Opening Specific Queues

To open specific message queues in WebSphere MQ, use the following code:

CALL 'MQOPEN'
    USING by value HCONN, by reference OBJDESC,
    by value OPTS, by reference HQUEUE,
    COMPCODE, REASON

in the following modes:

INPUT Mode:

Variable	Description	Definition
HCONN	S9(9) BINARY handle to queue manager	User-defined
OBJDESC	Structure that identifies the object to be opened	cmqodv.cpy
OPTS	S9(9) BINARY options that control the action of MQOPEN	User-defined

The available OPTS S9(9) BINARY options are specified in "cmqv.cpy". From the options that are available, at least one of the following options must be specified:

MQOO-BROWSE - Open in browse messages
MQOO-INPUT - Open in read messages
MQOO-OUTPUT - Open to write messages
MQOO-SET - Open to set properties of objects
MQOO-INQUIRE - Open to inquire about objects

To specify multiple options, add them together.

OUTPUT Mode:

Variable	Description	Definition
HQUEUE	S9(9) BINARY handle to queue	User-defined
COMPCODE	S9(9) BINARY returns the completion code	User-defined
REASON	S9(9) BINARY returns the reason	User-defined