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## Copyright (C) 2005-2013 John W. Eaton
##
## This file is part of Octave.
##
## Octave is free software; you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 3 of the License, or (at
## your option) any later version.
##
## Octave is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING. If not, see
## <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {} isfigure (@var{h})
## Return true if @var{h} is a figure graphics handle and false otherwise.
##
## If @var{h} is a matrix then return a logical array which is true where
## the elements of @var{h} are figure graphics handles and false where
## they are not.
## @seealso{isaxes, ishandle}
## @end deftypefn
## Author: jwe
function retval = isfigure (h)
if (nargin != 1)
print_usage ();
endif
hlist = ishandle (h);
if (any (hlist))
retval(hlist) = strcmp (get (h(hlist), "type"), "figure");
else
retval = hlist;
endif
endfunction
%!test
%! hf = figure ("visible", "off");
%! unwind_protect
%! assert (isfigure (hf));
%! assert (! isfigure (-hf));
%! unwind_protect_cleanup
%! close (hf);
%! end_unwind_protect
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