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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 >QCameraExposure</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
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<h3><a name="toc">Contents</a></h3>
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<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 <a href="qcameraexposure.html">QCameraExposure</a> class provides interface for exposure related camera settings. <a href="#details">More...</a></p>
<!-- @@@QCameraExposure -->
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QCameraExposure></span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += multimedia</td></tr></table></div><ul>
<li><a href="qcameraexposure-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="public-types"></a>
<h2 id="public-types">Public Types</h2>
<div class="table"><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>
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<a name="properties"></a>
<h2 id="properties">Properties</h2>
<div class="table"><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>
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<a name="public-functions"></a>
<h2 id="public-functions">Public Functions</h2>
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<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#isFlashReady">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">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> = Q_NULLPTR) 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> = Q_NULLPTR) 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> = Q_NULLPTR) const</td></tr>
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<a name="public-slots"></a>
<h2 id="public-slots">Public Slots</h2>
<div class="table"><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 id="signals">Signals</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qcameraexposure.html#apertureChanged">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#exposureCompensationChanged">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">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#isoSensitivityChanged">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#shutterSpeedChanged">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></div>
<a name="details"></a>
<!-- $$$QCameraExposure-description -->
<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>The <a href="qcameraexposure.html">QCameraExposure</a> 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$$$ExposureAction$$$ExposureLandscape$$$ExposureNightPortrait$$$ExposureTheatre$$$ExposureSunset$$$ExposureSteadyPhoto$$$ExposureFireworks$$$ExposureParty$$$ExposureCandlelight$$$ExposureBarcode$$$ExposureModeVendor -->
<h3 class="fn" id="ExposureMode-enum"><a name="ExposureMode-enum"></a>enum QCameraExposure::<span class="name">ExposureMode</span></h3>
<div class="table"><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"><code>QCameraExposure::ExposureAuto</code></td><td class="topAlign tblval"><code>0</code></td><td class="topAlign">Automatic mode.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureManual</code></td><td class="topAlign tblval"><code>1</code></td><td class="topAlign">Manual mode.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposurePortrait</code></td><td class="topAlign tblval"><code>2</code></td><td class="topAlign">Portrait exposure mode.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureNight</code></td><td class="topAlign tblval"><code>3</code></td><td class="topAlign">Night mode.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureBacklight</code></td><td class="topAlign tblval"><code>4</code></td><td class="topAlign">Backlight exposure mode.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureSpotlight</code></td><td class="topAlign tblval"><code>5</code></td><td class="topAlign">Spotlight exposure mode.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureSports</code></td><td class="topAlign tblval"><code>6</code></td><td class="topAlign">Spots exposure mode.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureSnow</code></td><td class="topAlign tblval"><code>7</code></td><td class="topAlign">Snow exposure mode.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureBeach</code></td><td class="topAlign tblval"><code>8</code></td><td class="topAlign">Beach exposure mode.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureLargeAperture</code></td><td class="topAlign tblval"><code>9</code></td><td class="topAlign">Use larger aperture with small depth of field.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureSmallAperture</code></td><td class="topAlign tblval"><code>10</code></td><td class="topAlign">Use smaller aperture.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureAction</code></td><td class="topAlign tblval"><code>11</code></td><td class="topAlign">Action mode. Since 5.5</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureLandscape</code></td><td class="topAlign tblval"><code>12</code></td><td class="topAlign">Landscape mode. Since 5.5</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureNightPortrait</code></td><td class="topAlign tblval"><code>13</code></td><td class="topAlign">Night portrait mode. Since 5.5</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureTheatre</code></td><td class="topAlign tblval"><code>14</code></td><td class="topAlign">Theatre mode. Since 5.5</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureSunset</code></td><td class="topAlign tblval"><code>15</code></td><td class="topAlign">Sunset mode. Since 5.5</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureSteadyPhoto</code></td><td class="topAlign tblval"><code>16</code></td><td class="topAlign">Steady photo mode. Since 5.5</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureFireworks</code></td><td class="topAlign tblval"><code>17</code></td><td class="topAlign">Fireworks mode. Since 5.5</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureParty</code></td><td class="topAlign tblval"><code>18</code></td><td class="topAlign">Party mode. Since 5.5</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureCandlelight</code></td><td class="topAlign tblval"><code>19</code></td><td class="topAlign">Candlelight mode. Since 5.5</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureBarcode</code></td><td class="topAlign tblval"><code>20</code></td><td class="topAlign">Barcode mode. Since 5.5</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::ExposureModeVendor</code></td><td class="topAlign tblval"><code>1000</code></td><td class="topAlign">The base value for device specific exposure modes.</td></tr>
</table></div>
<!-- @@@ExposureMode -->
<!-- $$$FlashMode$$$FlashAuto$$$FlashOff$$$FlashOn$$$FlashRedEyeReduction$$$FlashFill$$$FlashTorch$$$FlashVideoLight$$$FlashSlowSyncFrontCurtain$$$FlashSlowSyncRearCurtain$$$FlashManual -->
<h3 class="flags" id="FlashMode-enum"><a name="FlashMode-enum"></a>enum QCameraExposure::<span class="name">FlashMode</span><br/>flags QCameraExposure::<span class="name">FlashModes</span></h3>
<div class="table"><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"><code>QCameraExposure::FlashAuto</code></td><td class="topAlign tblval"><code>0x1</code></td><td class="topAlign">Automatic flash.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::FlashOff</code></td><td class="topAlign tblval"><code>0x2</code></td><td class="topAlign">Flash is Off.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::FlashOn</code></td><td class="topAlign tblval"><code>0x4</code></td><td class="topAlign">Flash is On.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::FlashRedEyeReduction</code></td><td class="topAlign tblval"><code>0x8</code></td><td class="topAlign">Red eye reduction flash.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::FlashFill</code></td><td class="topAlign tblval"><code>0x10</code></td><td class="topAlign">Use flash to fillin shadows.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::FlashTorch</code></td><td class="topAlign tblval"><code>0x20</code></td><td class="topAlign">Constant light source. If supported, torch can be enabled without loading the camera.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::FlashVideoLight</code></td><td class="topAlign tblval"><code>0x40</code></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"><code>QCameraExposure::FlashSlowSyncFrontCurtain</code></td><td class="topAlign tblval"><code>0x80</code></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"><code>QCameraExposure::FlashSlowSyncRearCurtain</code></td><td class="topAlign tblval"><code>0x100</code></td><td class="topAlign">The similar mode to FlashSlowSyncFrontCurtain but flash is fired at the end of exposure.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::FlashManual</code></td><td class="topAlign tblval"><code>0x200</code></td><td class="topAlign">Flash power is manualy set.</td></tr>
</table></div>
<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" id="MeteringMode-enum"><a name="MeteringMode-enum"></a>enum QCameraExposure::<span class="name">MeteringMode</span></h3>
<div class="table"><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"><code>QCameraExposure::MeteringMatrix</code></td><td class="topAlign tblval"><code>1</code></td><td class="topAlign">Matrix metering mode.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::MeteringAverage</code></td><td class="topAlign tblval"><code>2</code></td><td class="topAlign">Center weighted average metering mode.</td></tr>
<tr><td class="topAlign"><code>QCameraExposure::MeteringSpot</code></td><td class="topAlign tblval"><code>3</code></td><td class="topAlign">Spot metering mode.</td></tr>
</table></div>
<!-- @@@MeteringMode -->
</div>
<div class="prop">
<h2>Property Documentation</h2>
<!-- $$$aperture-prop$$$aperture$$$apertureChangedqreal -->
<h3 class="fn" id="aperture-prop"><a name="aperture-prop"></a><span class="name">aperture</span> : const <span class="type">qreal</span></h3>
<p>Lens aperture is specified as an F number, the ratio of the focal length to effective aperture diameter.</p>
<p><b>Access functions:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> qreal </td><td class="memItemRight bottomAlign"><span class="name"><b>aperture</b></span>() const</td></tr>
</table></div>
<p><b>Notifier signal:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qcameraexposure.html#apertureChanged">apertureChanged</a></b></span>(qreal <i>value</i>)</td></tr>
</table></div>
<p><b>See also </b><a href="qcameraexposure.html#supportedApertures">supportedApertures</a>(), <a href="qcameraexposure.html#setAutoAperture">setAutoAperture</a>(), <a href="qcameraexposure.html#setManualAperture">setManualAperture</a>(), and <a href="qcameraexposure.html#requestedAperture">requestedAperture</a>().</p>
<!-- @@@aperture -->
<!-- $$$exposureCompensation-prop$$$exposureCompensation$$$setExposureCompensationqreal$$$exposureCompensationChangedqreal -->
<h3 class="fn" id="exposureCompensation-prop"><a name="exposureCompensation-prop"></a><span class="name">exposureCompensation</span> : <span class="type">qreal</span></h3>
<p>Exposure compensation in EV units.</p>
<p>Exposure compensation property allows to adjust the automatically calculated exposure.</p>
<p><b>Access functions:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> qreal </td><td class="memItemRight bottomAlign"><span class="name"><b>exposureCompensation</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setExposureCompensation</b></span>(qreal <i>ev</i>)</td></tr>
</table></div>
<p><b>Notifier signal:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qcameraexposure.html#exposureCompensationChanged">exposureCompensationChanged</a></b></span>(qreal <i>value</i>)</td></tr>
</table></div>
<!-- @@@exposureCompensation -->
<!-- $$$exposureMode-prop$$$exposureMode$$$setExposureModeExposureMode -->
<h3 class="fn" id="exposureMode-prop"><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>
<div class="table"><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></div>
<p><b>See also </b><a href="qcameraexposure.html#isExposureModeSupported">QCameraExposure::isExposureModeSupported</a>().</p>
<!-- @@@exposureMode -->
<!-- $$$flashMode-prop$$$flashMode$$$setFlashModeFlashModes -->
<h3 class="fn" id="flashMode-prop"><a name="flashMode-prop"></a><span class="name">flashMode</span> : <span class="type"><a href="qcameraexposure.html#FlashMode-enum">QCameraExposure::FlashModes</a></span></h3>
<p>This property holds the flash mode being used.</p>
<p>Usually the single <a href="qcameraexposure.html#FlashMode-enum">QCameraExposure::FlashMode</a> flag is used, but some non conflicting flags combination are also allowed, like <a href="qcameraexposure.html#FlashMode-enum">QCameraExposure::FlashManual</a> | <a href="qcameraexposure.html#FlashMode-enum">QCameraExposure::FlashSlowSyncRearCurtain</a>.</p>
<p><b>Access functions:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> FlashModes </td><td class="memItemRight bottomAlign"><span class="name"><b>flashMode</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setFlashMode</b></span>(FlashModes <i>mode</i>)</td></tr>
</table></div>
<p><b>See also </b><a href="qcameraexposure.html#isFlashModeSupported">QCameraExposure::isFlashModeSupported</a>() and <a href="qcameraexposure.html#isFlashReady">QCameraExposure::isFlashReady</a>().</p>
<!-- @@@flashMode -->
<!-- $$$flashReady-prop$$$isFlashReady$$$flashReadybool -->
<h3 class="fn" id="flashReady-prop"><a name="flashReady-prop"></a><span class="name">flashReady</span> : const <span class="type">bool</span></h3>
<p>Indicates if the flash is charged and ready to use.</p>
<p><b>Access functions:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qcameraexposure.html#isFlashReady">isFlashReady</a></b></span>() const</td></tr>
</table></div>
<p><b>Notifier signal:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qcameraexposure.html#flashReady">flashReady</a></b></span>(bool <i>ready</i>)</td></tr>
</table></div>
<!-- @@@flashReady -->
<!-- $$$isoSensitivity-prop$$$isoSensitivity$$$isoSensitivityChangedint -->
<h3 class="fn" id="isoSensitivity-prop"><a name="isoSensitivity-prop"></a><span class="name">isoSensitivity</span> : const <span class="type">int</span></h3>
<p>This property holds the sensor ISO sensitivity.</p>
<p><b>Access functions:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> int </td><td class="memItemRight bottomAlign"><span class="name"><b>isoSensitivity</b></span>() const</td></tr>
</table></div>
<p><b>Notifier signal:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qcameraexposure.html#isoSensitivityChanged">isoSensitivityChanged</a></b></span>(int <i>value</i>)</td></tr>
</table></div>
<p><b>See also </b><a href="qcameraexposure.html#supportedIsoSensitivities">supportedIsoSensitivities</a>(), <a href="qcameraexposure.html#setAutoIsoSensitivity">setAutoIsoSensitivity</a>(), and <a href="qcameraexposure.html#setManualIsoSensitivity">setManualIsoSensitivity</a>().</p>
<!-- @@@isoSensitivity -->
<!-- $$$meteringMode-prop$$$meteringMode$$$setMeteringModeMeteringMode -->
<h3 class="fn" id="meteringMode-prop"><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>
<div class="table"><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></div>
<p><b>See also </b><a href="qcameraexposure.html#isMeteringModeSupported">QCameraExposure::isMeteringModeSupported</a>().</p>
<!-- @@@meteringMode -->
<!-- $$$shutterSpeed-prop$$$shutterSpeed$$$shutterSpeedChangedqreal -->
<h3 class="fn" id="shutterSpeed-prop"><a name="shutterSpeed-prop"></a><span class="name">shutterSpeed</span> : const <span class="type">qreal</span></h3>
<p>Camera's shutter speed in seconds.</p>
<p><b>Access functions:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> qreal </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qcameraexposure.html#shutterSpeed">shutterSpeed</a></b></span>() const</td></tr>
</table></div>
<p><b>Notifier signal:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qcameraexposure.html#shutterSpeedChanged">shutterSpeedChanged</a></b></span>(qreal <i>speed</i>)</td></tr>
</table></div>
<p><b>See also </b><a href="qcameraexposure.html#supportedShutterSpeeds">supportedShutterSpeeds</a>(), <a href="qcameraexposure.html#setAutoShutterSpeed">setAutoShutterSpeed</a>(), and <a href="qcameraexposure.html#setManualShutterSpeed">setManualShutterSpeed</a>().</p>
<!-- @@@shutterSpeed -->
</div>
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$apertureChanged -->
<h3 class="fn" id="apertureChanged"><a name="apertureChanged"></a><code>[signal] </code><span class="type">void</span> QCameraExposure::<span class="name">apertureChanged</span>(<span class="type">qreal</span> <i>value</i>)</h3>
<p>Signal emitted when aperature changes to <i>value</i>.</p>
<p><b>Note:</b> Notifier signal for property <a href="qcameraexposure.html#aperture-prop">aperture</a>. </p><!-- @@@apertureChanged -->
<!-- $$$apertureRangeChanged[overload1]$$$apertureRangeChanged -->
<h3 class="fn" id="apertureRangeChanged"><a name="apertureRangeChanged"></a><code>[signal] </code><span class="type">void</span> QCameraExposure::<span class="name">apertureRangeChanged</span>()</h3>
<p>Signal emitted when aperature range has changed.</p>
<!-- @@@apertureRangeChanged -->
<!-- $$$exposureCompensationChanged -->
<h3 class="fn" id="exposureCompensationChanged"><a name="exposureCompensationChanged"></a><code>[signal] </code><span class="type">void</span> QCameraExposure::<span class="name">exposureCompensationChanged</span>(<span class="type">qreal</span> <i>value</i>)</h3>
<p>Signal emitted when the exposure compensation changes to <i>value</i>.</p>
<p><b>Note:</b> Notifier signal for property <a href="qcameraexposure.html#exposureCompensation-prop">exposureCompensation</a>. </p><!-- @@@exposureCompensationChanged -->
<!-- $$$flashReady -->
<h3 class="fn" id="flashReady"><a name="flashReady"></a><code>[signal] </code><span class="type">void</span> QCameraExposure::<span class="name">flashReady</span>(<span class="type">bool</span> <i>ready</i>)</h3>
<p>Signal the flash <i>ready</i> status has changed.</p>
<p><b>Note:</b> Notifier signal for property <a href="qcameraexposure.html#flashReady-prop">flashReady</a>. </p><!-- @@@flashReady -->
<!-- $$$isAvailable[overload1]$$$isAvailable -->
<h3 class="fn" id="isAvailable"><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" id="isExposureModeSupported"><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" id="isFlashModeSupported"><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 -->
<!-- $$$isFlashReady -->
<h3 class="fn" id="isFlashReady"><a name="isFlashReady"></a><span class="type">bool</span> QCameraExposure::<span class="name">isFlashReady</span>() const</h3>
<p>Returns true if flash is charged.</p>
<p><b>Note:</b> Getter function for property <a href="qcameraexposure.html#flashReady-prop">flashReady</a>. </p><!-- @@@isFlashReady -->
<!-- $$$isMeteringModeSupported[overload1]$$$isMeteringModeSupportedMeteringMode -->
<h3 class="fn" id="isMeteringModeSupported"><a name="isMeteringModeSupported"></a><span class="type">bool</span> QCameraExposure::<span class="name">isMeteringModeSupported</span>(<span class="type"><a href="qcameraexposure.html#MeteringMode-enum">MeteringMode</a></span> <i>mode</i>) const</h3>
<p>Returns true if the metering <i>mode</i> is supported.</p>
<!-- @@@isMeteringModeSupported -->
<!-- $$$isoSensitivityChanged -->
<h3 class="fn" id="isoSensitivityChanged"><a name="isoSensitivityChanged"></a><code>[signal] </code><span class="type">void</span> QCameraExposure::<span class="name">isoSensitivityChanged</span>(<span class="type">int</span> <i>value</i>)</h3>
<p>Signal emitted when sensitivity changes to <i>value</i>.</p>
<p><b>Note:</b> Notifier signal for property <a href="qcameraexposure.html#isoSensitivity-prop">isoSensitivity</a>. </p><!-- @@@isoSensitivityChanged -->
<!-- $$$requestedAperture[overload1]$$$requestedAperture -->
<h3 class="fn" id="requestedAperture"><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" id="requestedIsoSensitivity"><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" id="requestedShutterSpeed"><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" id="setAutoAperture"><a name="setAutoAperture"></a><code>[slot] </code><span class="type">void</span> QCameraExposure::<span class="name">setAutoAperture</span>()</h3>
<p>Turn on auto aperture</p>
<!-- @@@setAutoAperture -->
<!-- $$$setAutoIsoSensitivity[overload1]$$$setAutoIsoSensitivity -->
<h3 class="fn" id="setAutoIsoSensitivity"><a name="setAutoIsoSensitivity"></a><code>[slot] </code><span class="type">void</span> QCameraExposure::<span class="name">setAutoIsoSensitivity</span>()</h3>
<p>Turn on auto sensitivity</p>
<!-- @@@setAutoIsoSensitivity -->
<!-- $$$setAutoShutterSpeed[overload1]$$$setAutoShutterSpeed -->
<h3 class="fn" id="setAutoShutterSpeed"><a name="setAutoShutterSpeed"></a><code>[slot] </code><span class="type">void</span> QCameraExposure::<span class="name">setAutoShutterSpeed</span>()</h3>
<p>Turn on auto shutter speed</p>
<!-- @@@setAutoShutterSpeed -->
<!-- $$$setManualAperture[overload1]$$$setManualApertureqreal -->
<h3 class="fn" id="setManualAperture"><a name="setManualAperture"></a><code>[slot] </code><span class="type">void</span> QCameraExposure::<span class="name">setManualAperture</span>(<span class="type">qreal</span> <i>aperture</i>)</h3>
<p>Sets the manual camera <i>aperture</i> value.</p>
<!-- @@@setManualAperture -->
<!-- $$$setManualIsoSensitivity[overload1]$$$setManualIsoSensitivityint -->
<h3 class="fn" id="setManualIsoSensitivity"><a name="setManualIsoSensitivity"></a><code>[slot] </code><span class="type">void</span> QCameraExposure::<span class="name">setManualIsoSensitivity</span>(<span class="type">int</span> <i>iso</i>)</h3>
<p>Sets the manual sensitivity to <i>iso</i></p>
<!-- @@@setManualIsoSensitivity -->
<!-- $$$setManualShutterSpeed[overload1]$$$setManualShutterSpeedqreal -->
<h3 class="fn" id="setManualShutterSpeed"><a name="setManualShutterSpeed"></a><code>[slot] </code><span class="type">void</span> QCameraExposure::<span class="name">setManualShutterSpeed</span>(<span class="type">qreal</span> <i>seconds</i>)</h3>
<p>Set the manual shutter speed to <i>seconds</i></p>
<!-- @@@setManualShutterSpeed -->
<!-- $$$setSpotMeteringPoint[overload1]$$$setSpotMeteringPointconstQPointF& -->
<h3 class="fn" id="setSpotMeteringPoint"><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 -->
<!-- $$$shutterSpeed -->
<h3 class="fn" id="shutterSpeed"><a name="shutterSpeed"></a><span class="type">qreal</span> QCameraExposure::<span class="name">shutterSpeed</span>() const</h3>
<p>Returns the current shutter speed in seconds.</p>
<p><b>Note:</b> Getter function for property <a href="qcameraexposure.html#shutterSpeed-prop">shutterSpeed</a>. </p><!-- @@@shutterSpeed -->
<!-- $$$shutterSpeedChanged -->
<h3 class="fn" id="shutterSpeedChanged"><a name="shutterSpeedChanged"></a><code>[signal] </code><span class="type">void</span> QCameraExposure::<span class="name">shutterSpeedChanged</span>(<span class="type">qreal</span> <i>speed</i>)</h3>
<p>Signals that a camera's shutter <i>speed</i> has changed.</p>
<p><b>Note:</b> Notifier signal for property <a href="qcameraexposure.html#shutterSpeed-prop">shutterSpeed</a>. </p><!-- @@@shutterSpeedChanged -->
<!-- $$$shutterSpeedRangeChanged[overload1]$$$shutterSpeedRangeChanged -->
<h3 class="fn" id="shutterSpeedRangeChanged"><a name="shutterSpeedRangeChanged"></a><code>[signal] </code><span class="type">void</span> QCameraExposure::<span class="name">shutterSpeedRangeChanged</span>()</h3>
<p>Signal emitted when the shutter speed range has changed.</p>
<!-- @@@shutterSpeedRangeChanged -->
<!-- $$$spotMeteringPoint[overload1]$$$spotMeteringPoint -->
<h3 class="fn" id="spotMeteringPoint"><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" id="supportedApertures"><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> = Q_NULLPTR) 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" id="supportedIsoSensitivities"><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> = Q_NULLPTR) 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" id="supportedShutterSpeeds"><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> = Q_NULLPTR) 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 -->
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