(* $Id$ *)

type visual_options = "GDK_GL_" [
  | `USE_GL
  | `BUFFER_SIZE
  | `LEVEL
  | `RGBA
  | `DOUBLEBUFFER
  | `STEREO
  | `AUX_BUFFERS
  | `RED_SIZE
  | `GREEN_SIZE
  | `BLUE_SIZE
  | `ALPHA_SIZE
  | `DEPTH_SIZE
  | `STENCIL_SIZE
  | `ACCUM_GREEN_SIZE
  | `ACCUM_ALPHA_SIZE
]