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<title>Slider QML Type | Qt Quick Controls 2 5.7</title>
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<td >Qt 5.7</td><td ><a href="qtquickcontrols2-index.html">Qt Quick Controls 2</a></td><td ><a href="qtquick-controls2-qmlmodule.html">QML Types</a></td><td >Slider QML Type</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.7.1 Reference Documentation</td>
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<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#properties">Properties</a></li>
<li class="level1"><a href="#methods">Methods</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">Slider QML Type</h1>
<span class="subtitle"></span>
<!-- $$$Slider-brief -->
<p>Selects a value by sliding a handle along a track. <a href="#details">More...</a></p>
<!-- @@@Slider -->
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Import Statement:</td><td class="memItemRight bottomAlign"> import QtQuick.Controls 2.0</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> Qt 5.7</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <p><a href="qml-qtquick-controls2-control.html">Control</a></p>
</td></tr></table></div><ul>
<li><a href="qml-qtquick-controls2-slider-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="properties"></a>
<h2 id="properties">Properties</h2>
<ul>
<li class="fn"><b><b><a href="qml-qtquick-controls2-slider.html#from-prop">from</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtquick-controls2-slider.html#handle-prop">handle</a></b></b> : Item</li>
<li class="fn"><b><b><a href="qml-qtquick-controls2-slider.html#orientation-prop">orientation</a></b></b> : enumeration</li>
<li class="fn"><b><b><a href="qml-qtquick-controls2-slider.html#position-prop">position</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtquick-controls2-slider.html#pressed-prop">pressed</a></b></b> : bool</li>
<li class="fn"><b><b><a href="qml-qtquick-controls2-slider.html#snapMode-prop">snapMode</a></b></b> : enumeration</li>
<li class="fn"><b><b><a href="qml-qtquick-controls2-slider.html#stepSize-prop">stepSize</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtquick-controls2-slider.html#to-prop">to</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtquick-controls2-slider.html#value-prop">value</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtquick-controls2-slider.html#visualPosition-prop">visualPosition</a></b></b> : real</li>
</ul>
<a name="methods"></a>
<h2 id="methods">Methods</h2>
<ul>
<li class="fn">void <b><b><a href="qml-qtquick-controls2-slider.html#decrease-method">decrease</a></b></b>()</li>
<li class="fn">void <b><b><a href="qml-qtquick-controls2-slider.html#increase-method">increase</a></b></b>()</li>
</ul>
<!-- $$$Slider-description -->
<a name="details"></a>
<h2 id="details">Detailed Description</h2>
</p>
<p class="centerAlign"><img src="images/qtquickcontrols2-slider.gif" alt="" /></p><p>Slider is used to select a value by sliding a handle along a track.</p>
<div class="table"><table class="generic">
<tr valign="top" class="odd"><td ><p class="centerAlign"><img src="images/qtquickcontrols2-slider-normal.png" alt="" /></p></td><td >A slider in its normal state.</td></tr>
<tr valign="top" class="even"><td ><p class="centerAlign"><img src="images/qtquickcontrols2-slider-focused.png" alt="" /></p></td><td >A slider that has active focus.</td></tr>
<tr valign="top" class="odd"><td ><p class="centerAlign"><img src="images/qtquickcontrols2-slider-disabled.png" alt="" /></p></td><td >A slider that is disabled.</td></tr>
</table></div>
<pre class="cpp">
Slider {
value: <span class="number">0.5</span>
}
</pre>
<p><b>See also </b><a href="qtquickcontrols2-customize.html#customizing-slider">Customizing Slider</a> and <a href="qtquickcontrols2-input.html">Input Controls</a>.</p>
<!-- @@@Slider -->
<h2>Property Documentation</h2>
<!-- $$$from -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="from-prop">
<td class="tblQmlPropNode"><p>
<a name="from-prop"></a><span class="name">from</span> : <span class="type">real</span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds the starting value for the range. The default value is <code>0.0</code>.</p>
<p><b>See also </b><a href="qml-qtquick-controls2-slider.html#to-prop">to</a> and <a href="qml-qtquick-controls2-slider.html#value-prop">value</a>.</p>
</div></div><!-- @@@from -->
<br/>
<!-- $$$handle -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="handle-prop">
<td class="tblQmlPropNode"><p>
<a name="handle-prop"></a><span class="name">handle</span> : <span class="type"><a href="../qtquick/qml-qtquick-item.html">Item</a></span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds the handle item.</p>
<p><b>See also </b><a href="qtquickcontrols2-customize.html#customizing-slider">Customizing Slider</a>.</p>
</div></div><!-- @@@handle -->
<br/>
<!-- $$$orientation -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="orientation-prop">
<td class="tblQmlPropNode"><p>
<a name="orientation-prop"></a><span class="name">orientation</span> : <span class="type">enumeration</span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds the orientation.</p>
<p>Possible values:</p>
<div class="table"><table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tbldscr">Description</th></tr>
<tr><td class="topAlign"><code>Qt.Horizontal</code></td><td class="topAlign">Horizontal (default)</td></tr>
<tr><td class="topAlign"><code>Qt.Vertical</code></td><td class="topAlign">Vertical</td></tr>
</table></div>
</div></div><!-- @@@orientation -->
<br/>
<!-- $$$position -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="position-prop">
<td class="tblQmlPropNode"><p>
<a name="position-prop"></a><span class="qmlreadonly">[read-only] </span><span class="name">position</span> : <span class="type">real</span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds the logical position of the handle.</p>
<p>The position is defined as a percentage of the control's size, scaled to <code>0.0 - 1.0</code>. Unlike the <a href="qml-qtquick-controls2-slider.html#value-prop">value</a> property, the <code>position</code> is continuously updated while the handle is dragged. For visualizing a slider, the right-to-left aware <a href="qml-qtquick-controls2-slider.html#visualPosition-prop">visualPosition</a> should be used instead.</p>
<p><b>See also </b><a href="qml-qtquick-controls2-slider.html#value-prop">value</a> and <a href="qml-qtquick-controls2-slider.html#visualPosition-prop">visualPosition</a>.</p>
</div></div><!-- @@@position -->
<br/>
<!-- $$$pressed -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="pressed-prop">
<td class="tblQmlPropNode"><p>
<a name="pressed-prop"></a><span class="name">pressed</span> : <span class="type">bool</span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds whether the slider is pressed.</p>
</div></div><!-- @@@pressed -->
<br/>
<!-- $$$snapMode -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="snapMode-prop">
<td class="tblQmlPropNode"><p>
<a name="snapMode-prop"></a><span class="name">snapMode</span> : <span class="type">enumeration</span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds the snap mode.</p>
<p>Possible values:</p>
<div class="table"><table class="valuelist"><tr valign="top" class="odd"><th class="tblConst">Constant</th><th class="tbldscr">Description</th></tr>
<tr><td class="topAlign"><code>Slider.NoSnap</code></td><td class="topAlign">The slider does not snap (default).</td></tr>
<tr><td class="topAlign"><code>Slider.SnapAlways</code></td><td class="topAlign">The slider snaps while the handle is dragged.</td></tr>
<tr><td class="topAlign"><code>Slider.SnapOnRelease</code></td><td class="topAlign">The slider does not snap while being dragged, but only after the handle is released.</td></tr>
</table></div>
<p><b>See also </b><a href="qml-qtquick-controls2-slider.html#stepSize-prop">stepSize</a>.</p>
</div></div><!-- @@@snapMode -->
<br/>
<!-- $$$stepSize -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="stepSize-prop">
<td class="tblQmlPropNode"><p>
<a name="stepSize-prop"></a><span class="name">stepSize</span> : <span class="type">real</span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds the step size. The default value is <code>0.0</code>.</p>
<p><b>See also </b><a href="qml-qtquick-controls2-slider.html#snapMode-prop">snapMode</a>, <a href="qml-qtquick-controls2-slider.html#increase-method">increase()</a>, and <a href="qml-qtquick-controls2-slider.html#decrease-method">decrease()</a>.</p>
</div></div><!-- @@@stepSize -->
<br/>
<!-- $$$to -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="to-prop">
<td class="tblQmlPropNode"><p>
<a name="to-prop"></a><span class="name">to</span> : <span class="type">real</span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds the end value for the range. The default value is <code>1.0</code>.</p>
<p><b>See also </b><a href="qml-qtquick-controls2-slider.html#from-prop">from</a> and <a href="qml-qtquick-controls2-slider.html#value-prop">value</a>.</p>
</div></div><!-- @@@to -->
<br/>
<!-- $$$value -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="value-prop">
<td class="tblQmlPropNode"><p>
<a name="value-prop"></a><span class="name">value</span> : <span class="type">real</span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds the value in the range <code>from</code> - <code>to</code>. The default value is <code>0.0</code>.</p>
<p>Unlike the <a href="qml-qtquick-controls2-slider.html#position-prop">position</a> property, the <code>value</code> is not updated while the handle is dragged. The value is updated after the value has been chosen and the slider has been released.</p>
<p><b>See also </b><a href="qml-qtquick-controls2-slider.html#position-prop">position</a>.</p>
</div></div><!-- @@@value -->
<br/>
<!-- $$$visualPosition -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="visualPosition-prop">
<td class="tblQmlPropNode"><p>
<a name="visualPosition-prop"></a><span class="qmlreadonly">[read-only] </span><span class="name">visualPosition</span> : <span class="type">real</span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds the visual position of the handle.</p>
<p>The position is defined as a percentage of the control's size, scaled to <code>0.0 - 1.0</code>. When the control is <a href="qml-qtquick-controls2-control.html#mirrored-prop">mirrored</a>, the value is equal to <code>1.0 - position</code>. This makes the value suitable for visualizing the slider, taking right-to-left support into account.</p>
<p><b>See also </b><a href="qml-qtquick-controls2-slider.html#position-prop">position</a>.</p>
</div></div><!-- @@@visualPosition -->
<br/>
<h2>Method Documentation</h2>
<!-- $$$decrease -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="decrease-method">
<td class="tblQmlFuncNode"><p>
<a name="decrease-method"></a><span class="type">void</span> <span class="name">decrease</span>()</p></td></tr>
</table></div>
</div><div class="qmldoc"><p>Decreases the value by <a href="qml-qtquick-controls2-slider.html#stepSize-prop">stepSize</a> or <code>0.1</code> if <a href="qml-qtquick-controls2-slider.html#stepSize-prop">stepSize</a> is not defined.</p>
<p><b>See also </b><a href="qml-qtquick-controls2-slider.html#stepSize-prop">stepSize</a>.</p>
</div></div><!-- @@@decrease -->
<br/>
<!-- $$$increase -->
<div class="qmlitem"><div class="qmlproto">
<div class="table"><table class="qmlname">
<tr valign="top" class="odd" id="increase-method">
<td class="tblQmlFuncNode"><p>
<a name="increase-method"></a><span class="type">void</span> <span class="name">increase</span>()</p></td></tr>
</table></div>
</div><div class="qmldoc"><p>Increases the value by <a href="qml-qtquick-controls2-slider.html#stepSize-prop">stepSize</a> or <code>0.1</code> if <a href="qml-qtquick-controls2-slider.html#stepSize-prop">stepSize</a> is not defined.</p>
<p><b>See also </b><a href="qml-qtquick-controls2-slider.html#stepSize-prop">stepSize</a>.</p>
</div></div><!-- @@@increase -->
<br/>
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