[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'Controls' (#lcl)

TDragManager.DragStart

Starts dragging.

Declaration

Source position: controls.pp line 481

public procedure TDragManager.DragStart(

  AControl: TControl;

  AImmediate: Boolean;

  AThreshold: Integer

); virtual; abstract;

Description

A DragObject must be created, depending on the Control.DragKind. The mouse has to be captured, and visual feedback must be initialized.