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Hi Jerry
We had the same problem
A kajillion screens with multiple F keys, that when pressed do something,
but no real estate on the screen to show what that F key is for
We changed it so that F11 would display a window showing what function
keys are available from the screen they just came from and what the
function key would do
The difference was that instead of APIOPTIONS doing the call based upon
what was pressed- the process would pass what key was chosen BACK to the
calling program and let the calling program do whatever it needed to do
It took quite a bit of coding to achieve this - but no recursive calls
Alan Shore
E-mail : ASHORE@xxxxxxxx
Phone [O] : (631) 200-5019
Phone [C] : (631) 880-8640
'If you're going through hell, keep going.'
Winston Churchill
-----Original Message-----
From: RPG400-L [mailto:rpg400-l-bounces@xxxxxxxxxxxxxxxxxx] On Behalf Of
(WalzCraft) Jerry Forss
Sent: Friday, August 09, 2019 11:51 AM
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: [EXTERNAL] Recursive calls
Disclaimer... I inherited this mess.
There are bunch of screens in separate programs that are full of function
keys.
The function keys are sometimes the same, some are the same but different
function and yet others that the Fkey exists only on 1 screen. I am
talking about maybe 20 screens in 15 pgms.
Because of the limited space on screens the descriptions of the Fkeys are
very short. F5=Hst, F6=Cmt.
The users have to know that they need to get to screen 4 (pgm A) to use
this FKey and screen 6 (pgm G) to use that FKey. They are CONSTANTLY screen
hopping to get to where they want to be.
I am trying convince them I would like to make a standard Fkey (F10) that
will call APIOPTIONS that brings up a list that calls the required pgms.
That way I can also add security they selected users can only see selected
options. I can also display long descriptions of what the options are.
I want to then remove all the fkeys from all the screens replacing with
F10 that calls APIOPTIONS.
Now the problem is that by doing this recursive calls can happen when pgm
A calls APIOPTIONS. They select opt to display comments. They press F10
that calls APIOPTIONS again because they want to display history.
Pgm will throw recursive call.
I think in Cobol it allows this.
Is there some secret voodoo that I can do that will allow me (in a
controlled fashion) to do recursive calls.
Realistically they would only go maybe 5 deep. I could control by having 5
versions of the APIOPTIONS and know which to call but would rather not.
Jerry Forss
Information Technology Team
WalzCraft
608-781-6355 EXT 2530
jforss@xxxxxxxxxxxxx
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