--- /dev/null
+## Copyright (C) 2010 Martin Hepperle
+##
+## This program 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 2 of the License, or
+## (at your option) any later version.
+##
+## This program 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 this program; If not, see <http://www.gnu.org/licenses/>.
+
+## -*- texinfo -*-
+## @deftypefn {Function file} {@var{P} =} errordlg (@var{MESSAGE} [,@var{TITLE}])
+##
+## Displays the @var{MESSAGE} using an error dialog box.
+## The @var{TITLE} can be used optionally to decorate the dialog caption.
+## The return value is always 1.
+##
+## @end deftypefn
+## @seealso{helpdlg, inputdlg, listdlg, questdlg, warndlg}
+
+function ret = errordlg(message,varargin)
+
+ switch length (varargin)
+ case 0
+ title = "Error Dialog";
+ otherwise
+ title = varargin{1};
+ endswitch
+
+ ret = java_invoke ("org.octave.JDialogBox", "errordlg", message, title);
+
+endfunction