AIX Version 4.3 Differences Guide

For example, in a German UTF-8 locale environment, you would get the following
response by the lskbd command:
# lskbd
The current software keyboard map = /usr/lib/nls/loc/DE_DE.lftkeyboard
But a closer examination of the relevant keyboard map files reveals that they are
symbolic links to the regular C locale LFT keyboard map:
/usr/lib/nls/loc/C.lftkeymap.
For a full graphical Euro symbol enablement, you have to be in an X environment.
The associated X server has an attached keyboard, and the server uses mapping
tables to manage the mapping of keyboard events. The mapping of an X server
keyboard can be changed by using the xmodmap command. This command
converts the keyboard so that it returns the key symbol supported by the system.
At startup of the X server, a query to the ODM returns the locale that determined
the keyboard map for the LFT pseudo device driver; that is, the swkb_path attribute
of lft0 is examined for the currently used locale for the keyboard map. In the next
step, the xmodmap command defines the proper keyboard mapping to the server
according to the found locale.
When characters are typed in on the keyboard reach the server, the characters
are in the form of key codes. These key codes are converted into keysyms (key
symbols), or if applicable, into a pair of keysym/modifier as defined by the table
provided in the client.(A modifier indicates the state of the keyboard as
determined by the modifier keys: Shift, Lock, Ctrl, Alt and Alt Graphic. The
keyboard table was defined to the sever by the xmodmap command and contains
mappings for each of the keycodes into a predefined set of codes called keysyms
or keysym/modifier.
The file containing the xmodmap command expressions to be run by the xmodmap
command is in the directory /usr/lpp/X11/defaults/xmodmap/XX_XX, where XX_XX
represents the language/territory designation for the UTF-8 locale. The following
example shows the Euro specific entry for the German UTF-8 locale in
/usr/lpp/X11/defaults/xmodmap/DE_DE/keyboard:
...
! Row 2 Base Shift Alt-Gr (Mod2)
! ----- ---- ----- -------------
!
!keycode 24 = Tab NoSymbol NoSymbol
keycode 25 = q Q at
keycode 26 = w W NoSymbol
keycode 27 = e E EuroSign
keycode 28 = r R NoSymbol
...
If you press the AltGr+e key combination on a German keyboard, the first step of
the input processing is completed when the keycode to keysym/modifier
conversion is done. In this specific case, the modifier is masked. For example,
the AltGr modifier and the character "e" are combined to map to the EuroSign key
symbol. But the keysym still has to be mapped to the related character string in
the code set specified by your locale before an application can process the input.
This conversion is governed by the input method.
National Language Support 261