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<td >Qt 5.12</td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="qtwidgets-module.html">C++ Classes</a></td><td >QAbstractSlider</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qtwidgets-index.html">Qt 5.12.6 Reference Documentation</a></td>
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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="#static-public-members">Static Public Members</a></li>
<li class="level1"><a href="#protected-types">Protected Types</a></li>
<li class="level1"><a href="#protected-functions">Protected Functions</a></li>
<li class="level1"><a href="#reimplemented-protected-functions">Reimplemented Protected Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QAbstractSlider Class</h1>
<!-- $$$QAbstractSlider-brief -->
<p>The <a href="qabstractslider.html">QAbstractSlider</a> class provides an integer value within a range. <a href="#details">More...</a></p>
<!-- @@@QAbstractSlider -->
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<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign">   <span class="preprocessor">#include &lt;QAbstractSlider&gt;</span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += widgets</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="qwidget.html">QWidget</a></td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherited By:</td><td class="memItemRight bottomAlign"> <p><a href="qdial.html">QDial</a>, <a href="qscrollbar.html">QScrollBar</a>, and <a href="qslider.html">QSlider</a></p>
</td></tr></table></div><ul>
<li><a href="qabstractslider-members.html">List of all members, including inherited members</a></li>
<li><a href="qabstractslider-obsolete.html">Obsolete 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="qabstractslider.html#SliderAction-enum">SliderAction</a></b> { SliderNoAction, SliderSingleStepAdd, SliderSingleStepSub, SliderPageStepAdd, ..., SliderMove }</td></tr>
</table></div>
<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="qabstractslider.html#invertedAppearance-prop">invertedAppearance</a></b> : bool</li>
<li class="fn"><b><a href="qabstractslider.html#invertedControls-prop">invertedControls</a></b> : bool</li>
<li class="fn"><b><a href="qabstractslider.html#maximum-prop">maximum</a></b> : int</li>
<li class="fn"><b><a href="qabstractslider.html#minimum-prop">minimum</a></b> : int</li>
<li class="fn"><b><a href="qabstractslider.html#orientation-prop">orientation</a></b> : Qt::Orientation</li>
<li class="fn"><b><a href="qabstractslider.html#pageStep-prop">pageStep</a></b> : int</li>
</ul></td><td class="topAlign"><ul>
<li class="fn"><b><a href="qabstractslider.html#singleStep-prop">singleStep</a></b> : int</li>
<li class="fn"><b><a href="qabstractslider.html#sliderDown-prop">sliderDown</a></b> : bool</li>
<li class="fn"><b><a href="qabstractslider.html#sliderPosition-prop">sliderPosition</a></b> : int</li>
<li class="fn"><b><a href="qabstractslider.html#tracking-prop">tracking</a></b> : bool</li>
<li class="fn"><b><a href="qabstractslider.html#value-prop">value</a></b> : int</li>
</ul>
</td></tr>
</table></div>
<ul>
<li class="fn">59 properties inherited from <a href="qwidget.html#properties">QWidget</a></li>
<li class="fn">1 property inherited from <a href="../qtcore/qobject.html#properties">QObject</a></li>
</ul>
<a name="public-functions"></a>
<h2 id="public-functions">Public Functions</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#QAbstractSlider">QAbstractSlider</a></b>(QWidget *<i>parent</i> = nullptr)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#dtor.QAbstractSlider">~QAbstractSlider</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#tracking-prop">hasTracking</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#invertedAppearance-prop">invertedAppearance</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#invertedControls-prop">invertedControls</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#sliderDown-prop">isSliderDown</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#maximum-prop">maximum</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#minimum-prop">minimum</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> Qt::Orientation </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#orientation-prop">orientation</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#pageStep-prop">pageStep</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#invertedAppearance-prop">setInvertedAppearance</a></b>(<i>bool</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#invertedControls-prop">setInvertedControls</a></b>(<i>bool</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#maximum-prop">setMaximum</a></b>(<i>int</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#minimum-prop">setMinimum</a></b>(<i>int</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#pageStep-prop">setPageStep</a></b>(<i>int</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#singleStep-prop">setSingleStep</a></b>(<i>int</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#sliderDown-prop">setSliderDown</a></b>(<i>bool</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#sliderPosition-prop">setSliderPosition</a></b>(<i>int</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#tracking-prop">setTracking</a></b>(bool <i>enable</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#singleStep-prop">singleStep</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#sliderPosition-prop">sliderPosition</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#triggerAction">triggerAction</a></b>(QAbstractSlider::SliderAction <i>action</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#value-prop">value</a></b>() const</td></tr>
</table></div>
<ul>
<li class="fn">214 public functions inherited from <a href="qwidget.html#public-functions">QWidget</a></li>
<li class="fn">31 public functions inherited from <a href="../qtcore/qobject.html#public-functions">QObject</a></li>
<li class="fn">14 public functions inherited from <a href="../qtgui/qpaintdevice.html#public-functions">QPaintDevice</a></li>
</ul>
<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="qabstractslider.html#orientation-prop">setOrientation</a></b>(<i>Qt::Orientation</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#setRange">setRange</a></b>(int <i>min</i>, int <i>max</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#value-prop">setValue</a></b>(<i>int</i>)</td></tr>
</table></div>
<ul>
<li class="fn">19 public slots inherited from <a href="qwidget.html#public-slots">QWidget</a></li>
<li class="fn">1 public slot inherited from <a href="../qtcore/qobject.html#public-slots">QObject</a></li>
</ul>
<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="qabstractslider.html#actionTriggered">actionTriggered</a></b>(int <i>action</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#rangeChanged">rangeChanged</a></b>(int <i>min</i>, int <i>max</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#sliderMoved">sliderMoved</a></b>(int <i>value</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#sliderPressed">sliderPressed</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#sliderReleased">sliderReleased</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#valueChanged">valueChanged</a></b>(int <i>value</i>)</td></tr>
</table></div>
<ul>
<li class="fn">3 signals inherited from <a href="qwidget.html#signals">QWidget</a></li>
<li class="fn">2 signals inherited from <a href="../qtcore/qobject.html#signals">QObject</a></li>
</ul>
<a name="static-public-members"></a>
<h2 id="static-public-members">Static Public Members</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> const QMetaObject </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#staticMetaObject-var">staticMetaObject</a></b></td></tr>
</table></div>
<ul>
<li class="fn">5 static public members inherited from <a href="qwidget.html#static-public-members">QWidget</a></li>
<li class="fn">9 static public members inherited from <a href="../qtcore/qobject.html#static-public-members">QObject</a></li>
</ul>
<a name="protected-types"></a>
<h2 id="protected-types">Protected Types</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> enum </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#SliderChange-enum">SliderChange</a></b> { SliderRangeChange, SliderOrientationChange, SliderStepsChange, SliderValueChange }</td></tr>
</table></div>
<a name="protected-functions"></a>
<h2 id="protected-functions">Protected Functions</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> QAbstractSlider::SliderAction </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#repeatAction">repeatAction</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#setRepeatAction">setRepeatAction</a></b>(QAbstractSlider::SliderAction <i>action</i>, int <i>thresholdTime</i> = 500, int <i>repeatTime</i> = 50)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#sliderChange">sliderChange</a></b>(QAbstractSlider::SliderChange <i>change</i>)</td></tr>
</table></div>
<a name="reimplemented-protected-functions"></a>
<h2 id="reimplemented-protected-functions">Reimplemented Protected Functions</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#changeEvent">changeEvent</a></b>(QEvent *<i>ev</i>) override</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#event">event</a></b>(QEvent *<i>e</i>) override</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#keyPressEvent">keyPressEvent</a></b>(QKeyEvent *<i>ev</i>) override</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#timerEvent">timerEvent</a></b>(QTimerEvent *<i>e</i>) override</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qabstractslider.html#wheelEvent">wheelEvent</a></b>(QWheelEvent *<i>e</i>) override</td></tr>
</table></div>
<ul>
<li class="fn">35 protected functions inherited from <a href="qwidget.html#protected-functions">QWidget</a></li>
<li class="fn">9 protected functions inherited from <a href="../qtcore/qobject.html#protected-functions">QObject</a></li>
<li class="fn">1 protected function inherited from <a href="../qtgui/qpaintdevice.html#protected-functions">QPaintDevice</a></li>
</ul>
<h3>Additional Inherited Members</h3>
<ul>
<li class="fn">1 protected slot inherited from <a href="qwidget.html#protected-slots">QWidget</a></li>
</ul>
<a name="details"></a>
<!-- $$$QAbstractSlider-description -->
<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>The <a href="qabstractslider.html">QAbstractSlider</a> class provides an integer value within a range.</p>
<p>The class is designed as a common super class for widgets like <a href="qscrollbar.html">QScrollBar</a>, <a href="qslider.html">QSlider</a> and <a href="qdial.html">QDial</a>.</p>
<p>Here are the main properties of the class:</p>
<ol class="1" type="1"><li><a href="qabstractslider.html#value-prop">value</a>: The bounded integer that <a href="qabstractslider.html">QAbstractSlider</a> maintains.</li>
<li><a href="qabstractslider.html#minimum-prop">minimum</a>: The lowest possible value.</li>
<li><a href="qabstractslider.html#maximum-prop">maximum</a>: The highest possible value.</li>
<li><a href="qabstractslider.html#singleStep-prop">singleStep</a>: The smaller of two natural steps that an abstract sliders provides and typically corresponds to the user pressing an arrow key.</li>
<li><a href="qabstractslider.html#pageStep-prop">pageStep</a>: The larger of two natural steps that an abstract slider provides and typically corresponds to the user pressing PageUp or PageDown.</li>
<li><a href="qabstractslider.html#tracking-prop">tracking</a>: Whether slider tracking is enabled.</li>
<li><a href="qabstractslider.html#sliderPosition-prop">sliderPosition</a>: The current position of the slider. If <a href="qabstractslider.html#tracking-prop">tracking</a> is enabled (the default), this is identical to <a href="qabstractslider.html#value-prop">value</a>.</li>
</ol>
<p>Unity (1) may be viewed as a third step size. <a href="qabstractslider.html#value-prop">setValue</a>() lets you set the current value to any integer in the allowed range, not just <a href="qabstractslider.html#minimum-prop">minimum</a>() + <i>n</i> * <a href="qabstractslider.html#singleStep-prop">singleStep</a>() for integer values of <i>n</i>. Some widgets may allow the user to set any value at all; others may just provide multiples of <a href="qabstractslider.html#singleStep-prop">singleStep</a>() or <a href="qabstractslider.html#pageStep-prop">pageStep</a>().</p>
<p><a href="qabstractslider.html">QAbstractSlider</a> emits a comprehensive set of signals:</p>
<div class="table"><table class="generic">
 <thead><tr class="qt-style"><th >Signal</th><th >Emitted when</th></tr></thead>
<tr valign="top" class="odd"><td ><a href="qabstractslider.html#valueChanged">valueChanged</a>()</td><td >the value has changed. The <a href="qabstractslider.html#tracking-prop">tracking</a> determines whether this signal is emitted during user interaction.</td></tr>
<tr valign="top" class="even"><td ><a href="qabstractslider.html#sliderPressed">sliderPressed</a>()</td><td >the user starts to drag the slider.</td></tr>
<tr valign="top" class="odd"><td ><a href="qabstractslider.html#sliderMoved">sliderMoved</a>()</td><td >the user drags the slider.</td></tr>
<tr valign="top" class="even"><td ><a href="qabstractslider.html#sliderReleased">sliderReleased</a>()</td><td >the user releases the slider.</td></tr>
<tr valign="top" class="odd"><td ><a href="qabstractslider.html#actionTriggered">actionTriggered</a>()</td><td >a slider action was triggerd.</td></tr>
<tr valign="top" class="even"><td ><a href="qabstractslider.html#rangeChanged">rangeChanged</a>()</td><td >a the range has changed.</td></tr>
</table></div>
<p><a href="qabstractslider.html">QAbstractSlider</a> provides a virtual <a href="qabstractslider.html#sliderChange">sliderChange</a>() function that is well suited for updating the on-screen representation of sliders. By calling <a href="qabstractslider.html#triggerAction">triggerAction</a>(), subclasses trigger slider actions. Two helper functions <a href="qstyle.html#sliderPositionFromValue">QStyle::sliderPositionFromValue</a>() and <a href="qstyle.html#sliderValueFromPosition">QStyle::sliderValueFromPosition</a>() help subclasses and styles to map screen coordinates to logical range values.</p>
</div>
<p><b>See also </b><a href="qabstractspinbox.html">QAbstractSpinBox</a>, <a href="qslider.html">QSlider</a>, <a href="qdial.html">QDial</a>, <a href="qscrollbar.html">QScrollBar</a>, and <a href="qtwidgets-widgets-sliders-example.html">Sliders Example</a>.</p>
<!-- @@@QAbstractSlider -->
<div class="types">
<h2>Member Type Documentation</h2>
<!-- $$$SliderAction$$$SliderNoAction$$$SliderSingleStepAdd$$$SliderSingleStepSub$$$SliderPageStepAdd$$$SliderPageStepSub$$$SliderToMinimum$$$SliderToMaximum$$$SliderMove -->
<h3 class="fn" id="SliderAction-enum"><a name="SliderAction-enum"></a>enum QAbstractSlider::<span class="name">SliderAction</span></h3>
<div class="table"><table class="valuelist"><tr><th class="tblConst">Constant</th><th class="tblVal">Value</th></tr>
<tr><td class="topAlign"><code>QAbstractSlider::SliderNoAction</code></td><td class="topAlign tblval"><code>0</code></td></tr>
<tr><td class="topAlign"><code>QAbstractSlider::SliderSingleStepAdd</code></td><td class="topAlign tblval"><code>1</code></td></tr>
<tr><td class="topAlign"><code>QAbstractSlider::SliderSingleStepSub</code></td><td class="topAlign tblval"><code>2</code></td></tr>
<tr><td class="topAlign"><code>QAbstractSlider::SliderPageStepAdd</code></td><td class="topAlign tblval"><code>3</code></td></tr>
<tr><td class="topAlign"><code>QAbstractSlider::SliderPageStepSub</code></td><td class="topAlign tblval"><code>4</code></td></tr>
<tr><td class="topAlign"><code>QAbstractSlider::SliderToMinimum</code></td><td class="topAlign tblval"><code>5</code></td></tr>
<tr><td class="topAlign"><code>QAbstractSlider::SliderToMaximum</code></td><td class="topAlign tblval"><code>6</code></td></tr>
<tr><td class="topAlign"><code>QAbstractSlider::SliderMove</code></td><td class="topAlign tblval"><code>7</code></td></tr>
</table></div>
<!-- @@@SliderAction -->
<!-- $$$SliderChange$$$SliderRangeChange$$$SliderOrientationChange$$$SliderStepsChange$$$SliderValueChange -->
<h3 class="fn" id="SliderChange-enum"><a name="SliderChange-enum"></a>enum QAbstractSlider::<span class="name">SliderChange</span></h3>
<div class="table"><table class="valuelist"><tr><th class="tblConst">Constant</th><th class="tblVal">Value</th></tr>
<tr><td class="topAlign"><code>QAbstractSlider::SliderRangeChange</code></td><td class="topAlign tblval"><code>0</code></td></tr>
<tr><td class="topAlign"><code>QAbstractSlider::SliderOrientationChange</code></td><td class="topAlign tblval"><code>1</code></td></tr>
<tr><td class="topAlign"><code>QAbstractSlider::SliderStepsChange</code></td><td class="topAlign tblval"><code>2</code></td></tr>
<tr><td class="topAlign"><code>QAbstractSlider::SliderValueChange</code></td><td class="topAlign tblval"><code>3</code></td></tr>
</table></div>
<!-- @@@SliderChange -->
</div>
<div class="prop">
<h2>Property Documentation</h2>
<!-- $$$invertedAppearance-prop$$$invertedAppearance$$$setInvertedAppearancebool -->
<h3 class="fn" id="invertedAppearance-prop"><a name="invertedAppearance-prop"></a><span class="name">invertedAppearance</span> : <span class="type">bool</span></h3>
<p>This property holds whether or not a slider shows its values inverted.</p>
<p>If this property is <code>false</code> (the default), the minimum and maximum will be shown in its classic position for the inherited widget. If the value is true, the minimum and maximum appear at their opposite location.</p>
<p>Note: This property makes most sense for sliders and dials. For scroll bars, the visual effect of the scroll bar subcontrols depends on whether or not the styles understand inverted appearance; most styles ignore this property for scroll bars.</p>
<p><b>Access functions:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><span class="name"><b>invertedAppearance</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setInvertedAppearance</b></span>(<i>bool</i>)</td></tr>
</table></div>
<!-- @@@invertedAppearance -->
<!-- $$$invertedControls-prop$$$invertedControls$$$setInvertedControlsbool -->
<h3 class="fn" id="invertedControls-prop"><a name="invertedControls-prop"></a><span class="name">invertedControls</span> : <span class="type">bool</span></h3>
<p>This property holds whether or not the slider inverts its wheel and key events.</p>
<p>If this property is <code>false</code>, scrolling the mouse wheel &quot;up&quot; and using keys like page up will increase the slider's value towards its maximum. Otherwise pressing page up will move value towards the slider's minimum.</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>invertedControls</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setInvertedControls</b></span>(<i>bool</i>)</td></tr>
</table></div>
<!-- @@@invertedControls -->
<!-- $$$maximum-prop$$$maximum$$$setMaximumint -->
<h3 class="fn" id="maximum-prop"><a name="maximum-prop"></a><span class="name">maximum</span> : <span class="type">int</span></h3>
<p>This property holds the slider's maximum value</p>
<p>When setting this property, the <a href="qabstractslider.html#minimum-prop">minimum</a> is adjusted if necessary to ensure that the range remains valid. Also the slider's current value is adjusted to be within the new range.</p>
<p><b>Access functions:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> int </td><td class="memItemRight bottomAlign"><span class="name"><b>maximum</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setMaximum</b></span>(<i>int</i>)</td></tr>
</table></div>
<!-- @@@maximum -->
<!-- $$$minimum-prop$$$minimum$$$setMinimumint -->
<h3 class="fn" id="minimum-prop"><a name="minimum-prop"></a><span class="name">minimum</span> : <span class="type">int</span></h3>
<p>This property holds the sliders's minimum value</p>
<p>When setting this property, the <a href="qabstractslider.html#maximum-prop">maximum</a> is adjusted if necessary to ensure that the range remains valid. Also the slider's current value is adjusted to be within the new range.</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>minimum</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setMinimum</b></span>(<i>int</i>)</td></tr>
</table></div>
<!-- @@@minimum -->
<!-- $$$orientation-prop$$$orientation$$$setOrientationQt::Orientation -->
<h3 class="fn" id="orientation-prop"><a name="orientation-prop"></a><span class="name">orientation</span> : <span class="type"><a href="../qtcore/qt.html#Orientation-enum">Qt::Orientation</a></span></h3>
<p>This property holds the orientation of the slider</p>
<p>The orientation must be <a href="../qtcore/qt.html#Orientation-enum">Qt::Vertical</a> (the default) or <a href="../qtcore/qt.html#Orientation-enum">Qt::Horizontal</a>.</p>
<p><b>Access functions:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> Qt::Orientation </td><td class="memItemRight bottomAlign"><span class="name"><b>orientation</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setOrientation</b></span>(<i>Qt::Orientation</i>)</td></tr>
</table></div>
<!-- @@@orientation -->
<!-- $$$pageStep-prop$$$pageStep$$$setPageStepint -->
<h3 class="fn" id="pageStep-prop"><a name="pageStep-prop"></a><span class="name">pageStep</span> : <span class="type">int</span></h3>
<p>This property holds the page step.</p>
<p>The larger of two natural steps that an abstract slider provides and typically corresponds to the user pressing PageUp or PageDown.</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>pageStep</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setPageStep</b></span>(<i>int</i>)</td></tr>
</table></div>
<p><b>See also </b><a href="qabstractslider.html#singleStep-prop">singleStep</a>.</p>
<!-- @@@pageStep -->
<!-- $$$singleStep-prop$$$singleStep$$$setSingleStepint -->
<h3 class="fn" id="singleStep-prop"><a name="singleStep-prop"></a><span class="name">singleStep</span> : <span class="type">int</span></h3>
<p>This property holds the single step.</p>
<p>The smaller of two natural steps that an abstract sliders provides and typically corresponds to the user pressing an arrow key.</p>
<p>If the property is modified during an auto repeating key event, behavior is undefined.</p>
<p><b>Access functions:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> int </td><td class="memItemRight bottomAlign"><span class="name"><b>singleStep</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setSingleStep</b></span>(<i>int</i>)</td></tr>
</table></div>
<p><b>See also </b><a href="qabstractslider.html#pageStep-prop">pageStep</a>.</p>
<!-- @@@singleStep -->
<!-- $$$sliderDown-prop$$$isSliderDown$$$setSliderDownbool -->
<h3 class="fn" id="sliderDown-prop"><a name="sliderDown-prop"></a><span class="name">sliderDown</span> : <span class="type">bool</span></h3>
<p>This property holds whether the slider is pressed down.</p>
<p>The property is set by subclasses in order to let the abstract slider know whether or not <a href="qabstractslider.html#tracking-prop">tracking</a> has any effect.</p>
<p>Changing the slider down property emits the <a href="qabstractslider.html#sliderPressed">sliderPressed</a>() and <a href="qabstractslider.html#sliderReleased">sliderReleased</a>() signals.</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>isSliderDown</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setSliderDown</b></span>(<i>bool</i>)</td></tr>
</table></div>
<!-- @@@sliderDown -->
<!-- $$$sliderPosition-prop$$$sliderPosition$$$setSliderPositionint$$$sliderMovedint -->
<h3 class="fn" id="sliderPosition-prop"><a name="sliderPosition-prop"></a><span class="name">sliderPosition</span> : <span class="type">int</span></h3>
<p>This property holds the current slider position</p>
<p>If <a href="qabstractslider.html#tracking-prop">tracking</a> is enabled (the default), this is identical to <a href="qabstractslider.html#value-prop">value</a>.</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>sliderPosition</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setSliderPosition</b></span>(<i>int</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="qabstractslider.html#sliderMoved">sliderMoved</a></b></span>(int <i>value</i>)</td></tr>
</table></div>
<!-- @@@sliderPosition -->
<!-- $$$tracking-prop$$$hasTracking$$$setTrackingbool -->
<h3 class="fn" id="tracking-prop"><a name="tracking-prop"></a><span class="name">tracking</span> : <span class="type">bool</span></h3>
<p>This property holds whether slider tracking is enabled</p>
<p>If tracking is enabled (the default), the slider emits the <a href="qabstractslider.html#valueChanged">valueChanged</a>() signal while the slider is being dragged. If tracking is disabled, the slider emits the <a href="qabstractslider.html#valueChanged">valueChanged</a>() signal only when the user releases the slider.</p>
<p><b>Access functions:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><span class="name"><b>hasTracking</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setTracking</b></span>(bool <i>enable</i>)</td></tr>
</table></div>
<p><b>See also </b><a href="qabstractslider.html#sliderDown-prop">sliderDown</a>.</p>
<!-- @@@tracking -->
<!-- $$$value-prop$$$value$$$setValueint$$$valueChangedint -->
<h3 class="fn" id="value-prop"><a name="value-prop"></a><span class="name">value</span> : <span class="type">int</span></h3>
<p>This property holds the slider's current value</p>
<p>The slider forces the value to be within the legal range: <a href="qabstractslider.html#minimum-prop">minimum</a> &lt;= <code>value</code> &lt;= <a href="qabstractslider.html#maximum-prop">maximum</a>.</p>
<p>Changing the value also changes the <a href="qabstractslider.html#sliderPosition-prop">sliderPosition</a>.</p>
<p><b>Access functions:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> int </td><td class="memItemRight bottomAlign"><span class="name"><b>value</b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setValue</b></span>(<i>int</i>)</td></tr>
</table></div>
<p><b>Notifier signal:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qabstractslider.html#valueChanged">valueChanged</a></b></span>(int <i>value</i>)</td></tr>
</table></div>
<!-- @@@value -->
</div>
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QAbstractSlider[overload1]$$$QAbstractSliderQWidget* -->
<h3 class="fn" id="QAbstractSlider"><a name="QAbstractSlider"></a>QAbstractSlider::<span class="name">QAbstractSlider</span>(<span class="type"><a href="qwidget.html#QWidget">QWidget</a></span> *<i>parent</i> = nullptr)</h3>
<p>Constructs an abstract slider.</p>
<p>The <i>parent</i> argument is sent to the <a href="qwidget.html">QWidget</a> constructor.</p>
<p>The <a href="qabstractslider.html#minimum-prop">minimum</a> defaults to 0, the <a href="qabstractslider.html#maximum-prop">maximum</a> to 99, with a <a href="qabstractslider.html#singleStep-prop">singleStep</a> size of 1 and a <a href="qabstractslider.html#pageStep-prop">pageStep</a> size of 10, and an initial <a href="qabstractslider.html#value-prop">value</a> of 0.</p>
<!-- @@@QAbstractSlider -->
<!-- $$$~QAbstractSlider[overload1]$$$~QAbstractSlider -->
<h3 class="fn" id="dtor.QAbstractSlider"><a name="dtor.QAbstractSlider"></a><code>[virtual] </code>QAbstractSlider::<span class="name">~QAbstractSlider</span>()</h3>
<p>Destroys the slider.</p>
<!-- @@@~QAbstractSlider -->
<!-- $$$actionTriggered[overload1]$$$actionTriggeredint -->
<h3 class="fn" id="actionTriggered"><a name="actionTriggered"></a><code>[signal] </code><span class="type">void</span> QAbstractSlider::<span class="name">actionTriggered</span>(<span class="type">int</span> <i>action</i>)</h3>
<p>This signal is emitted when the slider action <i>action</i> is triggered. Actions are <a href="qabstractslider.html#SliderAction-enum">SliderSingleStepAdd</a>, <a href="qabstractslider.html#SliderAction-enum">SliderSingleStepSub</a>, <a href="qabstractslider.html#SliderAction-enum">SliderPageStepAdd</a>, <a href="qabstractslider.html#SliderAction-enum">SliderPageStepSub</a>, <a href="qabstractslider.html#SliderAction-enum">SliderToMinimum</a>, <a href="qabstractslider.html#SliderAction-enum">SliderToMaximum</a>, and <a href="qabstractslider.html#SliderAction-enum">SliderMove</a>.</p>
<p>When the signal is emitted, the <a href="qabstractslider.html#sliderPosition-prop">sliderPosition</a> has been adjusted according to the action, but the <a href="qabstractslider.html#value-prop">value</a> has not yet been propagated (meaning the <a href="qabstractslider.html#valueChanged">valueChanged</a>() signal was not yet emitted), and the visual display has not been updated. In slots connected to this signal you can thus safely adjust any action by calling <a href="qabstractslider.html#sliderPosition-prop">setSliderPosition</a>() yourself, based on both the action and the slider's value.</p>
<p><b>See also </b><a href="qabstractslider.html#triggerAction">triggerAction</a>().</p>
<!-- @@@actionTriggered -->
<!-- $$$changeEvent[overload1]$$$changeEventQEvent* -->
<h3 class="fn" id="changeEvent"><a name="changeEvent"></a><code>[override virtual protected] </code><span class="type">void</span> QAbstractSlider::<span class="name">changeEvent</span>(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> *<i>ev</i>)</h3>
<p>Reimplemented from <a href="qwidget.html#changeEvent">QWidget::changeEvent</a>().</p>
<!-- @@@changeEvent -->
<!-- $$$event[overload1]$$$eventQEvent* -->
<h3 class="fn" id="event"><a name="event"></a><code>[override virtual protected] </code><span class="type">bool</span> QAbstractSlider::<span class="name">event</span>(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> *<i>e</i>)</h3>
<p>Reimplemented from <a href="qwidget.html#event">QWidget::event</a>().</p>
<!-- @@@event -->
<!-- $$$keyPressEvent[overload1]$$$keyPressEventQKeyEvent* -->
<h3 class="fn" id="keyPressEvent"><a name="keyPressEvent"></a><code>[override virtual protected] </code><span class="type">void</span> QAbstractSlider::<span class="name">keyPressEvent</span>(<span class="type"><a href="../qtgui/qkeyevent.html">QKeyEvent</a></span> *<i>ev</i>)</h3>
<p>Reimplemented from <a href="qwidget.html#keyPressEvent">QWidget::keyPressEvent</a>().</p>
<!-- @@@keyPressEvent -->
<!-- $$$rangeChanged[overload1]$$$rangeChangedintint -->
<h3 class="fn" id="rangeChanged"><a name="rangeChanged"></a><code>[signal] </code><span class="type">void</span> QAbstractSlider::<span class="name">rangeChanged</span>(<span class="type">int</span> <i>min</i>, <span class="type">int</span> <i>max</i>)</h3>
<p>This signal is emitted when the slider range has changed, with <i>min</i> being the new minimum, and <i>max</i> being the new maximum.</p>
<p><b>See also </b><a href="qabstractslider.html#minimum-prop">minimum</a> and <a href="qabstractslider.html#maximum-prop">maximum</a>.</p>
<!-- @@@rangeChanged -->
<!-- $$$repeatAction[overload1]$$$repeatAction -->
<h3 class="fn" id="repeatAction"><a name="repeatAction"></a><code>[protected] </code><span class="type"><a href="qabstractslider.html#SliderAction-enum">QAbstractSlider::SliderAction</a></span> QAbstractSlider::<span class="name">repeatAction</span>() const</h3>
<p>Returns the current repeat action.</p>
<p><b>See also </b><a href="qabstractslider.html#setRepeatAction">setRepeatAction</a>().</p>
<!-- @@@repeatAction -->
<!-- $$$setRange[overload1]$$$setRangeintint -->
<h3 class="fn" id="setRange"><a name="setRange"></a><code>[slot] </code><span class="type">void</span> QAbstractSlider::<span class="name">setRange</span>(<span class="type">int</span> <i>min</i>, <span class="type">int</span> <i>max</i>)</h3>
<p>Sets the slider's minimum to <i>min</i> and its maximum to <i>max</i>.</p>
<p>If <i>max</i> is smaller than <i>min</i>, <i>min</i> becomes the only legal value.</p>
<p><b>See also </b><a href="qabstractslider.html#minimum-prop">minimum</a> and <a href="qabstractslider.html#maximum-prop">maximum</a>.</p>
<!-- @@@setRange -->
<!-- $$$setRepeatAction[overload1]$$$setRepeatActionQAbstractSlider::SliderActionintint -->
<h3 class="fn" id="setRepeatAction"><a name="setRepeatAction"></a><code>[protected] </code><span class="type">void</span> QAbstractSlider::<span class="name">setRepeatAction</span>(<span class="type"><a href="qabstractslider.html#SliderAction-enum">QAbstractSlider::SliderAction</a></span> <i>action</i>, <span class="type">int</span> <i>thresholdTime</i> = 500, <span class="type">int</span> <i>repeatTime</i> = 50)</h3>
<p>Sets action <i>action</i> to be triggered repetitively in intervals of <i>repeatTime</i>, after an initial delay of <i>thresholdTime</i>.</p>
<p><b>See also </b><a href="qabstractslider.html#triggerAction">triggerAction</a>() and <a href="qabstractslider.html#repeatAction">repeatAction</a>().</p>
<!-- @@@setRepeatAction -->
<!-- $$$sliderChange[overload1]$$$sliderChangeQAbstractSlider::SliderChange -->
<h3 class="fn" id="sliderChange"><a name="sliderChange"></a><code>[virtual protected] </code><span class="type">void</span> QAbstractSlider::<span class="name">sliderChange</span>(<span class="type"><a href="qabstractslider.html#SliderChange-enum">QAbstractSlider::SliderChange</a></span> <i>change</i>)</h3>
<p>Reimplement this virtual function to track slider changes such as <a href="qabstractslider.html#SliderChange-enum">SliderRangeChange</a>, <a href="qabstractslider.html#SliderChange-enum">SliderOrientationChange</a>, <a href="qabstractslider.html#SliderChange-enum">SliderStepsChange</a>, or <a href="qabstractslider.html#SliderChange-enum">SliderValueChange</a>. The default implementation only updates the display and ignores the <i>change</i> parameter.</p>
<!-- @@@sliderChange -->
<!-- $$$sliderMoved -->
<h3 class="fn" id="sliderMoved"><a name="sliderMoved"></a><code>[signal] </code><span class="type">void</span> QAbstractSlider::<span class="name">sliderMoved</span>(<span class="type">int</span> <i>value</i>)</h3>
<p>This signal is emitted when <a href="qabstractslider.html#sliderDown-prop">sliderDown</a> is true and the slider moves. This usually happens when the user is dragging the slider. The <i>value</i> is the new slider position.</p>
<p>This signal is emitted even when tracking is turned off.</p>
<p><b>Note:</b> Notifier signal for property <a href="qabstractslider.html#sliderPosition-prop">sliderPosition</a>. </p><p><b>See also </b><a href="qabstractslider.html#tracking-prop">setTracking</a>(), <a href="qabstractslider.html#valueChanged">valueChanged</a>(), <a href="qabstractslider.html#sliderDown-prop">isSliderDown</a>(), <a href="qabstractslider.html#sliderPressed">sliderPressed</a>(), and <a href="qabstractslider.html#sliderReleased">sliderReleased</a>().</p>
<!-- @@@sliderMoved -->
<!-- $$$sliderPressed[overload1]$$$sliderPressed -->
<h3 class="fn" id="sliderPressed"><a name="sliderPressed"></a><code>[signal] </code><span class="type">void</span> QAbstractSlider::<span class="name">sliderPressed</span>()</h3>
<p>This signal is emitted when the user presses the slider with the mouse, or programmatically when <a href="qabstractslider.html#sliderDown-prop">setSliderDown</a>(true) is called.</p>
<p><b>See also </b><a href="qabstractslider.html#sliderReleased">sliderReleased</a>(), <a href="qabstractslider.html#sliderMoved">sliderMoved</a>(), and <a href="qabstractslider.html#sliderDown-prop">isSliderDown</a>().</p>
<!-- @@@sliderPressed -->
<!-- $$$sliderReleased[overload1]$$$sliderReleased -->
<h3 class="fn" id="sliderReleased"><a name="sliderReleased"></a><code>[signal] </code><span class="type">void</span> QAbstractSlider::<span class="name">sliderReleased</span>()</h3>
<p>This signal is emitted when the user releases the slider with the mouse, or programmatically when <a href="qabstractslider.html#sliderDown-prop">setSliderDown</a>(false) is called.</p>
<p><b>See also </b><a href="qabstractslider.html#sliderPressed">sliderPressed</a>(), <a href="qabstractslider.html#sliderMoved">sliderMoved</a>(), and <a href="qabstractslider.html#sliderDown-prop">sliderDown</a>.</p>
<!-- @@@sliderReleased -->
<!-- $$$timerEvent[overload1]$$$timerEventQTimerEvent* -->
<h3 class="fn" id="timerEvent"><a name="timerEvent"></a><code>[override virtual protected] </code><span class="type">void</span> QAbstractSlider::<span class="name">timerEvent</span>(<span class="type"><a href="../qtcore/qtimerevent.html">QTimerEvent</a></span> *<i>e</i>)</h3>
<p>Reimplemented from <a href="../qtcore/qobject.html#timerEvent">QObject::timerEvent</a>().</p>
<!-- @@@timerEvent -->
<!-- $$$triggerAction[overload1]$$$triggerActionQAbstractSlider::SliderAction -->
<h3 class="fn" id="triggerAction"><a name="triggerAction"></a><span class="type">void</span> QAbstractSlider::<span class="name">triggerAction</span>(<span class="type"><a href="qabstractslider.html#SliderAction-enum">QAbstractSlider::SliderAction</a></span> <i>action</i>)</h3>
<p>Triggers a slider <i>action</i>. Possible actions are <a href="qabstractslider.html#SliderAction-enum">SliderSingleStepAdd</a>, <a href="qabstractslider.html#SliderAction-enum">SliderSingleStepSub</a>, <a href="qabstractslider.html#SliderAction-enum">SliderPageStepAdd</a>, <a href="qabstractslider.html#SliderAction-enum">SliderPageStepSub</a>, <a href="qabstractslider.html#SliderAction-enum">SliderToMinimum</a>, <a href="qabstractslider.html#SliderAction-enum">SliderToMaximum</a>, and <a href="qabstractslider.html#SliderAction-enum">SliderMove</a>.</p>
<p><b>See also </b><a href="qabstractslider.html#actionTriggered">actionTriggered</a>().</p>
<!-- @@@triggerAction -->
<!-- $$$valueChanged -->
<h3 class="fn" id="valueChanged"><a name="valueChanged"></a><code>[signal] </code><span class="type">void</span> QAbstractSlider::<span class="name">valueChanged</span>(<span class="type">int</span> <i>value</i>)</h3>
<p>This signal is emitted when the slider value has changed, with the new slider <i>value</i> as argument.</p>
<p><b>Note:</b> Notifier signal for property <a href="qabstractslider.html#value-prop">value</a>. </p><!-- @@@valueChanged -->
<!-- $$$wheelEvent[overload1]$$$wheelEventQWheelEvent* -->
<h3 class="fn" id="wheelEvent"><a name="wheelEvent"></a><code>[override virtual protected] </code><span class="type">void</span> QAbstractSlider::<span class="name">wheelEvent</span>(<span class="type"><a href="../qtgui/qwheelevent.html">QWheelEvent</a></span> *<i>e</i>)</h3>
<p>Reimplemented from <a href="qwidget.html#wheelEvent">QWidget::wheelEvent</a>().</p>
<!-- @@@wheelEvent -->
</div>
        </div>
       </div>
   </div>
   </div>
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   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/>    Qt and respective logos are trademarks of The Qt Company Ltd.     in Finland and/or other countries worldwide. All other trademarks are property
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