MQSEL_* (Special Selector Values)
| MQSEL_ANY_SELECTOR | -30001 | X'FFFF8ACF' |
| MQSEL_ANY_USER_SELECTOR | -30002 | X'FFFF8ACE' |
| MQSEL_ANY_SYSTEM_SELECTOR | -30003 | X'FFFF8ACD' |
| MQSEL_ALL_SELECTORS | -30001 | X'FFFF8ACF' |
| MQSEL_ALL_USER_SELECTORS | -30002 | X'FFFF8ACE' |
| MQSEL_ALL_SYSTEM_SELECTORS | -30003 | X'FFFF8ACD' |