[Info-vax] HELP! Need to create script (or program) to capture OPCOM requests

[TonyMcG]

This sounds similar to something I've done. I was told that we didn't have the budget to afford fancy stuff like ABS for tape management, so I had to write something myself.
I started with Jim Duff's CATCH_OPCOM package (http://www.eight-cubed.com/catch_opcom.zip), then added some extra code to parse the OPCOM messages, looking specifically for the requests from BACKUP to load another tape. I extracted the DeviceName and NodeName, then called LIB$SPAWN (simple but effective) to run a DCL command file to use the appropriate MRU ROBOT command to move the desired tape into the drive.
It may not be elegant, but it works.