open Protocol
(* Implementation of the tk_optionMenu *)

let create ~parent ~variable ?name values =
  let w = Widget.new_atom "menubutton" ~parent ?name in
  let mw = Widget.new_atom "menu" ~parent:w ~name:"menu" in 
  (* assumes .menu naming *)
  let res = 
     tkEval [|TkToken "tk_optionMenu";
              TkToken (Widget.name w);
              cCAMLtoTKtextVariable variable;
              TkTokenList (List.map ~f:(fun x -> TkToken x) values)|] in
   if res <> Widget.name mw then
     raise (TkError "internal error in Optionmenu.create")
   else
     w, mw