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<title>Qt 4.0: QHoverEvent Class Reference</title>
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<td align="right" valign="top" width="230"><img src="images/trolltech-logo.png" align="right" width="203" height="32" border="0" /></td></tr></table><h1 align="center">QHoverEvent Class Reference</h1>
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<p>The QHoverEvent class contains parameters that describe a mouse event. <a href="#details">More...</a></p>
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<pre>#include <QHoverEvent></pre><p>Part of the <a href="qtgui.html">QtGui</a> module.</p>
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<p>Inherits <a href="qevent.html">QEvent</a>.</p>
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<li><a href="qhoverevent-members.html">List of all members, including inherited members</a></li>
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<a name="public-functions"></a>
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<h3>Public Functions</h3>
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<li><div class="fn"/><b><a href="qhoverevent.html#QHoverEvent">QHoverEvent</a></b> ( Type <i>type</i>, const QPoint & <i>pos</i>, const QPoint & <i>oldPos</i> )</li>
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<li><div class="fn"/>const QPoint & <b><a href="qhoverevent.html#oldPos">oldPos</a></b> () const</li>
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<li><div class="fn"/>const QPoint & <b><a href="qhoverevent.html#pos">pos</a></b> () const</li>
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<li><div 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><div class="fn"/>1 property inherited from <a href="qevent.html#properties">QEvent</a></li>
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<a name="details"></a>
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<h2>Detailed Description</h2>
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<p>The QHoverEvent class contains parameters that describe a mouse event.</p>
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<p>Mouse events occur when a mouse cursor is moved into, out of, or within a widget, and if the widget has the <a href="qt.html#WidgetAttribute-enum">Qt::WA_Hover</a> attribute.</p>
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<p>The function <a href="qhoverevent.html#pos">pos</a>() gives the current cursor position, while <a href="qhoverevent.html#oldPos">oldPos</a>() gives the old mouse position.</p>
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<h2>Member Function Documentation</h2>
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<h3 class="fn"><a name="QHoverEvent"></a>QHoverEvent::QHoverEvent ( <a href="qevent.html#Type-enum">Type</a> <i>type</i>, const <a href="qpoint.html">QPoint</a> & <i>pos</i>, const <a href="qpoint.html">QPoint</a> & <i>oldPos</i> )</h3>
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<p>Constructs a hover event object.</p>
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<p>The <i>type</i> parameter must be <a href="qevent.html#Type-enum">QEvent::HoverEnter</a>, <a href="qevent.html#Type-enum">QEvent::HoverLeave</a>, or <a href="qevent.html#Type-enum">QEvent::HoverMove</a>.</p>
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<p>The <i>pos</i> is the current mouse cursor's position relative to the receiving widget, while <i>oldPos</i> is the previous mouse cursor's position relative to the receiving widget.</p>
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<h3 class="fn"><a name="oldPos"></a>const <a href="qpoint.html">QPoint</a> & QHoverEvent::oldPos () const</h3>
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<p>Returns the previous position of the mouse cursor, relative to the widget that received the event. If there is no previous position, oldPos() will return the same position as <a href="qhoverevent.html#pos">pos</a>().</p>
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<p>On <a href="qevent.html#Type-enum">QEvent::HoverEnter</a> events, this position will always be <a href="qpoint.html">QPoint</a>(-1, -1).</p>
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<p>See also <a href="qhoverevent.html#pos">pos</a>().</p>
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<h3 class="fn"><a name="pos"></a>const <a href="qpoint.html">QPoint</a> & QHoverEvent::pos () const</h3>
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<p>Returns the position of the mouse cursor, relative to the widget that received the event.</p>
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<p>On <a href="qevent.html#Type-enum">QEvent::HoverLeave</a> events, this position will always be <a href="qpoint.html">QPoint</a>(-1, -1).</p>
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<p>See also <a href="qhoverevent.html#oldPos">oldPos</a>().</p>
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