gboolean grab_pointer_window(gboolean grab, ObCursor cur, Window win);
gint grab_server(gboolean grab);
+gboolean grab_on_keyboard();
+gboolean grab_on_pointer();
+
void grab_button(guint button, guint state, Window win, guint mask);
void grab_button_full(guint button, guint state, Window win, guint mask,
int pointer_mode, ObCursor cursor);