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## Copyright (C) 2008-2013 David Bateman
##
## 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} {} refresh ()
## @deftypefnx {Function File} {} refresh (@var{h})
## Refresh a figure, forcing it to be redrawn.
##
## When called without an argument the current figure is redrawn. Otherwise,
## the figure with graphic handle @var{h} is redrawn.
## @seealso{drawnow}
## @end deftypefn
function refresh (h)
if (nargin > 1)
print_usage ();
elseif (nargin == 1)
if (! isfigure (h))
error ("refresh: H must be a valid figure handle");
endif
else
h = gcf ();
endif
set (h, "__modified__", "on");
drawnow ();
endfunction
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