Re: Retrieve the keys pressed on a Display file

["M. Lazarus" <mlazarus@xxxxxxxx>]

Doug,

 IIRC, Clear does not return an AID byte, but Print and Help do.

 -mark

At 6/27/07 04:57 PM, you wrote:
> Alan,
>
> Display File outlined in the above article for quite some time. A question
> > has been asked of me to see if its possible to capture the use of "OTHER"
> > keys
>
>
> In a word, no.  That's because the 5250 paradigm is designed for block
> communications, and most keystrokes are handled locally the the workstation
> controller (or equivalent).  The exceptions are the so-called Attention
> IDentification keys, or AID, which the WS controller signals back to the OS
> to get its Attention, and IDentify which key caused it.
>
> The AID generating keys are Enter, Fx, Roll/Page up/down, Home (when cursor
> in home position), record backspace (not character backspace), and if I
> mismember right, Clear.
>
> Normal alphabetic keys and Ctrl/Alt combos do to not generate an AID
> response to the system.  Because of OfficeVision, the 5250 data stream and
> WS controllers were enhanced with a so-called word processing mode, and the
> rules change.  But that isn't used with a DSPF or UIM panel etc, so isn't
> part of the equation here.
>
> Doug