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diff --git a/simpleglwindowsurface.cpp b/simpleglwindowsurface.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "simpleglwindowsurface.h"
+#include "simpleglscreen.h"
+#include <QDebug>
+
+SimpleGLWindowSurface::SimpleGLWindowSurface(QWidget *w, SimpleGLScreen *s)
+    : QWSGLWindowSurface(w), widget(w), screen(s)
+{
+    setSurfaceFlags(QWSWindowSurface::Opaque);
+}
+
+SimpleGLWindowSurface::SimpleGLWindowSurface()
+    : QWSGLWindowSurface(), widget(NULL), screen(NULL)
+{
+    setSurfaceFlags(QWSWindowSurface::Opaque);
+}
+
+SimpleGLWindowSurface::~SimpleGLWindowSurface()
+{
+}
+
+bool SimpleGLWindowSurface::isValid() const
+{
+    return (widget != 0);
+}
+
+QByteArray SimpleGLWindowSurface::permanentState() const
+{
+    // Nothing interesting to pass to the server just yet.
+    return QByteArray();
+}
+
+void SimpleGLWindowSurface::setPermanentState(const QByteArray &state)
+{
+    Q_UNUSED(state);
+}
+
+void SimpleGLWindowSurface::flush
+        (QWidget *widget, const QRegion &region, const QPoint &offset)
+{
+    // The GL paint engine is responsible for the swapBuffers() call.
+    // If we were to call the base class's implementation of flush()
+    // then it would fetch the image() and try manually blit it to
+    // the screeen.
+    Q_UNUSED(widget);
+    Q_UNUSED(region);
+    Q_UNUSED(offset);
+}
+
+QImage SimpleGLWindowSurface::image() const
+{
+    // No cross-platform way to fetch the window contents.
+    return QImage(16, 16, screen->pixelFormat());
+}
+
+QPaintDevice *SimpleGLWindowSurface::paintDevice()
+{
+    return widget;
+}