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Breadcrumbs go here --> <li><a href="modules.html">Modules</a></li> <li><a href="qtgui.html">QtGui</a></li> <li>QGraphicsSceneHelpEvent</li> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#public-functions">Public Functions</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <h1 class="title">QGraphicsSceneHelpEvent Class Reference</h1> <!-- $$$QGraphicsSceneHelpEvent-brief --> <p>The QGraphicsSceneHelpEvent class provides events when a tooltip is requested. <a href="#details">More...</a></p> <!-- @@@QGraphicsSceneHelpEvent --> <pre class="cpp"> <span class="preprocessor">#include <QGraphicsSceneHelpEvent></span></pre><p><b>Inherits: </b><a href="qgraphicssceneevent.html">QGraphicsSceneEvent</a>.</p> <p>This class was introduced in Qt 4.2.</p> <ul> <li><a href="qgraphicsscenehelpevent-members.html">List of all members, including inherited members</a></li> </ul> <a name="public-functions"></a> <h2>Public Functions</h2> <table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscenehelpevent.html#dtor.QGraphicsSceneHelpEvent">~QGraphicsSceneHelpEvent</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QPointF </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscenehelpevent.html#scenePos">scenePos</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QPoint </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscenehelpevent.html#screenPos">screenPos</a></b> () const</td></tr> </table> <ul> <li class="fn">1 public function inherited from <a href="qgraphicssceneevent.html#public-functions">QGraphicsSceneEvent</a></li> <li class="fn">6 public functions inherited from <a href="qevent.html#public-functions">QEvent</a></li> </ul> <h3>Additional Inherited Members</h3> <ul> <li class="fn">1 property inherited from <a href="qevent.html#properties">QEvent</a></li> <li class="fn">1 static public member inherited from <a href="qevent.html#static-public-members">QEvent</a></li> </ul> <a name="details"></a> <!-- $$$QGraphicsSceneHelpEvent-description --> <div class="descr"> <h2>Detailed Description</h2> <p>The QGraphicsSceneHelpEvent class provides events when a tooltip is requested.</p> <p>When a <a href="qgraphicsview.html">QGraphicsView</a> receives a <a href="qevent.html">QEvent</a> of type <a href="qevent.html#Type-enum">QEvent::ToolTip</a>, it creates a QGraphicsSceneHelpEvent, which is forwarded to the scene. You can set a tooltip on a <a href="qgraphicsitem.html">QGraphicsItem</a> with <a href="qgraphicsitem.html#setToolTip">setToolTip()</a>; by default <a href="qgraphicsscene.html">QGraphicsScene</a> displays the tooltip of the <a href="qgraphicsitem.html">QGraphicsItem</a> with the highest z-value (i.e, the top-most item) under the mouse position.</p> <p><a href="qgraphicsview.html">QGraphicsView</a> does not forward events when <a href="qwhatsthis.html">"What's This"</a> and <a href="qstatustipevent.html">status tip</a> help is requested. If you need this, you can reimplement <a href="qgraphicsview.html#viewportEvent">QGraphicsView::viewportEvent</a>() and forward <a href="qstatustipevent.html">QStatusTipEvent</a> events and <a href="qevent.html">QEvents</a> of type <a href="qevent.html#Type-enum">QEvent::WhatsThis</a> to the scene.</p> </div> <p><b>See also </b><a href="qevent.html">QEvent</a>.</p> <!-- @@@QGraphicsSceneHelpEvent --> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$~QGraphicsSceneHelpEvent[overload1]$$$~QGraphicsSceneHelpEvent --> <h3 class="fn"><a name="dtor.QGraphicsSceneHelpEvent"></a>QGraphicsSceneHelpEvent::<span class="name">~QGraphicsSceneHelpEvent</span> ()</h3> <p>Destroys the event.</p> <!-- @@@~QGraphicsSceneHelpEvent --> <!-- $$$scenePos[overload1]$$$scenePos --> <h3 class="fn"><a name="scenePos"></a><span class="type"><a href="qpointf.html">QPointF</a></span> QGraphicsSceneHelpEvent::<span class="name">scenePos</span> () const</h3> <p>Returns the position of the mouse cursor in scene coordinates at the moment the help event was sent.</p> <p><b>See also </b><a href="qgraphicsscenehelpevent.html#screenPos">screenPos</a>().</p> <!-- @@@scenePos --> <!-- $$$screenPos[overload1]$$$screenPos --> <h3 class="fn"><a name="screenPos"></a><span class="type"><a href="qpoint.html">QPoint</a></span> QGraphicsSceneHelpEvent::<span class="name">screenPos</span> () const</h3> <p>Returns the position of the mouse cursor in screen coordinates at the moment the help event was sent.</p> <p><b>See also </b><a href="qgraphicsscenehelpevent.html#scenePos">scenePos</a>().</p> <!-- @@@screenPos --> </div> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2013 Digia Plc and/or its subsidiaries. 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