1 ## Copyright (C) 2010-2012 Ben Abbott
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} {@var{res} =} isprop (@var{h}, @var{prop})
21 ## Return true if @var{prop} is a property of the object with handle @var{h}.
25 ## Author: Ben Abbott <bpabbott@mac.com>
27 function res = isprop (h, prop)
29 if (nargin < 1 || nargin > 2)
33 if (! all (ishandle (h)))
34 error ("isprop: first input argument must be a handle");
35 elseif (! ischar (prop))
36 error ("isprop: second input argument must be string");
39 res = false (size (h));
50 %!assert (isprop (0, "foobar"), false)
52 %!assert (isprop (0, "screenpixelsperinch"), true)
54 %!assert (isprop (zeros (2, 3), "visible"), true (2, 3))