CL Programming
This chapter discusses some of the ways that messages can be used to
communicate between users and programs. Messages can be sent:
- From one system user to another system user, even if the receiver of the
messages is not currently using the system
- From one OPM program or ILE procedure to another OPM program or ILE
procedure
- From a program or procedure to a system user, even if the receiver of the
messages is not currently using the system
Interactive system users can send only immediate messages and
replies.
OPM programs or ILE procedures can send immediate messages or predefined
messages with user-defined data. In addition, programs or procedures
can:
- Receive messages
- Retrieve a message description from a message file and place it into a
program variable
- Remove messages from a message queue
- Monitor for messages
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