QGraphicsSceneHelpEvent Class▲
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Header: QGraphicsSceneHelpEvent
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CMake:
find_package(Qt6 REQUIRED COMPONENTS Widgets)
target_link_libraries(mytarget PRIVATE Qt6::Widgets)
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qmake: QT += widgets
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Inherits: QGraphicsSceneEvent
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Group: QGraphicsSceneHelpEvent is part of graphicsview-api
Detailed Description▲
When a QGraphicsView receives a QEvent of type QEvent::ToolTip, it creates a QGraphicsSceneHelpEvent, which is forwarded to the scene. You can set a tooltip on a QGraphicsItem with setToolTip(); by default QGraphicsScene displays the tooltip of the QGraphicsItem with the highest z-value (i.e, the top-most item) under the mouse position.
QGraphicsView does not forward events when "What's This" and status tip help is requested. If you need this, you can reimplement QGraphicsView::viewportEvent() and forward QStatusTipEvent events and QEvents of type QEvent::WhatsThis to the scene.
See Also▲
See also QEvent
Member Function Documentation▲
[virtual] QGraphicsSceneHelpEvent::~QGraphicsSceneHelpEvent()▲
Destroys the event.
QPointF QGraphicsSceneHelpEvent::scenePos() const▲
Returns the position of the mouse cursor in scene coordinates at the moment the help event was sent.
See Also▲
See also screenPos()