BUFLEN (10-digit signed integer) - input

Length in bytes of the BUFFER area.

Zero can be specified for messages that have no data, or if the message is to be removed from the queue and the data discarded (GMATM must be specified in this case).

Note:

The length of the longest message that it is possible to read from the queue is given by the MaxMsgLength queue attribute; see Attributes for queues.