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Event handler used to draw the docking image in a drag and dock operation.
Source position: controls.pp line 523
type TDrawDockImageEvent = procedure( |
Sender: TObject; |
AOldRect: TRect; |
ANewRect: TRect; |
AOperation: TDockImageOperation |
); |
TDrawDockImageEvent is an object procedure type which specifies an event handler used to draw the docking image for TDragDockObject instances. TDrawDockImageEvent is the type used to implement the OnDrawDockImage variable in the Controls unit.
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Routine used to draw dock images in drag/dock operations |