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<td >Qt 5.9</td><td ><a href="qtmultimedia-index.html">Qt Multimedia</a></td><td ><a href="qtmultimedia-modules.html">C++ Classes</a></td><td >QMediaAvailabilityControl</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.5 Reference Documentation</td>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#signals">Signals</a></li>
<li class="level1"><a href="#protected-functions">Protected Functions</a></li>
<li class="level1"><a href="#macros">Macros</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QMediaAvailabilityControl Class</h1>
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<p>The <a href="qmediaavailabilitycontrol.html">QMediaAvailabilityControl</a> class supplies a control for reporting availability of a service. <a href="#details">More...</a></p>
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<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QMediaAvailabilityControl></span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += multimedia</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="qmediacontrol.html">QMediaControl</a></td></tr></table></div><ul>
<li><a href="qmediaavailabilitycontrol-members.html">List of all members, including inherited members</a></li>
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<h2 id="public-functions">Public Functions</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qmediaavailabilitycontrol.html#dtor.QMediaAvailabilityControl">~QMediaAvailabilityControl</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QMultimedia::AvailabilityStatus </td><td class="memItemRight bottomAlign"><b><a href="qmediaavailabilitycontrol.html#availability">availability</a></b>() const = 0</td></tr>
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<li class="fn">32 public functions inherited from <a href="../qtcore/qobject.html#public-functions">QObject</a></li>
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<h2 id="signals">Signals</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qmediaavailabilitycontrol.html#availabilityChanged">availabilityChanged</a></b>(QMultimedia::AvailabilityStatus <i>availability</i>)</td></tr>
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<li class="fn">2 signals inherited from <a href="../qtcore/qobject.html#signals">QObject</a></li>
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<h2 id="protected-functions">Protected Functions</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qmediaavailabilitycontrol.html#QMediaAvailabilityControl">QMediaAvailabilityControl</a></b>(QObject *<i>parent</i> = Q_NULLPTR)</td></tr>
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<li class="fn">9 protected functions inherited from <a href="../qtcore/qobject.html#protected-functions">QObject</a></li>
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<h2 id="macros">Macros</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qmediaavailabilitycontrol.html#QMediaAvailabilityControl_iid">QMediaAvailabilityControl_iid</a></b></td></tr>
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<h3>Additional Inherited Members</h3>
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<li class="fn">1 property inherited from <a href="../qtcore/qobject.html#properties">QObject</a></li>
<li class="fn">1 public slot inherited from <a href="../qtcore/qobject.html#public-slots">QObject</a></li>
<li class="fn">1 public variable inherited from <a href="../qtcore/qobject.html#public-variables">QObject</a></li>
<li class="fn">10 static public members inherited from <a href="../qtcore/qobject.html#static-public-members">QObject</a></li>
<li class="fn">2 protected variables inherited from <a href="../qtcore/qobject.html#protected-variables">QObject</a></li>
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<h2 id="details">Detailed Description</h2>
<p>The <a href="qmediaavailabilitycontrol.html">QMediaAvailabilityControl</a> class supplies a control for reporting availability of a service.</p>
<p>An instance of <a href="qmediaobject.html">QMediaObject</a> (or its derived classes) can report any changes in availability via this control.</p>
<p>The interface name of <a href="qmediaavailabilitycontrol.html">QMediaAvailabilityControl</a> is <code>org.qt-project.qt.mediaavailabilitycontrol/5.0</code> as defined in <a href="qmediaavailabilitycontrol.html#QMediaAvailabilityControl_iid">QMediaAvailabilityControl_iid</a>.</p>
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<p><b>See also </b><a href="qmediaservice.html#requestControl-1">QMediaService::requestControl</a>() and <a href="qmediaobject.html">QMediaObject</a>.</p>
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<h2>Member Function Documentation</h2>
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<h3 class="fn" id="QMediaAvailabilityControl"><a name="QMediaAvailabilityControl"></a><code>[protected] </code>QMediaAvailabilityControl::<span class="name">QMediaAvailabilityControl</span>(<span class="type"><a href="../qtcore/qobject.html#QObject">QObject</a></span> *<i>parent</i> = Q_NULLPTR)</h3>
<p>Constructs an availability control object with <i>parent</i>.</p>
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<h3 class="fn" id="dtor.QMediaAvailabilityControl"><a name="dtor.QMediaAvailabilityControl"></a>QMediaAvailabilityControl::<span class="name">~QMediaAvailabilityControl</span>()</h3>
<p>Destruct the availability control object.</p>
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<h3 class="fn" id="availability"><a name="availability"></a><code>[pure virtual] </code><span class="type"><a href="qmultimedia.html#AvailabilityStatus-enum">QMultimedia::AvailabilityStatus</a></span> QMediaAvailabilityControl::<span class="name">availability</span>() const</h3>
<p>Returns the current availability of this instance of the media service. If the availability changes at run time (for example, some other media client takes all media resources) the availabilityChanges() signal should be emitted.</p>
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<h3 class="fn" id="availabilityChanged"><a name="availabilityChanged"></a><code>[signal] </code><span class="type">void</span> QMediaAvailabilityControl::<span class="name">availabilityChanged</span>(<span class="type"><a href="qmultimedia.html#AvailabilityStatus-enum">QMultimedia::AvailabilityStatus</a></span> <i>availability</i>)</h3>
<p>Signal emitted when the current <i>availability</i> value changed.</p>
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<h2>Macro Documentation</h2>
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<h3 class="fn" id="QMediaAvailabilityControl_iid"><a name="QMediaAvailabilityControl_iid"></a><span class="name">QMediaAvailabilityControl_iid</span></h3>
<p><code>org.qt-project.qt.mediaavailabilitycontrol/5.0</code></p>
<p>Defines the interface name of the <a href="qmediaavailabilitycontrol.html">QMediaAvailabilityControl</a> class.</p>
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