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  1.  Home
  2. SYSTEM21
  3. November 2005

Re: LDA Usage in Homegrown Apps and System21

There are commands included in the standard package of S/21 that can be used to capture and restore the current values of the LDA from within a CL program. 

PUTLDA stores the LDA
GETLDA restores the LDA...

As Jack suggests, this may be another viable solution, requires testing...



----Original Message Follows----
From: "Jack Welch" <welchj@xxxxxxxx>
Reply-To: System 21 Users <system21@xxxxxxxxxxxx>
To: "System 21 Users" <system21@xxxxxxxxxxxx>
Subject: Re: [SYSTEM21]   LDA Usage in Homegrown Apps and System21
Date: Thu, 24 Nov 2005 22:17:50 -0600 (CST)

Roshan,

You could create a generic CLP program to run all your
home grown programs.  Have the CLP save the LDA into
a Variable before calling the program, then restore the
LDA from the variable before exiting the program and
returning to the JBA environment.

--Jack
_________________________________________________


> Hi List,
>
> We've just bought System21 for it's Workflow functionality. With this, we
> also bought the System Manager suite of programs. We are hoping to migrate 
> our home grown applications to Application Manager menus and tasks.
>
> However one our biggest problems in doing this is that our applications use 
> the LDA extensively, and I know for a fact that we can't simply use our
> programs within System21 as the LDA would get corrupted.
>
> At present, the only option we see is changes in all our existing programs > if we are use the System21 menus... We've got the following suggestions so 
> far, but would like to hear from others out there who have been through a
> similar experience.
> 1. Move the usage of LDA to start from position 257 onwards.
> 2. Store the session values in a file - simulate the LDA, but using a file, 
> not the LDA.
> 3. Parameterise the programs and not use the LDA at all.
>
> Has anyone been through a similar situation before and if so, what options 
> did you'll have and what was the solution taken? In my previous life with
> with JBA & Geac, I've never come across any site that had an issue like
> this...
>
>
> Thanks in advance,
>
>
> Roshan Joseph
>
> Patrick Autocare,
> Melbourne,
> Australia
>
>
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>

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