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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Qt Toolkit - qasyncimageio.h include file</title><style type="text/css"><!--h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm; }a:link { color: #004faf; text-decoration: none }a:visited { color: #672967; text-decoration: none }body { background: white; color: black; }--></style></head><body bgcolor="#ffffff"><table width="100%"><tr><td><a href="index.html"><img width="100" height="100" src="qtlogo.png"alt="Home" border="0"><img width="100"height="100" src="face.png" alt="Home" border="0"></a><td valign="top"><div align="right"><img src="dochead.png" width="472" height="27"><br><a href="classes.html"><b>Classes</b></a>- <a href="annotated.html">Annotated</a>- <a href="hierarchy.html">Tree</a>- <a href="functions.html">Functions</a>- <a href="index.html">Home</a>- <a href="topicals.html"><b>Structure</b> <font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" align="center" size=32>Qte</font></a></div></table><h1 align=center>qasyncimageio.h</h1><br clear="all">This is the verbatim text of the qasyncimageio.h include file. It isprovided only for illustration; the copyrightremains with Trolltech.<hr><pre>/****************************************************************************** $Id: qt/src/kernel/qasyncimageio.h 2.3.8 edited 2004-05-12 $**** Definition of asynchronous image/movie loading classes**** Created : 970617**** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.**** This file is part of the kernel module of the Qt GUI Toolkit.**** This file may be distributed under the terms of the Q Public License** as defined by Trolltech AS of Norway and appearing in the file** LICENSE.QPL included in the packaging of this file.**** This file may be distributed and/or modified under the terms of the** GNU General Public License version 2 as published by the Free Software** Foundation and appearing in the file LICENSE.GPL included in the** packaging of this file.**** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition** 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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.**** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for** information about Qt Commercial License Agreements.** See http://www.trolltech.com/qpl/ for QPL licensing information.** See http://www.trolltech.com/gpl/ for GPL licensing information.**** Contact info@trolltech.com if any conditions of this licensing are** not clear to you.************************************************************************/#ifndef QASYNCIMAGEIO_H#define QASYNCIMAGEIO_H#ifndef QT_H#include "qimage.h"#endif // QT_H#ifndef QT_NO_ASYNC_IMAGE_IOclass Q_EXPORT <a href="qimageconsumer.html">QImageConsumer</a> {public: virtual void end()=0; // Change transfer type 1. virtual void changed( const QRect& ) = 0; virtual void frameDone() = 0; // Change transfer type 2. virtual void frameDone( const QPoint&, const QRect& ) = 0; virtual void setLooping( int ) = 0; virtual void setFramePeriod( int ) = 0; virtual void setSize( int, int ) = 0;};class Q_EXPORT <a href="qimageformat.html">QImageFormat</a> {public: virtual ~QImageFormat(); virtual int decode( QImage& img, QImageConsumer* consumer, const uchar* buffer, int length ) = 0;};class Q_EXPORT <a href="qimageformattype.html">QImageFormatType</a> {public: virtual ~QImageFormatType(); virtual QImageFormat* decoderFor( const uchar* buffer, int length ) = 0; virtual const char* formatName() const = 0;protected: QImageFormatType();};struct QImageDecoderPrivate;class Q_EXPORT <a href="qimagedecoder.html">QImageDecoder</a> {public: QImageDecoder( QImageConsumer* c ); ~QImageDecoder(); const QImage& image() { return img; } int decode( const uchar* buffer, int length ); static const char* formatName( const uchar* buffer, int length ); static QImageFormatType* format( const char* name ); // direct use - no decode() static QStrList inputFormats(); static void registerDecoderFactory( QImageFormatType* ); static void unregisterDecoderFactory( QImageFormatType* );private: QImageFormat* actual_decoder; QImageConsumer* consumer; QImage img; QImageDecoderPrivate *d;};#endif // QT_NO_ASYNC_IMAGE_IO#endif // QASYNCIMAGEIO_H</pre><p><address><hr><div align="center"><table width="100%" cellspacing="0" border="0"><tr><td>Copyright ⌨️ 快捷键说明
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