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                # QGraphicsSceneHelpEvent Class Reference ## [[QtGui](index.htm) module] 該QGraphicsSceneHelpEvent類提供事件時,工具提示請求。[More...](#details) 繼承[QGraphicsSceneEvent](qgraphicssceneevent.html)。 ### Methods * `QPointF scenePos (self)` * `QPoint screenPos (self)` * * * ## Detailed Description 該QGraphicsSceneHelpEvent類提供事件時,工具提示請求。 當[QGraphicsView](qgraphicsview.html)收到[QEvent](qevent.html)類型[QEvent.ToolTip](qevent.html#Type-enum),它會創建一個QGraphicsSceneHelpEvent ,被轉發到了現場。您可以在設置的工具提示[QGraphicsItem](qgraphicsitem.html)同[setToolTip()](qgraphicsitem.html#setToolTip);默認[QGraphicsScene](qgraphicsscene.html)顯示的工具提示[QGraphicsItem](qgraphicsitem.html)最高的z值下的鼠標位置(即最上面的項目) 。 [QGraphicsView](qgraphicsview.html)不轉發事件時,["What's This"](qwhatsthis.html)和[status tip](qstatustipevent.html)幫助請求。如果你需要,你可以重新實現[QGraphicsView.viewportEvent](qgraphicsview.html#viewportEvent)( )和遠期[QStatusTipEvent](qstatustipevent.html)事件和[QEvents](qevent.html)類型[QEvent.WhatsThis](qevent.html#Type-enum)到現場。 * * * ## Method Documentation ``` QPointF QGraphicsSceneHelpEvent.scenePos (self) ``` [ 返回鼠標光標在現場的位置,此刻的幫助事件被送往坐標。 ](qpointf.html) [**See also**](qpointf.html) [screenPos](qgraphicsscenehelpevent.html#screenPos)( ) 。 ``` QPoint QGraphicsSceneHelpEvent.screenPos (self) ``` [ 返回鼠標光標在屏幕上的位置,此刻的幫助下事件被送往坐標。 ](qpoint.html) [**See also**](qpoint.html) [scenePos](qgraphicsscenehelpevent.html#scenePos)( ) 。
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