(***********************************************************************)

(*                                                                     *)

(*                 MLTk, Tcl/Tk interface of OCaml                     *)

(*                                                                     *)

(*    Francois Rouaix, Francois Pessaux, Jun Furuse and Pierre Weis    *)

(*               projet Cristal, INRIA Rocquencourt                    *)

(*            Jacques Garrigue, Kyoto University RIMS                  *)

(*                                                                     *)

(*  Copyright 2002 Institut National de Recherche en Informatique et   *)

(*  en Automatique and Kyoto University.  All rights reserved.         *)

(*  This file is distributed under the terms of the GNU Library        *)

(*  General Public License, with the special exception on linking      *)

(*  described in file LICENSE found in the OCaml source tree.          *)

(*                                                                     *)

(***********************************************************************)

(* $Id$ *)

(* The code run on initialisation, in addition to normal Tk code

 * NOTE: camltk has not fully been initialised yet

 *)

external tcl_eval : string -> string

        =  "camltk_tcl_eval"

let tcl_command s = ignore (tcl_eval s);;

open Printf

let dynload args =

  List.iter Dynlink.loadfile args

(* Default modules include everything from

let default_modules = []

*)

(* [caml::run foo.cmo .. bar.cmo] is now available from Tcl *)

let init () =

  Dynlink.init();

  (* Make it unsafe by default, with everything available *)

  Dynlink.allow_unsafe_modules true;

  Dynlink.add_interfaces [] [];

  let s = register_callback Widget.dummy dynload in

  tcl_command (sprintf "proc caml::run {l} {camlcb %s l}" s)

let _ =

  Printexc.print init ()

(* A typical master program would then

 *   caml::run foo.cmo

 *     # during initialisation, "foo" was registered as a tcl procedure

 *   foo x y z

 *     # proceed with some Tcl code calling foo

 *)