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Is there any way for an RPG to determine what program called it?
Two ways.a) You can send a program message to your caller, and then retrieve that message. In the informaition for the message, it'll tell the program it was sent from, and the program it was sent to. You can use the QMHSNDPM and QMHRCVPM APIs to send & receive a message.
I'm pretty sure there's an example of this (though, it may be CL) in the Midrange.com FAQ.
b) You can use the QWVRCSTK API to retrieve the call stack, and see which program precedes yours.
The problem with BOTH of these solutions is performance. This'll significantly slow down the process of writing records. For some applications, that won't matter, for some it will... if performance is an issue, you might want to do some benchmarks and check it out.
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