void grab_server(gboolean grab);
void grab_button(guint button, guint state, Window win, guint mask);
void grab_button_full(guint button, guint state, Window win, guint mask,
void grab_server(gboolean grab);
void grab_button(guint button, guint state, Window win, guint mask);
void grab_button_full(guint button, guint state, Window win, guint mask,