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diff --git a/src/gui/image/qvolatileimage_p.h b/src/gui/image/qvolatileimage_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 QVOLATILEIMAGE_P_H
+#define QVOLATILEIMAGE_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtGui/qimage.h>
+#include <QtCore/qshareddata.h>
+
+QT_BEGIN_NAMESPACE
+
+class QVolatileImageData;
+
+class Q_GUI_EXPORT QVolatileImage
+{
+public:
+    QVolatileImage();
+    QVolatileImage(int w, int h, QImage::Format format);
+    explicit QVolatileImage(const QImage &sourceImage);
+    explicit QVolatileImage(void *nativeImage, void *nativeMask = 0);
+    QVolatileImage(const QVolatileImage &other);
+    ~QVolatileImage();
+    QVolatileImage &operator=(const QVolatileImage &rhs);
+
+    bool isNull() const;
+    QImage::Format format() const;
+    int width() const;
+    int height() const;
+    int bytesPerLine() const;
+    int byteCount() const;
+    int depth() const;
+    bool hasAlphaChannel() const;
+    void beginDataAccess() const;
+    void endDataAccess(bool readOnly = false) const;
+    uchar *bits();
+    const uchar *constBits() const;
+    bool ensureFormat(QImage::Format format);
+    QImage toImage() const;
+    QImage &imageRef();
+    QPaintEngine *paintEngine();
+    void setAlphaChannel(const QPixmap &alphaChannel);
+    void fill(uint pixelValue);
+    void *duplicateNativeImage() const;
+    void copyFrom(QVolatileImage *source, const QRect &rect);
+
+private:
+    QSharedDataPointer<QVolatileImageData> d;
+};
+
+QT_END_NAMESPACE
+
+#endif // QVOLATILEIMAGE_P_H