Re: It's TGET not TPUT to get the data: Where do I start?

On Tue, May 25, 2010 at 3:03 PM, Mike Schwab <[email protected]>wrote:

>
>
> On Tue, May 25, 2010 at 4:44 PM, Ron Hudson <[email protected]<hudson.ra%40gmail.com>>
> wrote:
> >
> > On Tue, May 25, 2010 at 2:34 PM, PeterH <[email protected]<peterh5322%40rattlebrain.com>>
> wrote:
> >>
> >> On May 25, 2010, at 9:11 AM, steve donato wrote:
> >>
> >> > I think last responder ment TGET to get data and cursor location,
> >> > TPUT is for output. And I agree "Insert Cursor" is the IC attribute.
> >>
> >> Normally, TPUT is text, only, and without any "orders", such as IC,
> >> SF, etcetera, unless it is MODE=FULLSCR.
> >>
> >> TGET usually inputs the MODIFIED fields text, only.
> >
> > I am looking at  http://tommysprinkle.com/mvs/P3270/input.htm
> >
> > Where Tommy says:
> > When we issue the TGET macro with the ASIS parameter specified, TSO will
> issue a "Read Modified" command to the 3270 terminal.  The terminal will
> respond with (1) an AID  or Action ID character that identifies which key
> was the cause of input to be accepted (Enter, PKxx, PAx, Clear), (2) the
> location of the cursor when the input key was pressed and (3) fields with
> the MDT bit set.  The fields are returned starting with a x'11' followed by
> a two byte encoded buffer address followed by the data from the field.  By
> scanning for the special code x'11' we can find the start and end of each
> data field.
> >
> > I think this looks like:
> >
> > Aid/Action ID
> >
> > Cursor Location
> >
> > 11 [Field Location] Field data
> >
> You will need to know which field location is what field in your
> screen / file layout.
>
> sure I have all those. for now I just wanna get a look at what TGET
returns..



>
> > 11 [Field Location] Field data
> >
> > Followed by ??
> >
> > <for each field with mdt set>
> >
> Is there a total input buffer length?
> Prefill the buffer with binary zeros and test for that bein the end of
> screen?
> Or send a "Last screen field" with MDT on?
>

Or set MDT on all fields and expect them all returned?


>
> --
> Mike A Schwab, Springfield IL USA
> Where do Forest Rangers go to get away from it all?
>  
>