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diff --git a/octave_packages/zenity-0.5.7/zenity_notification.m b/octave_packages/zenity-0.5.7/zenity_notification.m
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+## Copyright (C) 2006 Søren Hauberg
+## 
+## 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} zenity_notification(@var{text}, @var{icon})
+## Displays an icon with a text in the notification area.
+## The variable @var{text} sets the text in the notification area, and the
+## optional variable @var{icon} determines which icon to show.
+## @var{icon} can be either @code{info}, @code{warning}, @code{question},
+## and @code{error}.
+##
+## @seealso{zenity_calendar, zenity_list, zenity_progress, zenity_entry, zenity_message,
+## zenity_text_info, zenity_file_selection}
+## @end deftypefn
+
+function zenity_notification(text, icon)
+  if (nargin == 0 || !ischar(text))
+    print_usage();
+  endif
+  
+  icon = "";
+  if (nargin > 1 && ischar(icon))
+    icon = sprintf('--window-icon="%s"', icon);
+  endif
+  
+  cmd = sprintf('zenity --notification --text="%s" %s', text, icon);
+  [status, output] = system(cmd);
+  if (status == -1)
+    error("zenity_notification: %s", output);
+  endif
+endfunction