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Reference for unit 'Controls' (#lcl)

TControl.OnDragDrop

Event handler for the drop of a control onto this control.

Declaration

Source position: controls.pp line 1229

protected property TControl.OnDragDrop: TDragDropEvent read FOnDragDrop write FOnDragDrop;

The handler determines what shall happen when another control is dropped onto this (Sender) control.

Sender is the target control onto which the Source control is dropped.

X and Y are the client coordinates of the drop.