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how to make the pause key switch keyboard variants?

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  how to make the pause key switch keyboard variants? Salvador Mirzo <smirzo@example.com> - 2025-02-06 21:16 -0300
    Re: how to make the pause key switch keyboard variants? Winston <wbe@UBEBLOCK.psr.com.invalid> - 2025-02-06 23:34 -0500
      Re: how to make the pause key switch keyboard variants? vallor <vallor@cultnix.org> - 2025-02-07 07:20 +0000
        Re: how to make the pause key switch keyboard variants? Winston <wbe@UBEBLOCK.psr.com.invalid> - 2025-02-07 15:28 -0500
          Re: how to make the pause key switch keyboard variants? Salvador Mirzo <smirzo@example.com> - 2025-03-01 22:41 -0300
            Re: how to make the pause key switch keyboard variants? Winston <wbe@UBEBLOCK.psr.com.invalid> - 2025-03-15 09:18 -0400

#579 — how to make the pause key switch keyboard variants?

I wish I could toggle the variant using the pause key and not the menu
key as it is currently set on my OpenBSD system---see below.  I'm
looking through files such as 

  /usr/X11R6/share/X11/xkb/symbols/us

and the others, but I don't immediately see a description of a pause
key.  Is that possible to do?  Can you point me in the right direction?

b$ setxkbmap -query                                                            
rules:      base
model:      pc105
layout:     us,us
variant:    basic,mine
options:    grp:menu_toggle

b$ uname -a
OpenBSD b.local 7.6 GENERIC.MP#338 amd64

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#580

Salvador Mirzo <smirzo@example.com> writes:
> I wish I could toggle the variant using the pause key and not the menu
> key as it is currently set on my OpenBSD system---see below.

I'm not sure, but this sounds more like something xmodmap(1) would do.
man xmodmap.

However, since I usually see "Pause" as "Break"+Shift on keyboards, you
may need to look at references to Break's keycode as well as Pause.
 -WBE

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#581

On Thu, 06 Feb 2025 23:34:49 -0500, Winston <wbe@UBEBLOCK.psr.com.invalid>
wrote in <yd5xlmgyom.fsf@UBEblock.psr.com>:

> Salvador Mirzo <smirzo@example.com> writes:
>> I wish I could toggle the variant using the pause key and not the menu
>> key as it is currently set on my OpenBSD system---see below.
> 
> I'm not sure, but this sounds more like something xmodmap(1) would do.
> man xmodmap.
> 
> However, since I usually see "Pause" as "Break"+Shift on keyboards, you
> may need to look at references to Break's keycode as well as Pause.
>  -WBE

xev(1) shows the keycode on my Linux system:

KeyPress event, serial 34, synthetic NO, window 0xd800001,
    root 0x1ee, subw 0xd800002, time 152673378, (38,41), root:(1869,1073),
    state 0x10, keycode 127 (keysym 0xff13, Pause), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 37, synthetic NO, window 0xd800001,
    root 0x1ee, subw 0xd800002, time 152673450, (38,41), root:(1869,1073),
    state 0x10, keycode 127 (keysym 0xff13, Pause), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

Don't know if it would be different in BSD, but worth a try with xev(1).

-- 
-v

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#582

Salvador Mirzo <smirzo@example.com> posted:
>>> I wish I could toggle the variant using the pause key and not the menu
>>> key as it is currently set on my OpenBSD system---see below.

to which I replied:
>> I'm not sure, but this sounds more like something xmodmap(1) would do.
>> man xmodmap.

>> However, since I usually see "Pause" as "Break"+Shift on keyboards, you
>> may need to look at references to Break's keycode as well as Pause.

vallor <vallor@cultnix.org> then replied:
> xev(1) shows the keycode on my Linux system:
>
> KeyPress event,
> [...]  state 0x10, keycode 127 (keysym 0xff13, Pause), same_screen YES,

I see the same keycode and keysym for Pause, but on "PC" type keyboards,
I see "Pause" printed above "Break" on the key label, and one has to
hold down a Shift key when pressing that key to get Pause.

Either way, I was just a bit surprised when it sounded like Salvador
seemed to be saying he has a keyboard where Pause doesn't require Shift.
 -WBE

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#583

Winston <wbe@UBEBLOCK.psr.com.invalid> writes:

> Salvador Mirzo <smirzo@example.com> posted:
>>>> I wish I could toggle the variant using the pause key and not the menu
>>>> key as it is currently set on my OpenBSD system---see below.
>
> to which I replied:
>>> I'm not sure, but this sounds more like something xmodmap(1) would do.
>>> man xmodmap.
>
>>> However, since I usually see "Pause" as "Break"+Shift on keyboards, you
>>> may need to look at references to Break's keycode as well as Pause.

Thanks.  I was able to get it to work.  I used xev to figure out what
was the keycode of pause and the menu key.  I discovered that the pause
key issues the keycode 135 when pressed, and menu key, keycode 117.  So
the following commands disable the menu key and makes the pause key
behave like the menu key:

xmodmap -e 'keycode 135 = ISO_Next_Group'
xmodmap -e 'keycode 117 = VoidSymbol'

Now, what I'm puzzled about is that I add these commands to .xsession,
which I'm positive that xenodm runs when I log in, but it takes no
effect.

Another puzzling thing that's going on here, which might be totally
unrelated, is that my Firefox stopped translating 'c into ç.  The toggle
to make this translation happen is the environment variable

  GTK_IM_MODULE=cedilla

which is sourced in my .xsession.  So much so that when I run uxterm and
then run firefox from it, I get ç when I press 'c.  And I don't know how
this started to happen because I had Firefox behaving as expected for
quite a while here and I can't identify what it is that I changed to get
me to this situation.

This may possibly due to xenodm.  I was running startx for some time and
I eventually switched to running xenodm.  

> vallor <vallor@cultnix.org> then replied:
>> xev(1) shows the keycode on my Linux system:
>>
>> KeyPress event,
>> [...]  state 0x10, keycode 127 (keysym 0xff13, Pause), same_screen YES,
>
> I see the same keycode and keysym for Pause, but on "PC" type keyboards,
> I see "Pause" printed above "Break" on the key label, and one has to
> hold down a Shift key when pressing that key to get Pause.
>
> Either way, I was just a bit surprised when it sounded like Salvador
> seemed to be saying he has a keyboard where Pause doesn't require Shift.

That's right.  No shift required for pause.  I have a DURGOD Taurus K310
with a numeric keypad.  Here's what xev reports when I press pause.
(That's before I run the xmodmap commands I mentioned above.)

KeyPress event, serial 33, synthetic NO, window 0x1e00001,
    root 0x607, subw 0x0, time 904643, (89,89), root:(824,435),
    state 0x10, keycode 135 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes: 
    XmbLookupString gives 0 bytes: 
    XFilterEvent returns: False

KeyRelease event, serial 33, synthetic NO, window 0x1e00001,
    root 0x607, subw 0x0, time 904693, (89,89), root:(824,435),
    state 0x10, keycode 135 (keysym 0x0, NoSymbol), same_screen YES,
    XLookupString gives 0 bytes: 
    XFilterEvent returns: False

Thanks!

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#584

From: Winston <wbe@UBEBLOCK.psr.com.invalid>
Newsgroups: comp.windows.x
Subject: Re: how to make the pause key switch keyboard variants?
References: <871pwa7gnc.fsf@example.com> <yd5xlmgyom.fsf@UBEblock.psr.com>
	<vo4c89$314vf$2@dont-email.me> <ydv7tlfqir.fsf@UBEblock.psr.com>
	<87v7ssmcnx.fsf@example.com>
X-Draft-From: ("comp.windows.x" 760)
Mail-Copies-To: never
Date: Sat, 15 Mar 2025 08:41:39 -0400
Message-ID: <ydmsdmea9o.fsf@UBEblock.psr.com>
User-Agent: Gnus/5.13 (Gnus v5.13)
--text follows this line--
Salvador Mirzo <smirzo@example.com> posted:
>>>>> I wish I could toggle the variant using the pause key and not the
>>>>> menu key as it is currently set on my OpenBSD system---see below.

to which I replied:
>>>> I'm not sure, but this sounds more like something xmodmap(1) would
>>>> do.  man xmodmap.

Later, Salvador Mirzo <smirzo@example.com> replied:
> Thanks.  I was able to get it to work.  I used xev to figure out what
> was the keycode of pause and the menu key.  I discovered that the pause
> key issues the keycode 135 when pressed, and menu key, keycode 117.  So
> the following commands disable the menu key and makes the pause key
> behave like the menu key:
>
> xmodmap -e 'keycode 135 = ISO_Next_Group'
> xmodmap -e 'keycode 117 = VoidSymbol'
>
> Now, what I'm puzzled about is that I add these commands to .xsession,
> which I'm positive that xenodm runs when I log in, but it takes no
> effect.

Try this and see if it helps...

1) Create a file (e.g., .xmodmaprc, but there's nothing special about
   the name) with the relevant remove/keysym/keycode/add commands.
   This is for step 2.

2) Once X and some xterm is running, run xmodmap .xmodmaprc again,
   maybe even twice.

ISTM there's some sort of bug with xmodmap, and either I've always done
something wrong or the bug's been there for years.  Even though I run
xmodmap during startup, half the changes don't happen (and half do).
I have to run xmodmap twice after startup to get things right.

> Another puzzling thing that's going on here, which might be totally
> unrelated, is that my Firefox stopped translating 'c into ç.  The
> toggle to make this translation happen is the environment variable
>
>   GTK_IM_MODULE=cedilla

Sorry, not something I know about.  Maybe someone else can help with
that.
 -WBE

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