1 ## Copyright (C) 2008-2012 David Bateman
3 ## This file is part of Octave.
5 ## Octave is free software; you can redistribute it and/or modify it
6 ## under the terms of the GNU General Public License as published by
7 ## the Free Software Foundation; either version 3 of the License, or (at
8 ## your option) any later version.
10 ## Octave is distributed in the hope that it will be useful, but
11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 ## General Public License for more details.
15 ## You should have received a copy of the GNU General Public License
16 ## along with Octave; see the file COPYING. If not, see
17 ## <http://www.gnu.org/licenses/>.
20 ## @deftypefn {Function File} {} ishghandle (@var{h})
21 ## Return true if @var{h} is a graphics handle and false otherwise.
24 function retval = ishghandle (h)
25 ## This function is just included for compatibility as Octave has
26 ## no simulink equivalent.
27 retval = ishandle (h);
31 %! hf = figure ("visible", "off");
33 %! assert (ishghandle (hf));
34 %! assert (!ishghandle (-hf));
37 %! assert (ishghandle (ax));
38 %! assert (!ishghandle (-ax));
39 %! assert (ishghandle (l));
40 %! assert (!ishghandle (-l));
42 %! assert (ishghandle (p));
43 %! assert (!ishghandle (-p));
45 %! assert (ishghandle (s));
46 %! assert (!ishghandle (-s));
48 %! assert (ishghandle (t));
49 %! assert (!ishghandle (-t));
51 %! assert (ishghandle (i));
52 %! assert (!ishghandle (-i));
54 %! assert (ishghandle (hg));
55 %! assert (!ishghandle (-hg));
56 %! unwind_protect_cleanup