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<title>QCameraExposure Class | QtMultimedia 5.2</title>
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<li>Qt 5.2</li>
<li><a href="qtmultimedia-index.html">Qt Multimedia</a></li>
<li><a href="qtmultimedia-module.html">C++ Classes</a></li>
<li>QCameraExposure</li>
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Qt 5.2.1 Reference Documentation</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="#public-slots">Public Slots</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">QCameraExposure Class</h1>
<!-- $$$QCameraExposure-brief -->
<p>The QCameraExposure class provides interface for exposure related camera settings. <a href="#details">More...</a></p>
<!-- @@@QCameraExposure -->
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> </b><tt><span class="preprocessor">#include <QCameraExposure></span>
</tt></td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> <tt>QT += multimedia</tt></td></tr></table><ul>
<li><a href="qcameraexposure-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="qcameraexposure.html#ExposureMode-enum">ExposureMode</a></b> { ExposureAuto, ExposureManual, ExposurePortrait, ExposureNight, ..., ExposureModeVendor }</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#FlashMode-enum">FlashMode</a></b> { FlashAuto, FlashOff, FlashOn, FlashRedEyeReduction, ..., FlashManual }</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> flags </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#FlashMode-enum">FlashModes</a></b></td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#MeteringMode-enum">MeteringMode</a></b> { MeteringMatrix, MeteringAverage, MeteringSpot }</td></tr>
</table>
<a name="properties"></a>
<h2>Properties</h2>
<table class="propsummary">
<tr><td class="topAlign"><ul>
<li class="fn"><b><a href="qcameraexposure.html#aperture-prop">aperture</a></b> : const qreal</li>
<li class="fn"><b><a href="qcameraexposure.html#exposureCompensation-prop">exposureCompensation</a></b> : qreal</li>
<li class="fn"><b><a href="qcameraexposure.html#exposureMode-prop">exposureMode</a></b> : QCameraExposure::ExposureMode</li>
<li class="fn"><b><a href="qcameraexposure.html#flashMode-prop">flashMode</a></b> : QCameraExposure::FlashModes</li>
</ul></td><td class="topAlign"><ul>
<li class="fn"><b><a href="qcameraexposure.html#flashReady-prop">flashReady</a></b> : const bool</li>
<li class="fn"><b><a href="qcameraexposure.html#isoSensitivity-prop">isoSensitivity</a></b> : const int</li>
<li class="fn"><b><a href="qcameraexposure.html#meteringMode-prop">meteringMode</a></b> : QCameraExposure::MeteringMode</li>
<li class="fn"><b><a href="qcameraexposure.html#shutterSpeed-prop">shutterSpeed</a></b> : const qreal</li>
</ul>
</td></tr>
</table>
<a name="public-functions"></a>
<h2>Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#aperture-prop">aperture</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#exposureCompensation-prop">exposureCompensation</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> ExposureMode </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#exposureMode-prop">exposureMode</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> FlashModes </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#flashMode-prop">flashMode</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#isAvailable">isAvailable</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#isExposureModeSupported">isExposureModeSupported</a></b>(ExposureMode<i> mode</i>) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#isFlashModeSupported">isFlashModeSupported</a></b>(FlashModes<i> mode</i>) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#flashReady-prop">isFlashReady</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#isMeteringModeSupported">isMeteringModeSupported</a></b>(MeteringMode<i> mode</i>) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#isoSensitivity-prop">isoSensitivity</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> MeteringMode </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#meteringMode-prop">meteringMode</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#requestedAperture">requestedAperture</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#requestedIsoSensitivity">requestedIsoSensitivity</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#requestedShutterSpeed">requestedShutterSpeed</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#setSpotMeteringPoint">setSpotMeteringPoint</a></b>(const QPointF &<i> point</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#shutterSpeed-prop">shutterSpeed</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QPointF </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#spotMeteringPoint">spotMeteringPoint</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QList<qreal> </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#supportedApertures">supportedApertures</a></b>(bool *<i> continuous</i> = 0) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QList<int> </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#supportedIsoSensitivities">supportedIsoSensitivities</a></b>(bool *<i> continuous</i> = 0) const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QList<qreal> </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#supportedShutterSpeeds">supportedShutterSpeeds</a></b>(bool *<i> continuous</i> = 0) const</td></tr>
</table>
<a name="public-slots"></a>
<h2>Public Slots</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#setAutoAperture">setAutoAperture</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#setAutoIsoSensitivity">setAutoIsoSensitivity</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#setAutoShutterSpeed">setAutoShutterSpeed</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#exposureCompensation-prop">setExposureCompensation</a></b>(qreal<i> ev</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#exposureMode-prop">setExposureMode</a></b>(ExposureMode<i> mode</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#flashMode-prop">setFlashMode</a></b>(FlashModes<i> mode</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#setManualAperture">setManualAperture</a></b>(qreal<i> aperture</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#setManualIsoSensitivity">setManualIsoSensitivity</a></b>(int<i> iso</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#setManualShutterSpeed">setManualShutterSpeed</a></b>(qreal<i> seconds</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#meteringMode-prop">setMeteringMode</a></b>(MeteringMode<i> mode</i>)</td></tr>
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<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="qcameraexposure.html#aperture-prop">apertureChanged</a></b>(qreal<i> value</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#apertureRangeChanged">apertureRangeChanged</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#exposureCompensation-prop">exposureCompensationChanged</a></b>(qreal<i> value</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#flashReady-prop">flashReady</a></b>(bool<i> ready</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#isoSensitivity-prop">isoSensitivityChanged</a></b>(int<i> value</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#shutterSpeed-prop">shutterSpeedChanged</a></b>(qreal<i> speed</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#shutterSpeedRangeChanged">shutterSpeedRangeChanged</a></b>()</td></tr>
</table>
<a name="details"></a>
<!-- $$$QCameraExposure-description -->
<div class="descr">
<h2>Detailed Description</h2>
<p>The QCameraExposure class provides interface for exposure related camera settings.</p>
</div>
<!-- @@@QCameraExposure -->
<div class="types">
<h2>Member Type Documentation</h2>
<!-- $$$ExposureMode$$$ExposureAuto$$$ExposureManual$$$ExposurePortrait$$$ExposureNight$$$ExposureBacklight$$$ExposureSpotlight$$$ExposureSports$$$ExposureSnow$$$ExposureBeach$$$ExposureLargeAperture$$$ExposureSmallAperture$$$ExposureModeVendor -->
<h3 class="fn"><a name="ExposureMode-enum"></a>enum QCameraExposure::<span class="name">ExposureMode</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>QCameraExposure::ExposureAuto</tt></td><td class="topAlign"><tt>0</tt></td><td class="topAlign">Automatic mode.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::ExposureManual</tt></td><td class="topAlign"><tt>1</tt></td><td class="topAlign">Manual mode.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::ExposurePortrait</tt></td><td class="topAlign"><tt>2</tt></td><td class="topAlign">Portrait exposure mode.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::ExposureNight</tt></td><td class="topAlign"><tt>3</tt></td><td class="topAlign">Night mode.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::ExposureBacklight</tt></td><td class="topAlign"><tt>4</tt></td><td class="topAlign">Backlight exposure mode.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::ExposureSpotlight</tt></td><td class="topAlign"><tt>5</tt></td><td class="topAlign">Spotlight exposure mode.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::ExposureSports</tt></td><td class="topAlign"><tt>6</tt></td><td class="topAlign">Spots exposure mode.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::ExposureSnow</tt></td><td class="topAlign"><tt>7</tt></td><td class="topAlign">Snow exposure mode.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::ExposureBeach</tt></td><td class="topAlign"><tt>8</tt></td><td class="topAlign">Beach exposure mode.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::ExposureLargeAperture</tt></td><td class="topAlign"><tt>9</tt></td><td class="topAlign">Use larger aperture with small depth of field.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::ExposureSmallAperture</tt></td><td class="topAlign"><tt>10</tt></td><td class="topAlign">Use smaller aperture.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::ExposureModeVendor</tt></td><td class="topAlign"><tt>1000</tt></td><td class="topAlign">The base value for device specific exposure modes.</td></tr>
</table>
<!-- @@@ExposureMode -->
<!-- $$$FlashMode$$$FlashAuto$$$FlashOff$$$FlashOn$$$FlashRedEyeReduction$$$FlashFill$$$FlashTorch$$$FlashVideoLight$$$FlashSlowSyncFrontCurtain$$$FlashSlowSyncRearCurtain$$$FlashManual -->
<h3 class="flags"><a name="FlashMode-enum"></a>enum QCameraExposure::<span class="name">FlashMode</span><br/>flags QCameraExposure::<span class="name">FlashModes</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>QCameraExposure::FlashAuto</tt></td><td class="topAlign"><tt>0x1</tt></td><td class="topAlign">Automatic flash.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::FlashOff</tt></td><td class="topAlign"><tt>0x2</tt></td><td class="topAlign">Flash is Off.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::FlashOn</tt></td><td class="topAlign"><tt>0x4</tt></td><td class="topAlign">Flash is On.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::FlashRedEyeReduction</tt></td><td class="topAlign"><tt>0x8</tt></td><td class="topAlign">Red eye reduction flash.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::FlashFill</tt></td><td class="topAlign"><tt>0x10</tt></td><td class="topAlign">Use flash to fillin shadows.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::FlashTorch</tt></td><td class="topAlign"><tt>0x20</tt></td><td class="topAlign">Constant light source. If supported, torch can be enabled without loading the camera.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::FlashVideoLight</tt></td><td class="topAlign"><tt>0x40</tt></td><td class="topAlign">Constant light source, useful for video capture. The light is turned on only while camera is active.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::FlashSlowSyncFrontCurtain</tt></td><td class="topAlign"><tt>0x80</tt></td><td class="topAlign">Use the flash in conjunction with a slow shutter speed. This mode allows better exposure of distant objects and/or motion blur effect.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::FlashSlowSyncRearCurtain</tt></td><td class="topAlign"><tt>0x100</tt></td><td class="topAlign">The similar mode to FlashSlowSyncFrontCurtain but flash is fired at the end of exposure.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::FlashManual</tt></td><td class="topAlign"><tt>0x200</tt></td><td class="topAlign">Flash power is manualy set.</td></tr>
</table>
<p>The FlashModes type is a typedef for <a href="">QFlags</a><FlashMode>. It stores an OR combination of FlashMode values.</p>
<!-- @@@FlashMode -->
<!-- $$$MeteringMode$$$MeteringMatrix$$$MeteringAverage$$$MeteringSpot -->
<h3 class="fn"><a name="MeteringMode-enum"></a>enum QCameraExposure::<span class="name">MeteringMode</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>QCameraExposure::MeteringMatrix</tt></td><td class="topAlign"><tt>1</tt></td><td class="topAlign">Matrix metering mode.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::MeteringAverage</tt></td><td class="topAlign"><tt>2</tt></td><td class="topAlign">Center weighted average metering mode.</td></tr>
<tr><td class="topAlign"><tt>QCameraExposure::MeteringSpot</tt></td><td class="topAlign"><tt>3</tt></td><td class="topAlign">Spot metering mode.</td></tr>
</table>
<!-- @@@MeteringMode -->
</div>
<div class="prop">
<h2>Property Documentation</h2>
<!-- $$$aperture-prop$$$aperture$$$apertureChangedqreal -->
<h3 class="fn"><a name="aperture-prop"></a><span class="name">aperture</span> : const <span class="type">qreal</span></h3>
<p>This property holds lens aperture is specified as an F number, the ratio of the focal length to effective aperture diameter.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> qreal </td><td class="memItemRight bottomAlign"><span class="name"><b>aperture</b></span>() const</td></tr>
</table>
<p><b>Notifier signal:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>apertureChanged</b></span>(qreal<i> value</i>)</td></tr>
</table>
<p><b>See also </b><a href="qcameraexposure.html#supportedApertures">supportedApertures</a>(), <a href="qcameraexposure.html#setAutoAperture">setAutoAperture</a>(), <a href="qcameraexposure.html#setManualAperture">setManualAperture</a>(), and <a href="qcameraexposure.html#requestedAperture">requestedAperture</a>().</p>
<!-- @@@aperture -->
<!-- $$$exposureCompensation-prop$$$exposureCompensation$$$setExposureCompensationqreal$$$exposureCompensationChangedqreal -->
<h3 class="fn"><a name="exposureCompensation-prop"></a><span class="name">exposureCompensation</span> : <span class="type">qreal</span></h3>
<p>This property holds exposure compensation in EV units.</p>
<p>Exposure compensation property allows to adjust the automatically calculated exposure.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> qreal </td><td class="memItemRight bottomAlign"><span class="name"><b>exposureCompensation</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setExposureCompensation</b></span>(qreal<i> ev</i>)</td></tr>
</table>
<p><b>Notifier signal:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>exposureCompensationChanged</b></span>(qreal<i> value</i>)</td></tr>
</table>
<!-- @@@exposureCompensation -->
<!-- $$$exposureMode-prop$$$exposureMode$$$setExposureModeExposureMode -->
<h3 class="fn"><a name="exposureMode-prop"></a><span class="name">exposureMode</span> : <span class="type"><a href="qcameraexposure.html#ExposureMode-enum">QCameraExposure::ExposureMode</a></span></h3>
<p>This property holds the exposure mode being used.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> ExposureMode </td><td class="memItemRight bottomAlign"><span class="name"><b>exposureMode</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setExposureMode</b></span>(ExposureMode<i> mode</i>)</td></tr>
</table>
<p><b>See also </b><a href="qcameraexposure.html#isExposureModeSupported">QCameraExposure::isExposureModeSupported</a>().</p>
<!-- @@@exposureMode -->
<!-- $$$flashMode-prop$$$flashMode$$$setFlashModeFlashModes -->
<h3 class="fn"><a name="flashMode-prop"></a><span class="name">flashMode</span> : <span class="type"><a href="qcameraexposure.html#FlashMode-enum">QCameraExposure::FlashModes</a></span></h3>
<p>This property holds the flash mode being used.</p>
<p>Usually the single <a href="qcameraexposure.html#FlashMode-enum">QCameraExposure::FlashMode</a> flag is used, but some non conflicting flags combination are also allowed, like <a href="qcameraexposure.html#FlashMode-enum">QCameraExposure::FlashManual</a> | <a href="qcameraexposure.html#FlashMode-enum">QCameraExposure::FlashSlowSyncRearCurtain</a>.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> FlashModes </td><td class="memItemRight bottomAlign"><span class="name"><b>flashMode</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setFlashMode</b></span>(FlashModes<i> mode</i>)</td></tr>
</table>
<p><b>See also </b><a href="qcameraexposure.html#isFlashModeSupported">QCameraExposure::isFlashModeSupported</a>() and <a href="qcameraexposure.html#flashReady-prop">QCameraExposure::isFlashReady</a>().</p>
<!-- @@@flashMode -->
<!-- $$$flashReady-prop$$$isFlashReady$$$flashReadybool -->
<h3 class="fn"><a name="flashReady-prop"></a><span class="name">flashReady</span> : const <span class="type">bool</span></h3>
<p>This property holds indicates if the flash is charged and ready to use.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><span class="name"><b>isFlashReady</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>flashReady</b></span>(bool<i> ready</i>)</td></tr>
</table>
<!-- @@@flashReady -->
<!-- $$$isoSensitivity-prop$$$isoSensitivity$$$isoSensitivityChangedint -->
<h3 class="fn"><a name="isoSensitivity-prop"></a><span class="name">isoSensitivity</span> : const <span class="type">int</span></h3>
<p>This property holds the sensor ISO sensitivity.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> int </td><td class="memItemRight bottomAlign"><span class="name"><b>isoSensitivity</b></span>() const</td></tr>
</table>
<p><b>Notifier signal:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>isoSensitivityChanged</b></span>(int<i> value</i>)</td></tr>
</table>
<p><b>See also </b><a href="qcameraexposure.html#supportedIsoSensitivities">supportedIsoSensitivities</a>(), <a href="qcameraexposure.html#setAutoIsoSensitivity">setAutoIsoSensitivity</a>(), and <a href="qcameraexposure.html#setManualIsoSensitivity">setManualIsoSensitivity</a>().</p>
<!-- @@@isoSensitivity -->
<!-- $$$meteringMode-prop$$$meteringMode$$$setMeteringModeMeteringMode -->
<h3 class="fn"><a name="meteringMode-prop"></a><span class="name">meteringMode</span> : <span class="type"><a href="qcameraexposure.html#MeteringMode-enum">QCameraExposure::MeteringMode</a></span></h3>
<p>This property holds the metering mode being used.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> MeteringMode </td><td class="memItemRight bottomAlign"><span class="name"><b>meteringMode</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setMeteringMode</b></span>(MeteringMode<i> mode</i>)</td></tr>
</table>
<p><b>See also </b><a href="qcameraexposure.html#isMeteringModeSupported">QCameraExposure::isMeteringModeSupported</a>().</p>
<!-- @@@meteringMode -->
<!-- $$$shutterSpeed-prop$$$shutterSpeed$$$shutterSpeedChangedqreal -->
<h3 class="fn"><a name="shutterSpeed-prop"></a><span class="name">shutterSpeed</span> : const <span class="type">qreal</span></h3>
<p>This property holds camera's shutter speed in seconds.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> qreal </td><td class="memItemRight bottomAlign"><span class="name"><b>shutterSpeed</b></span>() const</td></tr>
</table>
<p><b>Notifier signal:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>shutterSpeedChanged</b></span>(qreal<i> speed</i>)</td></tr>
</table>
<p><b>See also </b><a href="qcameraexposure.html#supportedShutterSpeeds">supportedShutterSpeeds</a>(), <a href="qcameraexposure.html#setAutoShutterSpeed">setAutoShutterSpeed</a>(), and <a href="qcameraexposure.html#setManualShutterSpeed">setManualShutterSpeed</a>().</p>
<!-- @@@shutterSpeed -->
</div>
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$apertureRangeChanged[overload1]$$$apertureRangeChanged -->
<h3 class="fn"><a name="apertureRangeChanged"></a><span class="type">void</span> QCameraExposure::<span class="name">apertureRangeChanged</span>()<tt> [signal]</tt></h3>
<p>Signal emitted when aperature range has changed.</p>
<!-- @@@apertureRangeChanged -->
<!-- $$$isAvailable[overload1]$$$isAvailable -->
<h3 class="fn"><a name="isAvailable"></a><span class="type">bool</span> QCameraExposure::<span class="name">isAvailable</span>() const</h3>
<p>Returns true if exposure settings are supported by this camera.</p>
<!-- @@@isAvailable -->
<!-- $$$isExposureModeSupported[overload1]$$$isExposureModeSupportedExposureMode -->
<h3 class="fn"><a name="isExposureModeSupported"></a><span class="type">bool</span> QCameraExposure::<span class="name">isExposureModeSupported</span>(<span class="type"><a href="qcameraexposure.html#ExposureMode-enum">ExposureMode</a></span><i> mode</i>) const</h3>
<p>Returns true if the exposure <i>mode</i> is supported.</p>
<!-- @@@isExposureModeSupported -->
<!-- $$$isFlashModeSupported[overload1]$$$isFlashModeSupportedFlashModes -->
<h3 class="fn"><a name="isFlashModeSupported"></a><span class="type">bool</span> QCameraExposure::<span class="name">isFlashModeSupported</span>(<span class="type"><a href="qcameraexposure.html#FlashMode-enum">FlashModes</a></span><i> mode</i>) const</h3>
<p>Returns true if the flash <i>mode</i> is supported.</p>
<!-- @@@isFlashModeSupported -->
<!-- $$$isMeteringModeSupported[overload1]$$$isMeteringModeSupportedMeteringMode -->
<h3 class="fn"><a name="isMeteringModeSupported"></a><span class="type">bool</span> QCameraExposure::<span class="name">isMeteringModeSupported</span>(<span class="type"><a href="qcameraexposure.html#MeteringMode-enum">MeteringMode</a></span><i> mode</i>) const</h3>
<p>Returns true if the metering <i>mode</i> is supported.</p>
<!-- @@@isMeteringModeSupported -->
<!-- $$$requestedAperture[overload1]$$$requestedAperture -->
<h3 class="fn"><a name="requestedAperture"></a><span class="type">qreal</span> QCameraExposure::<span class="name">requestedAperture</span>() const</h3>
<p>Returns the requested manual aperture or -1.0 if automatic aperture is turned on.</p>
<!-- @@@requestedAperture -->
<!-- $$$requestedIsoSensitivity[overload1]$$$requestedIsoSensitivity -->
<h3 class="fn"><a name="requestedIsoSensitivity"></a><span class="type">int</span> QCameraExposure::<span class="name">requestedIsoSensitivity</span>() const</h3>
<p>Returns the requested ISO sensitivity or -1 if automatic ISO is turned on.</p>
<!-- @@@requestedIsoSensitivity -->
<!-- $$$requestedShutterSpeed[overload1]$$$requestedShutterSpeed -->
<h3 class="fn"><a name="requestedShutterSpeed"></a><span class="type">qreal</span> QCameraExposure::<span class="name">requestedShutterSpeed</span>() const</h3>
<p>Returns the requested manual shutter speed in seconds or -1.0 if automatic shutter speed is turned on.</p>
<!-- @@@requestedShutterSpeed -->
<!-- $$$setAutoAperture[overload1]$$$setAutoAperture -->
<h3 class="fn"><a name="setAutoAperture"></a><span class="type">void</span> QCameraExposure::<span class="name">setAutoAperture</span>()<tt> [slot]</tt></h3>
<p>Turn on auto aperture</p>
<!-- @@@setAutoAperture -->
<!-- $$$setAutoIsoSensitivity[overload1]$$$setAutoIsoSensitivity -->
<h3 class="fn"><a name="setAutoIsoSensitivity"></a><span class="type">void</span> QCameraExposure::<span class="name">setAutoIsoSensitivity</span>()<tt> [slot]</tt></h3>
<p>Turn on auto sensitivity</p>
<!-- @@@setAutoIsoSensitivity -->
<!-- $$$setAutoShutterSpeed[overload1]$$$setAutoShutterSpeed -->
<h3 class="fn"><a name="setAutoShutterSpeed"></a><span class="type">void</span> QCameraExposure::<span class="name">setAutoShutterSpeed</span>()<tt> [slot]</tt></h3>
<p>Turn on auto shutter speed</p>
<!-- @@@setAutoShutterSpeed -->
<!-- $$$setManualAperture[overload1]$$$setManualApertureqreal -->
<h3 class="fn"><a name="setManualAperture"></a><span class="type">void</span> QCameraExposure::<span class="name">setManualAperture</span>(<span class="type">qreal</span><i> aperture</i>)<tt> [slot]</tt></h3>
<p>Sets the manual camera <i>aperture</i> value.</p>
<!-- @@@setManualAperture -->
<!-- $$$setManualIsoSensitivity[overload1]$$$setManualIsoSensitivityint -->
<h3 class="fn"><a name="setManualIsoSensitivity"></a><span class="type">void</span> QCameraExposure::<span class="name">setManualIsoSensitivity</span>(<span class="type">int</span><i> iso</i>)<tt> [slot]</tt></h3>
<p>Sets the manual sensitivity to <i>iso</i></p>
<!-- @@@setManualIsoSensitivity -->
<!-- $$$setManualShutterSpeed[overload1]$$$setManualShutterSpeedqreal -->
<h3 class="fn"><a name="setManualShutterSpeed"></a><span class="type">void</span> QCameraExposure::<span class="name">setManualShutterSpeed</span>(<span class="type">qreal</span><i> seconds</i>)<tt> [slot]</tt></h3>
<p>Set the manual shutter speed to <i>seconds</i></p>
<!-- @@@setManualShutterSpeed -->
<!-- $$$setSpotMeteringPoint[overload1]$$$setSpotMeteringPointconstQPointF& -->
<h3 class="fn"><a name="setSpotMeteringPoint"></a><span class="type">void</span> QCameraExposure::<span class="name">setSpotMeteringPoint</span>(const <span class="type">QPointF</span> &<i> point</i>)</h3>
<p>Allows setting the spot metering point to <i>point</i>.</p>
<p><b>See also </b><a href="qcameraexposure.html#spotMeteringPoint">spotMeteringPoint</a>().</p>
<!-- @@@setSpotMeteringPoint -->
<!-- $$$shutterSpeedRangeChanged[overload1]$$$shutterSpeedRangeChanged -->
<h3 class="fn"><a name="shutterSpeedRangeChanged"></a><span class="type">void</span> QCameraExposure::<span class="name">shutterSpeedRangeChanged</span>()<tt> [signal]</tt></h3>
<p>Signal emitted when the shutter speed range has changed.</p>
<!-- @@@shutterSpeedRangeChanged -->
<!-- $$$spotMeteringPoint[overload1]$$$spotMeteringPoint -->
<h3 class="fn"><a name="spotMeteringPoint"></a><span class="type">QPointF</span> QCameraExposure::<span class="name">spotMeteringPoint</span>() const</h3>
<p>When supported, the spot metering point is the (normalized) position of the point of the image where exposure metering will be performed. This is typically used to indicate an "interesting" area of the image that should be exposed properly.</p>
<p>The coordinates are relative frame coordinates: QPointF(0,0) points to the left top frame point, QPointF(0.5,0.5) points to the frame center, which is typically the default spot metering point.</p>
<p>The spot metering point is only used with spot metering mode.</p>
<p><b>See also </b><a href="qcameraexposure.html#setSpotMeteringPoint">setSpotMeteringPoint</a>().</p>
<!-- @@@spotMeteringPoint -->
<!-- $$$supportedApertures[overload1]$$$supportedAperturesbool* -->
<h3 class="fn"><a name="supportedApertures"></a><span class="type">QList</span><<span class="type">qreal</span>> QCameraExposure::<span class="name">supportedApertures</span>(<span class="type">bool</span> *<i> continuous</i> = 0) const</h3>
<p>Returns the list of aperture values camera supports. The apertures list can change depending on the focal length, in such a case the <a href="qcameraexposure.html#apertureRangeChanged">apertureRangeChanged</a>() signal is emitted.</p>
<p>If the camera supports arbitrary aperture values within the supported range, *<i>continuous</i> is set to true, otherwise *<i>continuous</i> is set to false.</p>
<!-- @@@supportedApertures -->
<!-- $$$supportedIsoSensitivities[overload1]$$$supportedIsoSensitivitiesbool* -->
<h3 class="fn"><a name="supportedIsoSensitivities"></a><span class="type">QList</span><<span class="type">int</span>> QCameraExposure::<span class="name">supportedIsoSensitivities</span>(<span class="type">bool</span> *<i> continuous</i> = 0) const</h3>
<p>Returns the list of ISO senitivities camera supports.</p>
<p>If the camera supports arbitrary ISO sensitivities within the supported range, *<i>continuous</i> is set to true, otherwise *<i>continuous</i> is set to false.</p>
<!-- @@@supportedIsoSensitivities -->
<!-- $$$supportedShutterSpeeds[overload1]$$$supportedShutterSpeedsbool* -->
<h3 class="fn"><a name="supportedShutterSpeeds"></a><span class="type">QList</span><<span class="type">qreal</span>> QCameraExposure::<span class="name">supportedShutterSpeeds</span>(<span class="type">bool</span> *<i> continuous</i> = 0) const</h3>
<p>Returns the list of shutter speed values in seconds camera supports.</p>
<p>If the camera supports arbitrary shutter speed values within the supported range, *<i>continuous</i> is set to true, otherwise *<i>continuous</i> is set to false.</p>
<!-- @@@supportedShutterSpeeds -->
</div>
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<p>
<acronym title="Copyright">©</acronym> 2013 Digia Plc and/or its
subsidiaries. Documentation contributions included herein are the copyrights of
their respective owners.<br> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br> Digia, Qt and their respective logos are trademarks of Digia Plc in Finland and/or other countries worldwide. All other trademarks are property
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