source: trunk/doc/html/sound-example.html

Last change on this file was 190, checked in by rudi, 14 years ago

reference documentation added
File size: 7.2 KB
RevLine 
[190]1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
2<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/sound/sound.doc:1 -->
3<html>
4<head>
5<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
6<title>Sound Example</title>
7<style type="text/css"><!--
8fn { margin-left: 1cm; text-indent: -1cm; }
9a:link { color: #004faf; text-decoration: none }
10a:visited { color: #672967; text-decoration: none }
11body { background: #ffffff; color: black; }
12--></style>
13</head>
14<body>
15
16<table border="0" cellpadding="0" cellspacing="0" width="100%">
17<tr bgcolor="#E5E5E5">
18<td valign=center>
19 <a href="index.html">
20<font color="#004faf">Home</font></a>
21 | <a href="classes.html">
22<font color="#004faf">All&nbsp;Classes</font></a>
23 | <a href="mainclasses.html">
24<font color="#004faf">Main&nbsp;Classes</font></a>
25 | <a href="annotated.html">
26<font color="#004faf">Annotated</font></a>
27 | <a href="groups.html">
28<font color="#004faf">Grouped&nbsp;Classes</font></a>
29 | <a href="functions.html">
30<font color="#004faf">Functions</font></a>
31</td>
32<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>
33
34
35<p>
36This example shows how easy it is to play sounds, e.g. .WAV files,
37if your machine is set up to play audio.
38<p> <hr>
39<p> Header file:
40<p> <pre>/****************************************************************************
41** $Id: sound-example.html 2051 2007-02-21 10:04:20Z chehrlic $
42**
43** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
44**
45** This file is part of an example program for Qt. This example
46** program may be used, distributed and modified without limitation.
47**
48*****************************************************************************/
49#ifndef PLAY_H
50#define PLAY_H
51
52#include "qsound.h"
53#include &lt;<a href="qmainwindow-h.html">qmainwindow.h</a>&gt;
54
55class SoundPlayer : public <a href="qmainwindow.html">QMainWindow</a> {
56 <a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>
57public:
58 SoundPlayer();
59
60public slots:
61 void doPlay1();
62 void doPlay2();
63 void doPlay3();
64 void doPlay4();
65 void doPlay34();
66 void doPlay1234();
67
68private:
69 <a href="qsound.html">QSound</a> bucket3;
70 <a href="qsound.html">QSound</a> bucket4;
71};
72
73#endif
74</pre>
75
76<p> <hr>
77<p> Implementation:
78<p> <pre>/****************************************************************************
79** $Id: sound-example.html 2051 2007-02-21 10:04:20Z chehrlic $
80**
81** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
82**
83** This file is part of an example program for Qt. This example
84** program may be used, distributed and modified without limitation.
85**
86*****************************************************************************/
87//
88// Very simple example of QSound::play(filename)
89//
90// 99% of this program is just boilerplate Qt code to put up a nice
91// window so you think something special is happening.
92//
93
94#include "sound.h"
95#include &lt;<a href="qapplication-h.html">qapplication.h</a>&gt;
96#include &lt;<a href="qmessagebox-h.html">qmessagebox.h</a>&gt;
97#include &lt;<a href="qmenubar-h.html">qmenubar.h</a>&gt;
98
99<a name="f581"></a>SoundPlayer::SoundPlayer() :
100 <a href="qmainwindow.html">QMainWindow</a>(),
101 bucket3("sounds/3.wav"),
102 bucket4("sounds/4.wav")
103{
104 if (!QSound::isAvailable()) {
105 // Bail out. Programs in which sound is not critical
106 // could just silently (hehe) ignore the lack of a server.
107 //
108<a name="x2812"></a> QMessageBox::<a href="qmessagebox.html#warning">warning</a>(this,"No Sound",
109 "&lt;p&gt;&lt;b&gt;Sorry, you are not running the Network Audio System.&lt;/b&gt;"
110 "&lt;p&gt;If you have the `au' command, run it in the background before this program. "
111 "The latest release of the Network Audio System can be obtained from:"
112 "&lt;pre&gt;\n"
113 " &amp;nbsp;\n"
114 " ftp.ncd.com:/pub/ncd/technology/src/nas\n"
115 " ftp.x.org:/contrib/audio/nas\n"
116 "&lt;/pre&gt;"
117 "&lt;p&gt;Release 1.2 of NAS is also included with the X11R6"
118 "contrib distribution."
119 "&lt;p&gt;After installing NAS, you will then need to reconfigure Qt with NAS sound support");
120 }
121
122 <a href="qpopupmenu.html">QPopupMenu</a> *file = new <a href="qpopupmenu.html">QPopupMenu</a>;
123<a name="x2810"></a> file-&gt;<a href="qmenudata.html#insertItem">insertItem</a>("Play &amp;1", this, SLOT(doPlay1()), CTRL+Key_1);
124 file-&gt;<a href="qmenudata.html#insertItem">insertItem</a>("Play &amp;2", this, SLOT(doPlay2()), CTRL+Key_2);
125 file-&gt;<a href="qmenudata.html#insertItem">insertItem</a>("Play from bucket &amp;3", this, SLOT(doPlay3()), CTRL+Key_3);
126 file-&gt;<a href="qmenudata.html#insertItem">insertItem</a>("Play from bucket &amp;4", this, SLOT(doPlay4()), CTRL+Key_4);
127<a name="x2811"></a> file-&gt;<a href="qmenudata.html#insertSeparator">insertSeparator</a>();
128 file-&gt;<a href="qmenudata.html#insertItem">insertItem</a>("Play 3 and 4 together", this, SLOT(doPlay34()));
129 file-&gt;<a href="qmenudata.html#insertItem">insertItem</a>("Play all together", this, SLOT(doPlay1234()));
130 file-&gt;<a href="qmenudata.html#insertSeparator">insertSeparator</a>();
131 file-&gt;<a href="qmenudata.html#insertItem">insertItem</a>("E&amp;xit", qApp, SLOT(<a href="qapplication.html#quit">quit</a>()));
132 <a href="qmainwindow.html#menuBar">menuBar</a>()-&gt;insertItem("&amp;File", file);
133}
134
135void <a name="f582"></a>SoundPlayer::doPlay1()
136{
137<a name="x2813"></a> QSound::<a href="qsound.html#play">play</a>("sounds/1.wav");
138}
139
140void <a name="f583"></a>SoundPlayer::doPlay2()
141{
142 QSound::<a href="qsound.html#play">play</a>("sounds/2.wav");
143}
144
145void <a name="f584"></a>SoundPlayer::doPlay3()
146{
147 bucket3.play();
148}
149
150void <a name="f585"></a>SoundPlayer::doPlay4()
151{
152 bucket4.play();
153}
154
155void <a name="f586"></a>SoundPlayer::doPlay34()
156{
157 // Some sound platforms will only play one sound at a time
158 bucket3.play();
159 bucket4.play();
160}
161
162void <a name="f587"></a>SoundPlayer::doPlay1234()
163{
164 // Some sound platforms will only play one sound at a time
165 QSound::<a href="qsound.html#play">play</a>("sounds/1.wav");
166 QSound::<a href="qsound.html#play">play</a>("sounds/2.wav");
167 bucket3.play();
168 bucket4.play();
169}
170
171int main(int argc, char** argv)
172{
173 <a href="qapplication.html">QApplication</a> app(argc,argv);
174 SoundPlayer sp;
175 app.<a href="qapplication.html#setMainWidget">setMainWidget</a>(&amp;sp);
176 sp.<a href="qwidget.html#setCaption">setCaption</a>("Qt Example - Sounds");
177 sp.<a href="qwidget.html#show">show</a>();
178 return app.<a href="qapplication.html#exec">exec</a>();
179}
180
181</pre>
182
183<p> <p>See also <a href="examples.html">Examples</a>.
184
185<!-- eof -->
186<p><address><hr><div align=center>
187<table width=100% cellspacing=0 border=0><tr>
188<td>Copyright &copy; 2007
189<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
190<td align=right><div align=right>Qt 3.3.8</div>
191</table></div></address></body>
192</html>
Note: See TracBrowser for help on using the repository browser.