TRulerBox.OnRulerPosChange

Declaration

property OnRulerPosChange: TRulerGripPosChangeEvent;

Description

Occurs when ViewPos changes.

Example

procedure TForm1.RulerPosChange(Sender: TObject; RulerDir: TRulerDir; Grip: integer; NewPos: Double);
begin
  case RulerDir of
    rdHorizontal : ShowMessage( format( 'Grip %d moved on horizontal ruler', [ Grip ]));
    rdVertical   : ShowMessage( format( 'Grip %d moved on vertical ruler', [ Grip ]));
  end;
end;

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