Int 2F Fn CB11  - Communicating Applications Specification - Get Queue St  [F]

   AX = CB11h
   DL = queue to get status of
       00h task queue
       01h receive queue
       02h log queue
       03h send events (v1.2+)
       04h receive events (v1.2+)

Return: AX >= 0     total number of changes made to queue, modulo 32768
       BX = number of control files currently in queue
       CX = number of received files (zero for task and log queues)
   AX < 0  error code (see AX=CB01h)

See Also: AX=CB12h