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<li>Qt 5.5</li>
<li><a href="qtmultimedia-index.html">Qt Multimedia</a></li>
<li><a href="qtmultimedia-qmlmodule.html">QML Types</a></li>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#properties">Properties</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QtMultimedia QML Type</h1>
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<p>Provides a global object with useful functions from Qt Multimedia. <a href="#details">More...</a></p>
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<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Import Statement:</td><td class="memItemRight bottomAlign"> import QtMultimedia 5.5</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> QtMultimedia 5.4</td></tr></table></div><ul>
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<a name="properties"></a>
<h2 id="properties">Properties</h2>
<ul>
<li class="fn"><b><b><a href="qml-qtmultimedia-qtmultimedia.html#availableCameras-prop">availableCameras</a></b></b> : list<object></li>
<li class="fn"><b><b><a href="qml-qtmultimedia-qtmultimedia.html#defaultCamera-prop">defaultCamera</a></b></b> : object</li>
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<h2 id="details">Detailed Description</h2>
</p>
<p>The <code>QtMultimedia</code> object is a global object with utility functions and properties.</p>
<p>It is not instantiable; to use it, call the members of the global <code>QtMultimedia</code> object directly. For example:</p>
<pre class="qml"><span class="type"><a href="qml-qtmultimedia-camera.html">Camera</a></span> {
<span class="name">deviceId</span>: <span class="name">QtMultimedia</span>.<span class="name">defaultCamera</span>.<span class="name">deviceId</span>
}</pre>
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<h2>Property Documentation</h2>
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<div class="qmlitem"><div class="qmlproto"><div class="table"><table class="qmlname"><tr valign="top" class="odd" id="availableCameras-prop"><td class="tblQmlPropNode"><p><a name="availableCameras-prop"></a><span class="qmlreadonly">read-only</span><span class="name">availableCameras</span> : <span class="type">list</span><<span class="type">object</span>></p></td></tr></table></div></div><div class="qmldoc"><p>This property provides information about the cameras available on the system.</p>
<p>Each object in the list has the following properties:</p>
<div class="table"><table class="generic">
<tr valign="top" class="odd"><td ><code>deviceId</code></td><td >This read-only property holds the unique identifier of the camera.<p>You can choose which device to use with a <a href="qml-multimedia.html#camera">Camera</a> object by setting its <a href="qml-qtmultimedia-camera.html#deviceId-prop">deviceId</a> property to this value.</p>
</td></tr>
<tr valign="top" class="even"><td ><code>displayName</code></td><td >This read-only property holds the human-readable name of the camera. You can use this property to display the name of the camera in a user interface.</td></tr>
<tr valign="top" class="odd"><td ><code>position</code></td><td >This read-only property holds the physical position of the camera on the hardware system. Please see <a href="qml-qtmultimedia-camera.html#position-prop">Camera.position</a> for more information.</td></tr>
<tr valign="top" class="even"><td ><code>orientation</code></td><td >This read-only property holds the physical orientation of the camera sensor. Please see <a href="qml-qtmultimedia-camera.html#orientation-prop">Camera.orientation</a> for more information.</td></tr>
</table></div>
<p><b>Note: </b>This property is static; it is not updated when cameras are added or removed from the system, like USB cameras on a desktop platform.</p><p>The following example shows how to display a list of available cameras. The user can change the active camera by selecting one of the items in the list.</p>
<pre class="qml"><span class="type">Item</span> {
<span class="type"><a href="qml-qtmultimedia-camera.html">Camera</a></span> {
<span class="name">id</span>: <span class="name">camera</span>
}
<span class="type"><a href="qml-qtmultimedia-videooutput.html">VideoOutput</a></span> {
<span class="name">anchors</span>.fill: <span class="name">parent</span>
<span class="name">source</span>: <span class="name">camera</span>
}
<span class="type">ListView</span> {
<span class="name">anchors</span>.fill: <span class="name">parent</span>
<span class="name">model</span>: <span class="name">QtMultimedia</span>.<span class="name">availableCameras</span>
<span class="name">delegate</span>: <span class="name">Text</span> {
<span class="name">text</span>: <span class="name">modelData</span>.<span class="name">displayName</span>
<span class="type">MouseArea</span> {
<span class="name">anchors</span>.fill: <span class="name">parent</span>
<span class="name">onClicked</span>: <span class="name">camera</span>.<span class="name">deviceId</span> <span class="operator">=</span> <span class="name">modelData</span>.<span class="name">deviceId</span>
}
}
}
}</pre>
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<div class="qmlitem"><div class="qmlproto"><div class="table"><table class="qmlname"><tr valign="top" class="odd" id="defaultCamera-prop"><td class="tblQmlPropNode"><p><a name="defaultCamera-prop"></a><span class="qmlreadonly">read-only</span><span class="name">defaultCamera</span> : <span class="type">object</span></p></td></tr></table></div></div><div class="qmldoc"><p>The <code>defaultCamera</code> object provides information about the default camera on the system.</p>
<p>Its properties are <code>deviceId</code>, <code>displayName</code>, <code>position</code> and <code>orientation</code>. See <a href="qml-qtmultimedia-qtmultimedia.html#availableCameras-prop">availableCameras</a> for a description of each of them.</p>
<p>If there is no default camera, <code>defaultCamera.deviceId</code> will contain an empty string.</p>
<p><b>Note: </b>This property is static; it is not updated if the system's default camera changes after the application started.</p></div></div><!-- @@@defaultCamera -->
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