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    <a href="index.html" class="qtref"><span>QtMobility Reference Documentation</span></a>
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<h3><a name="toc">Contents</a></h3>
<ul>
<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">QCameraFocusControl Class Reference</h1>
<!-- $$$QCameraFocusControl-brief -->
<p>The QCameraFocusControl class supplies control for focusing related camera parameters. <a href="#details">More...</a></p>
<!-- @@@QCameraFocusControl -->
<pre class="cpp"> <span class="preprocessor">#include &lt;QCameraFocusControl&gt;</span></pre><p><b>Inherits: </b><a href="qmediacontrol.html">QMediaControl</a>.</p>
<p>This class was introduced in Qt Mobility 1.1.</p>
<ul>
<li><a href="qcamerafocuscontrol-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="public-functions"></a>
<h2>Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#dtor.QCameraFocusControl">~QCameraFocusControl</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QPointF </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#customFocusPoint">customFocusPoint</a></b> () const = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual qreal </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#digitalZoom">digitalZoom</a></b> () const = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QCameraFocus::FocusMode </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#focusMode">focusMode</a></b> () const = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QCameraFocus::FocusPointMode </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#focusPointMode">focusPointMode</a></b> () const = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QCameraFocusZoneList </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#focusZones">focusZones</a></b> () const = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#isFocusModeSupported">isFocusModeSupported</a></b> ( QCameraFocus::FocusMode <i>mode</i> ) const = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#isFocusPointModeSupported">isFocusPointModeSupported</a></b> ( QCameraFocus::FocusPointMode <i>mode</i> ) const = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual qreal </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#maximumDigitalZoom">maximumDigitalZoom</a></b> () const = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual qreal </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#maximumOpticalZoom">maximumOpticalZoom</a></b> () const = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual qreal </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#opticalZoom">opticalZoom</a></b> () const = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#setCustomFocusPoint">setCustomFocusPoint</a></b> ( const QPointF &amp; <i>point</i> ) = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#setFocusMode">setFocusMode</a></b> ( QCameraFocus::FocusMode <i>mode</i> ) = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#setFocusPointMode">setFocusPointMode</a></b> ( QCameraFocus::FocusPointMode <i>mode</i> ) = 0</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#zoomTo">zoomTo</a></b> ( qreal <i>optical</i>, qreal <i>digital</i> ) = 0</td></tr>
</table>
<ul>
<li class="fn">29 public functions inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#public-functions">QObject</a></li>
</ul>
<a name="signals"></a>
<h2>Signals</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#digitalZoomChanged">digitalZoomChanged</a></b> ( qreal <i>zoom</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#focusZonesChanged">focusZonesChanged</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#maximumDigitalZoomChanged">maximumDigitalZoomChanged</a></b> ( qreal <i>zoom</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#maximumOpticalZoomChanged">maximumOpticalZoomChanged</a></b> ( qreal <i>zoom</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#opticalZoomChanged">opticalZoomChanged</a></b> ( qreal <i>zoom</i> )</td></tr>
</table>
<ul>
<li class="fn">1 signal inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#signals">QObject</a></li>
</ul>
<a name="protected-functions"></a>
<h2>Protected Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#QCameraFocusControl">QCameraFocusControl</a></b> ( QObject * <i>parent</i> = 0 )</td></tr>
</table>
<ul>
<li class="fn">7 protected functions inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#protected-functions">QObject</a></li>
</ul>
<a name="macros"></a>
<h2>Macros</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocuscontrol.html#QCameraFocusControl_iid">QCameraFocusControl_iid</a></b></td></tr>
</table>
<h3>Additional Inherited Members</h3>
<ul>
<li class="fn">1 property inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#properties">QObject</a></li>
<li class="fn">1 public slot inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#public-slots">QObject</a></li>
<li class="fn">1 public variable inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#public-variables">QObject</a></li>
<li class="fn">4 static public members inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#static-public-members">QObject</a></li>
<li class="fn">2 protected variables inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#protected-variables">QObject</a></li>
</ul>
<a name="details"></a>
<!-- $$$QCameraFocusControl-description -->
<div class="descr">
<h2>Detailed Description</h2>
<p>The QCameraFocusControl class supplies control for focusing related camera parameters.</p>
<p>The interface name of QCameraFocusControl is <tt>com.nokia.Qt.QCameraFocusControl/1.0</tt> as defined in <a href="qcamerafocuscontrol.html#QCameraFocusControl_iid">QCameraFocusControl_iid</a>.</p>
</div>
<p><b>See also </b><a href="qmediaservice.html#requestControl">QMediaService::requestControl</a>() and <a href="qcamera.html">QCamera</a>.</p>
<!-- @@@QCameraFocusControl -->
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QCameraFocusControl[overload1]$$$QCameraFocusControlQObject* -->
<h3 class="fn"><a name="QCameraFocusControl"></a>QCameraFocusControl::<span class="name">QCameraFocusControl</span> ( <span class="type"><a href="http://qt.nokia.com/doc/4.7/qobject.html">QObject</a></span> * <i>parent</i> = 0 )<tt> [protected]</tt></h3>
<p>Constructs a camera control object with <i>parent</i>.</p>
<!-- @@@QCameraFocusControl -->
<!-- $$$~QCameraFocusControl[overload1]$$$~QCameraFocusControl -->
<h3 class="fn"><a name="dtor.QCameraFocusControl"></a>QCameraFocusControl::<span class="name">~QCameraFocusControl</span> ()</h3>
<p>Destruct the camera control object.</p>
<!-- @@@~QCameraFocusControl -->
<!-- $$$customFocusPoint[overload1]$$$customFocusPoint -->
<h3 class="fn"><a name="customFocusPoint"></a><span class="type"><a href="http://qt.nokia.com/doc/4.7/qpointf.html">QPointF</a></span> QCameraFocusControl::<span class="name">customFocusPoint</span> () const<tt> [pure virtual]</tt></h3>
<p>Return the position of custom focus point, in relative frame coordinates: <a href="http://qt.nokia.com/doc/4.7/qpointf.html">QPointF</a>(0,0) points to the left top frame point, <a href="http://qt.nokia.com/doc/4.7/qpointf.html">QPointF</a>(0.5,0.5) points to the frame center.</p>
<p>Custom focus point is used only in FocusPointCustom focus mode.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<p><b>See also </b><a href="qcamerafocuscontrol.html#setCustomFocusPoint">setCustomFocusPoint</a>().</p>
<!-- @@@customFocusPoint -->
<!-- $$$digitalZoom[overload1]$$$digitalZoom -->
<h3 class="fn"><a name="digitalZoom"></a><span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#qreal-typedef">qreal</a></span> QCameraFocusControl::<span class="name">digitalZoom</span> () const<tt> [pure virtual]</tt></h3>
<p>Return the current digital zoom value.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@digitalZoom -->
<!-- $$$digitalZoomChanged[overload1]$$$digitalZoomChangedqreal -->
<h3 class="fn"><a name="digitalZoomChanged"></a><span class="type">void</span> QCameraFocusControl::<span class="name">digitalZoomChanged</span> ( <span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#qreal-typedef">qreal</a></span> <i>zoom</i> )<tt> [signal]</tt></h3>
<p>Signal emitted when the digital <i>zoom</i> value changed.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@digitalZoomChanged -->
<!-- $$$focusMode[overload1]$$$focusMode -->
<h3 class="fn"><a name="focusMode"></a><span class="type"><a href="qcamerafocus.html#FocusMode-enum">QCameraFocus::FocusMode</a></span> QCameraFocusControl::<span class="name">focusMode</span> () const<tt> [pure virtual]</tt></h3>
<p>Returns the focus mode being used.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<p><b>See also </b><a href="qcamerafocuscontrol.html#setFocusMode">setFocusMode</a>().</p>
<!-- @@@focusMode -->
<!-- $$$focusPointMode[overload1]$$$focusPointMode -->
<h3 class="fn"><a name="focusPointMode"></a><span class="type"><a href="qcamerafocus.html#FocusPointMode-enum">QCameraFocus::FocusPointMode</a></span> QCameraFocusControl::<span class="name">focusPointMode</span> () const<tt> [pure virtual]</tt></h3>
<p>Returns the camera focus point selection mode.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<p><b>See also </b><a href="qcamerafocuscontrol.html#setFocusPointMode">setFocusPointMode</a>().</p>
<!-- @@@focusPointMode -->
<!-- $$$focusZones[overload1]$$$focusZones -->
<h3 class="fn"><a name="focusZones"></a><span class="type">QCameraFocusZoneList</span> QCameraFocusControl::<span class="name">focusZones</span> () const<tt> [pure virtual]</tt></h3>
<p>Returns the list of zones, the camera is using for focusing or focused on.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@focusZones -->
<!-- $$$focusZonesChanged[overload1]$$$focusZonesChanged -->
<h3 class="fn"><a name="focusZonesChanged"></a><span class="type">void</span> QCameraFocusControl::<span class="name">focusZonesChanged</span> ()<tt> [signal]</tt></h3>
<p>Signal is emitted when the set of zones, camera focused on is changed.</p>
<p>Usually the zones list is changed when the camera is focused.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<p><b>See also </b><a href="qcamerafocuscontrol.html#focusZones">QCameraFocusControl::focusZones</a>().</p>
<!-- @@@focusZonesChanged -->
<!-- $$$isFocusModeSupported[overload1]$$$isFocusModeSupportedQCameraFocus::FocusMode -->
<h3 class="fn"><a name="isFocusModeSupported"></a><span class="type">bool</span> QCameraFocusControl::<span class="name">isFocusModeSupported</span> ( <span class="type"><a href="qcamerafocus.html#FocusMode-enum">QCameraFocus::FocusMode</a></span> <i>mode</i> ) const<tt> [pure virtual]</tt></h3>
<p>Returns true if focus <i>mode</i> is supported.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@isFocusModeSupported -->
<!-- $$$isFocusPointModeSupported[overload1]$$$isFocusPointModeSupportedQCameraFocus::FocusPointMode -->
<h3 class="fn"><a name="isFocusPointModeSupported"></a><span class="type">bool</span> QCameraFocusControl::<span class="name">isFocusPointModeSupported</span> ( <span class="type"><a href="qcamerafocus.html#FocusPointMode-enum">QCameraFocus::FocusPointMode</a></span> <i>mode</i> ) const<tt> [pure virtual]</tt></h3>
<p>Returns true if the camera focus point <i>mode</i> is supported.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@isFocusPointModeSupported -->
<!-- $$$maximumDigitalZoom[overload1]$$$maximumDigitalZoom -->
<h3 class="fn"><a name="maximumDigitalZoom"></a><span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#qreal-typedef">qreal</a></span> QCameraFocusControl::<span class="name">maximumDigitalZoom</span> () const<tt> [pure virtual]</tt></h3>
<p>Returns the maximum digital zoom value, or 1.0 if digital zoom is not supported.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@maximumDigitalZoom -->
<!-- $$$maximumDigitalZoomChanged[overload1]$$$maximumDigitalZoomChangedqreal -->
<h3 class="fn"><a name="maximumDigitalZoomChanged"></a><span class="type">void</span> QCameraFocusControl::<span class="name">maximumDigitalZoomChanged</span> ( <span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#qreal-typedef">qreal</a></span> <i>zoom</i> )<tt> [signal]</tt></h3>
<p>Signal emitted when the maximum supported digital <i>zoom</i> value changed.</p>
<p>The maximum supported zoom value can depend on other camera settings, like capture mode or resolution.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@maximumDigitalZoomChanged -->
<!-- $$$maximumOpticalZoom[overload1]$$$maximumOpticalZoom -->
<h3 class="fn"><a name="maximumOpticalZoom"></a><span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#qreal-typedef">qreal</a></span> QCameraFocusControl::<span class="name">maximumOpticalZoom</span> () const<tt> [pure virtual]</tt></h3>
<p>Returns the maximum optical zoom value, or 1.0 if optical zoom is not supported.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@maximumOpticalZoom -->
<!-- $$$maximumOpticalZoomChanged[overload1]$$$maximumOpticalZoomChangedqreal -->
<h3 class="fn"><a name="maximumOpticalZoomChanged"></a><span class="type">void</span> QCameraFocusControl::<span class="name">maximumOpticalZoomChanged</span> ( <span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#qreal-typedef">qreal</a></span> <i>zoom</i> )<tt> [signal]</tt></h3>
<p>Signal emitted when the maximum supported optical <i>zoom</i> value changed.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@maximumOpticalZoomChanged -->
<!-- $$$opticalZoom[overload1]$$$opticalZoom -->
<h3 class="fn"><a name="opticalZoom"></a><span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#qreal-typedef">qreal</a></span> QCameraFocusControl::<span class="name">opticalZoom</span> () const<tt> [pure virtual]</tt></h3>
<p>Return the current optical zoom value.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@opticalZoom -->
<!-- $$$opticalZoomChanged[overload1]$$$opticalZoomChangedqreal -->
<h3 class="fn"><a name="opticalZoomChanged"></a><span class="type">void</span> QCameraFocusControl::<span class="name">opticalZoomChanged</span> ( <span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#qreal-typedef">qreal</a></span> <i>zoom</i> )<tt> [signal]</tt></h3>
<p>Signal emitted when the optical <i>zoom</i> value changed.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@opticalZoomChanged -->
<!-- $$$setCustomFocusPoint[overload1]$$$setCustomFocusPointconstQPointF& -->
<h3 class="fn"><a name="setCustomFocusPoint"></a><span class="type">void</span> QCameraFocusControl::<span class="name">setCustomFocusPoint</span> ( const <span class="type"><a href="http://qt.nokia.com/doc/4.7/qpointf.html">QPointF</a></span> &amp; <i>point</i> )<tt> [pure virtual]</tt></h3>
<p>Sets the custom focus <i>point</i>.</p>
<p>If camera supports fixed set of focus points, it should use the nearest supported focus point, and return the actual focus point with <a href="qcamerafocuscontrol.html#focusZones">QCameraFocusControl::focusZones</a>().</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<p><b>See also </b><a href="qcamerafocuscontrol.html#customFocusPoint">QCameraFocusControl::customFocusPoint</a>() and <a href="qcamerafocuscontrol.html#focusZones">QCameraFocusControl::focusZones</a>().</p>
<!-- @@@setCustomFocusPoint -->
<!-- $$$setFocusMode[overload1]$$$setFocusModeQCameraFocus::FocusMode -->
<h3 class="fn"><a name="setFocusMode"></a><span class="type">void</span> QCameraFocusControl::<span class="name">setFocusMode</span> ( <span class="type"><a href="qcamerafocus.html#FocusMode-enum">QCameraFocus::FocusMode</a></span> <i>mode</i> )<tt> [pure virtual]</tt></h3>
<p>Set the focus mode to <i>mode</i>.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<p><b>See also </b><a href="qcamerafocuscontrol.html#focusMode">focusMode</a>().</p>
<!-- @@@setFocusMode -->
<!-- $$$setFocusPointMode[overload1]$$$setFocusPointModeQCameraFocus::FocusPointMode -->
<h3 class="fn"><a name="setFocusPointMode"></a><span class="type">void</span> QCameraFocusControl::<span class="name">setFocusPointMode</span> ( <span class="type"><a href="qcamerafocus.html#FocusPointMode-enum">QCameraFocus::FocusPointMode</a></span> <i>mode</i> )<tt> [pure virtual]</tt></h3>
<p>Sets the camera focus point selection <i>mode</i>.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<p><b>See also </b><a href="qcamerafocuscontrol.html#focusPointMode">focusPointMode</a>().</p>
<!-- @@@setFocusPointMode -->
<!-- $$$zoomTo[overload1]$$$zoomToqrealqreal -->
<h3 class="fn"><a name="zoomTo"></a><span class="type">void</span> QCameraFocusControl::<span class="name">zoomTo</span> ( <span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#qreal-typedef">qreal</a></span> <i>optical</i>, <span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#qreal-typedef">qreal</a></span> <i>digital</i> )<tt> [pure virtual]</tt></h3>
<p>Sets <i>optical</i> and <i>digital</i> zoom values.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@zoomTo -->
</div>
<div class="macros">
<h2>Macro Documentation</h2>
<!-- $$$QCameraFocusControl_iid[overload1]$$$QCameraFocusControl_iid -->
<h3 class="fn"><a name="QCameraFocusControl_iid"></a><span class="name">QCameraFocusControl_iid</span></h3>
<p><tt>com.nokia.Qt.QCameraFocusControl/1.0</tt></p>
<p>Defines the interface name of the <a href="qcamerafocuscontrol.html">QCameraFocusControl</a> class.</p>
<!-- @@@QCameraFocusControl_iid -->
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