(* This file is part of the tutorial
   http://cairo.forge.ocamlcore.org/tutorial/
*)

let () =
  let surface = Cairo.Image.create Cairo.Image.ARGB32 120 120 in
  let cr = Cairo.create surface in
  (* Examples are in 1.0 x 1.0 coordinate space *)
  Cairo.scale cr 120. 120.;

  (* Drawing code goes here *)
  Cairo.set_source_rgb cr 0. 0. 0.;
  Cairo.paint cr ~alpha:0.5;

  (* Write output *)
  Cairo.PNG.write surface "paint.png"