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Reference for unit 'Controls' (#lcl)

TControl.DoStartDrag

Signals the OnStartDrag event handler.

Declaration

Source position: controls.pp line 1472

protected procedure TControl.DoStartDrag(

var DragObject: TDragObject

); virtual;

DragObject

Object instance (TDragObject) for the event notification.

TControl.OnStartDrag		Event handler signalled for the start of a dragging operation.
TDragObject		Base class for managing drag operations and user feedback.