uses
  printers; 

procedure TForm1.Button1Click(Sender: TObject); 
begin 
  printer.BeginDoc; 
  //Each logical unit is mapped to 0.1 millimeter. 
  //Positive x is to the right; positive y is up. 
  SetMapMode(printer.Canvas.Handle, MM_LOMETRIC); 
  with printer.Canvas do 
  begin 
    //font 5 mm height 
    Font.Height := 50; 
    Font.Name   := 'Verdana'; 
    TextOut(250, - 110, 'SwissDelphiCenter'); 
    TextOut(250, - 180, 'http://www.swissdelphicenter.ch'); 
    MoveTo(250, - 240); 
    //Draw a line of 7,5 cm 
    LineTo(1000, - 240); 
  end; 
  printer.EndDoc;
end;