RE: INFDS layout for Display Files

["Smith, Nelson" <NSmith@xxxxxxxxxxx>]

OK, I RTFM'ed and it didn't help much. I must be really dense.

So, let's say I created two files, INFDS_DSPF and INFDS_POST, with the two
different field layouts.

In my workstation file spec, I use the keyword INFDS(DSPF_IO_Info).

Then, I create two data structures (DSPF_IO_Info and DSPF_Attribute) that
bring in the two external file layouts.

DSPF_IO_Info works like it always did, supplying information after each file
op.

Then on the POST operation, if I understand what you are saying below, what
I want to do is:
        1.)  put the Device name in factor 1,
        2.)  leave factor 2 blank, and
        3.)  put the alternate data structure name, "DSPF_Attribute", in the
result field.

Is that correct?

However, the way I read the manual, if I leave factor 2 blank, I "must
specify the data structure name that has been used in the INFDS keyword for
the file specification in the result field". Doesn't sound like it's
optional. It's only optional if I do specify the workstation file name in
factor 2.  In that case, it will use the data structure name specified on
the INFDS keyword.  Either way, I don't seem to have the choice of
specifying the second data structure name, DSPF_Attribute.

What am I missing here? How do tell the POST operation to put the attribute
data into the attribute data structure?


> Ahhhh.  Did you read up on the POST operation code?  Result field is an
> optional data structure.  In your case, I'd leave the standard INFDS alone
> and create a new external file for the POST layout and specify that DS as
> the result field.  You'll want to carefully read this section, because the
> mere presence of POST _even if it never executes_ can change the way the
> standard INFDS operates.
>
>   --buck
>
>


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