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diff --git a/src/kernel/qpngio.h b/src/kernel/qpngio.h
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+/****************************************************************************
+**
+** Definition of PNG QImage IOHandler
+**
+** Created : 970521
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of the kernel module of the Qt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free Qt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing requirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at sales@trolltech.com.
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.QPL
+** included in the packaging of this file.  Licensees holding valid Qt
+** Commercial licenses may use this file in accordance with the Qt
+** Commercial License Agreement provided with the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+#ifndef QPNGIO_H
+#define QPNGIO_H
+
+#ifndef QT_H
+#include "qimage.h"
+#endif // QT_H
+
+#ifndef QT_NO_IMAGEIO_PNG
+
+void qInitPngIO();
+
+class QIODevice;
+
+#ifndef Q_PNGEXPORT
+#if !defined(QT_PLUGIN)
+#define Q_PNGEXPORT Q_EXPORT
+#else
+#define Q_PNGEXPORT
+#endif
+#endif
+
+class Q_PNGEXPORT QPNGImageWriter {
+public:
+    QPNGImageWriter(QIODevice*);
+    ~QPNGImageWriter();
+
+    enum DisposalMethod { Unspecified, NoDisposal, RestoreBackground, RestoreImage };
+    void setDisposalMethod(DisposalMethod);
+    void setLooping(int loops=0); // 0 == infinity
+    void setFrameDelay(int msecs);
+    void setGamma(float);
+
+    bool writeImage(const QImage& img, int x, int y);
+    bool writeImage(const QImage& img, int quality, int x, int y);
+    bool writeImage(const QImage& img)
+	{ return writeImage(img, 0, 0); }
+    bool writeImage(const QImage& img, int quality)
+	{ return writeImage(img, quality, 0, 0); }
+
+    QIODevice* device() { return dev; }
+
+private:
+    QIODevice* dev;
+    int frames_written;
+    DisposalMethod disposal;
+    int looping;
+    int ms_delay;
+    float gamma;
+};
+
+class Q_PNGEXPORT QPNGImagePacker : public QPNGImageWriter {
+public:
+    QPNGImagePacker(QIODevice*, int depth, int convflags);
+
+    void setPixelAlignment(int x);
+    bool packImage(const QImage& img);
+
+private:
+    QImage previous;
+    int depth;
+    int convflags;
+    int alignx;
+};
+
+#endif // QT_NO_IMAGEIO_PNG
+
+#endif // QPNGIO_H