MSGBLOK
A message request block (MSGBLOK), the parameter list passed to
the message builder, contains the following information:
- Requested message number
- Destination node and user ID (if any)
- Override routing and severity codes
- Information about any variables to be placed in the message text.
The MSGBLOK also contains information about any Command Response Interface (CRI) options that may have been specified. Also, if the message is issued from a private message repository, the MSGBLOK can contain the pointer to that message repository and a conversion repository.