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| author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
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| committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
| commit | bd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch) | |
| tree | 7a520322212d48ebcb9fbe1087e7fca28b76185c /doc/html/qsound.html | |
| download | qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip | |
Add Qt3 development HEAD version
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diff --git a/doc/html/qsound.html b/doc/html/qsound.html new file mode 100644 index 0000000..fa9c58a --- /dev/null +++ b/doc/html/qsound.html @@ -0,0 +1,180 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> +<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/kernel/qsound.cpp:97 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>QSound Class</title> +<style type="text/css"><!-- +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>QSound Class Reference</h1> + +<p>The QSound class provides access to the platform audio facilities. +<a href="#details">More...</a> +<p><tt>#include <<a href="qsound-h.html">qsound.h</a>></tt> +<p>Inherits <a href="qobject.html">QObject</a>. +<p><a href="qsound-members.html">List of all member functions.</a> +<h2>Public Members</h2> +<ul> +<li class=fn><a href="#QSound"><b>QSound</b></a> ( const QString & filename, QObject * parent = 0, const char * name = 0 )</li> +<li class=fn><a href="#~QSound"><b>~QSound</b></a> ()</li> +<li class=fn>int <a href="#loops"><b>loops</b></a> () const</li> +<li class=fn>int <a href="#loopsRemaining"><b>loopsRemaining</b></a> () const</li> +<li class=fn>void <a href="#setLoops"><b>setLoops</b></a> ( int l )</li> +<li class=fn>QString <a href="#fileName"><b>fileName</b></a> () const</li> +<li class=fn>bool <a href="#isFinished"><b>isFinished</b></a> () const</li> +</ul> +<h2>Public Slots</h2> +<ul> +<li class=fn>void <a href="#play-2"><b>play</b></a> ()</li> +<li class=fn>void <a href="#stop"><b>stop</b></a> ()</li> +</ul> +<h2>Static Public Members</h2> +<ul> +<li class=fn>bool <a href="#isAvailable"><b>isAvailable</b></a> ()</li> +<li class=fn>void <a href="#play"><b>play</b></a> ( const QString & filename )</li> +<li class=fn>bool <a href="#available"><b>available</b></a> ()</li> +</ul> +<hr><a name="details"></a><h2>Detailed Description</h2> + + +The QSound class provides access to the platform audio facilities. +<p> + +<p> Qt provides the most commonly required audio operation in GUI +applications: asynchronously playing a sound file. This is most +easily accomplished with a single call: +<pre> + QSound::<a href="#play">play</a>("mysounds/bells.wav"); + </pre> + +<p> A second API is provided in which a QSound object is created from +a sound file and is played later: +<pre> + QSound bells("mysounds/bells.wav"); + + bells.<a href="#play">play</a>(); + </pre> + +<p> Sounds played using the second model may use more memory but play +more immediately than sounds played using the first model, +depending on the underlying platform audio facilities. +<p> On Microsoft Windows the underlying multimedia system is used; +only WAVE format sound files are supported. +<p> On X11 the <a href="ftp://ftp.x.org/contrib/audio/nas/">Network Audio + System</a> is used if available, otherwise all operations work +silently. NAS supports WAVE and AU files. +<p> On Macintosh, ironically, we use QT (<a href="http://quicktime.apple.com">QuickTime</a>) for sound, this +means all QuickTime formats are supported by Qt/Mac. +<p> On Qt/Embedded, a built-in mixing sound server is used, which +accesses <tt>/dev/dsp</tt> directly. Only the WAVE format is supported. +<p> The availability of sound can be tested with +<a href="#isAvailable">QSound::isAvailable</a>(). +<p>See also <a href="multimedia.html">Multimedia Classes</a>. + +<hr><h2>Member Function Documentation</h2> +<h3 class=fn><a name="QSound"></a>QSound::QSound ( const <a href="qstring.html">QString</a> & filename, <a href="qobject.html">QObject</a> * parent = 0, const char * name = 0 ) +</h3> +Constructs a QSound that can quickly play the sound in a file +named <em>filename</em>. +<p> This may use more memory than the static <tt>play</tt> function. +<p> The <em>parent</em> and <em>name</em> arguments (default 0) are passed on to +the <a href="qobject.html">QObject</a> constructor. + +<h3 class=fn><a name="~QSound"></a>QSound::~QSound () +</h3> +Destroys the sound object. If the sound is not finished playing <a href="#stop">stop</a>() is called on it. +<p> <p>See also <a href="#stop">stop</a>() and <a href="#isFinished">isFinished</a>(). + +<h3 class=fn>bool <a name="available"></a>QSound::available ()<tt> [static]</tt> +</h3> + +<p> Returns TRUE if sound support is available; otherwise returns FALSE. + +<h3 class=fn><a href="qstring.html">QString</a> <a name="fileName"></a>QSound::fileName () const +</h3> +Returns the filename associated with the sound. + +<h3 class=fn>bool <a name="isAvailable"></a>QSound::isAvailable ()<tt> [static]</tt> +</h3> +Returns TRUE if sound facilities exist on the platform; otherwise +returns FALSE. An application may choose either to notify the user +if sound is crucial to the application or to operate silently +without bothering the user. +<p> If no sound is available, all QSound operations work silently and +quickly. + +<h3 class=fn>bool <a name="isFinished"></a>QSound::isFinished () const +</h3> +Returns TRUE if the sound has finished playing; otherwise returns FALSE. +<p> <b>Warning:</b> On Windows this function always returns TRUE for unlooped sounds. + +<h3 class=fn>int <a name="loops"></a>QSound::loops () const +</h3> +Returns the number of times the sound will play. + +<h3 class=fn>int <a name="loopsRemaining"></a>QSound::loopsRemaining () const +</h3> +Returns the number of times the sound will loop. This value +decreases each time the sound loops. + +<h3 class=fn>void <a name="play"></a>QSound::play ( const <a href="qstring.html">QString</a> & filename )<tt> [static]</tt> +</h3> +Plays the sound in a file called <em>filename</em>. + +<p>Example: <a href="sound-example.html#x2813">sound/sound.cpp</a>. +<h3 class=fn>void <a name="play-2"></a>QSound::play ()<tt> [slot]</tt> +</h3> +This is an overloaded member function, provided for convenience. It behaves essentially like the above function. +<p> Starts the sound playing. The function returns immediately. +Depending on the platform audio facilities, other sounds may stop +or may be mixed with the new sound. +<p> The sound can be played again at any time, possibly mixing or +replacing previous plays of the sound. + +<h3 class=fn>void <a name="setLoops"></a>QSound::setLoops ( int l ) +</h3> +Sets the sound to repeat <em>l</em> times when it is played. Passing the +value -1 will cause the sound to loop indefinitely. +<p> <p>See also <a href="#loops">loops</a>(). + +<h3 class=fn>void <a name="stop"></a>QSound::stop ()<tt> [slot]</tt> +</h3> +Stops the sound playing. +<p> On Windows the current loop will finish if a sound is played +in a loop. +<p> <p>See also <a href="#play">play</a>(). + +<!-- eof --> +<hr><p> +This file is part of the <a href="index.html">Qt toolkit</a>. +Copyright © 1995-2007 +<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center> +<table width=100% cellspacing=0 border=0><tr> +<td>Copyright © 2007 +<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> +<td align=right><div align=right>Qt 3.3.8</div> +</table></div></address></body> +</html> |