%ISHANDLE True for graphics handles.
%   ISHANDLE(H) returns an array that contains 1's where the elements
%   of H are valid graphics handles and 0's where they are not.

%   Copyright (c) 1984-98 by The MathWorks, Inc.
%   $Revision: 1.5 $  $Date: 1997/11/21 23:34:43 $
%   Built-in function.
