Not late at all.
The copy-n-paste point makes me wonder if the fonts are actually mapped
to ASCII values.
I don't know graphical environments well enough to analyze it. But it
would mean that, yes, there *is* A/E translation happening even in the
graphical 3270 emulators. (In hopes of not steering Juan wrong with what
I said before.)
-- R; <><
On 10/10/23 14:19, Steve Thompson wrote:
I am replying a bit late to this.
However, when you do a copy/paste from the TN3270 screen to Notepad
(as an example), it then becomes "ASCII". Same for copy to Word.
Now, if you copy from your workstation and paste into the TN3270
emulator, it gets converted/translated to "EBCDIC" and watch out for
the ] [, and others becoming goofy.
Just thought you might need that bit of info. I've used QWS3270,
EXTRA, VISTA, HOD (Host On Demand), and one or two others.
Steve Thompson
On 10/10/2023 12:18 PM, [email protected] wrote:
Hi!
I want to understand how TN3270 emulation works regarding convertion
of characters (between EBCDIC and ASCII, and viceversa).
This is how I think it works (more or less), but I am not sure at
all. So please let me know about any mistakes.
Let suppose that you use a TN3270 emulator program to access the ISPF
browser to display a dataset. Let also assume, to simplify, that it
contains just a single character, an "A".In DASD, what is indeed
stored is X'C1' or, to be more accurate, BINARY'1100 0001'. When you
BROWSE the dataset, then the Mainframe sends to the TN3270 PC client
exactly X'C1' (BIN'1100 0001'). No convertion is done at the
Mainframe side. Then, when the TN3270 client receives X'C1', because
it knows that this is a TN3270 session and that its configured
CODEPAGE is say 500, it realizes that X'C1' corresponds to an "A"
displayable character. And, before sending the instruction to display
it on the PC screen, it converts X'C1' to X'41'.
Is this more or less how this works?
Thanks in advnace for your help,
Juan Mautalen
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