From the ISPF main menu, press PF1.
Select General information.
Select PA keys
This will explain the PA1 (ATTN) and PA2 (RESHOW) functions, as used by ISPF.
Next, you will want to see how these keys are mapped for your emulator. IIRC
PCOMM also has a pop-up keypad for these and other functions.
--
Tom Marchant
On Mon, 18 Feb 2019 22:20:08 +0000, Farley, Peter x23353 wrote:
>[Dual-posted to ISPF-L and IBM-MAIN]
>
>On my employer's z/OS 2.2 system and as far back as they have employed me
>(OS/390 R10 IIRC), pressing "Attention" (Esc on my PCOMM keyboard map) while
>in an ISPF screen "refreshes" the screen to the last stable state, so if you
>accidentally erased a whole line of program code or JCL you can recover what
>was there before the erase as long as you didn't press Enter or any PF/PA key
>before pressing "Attention".
>
>On a friend's z/OS system (not sure of the release), pressing "Attention" at
>any ISPF screen causes the terminal to be taken out of service (VTAM INACT).
>
>My question is where and how does ISPF determine how to respond to "Attention"
>to refresh the screen instead of making the terminal INACT? Or is that a VTAM
>function/setting of some kind? If it is VTAM, where is it specified?
>
>Just curious here, no actual problem to be solved ("Doctor! Doctor! It hurts
>when I do that!"; "Well, don't do that!").
>
>Peter
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