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<p>The BackendCapabilities namespace contains functions to describe the capabilities of the multimedia backend. <a href="#details">More...</a></p>
<pre> #include <<a href="phonon.html">Phonon</a>></pre><p>This namespace was introduced in Qt 4.4.</p>
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<h2>Classes</h2>
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<tr><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><b><a href="phonon-backendcapabilities-notifier.html">Notifier</a></b></td></tr>
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<h2>Functions</h2>
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<tr><td class="memItemLeft" align="right" valign="top">QList<EffectDescription> </td><td class="memItemRight" valign="bottom"><b><a href="phonon-backendcapabilities.html#availableAudioEffects">availableAudioEffects</a></b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QList<AudioOutputDevice> </td><td class="memItemRight" valign="bottom"><b><a href="phonon-backendcapabilities.html#availableAudioOutputDevices">availableAudioOutputDevices</a></b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QStringList </td><td class="memItemRight" valign="bottom"><b><a href="phonon-backendcapabilities.html#availableMimeTypes">availableMimeTypes</a></b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><b><a href="phonon-backendcapabilities.html#isMimeTypeAvailable">isMimeTypeAvailable</a></b> ( const QString & <i>mimeType</i> )</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">Notifier * </td><td class="memItemRight" valign="bottom"><b><a href="phonon-backendcapabilities.html#notifier">notifier</a></b> ()</td></tr>
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<h2>Detailed Description</h2>
<p>The BackendCapabilities namespace contains functions to describe the capabilities of the multimedia backend.</p>
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<h2>Classes</h2>
<h3> class <a href="phonon-backendcapabilities-notifier.html">Notifier</a></h3><hr />
<h2>Function Documentation</h2>
<a name="//apple_ref/cpp/instm/Phonon::BackendCapabilities/availableAudioEffects"></a>
<h3 class="fn"><a name="availableAudioEffects"></a><a href="qlist.html">QList</a><<a href="phonon-objectdescription.html#EffectDescription-typedef">EffectDescription</a>> BackendCapabilities::availableAudioEffects ()</h3>
<p>Returns descriptions for the audio effects the backend supports.</p>
<p>Returns A list of AudioEffectDescription objects that give a name and description for every supported audio effect.</p>
<a name="//apple_ref/cpp/instm/Phonon::BackendCapabilities/availableAudioOutputDevices"></a>
<h3 class="fn"><a name="availableAudioOutputDevices"></a><a href="qlist.html">QList</a><<a href="phonon-objectdescription.html#AudioOutputDevice-typedef">AudioOutputDevice</a>> BackendCapabilities::availableAudioOutputDevices ()</h3>
<p>Returns the audio output devices the backend supports.</p>
<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>
<a name="//apple_ref/cpp/instm/Phonon::BackendCapabilities/availableMimeTypes"></a>
<h3 class="fn"><a name="availableMimeTypes"></a><a href="qstringlist.html">QStringList</a> BackendCapabilities::availableMimeTypes ()</h3>
<p>Returns a list of mime types that the Backend can decode.</p>
<p>See also <a href="phonon-backendcapabilities.html#isMimeTypeAvailable">isMimeTypeAvailable</a>().</p>
<a name="//apple_ref/cpp/instm/Phonon::BackendCapabilities/isMimeTypeAvailable"></a>
<h3 class="fn"><a name="isMimeTypeAvailable"></a>bool BackendCapabilities::isMimeTypeAvailable ( const <a href="qstring.html">QString</a> & <i>mimeType</i> )</h3>
<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>
<p>Returns true if the given <i>mimeType</i> is supported by the backend; otherwise, returns false.</p>
<p>See also <a href="phonon-backendcapabilities.html#availableMimeTypes">availableMimeTypes</a>().</p>
<a name="//apple_ref/cpp/instm/Phonon::BackendCapabilities/notifier"></a>
<h3 class="fn"><a name="notifier"></a><a href="phonon-backendcapabilities-notifier.html">Notifier</a> * BackendCapabilities::notifier ()</h3>
<p>Use this function to get a <a href="qobject.html">QObject</a> pointer to connect to the capabilitiesChanged signal.</p>
<p>Returns a pointer to a <a href="qobject.html">QObject</a>.</p>
<p>The capabilitiesChanged signal is emitted if the capabilities have changed. This can happen if the user has requested a backend change.</p>
<p>To connect to this signal do the following:</p>
<pre> QObject::connect(BackendCapabilities::notifier(), SIGNAL(capabilitiesChanged()), ...</pre>
<p>See also <a href="phonon-backendcapabilities-notifier.html#capabilitiesChanged">Notifier::capabilitiesChanged</a>().</p>
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