Working on a problem with TN5250 recently, it came to my attention that
we're not completely implementing the various keyboard states.

In particular, we don't seem to differentiate between these states:
Normal Locked, Pre-Help, Post-Help, Hardware Error

I started working on implementing this function, but I've hit a roadblock.
the 5494 functions reference manual (the book that describes the 5250 data
stream) says that when a user hits HELP in Pre-Help error state, that
(I'm paraphrasing) the 5250 client should send back a help AID key with
the SRC code of the error as the data stream data.

This SRC would be the blinking '0005' that you might see in the left
corner of your greenscreen terminal, etc.

My question is... does anyone have a list of these SRCs and when they
should be used?   I know that 0005 is a keying error, but what other
SRCs are there, and when would we use them?

The 5494 Functions Reference manual doesn't seem to give this information,
nor do the related RFCs...


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