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This handler determines the action on an drop onto this control, in a drag-drop operation.
Source position: controls.pp line 1449
protected property TControl.OnDragDrop : TDragDropEvent |
Unlike for a drag-dock operation, no default action is associated with an drag-drop; the OnDragDrop handler is the only way to do something meaningful on an drag-drop.
TControl.TDragDropEvent |
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Invokes the OnDragDrop handler, when a dragged object is dropped onto this control. |
lazarus-ccr.sourceforge.net |