Re: Character at a time screen I/0?

James,

I understand that Office

Vision is able to do it so I believe it is possible.  This needs to work
with 5250 terminals and emulators, so some javascript and a web browser
won't work here.  Anyone know how?

Office Vision did it by putting the WS controller in "WP (Word Processing)
Mode".   The first docs which I found on that were in the S/36 Functions
Reference Manual, because WP Mode was first available for use with
DisplayWrite/36.  WP mode is a beast though, and from what I could tell, I'm
not sure the docs were entirely complete even back then.

I don't think the Dynamic Screen Manager APIs directly support WP mode
either (IIRC), so you can't use their higher level interface and would be
doing all the bit twiddling yourself.  And even then, WP mode doesn't cause
the WS controller to pass back each character as it is typed.  However,
instead of only happening with so-called Attention IDentification (AID) keys
like Enter and Fx, it happens in many more instances too.  However, a buffer
in the WS is still used for general keystrokes as I recall.

These days, I think the 5250 data stream documentation is in the 5494
Functions Reference Manual.  Be aware that WP mode is mutually exclusive
with DP mode, so you won't be able to use any DDS formats or UIM panel
groups at the same time.

Perhaps if you explain why you "need" character at a time IO we can make
alternative suggestions.

Doug