Re: [LINUX5250] New User Requires Help With Keyboard Re-mapping]

[Alstom Engineering Office <alstom@xxxxxxxxxxxx>]

Thank you for your reply, but I just can seem to get it working properly!

I using Version 0.16.3 of tn5250 on Linux Mandrake 8.1 with KDE.

I connecting to "gec400", which is defined in the hosts file as 198.25.23.3

I created a program shortcut on the desktop:
  Command:  /usr/local/bin/tn5250
  Run in Terminal: Yes
     Terminal Options: gec400

This works fine in running the tn5250 emulator.

I tried Command: /usr/local/share/bin/xt5250, but that did not work, it does
not connect at all ???? How can I run this script? (As it is recommended in
the HOWTO manual.) (It appears that the mapping does not work, because I
cannot run the xt5250 script.)

If I rather use tn5250 (as I am using now) what file (and how) must I change
to include the keyboard mapping? If it is in ~\.tn5250rc then what is the
format of the file, seeing that is is:
  gec400 {
      host = 198.25.23.3
  }

I modified the XTerm file in /usr/local/share/tn5250/ for the keys I wanted
to map, but it does not appear if it works:
Key pad plus as Field Plus:   <Key>KP_Add: string("\030") \n\
    It appears to be working - but only sometimes? Sometimes it displays a
"+" in stead of advancing to the next line / page.
Key pad enter as Field Plus:   <Key>KP_Enter: string("\030") \n\
   This does not work!
Page Down (not key pad page down) as New Line:   <Key>KP_Enter:
string("\033\012") \n\
Left Control as Reset (default):   <Key>Control_L: string("\022") \n\
   (This does NOT work. If I press Cntr L, it works (evern if I use the left
control key, buy if I press ONLY the Control Left is does NOTHING!)
Backspace does not work at all! When I press it, it displays a blank.

Where do you find a list of the keys on the keyboard descriptions, e.g.
KP_Left, Cotnrol_L, etc.


Thank you for your help so far.

Henk de Swardt
South Africa


On Thu 21 Feb 02 11:12, you wrote:
> -------- Original Message --------
> Subject: Re: [LINUX5250] New User Requires Help With Keyboard Re-mapping
> Date: Thu, 21 Feb 2002 02:27:14 -0600 (CST)
> From: Scott Klement <klemscot@klements.com>
> Reply-To: linux5250@midrange.com
> To: linux5250@midrange.com
>
> On Thu, 21 Feb 2002, Henk de Swardt wrote:
> > Please help.
> >
> > I am very new to Linux and tn5250! I must set-up the tn5250
> > terminal to access our MRP system, running on a AS400.
> >
> > I connect without any problem, but I have difficulty with
> > the keyboard re-mapping.
> >
> > The keyboard re-mapping will apply to all users.
> >
> > 1. Can I merely change the Xterm file in the
> >  /usr/local/share/tn5250/ directory to reflect the changes
> >  in the keyboard mapping, in stead of creating a file for
> >  each user?
>
> If you are running the xt5250 script, then yes, changing the XTerm file
> will affect keyboard mapping.  Yes, the changes affect everyone.
>
> If you are running tn5250 directly (such as in console mode) then the
> Xterm file has no affect on keyboard mapping.
>
> > 2. I tried to re-map the enter and plus keys on the keypad
> >  (KP_Enter and KP_Add), but it does not seem to be working
> >  properly. I used /033X in both instances, to make it
> >  ?field plus?. The plus key sometimes still place a ?+?
> >  when it is pressed???
>
> It doesn't sound like you're mapping is working.  In a numeric field,
> we make the "+" character act like a field plus, but in a non-numeric
> field it would show up as a normal "+" symbol.   If you want it to
> always
> behave as field plus, you need to map it to the Field Plus keycode.
>
> Again, keep in mind that the XTerm file does _nothing_ if you're not
> running the xt5250 version of the emulator.
>
> In the xt5250 version, KP_Add is mapped to field+ by default. (assuming
> of course that you're running a recent release of tn5250.) Field Plus is
> "\030" (Ctrl-X) not "\033X" (ESC-X)
>
> Keep in mind that "\" is different from "/".  In C and in Unix/Linux the
> "\" character is an "escaping character".  It starts special codes, such
> as control characters.  the "/" is not an escaping character, and would
> simply be sent to the terminal as-is if you put it in a string.
>
> > 3. What are the octal codes for ?reset? and ?New Line??
>
> Here's how you find out:
>
>    1)  type "man tn5250".  If you look down far enough it tells you that
>        Reset is "C-r" (which is an abbreviation for Control-R.  That
> means
>        you must hold down the Control key and press R)
>
>    2)  What you want to do is have your terminal send a C-r whenever
>        you press a certain key.  Most commonly, this is the left control
>        key.
>
>    3)  Looking at my handy-dandy ASCII chart, I see that C-r is ASCII
>         code 18 in decimal.  Since I need to know what that is in octal,
>         I divide it by 8, and I get 2 with a remainder of 2.  This means
>         that the octal code for C-r is 022.  (The leading zero tells the
>         computer that it's in octal)
>
>    4)  So now, since I want the Left Control key to send Reset, I add
>          a line like this to my XTerm file:
>             <Key>Control_L: string("\022") \n\
>
>    (This is already done for you by default in the current version of
>    tn5250, though)
>
> The man page says that the code for Newline is C-M-j.  That's a little
> weirder.  It means "Control-Meta-j" In our man pages, because it's
> familiar to most Unix people, we use the term "Meta" instead of
> "Escape".
> So, what you really want to send for Newline is Esc followed by
> Control-j.
>
> Again, I whip out my handy-dandy ASCII chart, and I find out that the
> Esc
> key is decimal 27, and that Control-j is decimal 10.   27 divded by 8 is
> 3 with a remainder of 3, so Esc is octal 033.  10 divided by 8 is 1 with
> a remainder of 2, so C-j is octal 012.
>
> Now I have to decide which key I want to map to newline.   Let's say I
> decided to map the Return key to newline, I'd do this:
>
>        <Key>Return: string("\033\012") \n\
>
> > PLEASE write replies in idiot-language.
>
> What makes you think I speak that language? :)
>
> > Thank you.
> >
> > Henk de Swardt
> > South Africa
>
> One more thing -- being new to Linux, please keep in mind that almost
> everything is case sensitive.  That means that "Return" and "RETURN"
> and "REturn" are 3 different words that cannot be used interchangably.
> If you're having trouble, one of the first things you'll want to do
> is make sure that you're using the correct capitalization.
>
> Hope some of this helps.   If you need more help, please make sure you
> tell me (a) what version number of tn5250 you have.  (You can do
> "tn5250 -version" to find out)  (b) Whether you're using the "xt5250"
> script, or just "tn5250" or ??  (c) exactly which keys you are trying to
> map to which keycodes.  (e.g. the "Left Control Key" to the "Reset"
> keycode)
>
> Good luck!
>
>
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