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<td >Qt 5.9</td><td ><a href="qtcore-index.html">Qt Core</a></td><td ><a href="qtcore-module.html">C++ Classes</a></td><td >QChildEvent</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-functions">Public Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QChildEvent Class</h1>
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<p>The <a href="qchildevent.html">QChildEvent</a> class contains event parameters for child object 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 <QChildEvent></span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += core</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="qevent.html">QEvent</a></td></tr></table></div><ul>
<li><a href="qchildevent-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="qchildevent.html#QChildEvent">QChildEvent</a></b>(Type <i>type</i>, QObject *<i>child</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qchildevent.html#added">added</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QObject *</td><td class="memItemRight bottomAlign"><b><a href="qchildevent.html#child">child</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qchildevent.html#polished">polished</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qchildevent.html#removed">removed</a></b>() const</td></tr>
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<li class="fn">6 public functions inherited from <a href="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="qevent.html#properties">QEvent</a></li>
<li class="fn">1 static public member inherited from <a href="qevent.html#static-public-members">QEvent</a></li>
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<h2 id="details">Detailed Description</h2>
<p>The <a href="qchildevent.html">QChildEvent</a> class contains event parameters for child object events.</p>
<p>Child events are sent immediately to objects when children are added or removed.</p>
<p>In both cases you can only rely on the child being a <a href="qobject.html">QObject</a> (or, if <a href="qobject.html#isWidgetType">QObject::isWidgetType</a>() returns <code>true</code>, a <a href="../qtwidgets/qwidget.html">QWidget</a>). This is because in the <a href="qevent.html#Type-enum">QEvent::ChildAdded</a> case the child is not yet fully constructed; in the <a href="qevent.html#Type-enum">QEvent::ChildRemoved</a> case it might have already been destructed.</p>
<p>The handler for these events is <a href="qobject.html#childEvent">QObject::childEvent</a>().</p>
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<h2>Member Function Documentation</h2>
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<h3 class="fn" id="QChildEvent"><a name="QChildEvent"></a>QChildEvent::<span class="name">QChildEvent</span>(<span class="type"><a href="qevent.html#Type-enum">Type</a></span> <i>type</i>, <span class="type"><a href="qobject.html">QObject</a></span> *<i>child</i>)</h3>
<p>Constructs a child event object of a particular <i>type</i> for the <i>child</i>.</p>
<p><i>type</i> can be <a href="qevent.html#Type-enum">QEvent::ChildAdded</a>, <a href="qevent.html#Type-enum">QEvent::ChildRemoved</a>, or <a href="qevent.html#Type-enum">QEvent::ChildPolished</a>.</p>
<p><b>See also </b><a href="qchildevent.html#child">child</a>().</p>
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<h3 class="fn" id="added"><a name="added"></a><span class="type">bool</span> QChildEvent::<span class="name">added</span>() const</h3>
<p>Returns <code>true</code> if <a href="qevent.html#type">type</a>() is <a href="qevent.html#Type-enum">QEvent::ChildAdded</a>; otherwise returns false.</p>
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<h3 class="fn" id="child"><a name="child"></a><span class="type"><a href="qobject.html">QObject</a></span> *QChildEvent::<span class="name">child</span>() const</h3>
<p>Returns the child object that was added or removed.</p>
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<h3 class="fn" id="polished"><a name="polished"></a><span class="type">bool</span> QChildEvent::<span class="name">polished</span>() const</h3>
<p>Returns <code>true</code> if <a href="qevent.html#type">type</a>() is <a href="qevent.html#Type-enum">QEvent::ChildPolished</a>; otherwise returns false.</p>
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<h3 class="fn" id="removed"><a name="removed"></a><span class="type">bool</span> QChildEvent::<span class="name">removed</span>() const</h3>
<p>Returns <code>true</code> if <a href="qevent.html#type">type</a>() is <a href="qevent.html#Type-enum">QEvent::ChildRemoved</a>; otherwise returns false.</p>
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