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Re: Alt_L and Alt_R are not the same


From: Alex Schroeder
Subject: Re: Alt_L and Alt_R are not the same
Date: Wed, 03 Oct 2001 02:10:16 +0200
User-agent: Gnus/5.090004 (Oort Gnus v0.04) Emacs/20.7

"Ehud Karni" <address@hidden> writes:

> Let me guess that you work with German keyboard where the right-Alt is
> used for composing German characters. I think that Emacs never gets
> the events of pressing/releasing the right-Alt.
>
> Can you check with `xev' what are the events when you press right-Alt
> + q and compare it to pressing left-Alt + q ?

Actually, you are right.  The right Alt ("Alt Gr") is used to compose
the tilde, the pipe, the at sign, the backslash, and super script 2
and 3.  These currently don't work anymore -- and I hadn't noticed for
several days.  I will report back when the rest of the environment
works again and Emacs still doesn't do the right thing.

For the record, though, here something I pasted from the xev output as
I pressed the left and right Alt keys.  Note that the two keys are not
labeled "Alt" and "Alt Gr" (those I mapped to Meta_L and Meta_R).
Keycodes 115 and 116 refer to the Windows keys (on my keyboard they
show a penguin instead).  As I said, I remapped them as follows:

>> I just remapped two of my keys in .Xmodmap as follows:
>> 
>> keycode 115 = Alt_L
>> keycode 116 = Alt_R

And when I press them in xev, this is what happens.  The xev window is
getting the events.

KeyRelease event, serial 27, synthetic NO, window 0x1800001,
    root 0x26, subw 0x0, time 1340261805, (54,-14), root:(799,73),
    state 0x40, keycode 115 (keysym 0xffe9, Alt_L), same_screen YES,
    XLookupString gives 0 characters:  ""

KeyPress event, serial 27, synthetic NO, window 0x1800001,
    root 0x26, subw 0x0, time 1340262492, (54,-14), root:(799,73),
    state 0x0, keycode 116 (keysym 0xffea, Alt_R), same_screen YES,
    XLookupString gives 0 characters:  ""

Alex.
-- 
http://www.geocities.com/kensanata/
Coffee should be black as hell, strong as death and sweet as love.
        -- Turkish proverb



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