Long live Qt 4.5!

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diff --git a/src/gui/painting/qwindowsurface_raster_p.h b/src/gui/painting/qwindowsurface_raster_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWINDOWSURFACE_RASTER_P_H
+#define QWINDOWSURFACE_RASTER_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of the QLibrary class.  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
+
+#ifdef Q_WS_WIN
+#define Q_WS_EX_LAYERED           0x00080000 // copied from WS_EX_LAYERED in winuser.h
+#define Q_LWA_ALPHA               0x00000002 // copied from LWA_ALPHA in winuser.h
+#define Q_ULW_ALPHA               0x00000002 // copied from ULW_ALPHA in winuser.h
+#define Q_AC_SRC_ALPHA            0x00000001 // copied from AC_SRC_ALPHA in winuser.h
+
+struct Q_BLENDFUNCTION {
+  BYTE     BlendOp;
+  BYTE     BlendFlags;
+  BYTE     SourceConstantAlpha;
+  BYTE     AlphaFormat;
+};
+
+struct Q_UPDATELAYEREDWINDOWINFO {
+    DWORD cbSize;
+    HDC hdcDst;
+    const POINT *pptDst;
+    const SIZE *psize;
+    HDC hdcSrc;
+    const POINT *pptSrc;
+    COLORREF crKey;
+    const Q_BLENDFUNCTION *pblend;
+    DWORD dwFlags;
+    const RECT *prcDirty;
+};
+
+typedef BOOL (WINAPI *PtrUpdateLayeredWindowIndirect)(HWND hwnd, const Q_UPDATELAYEREDWINDOWINFO *pULWInfo);
+extern PtrUpdateLayeredWindowIndirect ptrUpdateLayeredWindowIndirect;
+#endif
+
+class QPaintDevice;
+class QPoint;
+class QRegion;
+class QRegion;
+class QSize;
+class QWidget;
+class QRasterWindowSurfacePrivate;
+class QNativeImage;
+
+class Q_GUI_EXPORT QRasterWindowSurface : public QWindowSurface
+{
+public:
+    QRasterWindowSurface(QWidget *widget);
+    ~QRasterWindowSurface();
+
+    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);
+
+private:
+    void prepareBuffer(QImage::Format format, QWidget *widget);
+    Q_DECLARE_PRIVATE(QRasterWindowSurface)
+    QRasterWindowSurfacePrivate *d_ptr;
+};
+
+QT_END_NAMESPACE
+
+#endif // QWINDOWSURFACE_RASTER_P_H