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diff --git a/src/gui/painting/qwindowsurface_x11_p.h b/src/gui/painting/qwindowsurface_x11_p.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 QWINDOWSURFACE_X11_P_H
+#define QWINDOWSURFACE_X11_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of other Qt classes.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <qglobal.h>
+#include "private/qwindowsurface_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QPaintDevice;
+class QPoint;
+class QRegion;
+class QRegion;
+class QSize;
+class QWidget;
+struct QX11WindowSurfacePrivate;
+
+class QX11WindowSurface : public QWindowSurface
+{
+public:
+    QX11WindowSurface(QWidget *widget);
+    ~QX11WindowSurface();
+
+    QPaintDevice *paintDevice();
+    void flush(QWidget *widget, const QRegion &region, const QPoint &offset);
+
+    void beginPaint(const QRegion &rgn);
+    void setGeometry(const QRect &rect);
+    bool scroll(const QRegion &area, int dx, int dy);
+    QPixmap grabWidget(const QWidget *widget,
+                       const QRect& rectangle = QRect()) const;
+    WindowSurfaceFeatures features() const;
+
+private:
+    QX11WindowSurfacePrivate *d_ptr;
+    GC gc;
+};
+
+QT_END_NAMESPACE
+
+#endif // QWINDOWSURFACE_X11_P_H