ocaml/otherlibs/graph/graphicsX11.ml

42 lines
1.5 KiB
OCaml

(***********************************************************************)
(* *)
(* Objective Caml *)
(* *)
(* Pierre Weis and Jun Furuse, projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 2001 Institut National de Recherche en Informatique et *)
(* en Automatique. All rights reserved. This file is distributed *)
(* under the terms of the GNU Library General Public License. *)
(* *)
(***********************************************************************)
(* $Id$ *)
(* Module [GraphicsX11]: additional graphics primitives for the X Windows system *)
type window_id = string
external window_id : unit -> window_id = "gr_window_id"
let subwindows = Hashtbl.create 13
external open_subwindow : int -> int -> int -> int -> window_id
= "gr_open_subwindow"
external close_subwindow : window_id -> unit
= "gr_close_subwindow"
let open_subwindow ~x ~y ~width ~height =
let wid = open_subwindow x y width height in
Hashtbl.add subwindows wid ();
wid
;;
let close_subwindow wid =
if Hashtbl.mem subwindows wid then begin
close_subwindow wid;
Hashtbl.remove subwindows wid
end else
raise (Graphics.Graphic_failure ("close_subwindow: no such subwindow: " ^ wid))
;;