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  2. RPG400-L
  3. June 2006

Re: Adding a parm to a procedure/function


On 27/06/2006, at 11:04 PM, Turnidge, Dave wrote:
I have changed the "PI" PrcCmd to include the second parameter, AND have changed the ERRC0100 data structure to have all fields. That is, instead 
of just having BytPro, I have BytPro, BytAvl, MsgId and MsgDta.

Now when I debug my program, the %Error IF statement shows no error,
however ERRC0100 does show that there was an error, and MsgId contains
the message ID that I am looking for.

So, why does the CallP(e) not trigger the %Error any more? And second,
and probably more important, what is the "correct" way to accomplish
what I am trying to do?
Given that you haven't supplied any of the code showing how this used to be handled and how you now handle it, my GUESS is that Carsten's code set BytPro to zero thus informing the API that it should send exceptions which would cause %ERROR to be turned on. Your code PROBABLY sets BytPro to the length of ERRC0100 thus instructing the API to no longer send exceptions but to populate the error code structure instead.
You'll need to check BytAvl > 0 to determine is an error occurred and process accordingly. %ERROR will never be set unless the API crashes.
You'll also need to determine the number of parameters received (%PARMS) and only populate the MsgIdRtn field if the number of parameters is 2 or more.
As for whether you are "on the right track". This is one possible approach that many would find acceptable. 

Regards,
Simon Coulter.
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