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<font color="#004faf">Home</font></a>
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<font color="#004faf">All Classes</font></a>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>qpngio.h</h1>
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<p>This is the verbatim text of the qpngio.h include file. It is provided only for illustration; the copyright remains with Trolltech.
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<hr>
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<pre>
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/****************************************************************************
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** $Id: qt/qpngio.h 3.3.8 edited Jan 11 14:38 $
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**
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** Definition of PNG TQImage IOHandler
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**
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** Created : 970521
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**
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** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of the kernel module of the TQt GUI Toolkit.
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**
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** This file may be used under the terms of the GNU General Public
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** License versions 2.0 or 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Alternatively you may (at your option) use any
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** later version of the GNU General Public License if such license has
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** been publicly approved by Trolltech ASA (or its successors, if any)
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** and the KDE Free TQt Foundation.
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**
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** Please review the following information to ensure GNU General
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** This file may be used under the terms of the Q Public License as
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** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
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** included in the packaging of this file. Licensees holding valid TQt
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** Commercial licenses may use this file in accordance with the TQt
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** Commercial License Agreement provided with the Software.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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** herein.
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**
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**********************************************************************/
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#ifndef TQPNGIO_H
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#define TQPNGIO_H
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#ifndef QT_H
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#include "qimage.h"
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#endif // QT_H
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#ifndef QT_NO_IMAGEIO_PNG
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void qInitPngIO();
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class TQIODevice;
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#ifndef Q_PNGEXPORT
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#if !defined(QT_PLUGIN)
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#define Q_PNGEXPORT Q_EXPORT
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#else
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#define Q_PNGEXPORT
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#endif
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#endif
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class Q_PNGEXPORT TQPNGImageWriter {
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public:
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TQPNGImageWriter(TQIODevice*);
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~TQPNGImageWriter();
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enum DisposalMethod { Unspecified, NoDisposal, RestoreBackground, RestoreImage };
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void setDisposalMethod(DisposalMethod);
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void setLooping(int loops=0); // 0 == infinity
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void setFrameDelay(int msecs);
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void setGamma(float);
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bool writeImage(const TQImage& img, int x, int y);
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bool writeImage(const TQImage& img, int quality, int x, int y);
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bool writeImage(const TQImage& img)
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{ return writeImage(img, 0, 0); }
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bool writeImage(const TQImage& img, int quality)
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{ return writeImage(img, quality, 0, 0); }
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TQIODevice* device() { return dev; }
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private:
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TQIODevice* dev;
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int frames_written;
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DisposalMethod disposal;
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int looping;
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int ms_delay;
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float gamma;
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};
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class Q_PNGEXPORT TQPNGImagePacker : public TQPNGImageWriter {
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public:
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TQPNGImagePacker(TQIODevice*, int depth, int convflags);
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void setPixelAlignment(int x);
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bool packImage(const TQImage& img);
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private:
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TQImage previous;
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int depth;
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int convflags;
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int alignx;
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};
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#endif // QT_NO_IMAGEIO_PNG
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#endif // TQPNGIO_H
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</pre>
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<!-- eof -->
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<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>TQt 3.3.8</div>
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</table></div></address></body>
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