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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><!-- /home/reggie/tmp/qt-3.0-reggie-5401/qt-x11-commercial-3.0.5/examples/sound/sound.doc:1 --><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Sound Example</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: #ffffff; color: black; }--></style></head><body><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr bgcolor="#E5E5E5"><td valign=center> <a href="index.html"><font color="#004faf">Home</font></a> | <a href="classes.html"><font color="#004faf">All Classes</font></a> | <a href="mainclasses.html"><font color="#004faf">Main Classes</font></a> | <a href="annotated.html"><font color="#004faf">Annotated</font></a> | <a href="groups.html"><font color="#004faf">Grouped Classes</font></a> | <a href="functions.html"><font color="#004faf">Functions</font></a></td><td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Sound Example</h1> <p> This example shows how easy it is to play sounds, e.g. .WAV files,if your machine is set up to play audio.<p> <hr><p> Header file:<p> <pre>/****************************************************************************** $Id$**** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.**** This file is part of an example program for Qt. This example** program may be used, distributed and modified without limitation.*******************************************************************************/#ifndef PLAY_H#define PLAY_H#include "qsound.h"#include <<a href="qmainwindow-h.html">qmainwindow.h</a>>class SoundPlayer : public <a href="qmainwindow.html">QMainWindow</a> { <a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>public: SoundPlayer();public slots: void doPlay1(); void doPlay2(); void doPlay3(); void doPlay4(); void doPlay34(); void doPlay1234();private: <a href="qsound.html">QSound</a> bucket3; <a href="qsound.html">QSound</a> bucket4;};#endif</pre><p> <hr><p> Implementation:<p> <pre>/****************************************************************************** $Id$**** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.**** This file is part of an example program for Qt. This example** program may be used, distributed and modified without limitation.*******************************************************************************///// Very simple example of QSound::play(filename)//// 99% of this program is just boilerplate Qt code to put up a nice// window so you think something special is happening.//#include "sound.h"#include <<a href="qapplication-h.html">qapplication.h</a>>#include <<a href="qmessagebox-h.html">qmessagebox.h</a>>#include <<a href="qmenubar-h.html">qmenubar.h</a>><a name="f578"></a>SoundPlayer::SoundPlayer() : <a href="qmainwindow.html">QMainWindow</a>(), bucket3("sounds/3.wav"), bucket4("sounds/4.wav"){ if (!QSound::isAvailable()) { // Bail out. Programs in which sound is not critical // could just silently (hehe) ignore the lack of a server. //<a name="x2659"></a> QMessageBox::<a href="qmessagebox.html#warning">warning</a>(this,"No Sound", "<p><b>Sorry, you are not running the Network Audio System.</b>" "<p>If you have the `au' command, run it in the background before this program. " "The latest release of the Network Audio System can be obtained from:" "<pre>\n" " &nbsp;\n" " ftp.ncd.com:/pub/ncd/technology/src/nas\n" " ftp.x.org:/contrib/audio/nas\n" "</pre>" "<p>Release 1.2 of NAS is also included with the X11R6" "contrib distribution." "<p>After installing NAS, you will then need to reconfigure Qt with NAS sound support"); } <a href="qpopupmenu.html">QPopupMenu</a> *file = new <a href="qpopupmenu.html">QPopupMenu</a>; file-><a href="qmenudata.html#insertItem">insertItem</a>("Play &1", this, SLOT(doPlay1()), CTRL+Key_1); file-><a href="qmenudata.html#insertItem">insertItem</a>("Play &2", this, SLOT(doPlay2()), CTRL+Key_2); file-><a href="qmenudata.html#insertItem">insertItem</a>("Play from bucket &3", this, SLOT(doPlay3()), CTRL+Key_3); file-><a href="qmenudata.html#insertItem">insertItem</a>("Play from bucket &4", this, SLOT(doPlay4()), CTRL+Key_4);<a name="x2658"></a> file-><a href="qmenudata.html#insertSeparator">insertSeparator</a>(); file-><a href="qmenudata.html#insertItem">insertItem</a>("Play 3 and 4 together", this, SLOT(doPlay34())); file-><a href="qmenudata.html#insertItem">insertItem</a>("Play all together", this, SLOT(doPlay1234())); file-><a href="qmenudata.html#insertSeparator">insertSeparator</a>(); file-><a href="qmenudata.html#insertItem">insertItem</a>("E&xit", qApp, SLOT(<a href="qapplication.html#quit">quit</a>())); <a href="qmainwindow.html#menuBar">menuBar</a>()->insertItem("&File", file);}void <a name="f579"></a>SoundPlayer::doPlay1(){<a name="x2660"></a> QSound::<a href="qsound.html#play">play</a>("sounds/1.wav");}void <a name="f580"></a>SoundPlayer::doPlay2(){ QSound::<a href="qsound.html#play">play</a>("sounds/2.wav");}void <a name="f581"></a>SoundPlayer::doPlay3(){ bucket3.play();}void <a name="f582"></a>SoundPlayer::doPlay4(){ bucket4.play();}void <a name="f583"></a>SoundPlayer::doPlay34(){ // Some sound platforms will only play one sound at a time bucket3.play(); bucket4.play();}void <a name="f584"></a>SoundPlayer::doPlay1234(){ // Some sound platforms will only play one sound at a time QSound::<a href="qsound.html#play">play</a>("sounds/1.wav"); QSound::<a href="qsound.html#play">play</a>("sounds/2.wav"); bucket3.play(); bucket4.play();}int main(int argc, char** argv){ <a href="qapplication.html">QApplication</a> app(argc,argv); SoundPlayer sp; app.<a href="qapplication.html#setMainWidget">setMainWidget</a>(&sp); sp.<a href="qwidget.html#setCaption">setCaption</a>("Qt Example - Sounds"); sp.<a href="qwidget.html#show">show</a>(); return app.<a href="qapplication.html#exec">exec</a>();}</pre><p> <p>See also <a href="examples.html">Examples</a>.<!-- eof --><p><address><hr><div align=center><table width=100% cellspacing=0 border=0><tr><td>Copyright © 2002 <a href="http://www.trolltech.com">Trolltech</a><td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a><td align=right><div align=right>Qt version 3.0.5</div></table></div></address></body></html>⌨️ 快捷键说明
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