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<h1 class="title">BackendCapabilities Namespace</h1>
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<span class="small-subtitle">(Phonon::BackendCapabilities)<br/></span>
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<!-- $$$BackendCapabilities-brief -->
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<p>The BackendCapabilities namespace contains functions to describe the capabilities of the multimedia backend. <a href="#details">More...</a></p>
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<!-- @@@BackendCapabilities -->
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<p>This namespace was introduced in Qt 4.4.</p>
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<h2>Classes</h2>
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<table class="alignedsummary">
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<tr><td class="memItemLeft rightAlign topAlign"> class </td><td class="memItemRight bottomAlign"><b><a href="phonon-backendcapabilities-notifier.html">Notifier</a></b></td></tr>
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<h2>Functions</h2>
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<table class="alignedsummary">
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<tr><td class="memItemLeft rightAlign topAlign"> QList<EffectDescription> </td><td class="memItemRight bottomAlign"><b><a href="phonon-backendcapabilities.html#availableAudioEffects">availableAudioEffects</a></b> ()</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> QList<AudioOutputDevice> </td><td class="memItemRight bottomAlign"><b><a href="phonon-backendcapabilities.html#availableAudioOutputDevices">availableAudioOutputDevices</a></b> ()</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> QStringList </td><td class="memItemRight bottomAlign"><b><a href="phonon-backendcapabilities.html#availableMimeTypes">availableMimeTypes</a></b> ()</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="phonon-backendcapabilities.html#isMimeTypeAvailable">isMimeTypeAvailable</a></b> ( const QString & <i>mimeType</i> )</td></tr>
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<tr><td class="memItemLeft rightAlign topAlign"> Notifier * </td><td class="memItemRight bottomAlign"><b><a href="phonon-backendcapabilities.html#notifier">notifier</a></b> ()</td></tr>
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<a name="details"></a>
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<!-- $$$BackendCapabilities-description -->
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<div class="descr">
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<h2>Detailed Description</h2>
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<p>The BackendCapabilities namespace contains functions to describe the capabilities of the multimedia backend.</p>
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</div>
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<!-- @@@BackendCapabilities -->
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<div class="classes">
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<h2>Classes</h2>
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<h3> class <a href="phonon-backendcapabilities-notifier.html">Notifier</a></h3></div>
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<h2>Function Documentation</h2>
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<!-- $$$availableAudioEffects[overload1]$$$availableAudioEffects -->
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<h3 class="fn"><a name="availableAudioEffects"></a><span class="type"><a href="qlist.html">QList</a></span><<span class="type"><a href="phonon-objectdescription.html#EffectDescription-typedef">EffectDescription</a></span>> BackendCapabilities::<span class="name">availableAudioEffects</span> ()</h3>
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<p>Returns descriptions for the audio effects the backend supports.</p>
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<p>Returns A list of AudioEffectDescription objects that give a name and description for every supported audio effect.</p>
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<!-- @@@availableAudioEffects -->
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<!-- $$$availableAudioOutputDevices[overload1]$$$availableAudioOutputDevices -->
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<h3 class="fn"><a name="availableAudioOutputDevices"></a><span class="type"><a href="qlist.html">QList</a></span><<span class="type"><a href="phonon-objectdescription.html#AudioOutputDevice-typedef">AudioOutputDevice</a></span>> BackendCapabilities::<span class="name">availableAudioOutputDevices</span> ()</h3>
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<p>Returns the audio output devices the backend supports.</p>
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<p>Returns A list of <a href="phonon-objectdescription.html#AudioOutputDevice-typedef">AudioOutputDevice</a> objects that give a name and description for every supported audio output device.</p>
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<!-- @@@availableAudioOutputDevices -->
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<!-- $$$availableMimeTypes[overload1]$$$availableMimeTypes -->
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<h3 class="fn"><a name="availableMimeTypes"></a><span class="type"><a href="qstringlist.html">QStringList</a></span> BackendCapabilities::<span class="name">availableMimeTypes</span> ()</h3>
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<p>Returns a list of mime types that the Backend can decode.</p>
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<p><b>See also </b><a href="phonon-backendcapabilities.html#isMimeTypeAvailable">isMimeTypeAvailable</a>().</p>
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<!-- @@@availableMimeTypes -->
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<!-- $$$isMimeTypeAvailable[overload1]$$$isMimeTypeAvailableconstQString& -->
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<h3 class="fn"><a name="isMimeTypeAvailable"></a><span class="type">bool</span> BackendCapabilities::<span class="name">isMimeTypeAvailable</span> ( const <span class="type"><a href="qstring.html">QString</a></span> & <i>mimeType</i> )</h3>
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<p>Often all you want to know is whether one given MIME type can be decoded by the backend. Use this method in favor of <a href="phonon-backendcapabilities.html#availableMimeTypes">availableMimeTypes</a>() as it can give you a negative answer without having a backend loaded.</p>
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<p>Returns true if the given <i>mimeType</i> is supported by the backend; otherwise, returns false.</p>
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<p><b>See also </b><a href="phonon-backendcapabilities.html#availableMimeTypes">availableMimeTypes</a>().</p>
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<!-- @@@isMimeTypeAvailable -->
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<!-- $$$notifier[overload1]$$$notifier -->
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<h3 class="fn"><a name="notifier"></a><span class="type"><a href="phonon-backendcapabilities-notifier.html">Notifier</a></span> * BackendCapabilities::<span class="name">notifier</span> ()</h3>
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<p>Use this function to get a <a href="qobject.html">QObject</a> pointer to connect to the capabilitiesChanged signal.</p>
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<p>Returns a pointer to a <a href="qobject.html">QObject</a>.</p>
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<p>The capabilitiesChanged signal is emitted if the capabilities have changed. This can happen if the user has requested a backend change.</p>
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<p>To connect to this signal do the following:</p>
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<pre class="cpp"> <span class="type"><a href="qobject.html">QObject</a></span><span class="operator">::</span>connect(BackendCapabilities<span class="operator">::</span>notifier()<span class="operator">,</span> SIGNAL(capabilitiesChanged())<span class="operator">,</span> <span class="operator">.</span><span class="operator">.</span><span class="operator">.</span></pre>
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<p><b>See also </b><a href="phonon-backendcapabilities-notifier.html#capabilitiesChanged">Notifier::capabilitiesChanged</a>().</p>
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<!-- @@@notifier -->
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