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Retrieve the name of a program

How can I retrieve, in a trigger program, the name of the program (RPG,CLP,DFU...) that is trying to make a change on a database file?

There's no data on the invoking program that's passed to a trigger program. Thus, it requires additional programming on your behalf. Many customers have done this by using the OS/400 message-handling APIs: QMHSNDPM (Send Program Message) and QMHRCVPM (Receive Program Message). First, the trigger program uses API QMHSNDPM to send a message to the message queue of the changing program's call-stack entry. API QMHRCVPM then retrieves the message from the message queue, obtaining the name of the program associated with that entry in the process.

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