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+/* $Id$
+ * $URL$
+ *
+ * generic grouping of widget timers that have been set to the same
+ * update interval, thus allowing synchronized updates
+ *
+ * Copyright (C) 2010 Martin Zuther <code@mzuther.de>
+ * Copyright (C) 2010 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
+ *
+ * This file is part of LCD4Linux.
+ *
+ * LCD4Linux 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, or (at your option)
+ * any later version.
+ *
+ * LCD4Linux 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, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+
+#ifndef _TIMER_GROUP_H_
+#define _TIMER_GROUP_H_
+
+int timer_add_group(void (*callback) (void *data), const int interval);
+int timer_remove_group(void (*callback) (void *data), const int interval);
+void timer_process_group(void *data);
+void timer_exit_group(void);
+
+int timer_add_widget(void (*callback) (void *data), void *data, const int interval, const int one_shot);
+int timer_remove_widget(void (*callback) (void *data), void *data);
+
+#endif