Re: 3270 screens

On Mon, 20 Sep 2010 03:04:17 -0000, cedarlakebuzzards wrote:

>I have a program that does full screen 3270 operations. it seems to
>work correctly except when the letters A or B (X'C1', X'C2') follow the
>attribute byte. 1 or more characters are then skipped. If I insert a
>space between the attribute and the letter, it display correctly.

>My question is does anyone know if the TSO TPUT macro alters the
>datastream? maybe I should look at the TN3270 emulator?

>Thanks.
>Ed

The TPUT macro should not alter the data in the buffer you pass
to TPUT.  Sounds like you need to trap the actual data stream
given to TPUT - I would be surprised if the glitch came from any
further downstream than that, but it is theoretically possible, of
course.

Some TN3270 clients provide the facility of logging a data stream
trace - that would be a good point of capture.

If you wrote the program, then TSO TEST may well be all you
need to locate the problem.

In any event, check the data stream passed to TPUT first.

Cheers,
Greg