attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
XChangeWindowAttributes(ob_display, window,
CWEventMask|CWDontPropagate, &attrib_set);
attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
XChangeWindowAttributes(ob_display, window,
CWEventMask|CWDontPropagate, &attrib_set);