Declaration

TIEPointerEvent = procedure(Sender: TObject; Event: TIEPointerEventType; Button: TMouseButton; Shift: TShiftState; X, Y: Integer; Pressure: Integer) of object;

Description

Occurs when a pointer interacts with the control.

Note: Pointer support requires Delphi 10.3 Rio or newer

OnPointer vs OnPointerEx

TIEPointerEvent is a simplified version of TIEPointerExEvent
TIEPointerExEvent provides a lot more detail about the pointer via the Info property, including pen rotation and tilt data.

Demo

Demos\Other\PointerEvent\PointerEvent.dpr

Example

procedure TMainForm.ImageEnView1Pointer(Sender: TObject; Event: TIEPointerEventType; Button: TMouseButton; Shift: TShiftState; X, Y: Integer; Pressure: Integer);
begin
  Caption := format( 'Pos: %d, %d - Pressure: %d', [ X, Y, Pressure ]);
end;

See Also

◼OnPointer
◼OnPointerEx
◼PointerDeviceCount
◼PenEffects

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