function Hf=mmgcf%MMGCF Get Current Figure if it Exists.% MMGCF returns the handle of the current figure if it exists.% If no current figure exists, MMGCF returns an empty handle.%% Note that the function GCF is different. It creates a figure% and returns its handle if it does not exist.% D.C. Hanselman, University of Maine, Orono, ME, 04469% 3/10/95% Copyright (c) 1996 by Prentice Hall, Inc.Hf=get(0,'Children');if isempty(Hf)	returnelse	Hf=get(0,'CurrentFigure');end