TControl.OnStartDrag property
Event handler signalled for the start of a dragging operation.
Declaration
property OnStartDrag: TStartDragEvent read FOnStartDrag write FOnStartDrag;Description
OnStartDrag is a
TStartDragEvent property with the
event handler signalled when a drag operation is started for the control. Use
the event handler to perform actions needed when the drag operation is
started, such customizing the drag cursor or initializing related drag event
handlers.
The Sender argument is the TControl instance for the event
notification.
The DragObject argument returns the TDragControlObject allocated
by the drag manager when the drag operation was started.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.