decode_osc_control
decode_osc_control(root, "platform does not support",
decode_osc_control(root, "not requesting control; platform does not support",
decode_osc_control(root, "OS assumes control of",
decode_osc_control(root, "OS now controls", control);
decode_osc_control(root, "OS requested", requested);
decode_osc_control(root, "platform willing to grant", control);