Re: Internal Display file overlay

Hi Jim,

DFRWRT is a parameter on the CRTDSPF command, not a DDS spec.

Regards,
Peter Dow
Dow Software Services, Inc.
909 425-0194 voice
909 425-0196 fax


----- Original Message -----
From: "Jim Langston" <jimlangston@conexfreight.com>
To: <RPG400-L@midrange.com>
Sent: Friday, June 15, 2001 2:51 PM
Subject: Re: Internal Display file overlay


> Ahh, thank you.  FRCDTA did the trick, as I'm already doing EXCEPT
> to write data to this record to display.
>
> A few other people suggested DFRWRT(*NO), but in this case I don't want
> the rest of the records to display immediately, only this one.
>
> I was going through the DDS PDF from the IBM site again, and have
> gotten up as far as EDTWRD.  I think I'm going to continue reading it
> through again for Display File Keywords.  Incidentally, I didn't see
DFRWTR
> in the list of keywords for display files (I even scrolled back and
checked).
> I wonder why (not)?
>
> Thanks!
>
> Regards,
>
> Jim Langston
>
> Me transmitte sursum, Caledoni!
>
> Scott Klement wrote:
> >
> > Normally, OS/400 waits until you do an input operation from the screen
> > before it actually displays the screen to the user.  The idea is that
> > if you're going to output multiple times, it's more efficient to do all
> > the output into a buffer, and then dump the buffer to the terminal once.
> >
> > The FRCDTA DDS keyword is used to override this behavior.  When using
> > FRCDTA, every time you do a write operation to your display file, the
> > screen will appear for the user.   This is assuming, of course, that
> > you used DDS to create your screen...  The only other method of making
> > display files that I can think of is via the Sys/36 environment, and
> > I'm not entirely sure how you'd do a "FRCDTA" in that situation.
> >
> > Then, in your RPG program, you need to do an output operation to the
> > display when you want it to show up.   As you pointed out, you can't
> > use the WRITE operation unless you also pass a data structure that
> > displays the fields to be displayed.   The other alternative, is to
> > use EXCPT, and create output specs for your display -- that would be
> > the traditional way of working with a "program described" file.
> >
> > HTH
> >
> > On Fri, 15 Jun 2001, Jim Langston wrote:
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