(* Copyright (C) 1992, Digital Equipment Corporation                         *)
(* All rights reserved.                                                      *)
(* See the file COPYRIGHT for a full description.                            *)
(*                                                                           *)
(* Last modified on Fri Jul 31 18:05:49 PDT 1992 by meehan *)
(*      modified on Tue Jun 16 13:08:55 PDT 1992 by muller *)
(*      modified on Mon Jun 15 10:01:11 1992 by mhb *)

(* A "FeedbackVBT" is a feedback that provides no visual
   feedback at all.  It's useful as a place-holder or super-type. *)

INTERFACE FeedbackVBT;

IMPORT FeedbackClass, Filter, VBT;

TYPE
  T <: Public;
  Public = Filter.T OBJECT
           METHODS
             init (ch: VBT.T; feedbackclass: FC := NIL): T
           END;

  FC <: FeedbackClass.T;

END FeedbackVBT.