--- /dev/null
+/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
+
+ client.h for the Openbox window manager
+ Copyright (c) 2006 Mikael Magnusson
+ Copyright (c) 2003-2008 Dana Jansens
+
+ 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.
+
+ See the COPYING file for a copy of the GNU General Public License.
+*/
+
+#ifndef __ping_h
+#define __ping_h
+
+#include <X11/Xlib.h>
+#include <glib.h>
+
+struct _ObClient;
+
+/*!
+ Notifies when the client application isn't responding to pings, or when it
+ starts responding again.
+ @param dead TRUE if the app isn't responding, FALSE if it starts responding
+ again
+*/
+typedef void (*ObPingEventHandler) (struct _ObClient *c, gboolean dead);
+
+void ping_start(struct _ObClient *c, ObPingEventHandler h);
+void ping_stop(struct _ObClient *c);
+
+void ping_got_pong(Time timestamp);
+
+#endif