDOWFORMAT_QPA_H