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    <a href="index.html" class="qtref"><span>QtMobility Reference Documentation</span></a>
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<li>QCameraFocus</li>
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<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#public-types">Public Types</a></li>
<li class="level1"><a href="#properties">Properties</a></li>
<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="#details">Detailed Description</a></li>
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<h1 class="title">QCameraFocus Class Reference</h1>
<!-- $$$QCameraFocus-brief -->
<p>The QCameraFocus class provides interface for focus and zoom related camera settings. <a href="#details">More...</a></p>
<!-- @@@QCameraFocus -->
<pre class="cpp"> <span class="preprocessor">#include &lt;QCameraFocus&gt;</span></pre><p><b>Inherits: </b><a href="http://qt.nokia.com/doc/4.7/qobject.html">QObject</a>.</p>
<p>This class was introduced in Qt Mobility 1.1.</p>
<ul>
<li><a href="qcamerafocus-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="public-types"></a>
<h2>Public Types</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#FocusMode-enum">FocusMode</a></b> { ManualFocus, AutoFocus, ContinuousFocus, InfinityFocus, HyperfocalFocus, MacroFocus }</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> flags </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#FocusMode-enum">FocusModes</a></b></td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#FocusPointMode-enum">FocusPointMode</a></b> { FocusPointAuto, FocusPointCenter, FocusPointFaceDetection, FocusPointCustom }</td></tr>
</table>
<a name="properties"></a>
<h2>Properties</h2>
<table class="propsummary">
<tr><td class="topAlign"><ul>
<li class="fn"><b><a href="qcamerafocus.html#customFocusPoint-prop">customFocusPoint</a></b> : QPointF</li>
<li class="fn"><b><a href="qcamerafocus.html#digitalZoom-prop">digitalZoom</a></b> : const qreal</li>
<li class="fn"><b><a href="qcamerafocus.html#focusMode-prop">focusMode</a></b> : FocusMode</li>
</ul></td><td class="topAlign"><ul>
<li class="fn"><b><a href="qcamerafocus.html#focusPointMode-prop">focusPointMode</a></b> : FocusPointMode</li>
<li class="fn"><b><a href="qcamerafocus.html#focusZones-prop">focusZones</a></b> : const QCameraFocusZoneList</li>
<li class="fn"><b><a href="qcamerafocus.html#opticalZoom-prop">opticalZoom</a></b> : const qreal</li>
</ul>
</td></tr>
</table>
<ul>
<li class="fn">1 property inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#properties">QObject</a></li>
</ul>
<a name="public-functions"></a>
<h2>Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> QPointF </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#customFocusPoint-prop">customFocusPoint</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#digitalZoom-prop">digitalZoom</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> FocusMode </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#focusMode-prop">focusMode</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> FocusPointMode </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#focusPointMode-prop">focusPointMode</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QCameraFocusZoneList </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#focusZones-prop">focusZones</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#isAvailable">isAvailable</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#isFocusModeSupported">isFocusModeSupported</a></b> ( FocusMode <i>mode</i> ) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#isFocusPointModeSupported">isFocusPointModeSupported</a></b> ( FocusPointMode <i>mode</i> ) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#maximumDigitalZoom">maximumDigitalZoom</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#maximumOpticalZoom">maximumOpticalZoom</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#opticalZoom-prop">opticalZoom</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#customFocusPoint-prop">setCustomFocusPoint</a></b> ( const QPointF &amp; <i>point</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#focusMode-prop">setFocusMode</a></b> ( FocusMode <i>mode</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#focusPointMode-prop">setFocusPointMode</a></b> ( FocusPointMode <i>mode</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#zoomTo">zoomTo</a></b> ( qreal <i>optical</i>, qreal <i>digital</i> )</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="qcamerafocus.html#digitalZoomChanged">digitalZoomChanged</a></b> ( qreal <i>value</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.html#focusZonesChanged">focusZonesChanged</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcamerafocus.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="qcamerafocus.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="qcamerafocus.html#opticalZoomChanged">opticalZoomChanged</a></b> ( qreal <i>value</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>
<h3>Additional Inherited Members</h3>
<ul>
<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">7 protected functions inherited from <a href="http://qt.nokia.com/doc/4.7/qobject.html#protected-functions">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>
<!-- $$$QCameraFocus-description -->
<div class="descr">
<h2>Detailed Description</h2>
<p>The QCameraFocus class provides interface for focus and zoom related camera settings.</p>
</div>
<!-- @@@QCameraFocus -->
<div class="types">
<h2>Member Type Documentation</h2>
<!-- $$$FocusMode$$$ManualFocus$$$HyperfocalFocus$$$InfinityFocus$$$AutoFocus$$$ContinuousFocus$$$MacroFocus -->
<h3 class="flags"><a name="FocusMode-enum"></a>enum QCameraFocus::<span class="name">FocusMode</span><br/>flags QCameraFocus::<span class="name">FocusModes</span></h3>
<table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr>
<tr><td class="topAlign"><tt>QCameraFocus::ManualFocus</tt></td><td class="topAlign"><tt>0x1</tt></td><td class="topAlign">Manual or fixed focus mode.</td></tr>
<tr><td class="topAlign"><tt>QCameraFocus::AutoFocus</tt></td><td class="topAlign"><tt>0x8</tt></td><td class="topAlign">One-shot auto focus mode.</td></tr>
<tr><td class="topAlign"><tt>QCameraFocus::ContinuousFocus</tt></td><td class="topAlign"><tt>0x10</tt></td><td class="topAlign">Continuous auto focus mode.</td></tr>
<tr><td class="topAlign"><tt>QCameraFocus::InfinityFocus</tt></td><td class="topAlign"><tt>0x04</tt></td><td class="topAlign">Focus strictly to infinity.</td></tr>
<tr><td class="topAlign"><tt>QCameraFocus::HyperfocalFocus</tt></td><td class="topAlign"><tt>0x02</tt></td><td class="topAlign">Focus to hyperfocal distance, with with the maximum depth of field achieved. All objects at distances from half of this distance out to infinity will be acceptably sharp.</td></tr>
<tr><td class="topAlign"><tt>QCameraFocus::MacroFocus</tt></td><td class="topAlign"><tt>0x20</tt></td><td class="topAlign">One shot auto focus to objects close to camera.</td></tr>
</table>
<p>The FocusModes type is a typedef for <a href="qflags.html">QFlags</a>&lt;FocusMode&gt;. It stores an OR combination of FocusMode values.</p>
<!-- @@@FocusMode -->
<!-- $$$FocusPointMode$$$FocusPointAuto$$$FocusPointCenter$$$FocusPointFaceDetection$$$FocusPointCustom -->
<h3 class="fn"><a name="FocusPointMode-enum"></a>enum QCameraFocus::<span class="name">FocusPointMode</span></h3>
<table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tblval">Value</th><th class="tbldscr">Description</th></tr>
<tr><td class="topAlign"><tt>QCameraFocus::FocusPointAuto</tt></td><td class="topAlign"><tt>0</tt></td><td class="topAlign">Automatically select one or multiple focus points.</td></tr>
<tr><td class="topAlign"><tt>QCameraFocus::FocusPointCenter</tt></td><td class="topAlign"><tt>1</tt></td><td class="topAlign">Focus to the frame center.</td></tr>
<tr><td class="topAlign"><tt>QCameraFocus::FocusPointFaceDetection</tt></td><td class="topAlign"><tt>2</tt></td><td class="topAlign">Focus on faces in the frame.</td></tr>
<tr><td class="topAlign"><tt>QCameraFocus::FocusPointCustom</tt></td><td class="topAlign"><tt>3</tt></td><td class="topAlign">Focus to the custom point, defined by <a href="qcamerafocus.html#customFocusPoint-prop">QCameraFocus::customFocusPoint</a> property.</td></tr>
</table>
<!-- @@@FocusPointMode -->
</div>
<div class="prop">
<h2>Property Documentation</h2>
<!-- $$$customFocusPoint-prop$$$customFocusPoint$$$setCustomFocusPointconstQPointF& -->
<h3 class="fn"><a name="customFocusPoint-prop"></a><span class="name">customFocusPoint</span> : <span class="type"><a href="http://qt.nokia.com/doc/4.7/qpointf.html">QPointF</a></span></h3>
<p>Position of custom focus point, in relative frame coordinates: <a href="http://qt.nokia.com/doc/4.7/qpointf.html">QPointF</a>(0,0) points to the left top frame point, <a href="http://qt.nokia.com/doc/4.7/qpointf.html">QPointF</a>(0.5,0.5) points to the frame center.</p>
<p>Custom focus point is used only in <a href="qcamerafocus.html#FocusPointMode-enum">FocusPointCustom</a> focus mode.</p>
<p>This property was introduced in Qt Mobility 1.1.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> QPointF </td><td class="memItemRight bottomAlign"><span class="name"><b>customFocusPoint</b></span> () const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setCustomFocusPoint</b></span> ( const QPointF &amp; <i>point</i> )</td></tr>
</table>
<!-- @@@customFocusPoint -->
<!-- $$$digitalZoom-prop$$$digitalZoom$$$digitalZoomChangedqreal -->
<h3 class="fn"><a name="digitalZoom-prop"></a><span class="name">digitalZoom</span> : const <span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#qreal-typedef">qreal</a></span></h3>
<p>This property holds the current digital zoom value.</p>
<p>This property was introduced in Qt Mobility 1.1.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> qreal </td><td class="memItemRight bottomAlign"><span class="name"><b>digitalZoom</b></span> () const</td></tr>
</table>
<p><b>Notifier signal:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qcamerafocus.html#digitalZoomChanged">digitalZoomChanged</a></b></span> ( qreal <i>value</i> )</td></tr>
</table>
<p><b>See also </b><a href="qcamerafocus.html#opticalZoom-prop">QCameraFocus::opticalZoom</a>.</p>
<!-- @@@digitalZoom -->
<!-- $$$focusMode-prop$$$focusMode$$$setFocusModeFocusMode -->
<h3 class="fn"><a name="focusMode-prop"></a><span class="name">focusMode</span> : <span class="type"><a href="qcamerafocus.html#FocusMode-enum">FocusMode</a></span></h3>
<p>This property holds the current camera focus mode.</p>
<p>This property was introduced in Qt Mobility 1.1.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> FocusMode </td><td class="memItemRight bottomAlign"><span class="name"><b>focusMode</b></span> () const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setFocusMode</b></span> ( FocusMode <i>mode</i> )</td></tr>
</table>
<p><b>See also </b><a href="qcamerafocus.html#isFocusModeSupported">QCameraFocus::isFocusModeSupported</a>().</p>
<!-- @@@focusMode -->
<!-- $$$focusPointMode-prop$$$focusPointMode$$$setFocusPointModeFocusPointMode -->
<h3 class="fn"><a name="focusPointMode-prop"></a><span class="name">focusPointMode</span> : <span class="type"><a href="qcamerafocus.html#FocusPointMode-enum">FocusPointMode</a></span></h3>
<p>This property holds the current camera focus point selection mode.</p>
<p>This property was introduced in Qt Mobility 1.1.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> FocusPointMode </td><td class="memItemRight bottomAlign"><span class="name"><b>focusPointMode</b></span> () const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setFocusPointMode</b></span> ( FocusPointMode <i>mode</i> )</td></tr>
</table>
<p><b>See also </b><a href="qcamerafocus.html#isFocusPointModeSupported">QCameraFocus::isFocusPointModeSupported</a>().</p>
<!-- @@@focusPointMode -->
<!-- $$$focusZones-prop$$$focusZones$$$focusZonesChanged -->
<h3 class="fn"><a name="focusZones-prop"></a><span class="name">focusZones</span> : const <span class="type">QCameraFocusZoneList</span></h3>
<p>Returns the list of active focus zones.</p>
<p>If QCamera::FocusPointAuto or QCamera::FocusPointFaceDetection focus mode is selected this method returns the list of zones the camera is actually focused on.</p>
<p>The coordinates system is the same as for custom focus points: <a href="http://qt.nokia.com/doc/4.7/qpointf.html">QPointF</a>(0,0) points to the left top frame point, <a href="http://qt.nokia.com/doc/4.7/qpointf.html">QPointF</a>(0.5,0.5) points to the frame center.</p>
<p>This property was introduced in Qt Mobility 1.1.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> QCameraFocusZoneList </td><td class="memItemRight bottomAlign"><span class="name"><b>focusZones</b></span> () const</td></tr>
</table>
<p><b>Notifier signal:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qcamerafocus.html#focusZonesChanged">focusZonesChanged</a></b></span> ()</td></tr>
</table>
<!-- @@@focusZones -->
<!-- $$$opticalZoom-prop$$$opticalZoom$$$opticalZoomChangedqreal -->
<h3 class="fn"><a name="opticalZoom-prop"></a><span class="name">opticalZoom</span> : const <span class="type"><a href="http://qt.nokia.com/doc/4.7/qtglobal.html#qreal-typedef">qreal</a></span></h3>
<p>This property holds the current optical zoom value.</p>
<p>This property was introduced in Qt Mobility 1.1.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> qreal </td><td class="memItemRight bottomAlign"><span class="name"><b>opticalZoom</b></span> () const</td></tr>
</table>
<p><b>Notifier signal:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qcamerafocus.html#opticalZoomChanged">opticalZoomChanged</a></b></span> ( qreal <i>value</i> )</td></tr>
</table>
<p><b>See also </b><a href="qcamerafocus.html#digitalZoom-prop">QCameraFocus::digitalZoom</a>.</p>
<!-- @@@opticalZoom -->
</div>
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$digitalZoomChanged[overload1]$$$digitalZoomChangedqreal -->
<h3 class="fn"><a name="digitalZoomChanged"></a><span class="type">void</span> QCameraFocus::<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>value</i> )<tt> [signal]</tt></h3>
<p>Signal emitted when digital zoom value changes to new <i>value</i>.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@digitalZoomChanged -->
<!-- $$$focusZonesChanged[overload1]$$$focusZonesChanged -->
<h3 class="fn"><a name="focusZonesChanged"></a><span class="type">void</span> QCameraFocus::<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>
<!-- @@@focusZonesChanged -->
<!-- $$$isAvailable[overload1]$$$isAvailable -->
<h3 class="fn"><a name="isAvailable"></a><span class="type">bool</span> QCameraFocus::<span class="name">isAvailable</span> () const</h3>
<p>Returns true if focus related settings are supported by this camera.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@isAvailable -->
<!-- $$$isFocusModeSupported[overload1]$$$isFocusModeSupportedFocusMode -->
<h3 class="fn"><a name="isFocusModeSupported"></a><span class="type">bool</span> QCameraFocus::<span class="name">isFocusModeSupported</span> ( <span class="type"><a href="qcamerafocus.html#FocusMode-enum">FocusMode</a></span> <i>mode</i> ) const</h3>
<p>Returns true if the focus <i>mode</i> is supported by camera.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@isFocusModeSupported -->
<!-- $$$isFocusPointModeSupported[overload1]$$$isFocusPointModeSupportedFocusPointMode -->
<h3 class="fn"><a name="isFocusPointModeSupported"></a><span class="type">bool</span> QCameraFocus::<span class="name">isFocusPointModeSupported</span> ( <span class="type"><a href="qcamerafocus.html#FocusPointMode-enum">FocusPointMode</a></span> <i>mode</i> ) const</h3>
<p>Returns true if 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> QCameraFocus::<span class="name">maximumDigitalZoom</span> () const</h3>
<p>Returns the maximum digital zoom</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> QCameraFocus::<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> QCameraFocus::<span class="name">maximumOpticalZoom</span> () const</h3>
<p>Returns the maximum optical zoom</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> QCameraFocus::<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 -->
<!-- $$$opticalZoomChanged[overload1]$$$opticalZoomChangedqreal -->
<h3 class="fn"><a name="opticalZoomChanged"></a><span class="type">void</span> QCameraFocus::<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>value</i> )<tt> [signal]</tt></h3>
<p>Signal emitted when optical zoom value changes to new <i>value</i>.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@opticalZoomChanged -->
<!-- $$$zoomTo[overload1]$$$zoomToqrealqreal -->
<h3 class="fn"><a name="zoomTo"></a><span class="type">void</span> QCameraFocus::<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> )</h3>
<p>Set the camera <i>optical</i> and <i>digital</i> zoom values.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<!-- @@@zoomTo -->
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