hab (HAB) - input

      Anchor-block handle.

    pid (PID) - input

      Process identity.

    tid (TID) - input

      Thread identity.

    hmq (HMQ) - returns

      Queue handle.

      NULL

        The thread has not created a message queue.
      OTHER
        Message-queue handle of the message queue created by the thread specified.

      [Back: WinQueueFromID Return Value - hmq]
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