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<td >Qt 5.9</td><td ><a href="qtgui-index.html">Qt GUI</a></td><td ><a href="qtgui-module.html">C++ Classes</a></td><td >QFocusEvent</td></tr></table><table class="buildversion"><tr>
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<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QFocusEvent Class</h1>
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<p>The <a href="qfocusevent.html">QFocusEvent</a> class contains event parameters for widget focus events. <a href="#details">More...</a></p>
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<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QFocusEvent></span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += gui</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="../qtcore/qevent.html">QEvent</a></td></tr></table></div><ul>
<li><a href="qfocusevent-members.html">List of all members, including inherited members</a></li>
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<h2 id="public-functions">Public Functions</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qfocusevent.html#QFocusEvent">QFocusEvent</a></b>(Type <i>type</i>, Qt::FocusReason <i>reason</i> = Qt::OtherFocusReason)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qfocusevent.html#gotFocus">gotFocus</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qfocusevent.html#lostFocus">lostFocus</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> Qt::FocusReason </td><td class="memItemRight bottomAlign"><b><a href="qfocusevent.html#reason">reason</a></b>() const</td></tr>
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<li class="fn">6 public functions inherited from <a href="../qtcore/qevent.html#public-functions">QEvent</a></li>
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<h3>Additional Inherited Members</h3>
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<li class="fn">1 property inherited from <a href="../qtcore/qevent.html#properties">QEvent</a></li>
<li class="fn">1 static public member inherited from <a href="../qtcore/qevent.html#static-public-members">QEvent</a></li>
<li class="fn">2 protected variables inherited from <a href="../qtcore/qevent.html#protected-variables">QEvent</a></li>
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<h2 id="details">Detailed Description</h2>
<p>The <a href="qfocusevent.html">QFocusEvent</a> class contains event parameters for widget focus events.</p>
<p>Focus events are sent to widgets when the keyboard input focus changes. Focus events occur due to mouse actions, key presses (such as <b>Tab</b> or <b>Backtab</b>), the window system, popup menus, keyboard shortcuts, or other application-specific reasons. The reason for a particular focus event is returned by <a href="qfocusevent.html#reason">reason</a>() in the appropriate event handler.</p>
<p>The event handlers <a href="../qtwidgets/qwidget.html#focusInEvent">QWidget::focusInEvent</a>(), <a href="../qtwidgets/qwidget.html#focusOutEvent">QWidget::focusOutEvent</a>(), <a href="../qtwidgets/qgraphicsitem.html#focusInEvent">QGraphicsItem::focusInEvent</a> and <a href="../qtwidgets/qgraphicsitem.html#focusOutEvent">QGraphicsItem::focusOutEvent</a>() receive focus events.</p>
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<p><b>See also </b><a href="../qtwidgets/qwidget.html#setFocus-1">QWidget::setFocus</a>(), <a href="../qtwidgets/qwidget.html#focusPolicy-prop">QWidget::setFocusPolicy</a>(), and <a href="../qtwidgets/focus.html">Keyboard Focus in Widgets</a>.</p>
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<h2>Member Function Documentation</h2>
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<h3 class="fn" id="QFocusEvent"><a name="QFocusEvent"></a>QFocusEvent::<span class="name">QFocusEvent</span>(<span class="type"><a href="../qtcore/qevent.html#Type-enum">Type</a></span> <i>type</i>, <span class="type"><a href="../qtcore/qt.html#FocusReason-enum">Qt::FocusReason</a></span> <i>reason</i> = Qt::OtherFocusReason)</h3>
<p>Constructs a focus event object.</p>
<p>The <i>type</i> parameter must be either <a href="../qtcore/qevent.html#Type-enum">QEvent::FocusIn</a> or <a href="../qtcore/qevent.html#Type-enum">QEvent::FocusOut</a>. The <i>reason</i> describes the cause of the change in focus.</p>
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<h3 class="fn" id="gotFocus"><a name="gotFocus"></a><span class="type">bool</span> QFocusEvent::<span class="name">gotFocus</span>() const</h3>
<p>Returns <code>true</code> if <a href="../qtcore/qevent.html#type">type</a>() is <a href="../qtcore/qevent.html#Type-enum">QEvent::FocusIn</a>; otherwise returns false.</p>
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<h3 class="fn" id="lostFocus"><a name="lostFocus"></a><span class="type">bool</span> QFocusEvent::<span class="name">lostFocus</span>() const</h3>
<p>Returns <code>true</code> if <a href="../qtcore/qevent.html#type">type</a>() is <a href="../qtcore/qevent.html#Type-enum">QEvent::FocusOut</a>; otherwise returns false.</p>
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<h3 class="fn" id="reason"><a name="reason"></a><span class="type"><a href="../qtcore/qt.html#FocusReason-enum">Qt::FocusReason</a></span> QFocusEvent::<span class="name">reason</span>() const</h3>
<p>Returns the reason for this focus event.</p>
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