Assistance for complex modifier: assign Underscore ("_") character to F16 (USA layout)

[Ryan Noyes]

Hello all,

Mr. Fumihiko, I can't thank you enough for developing this tool!  I am interested in building a complex modifier to trigger the Underscore via F16.  EventViewer says F16 is 107.  However, I am not sure how to get a code for the "_" character,  which is only accessed on a US keyboard layout by pressing Shift + "-" ("-" is the hyphen key).  EventViewer says Shift is 229 and hyphen ("-") is 45.  I basically need the character that the hyphen key generates while shift is held down.  I am very sorry that I do not know code!

Any guidance would be most greatly appreciated.  Thank you so much in advance!

My best,

Ryan

[raf]

Hi,

You can refer to keys by name. I think you want something like this:

{
"manipulators": [
{
"description": "Change F16 to underscore.",
"from": {
"key_code": "f16",
"modifiers": { "optional": [ "any" ] }
},
"to": [
{
"key_code": "hyphen",
"modifiers": [ "left_shift" ]
}
],
"type": "basic"
}
]
}

That's what I use (but to map capslock to underscore).
I have it in my ~/.config/karabiner/karabiner.json file
(in profiles[0]->complex_modifications->rules) but it's
probably better to put it in its own file inside
~/.config/karabiner/assets/complex_modifications but
I haven't tried that yet. If you want to put it there,
I'd suggest downloading a complex modification from
the internet just to see what its entire JSON structure
looks like, and matching it when creating your own rule.

cheers,
raf

[raf]

Hi again,

I've just migrated my complex modifications out of the
main ~/.config/karabiner/karabiner.json file into separate
files in the ~/.config/karabiner/assets/complex_modifications
directory.

Here's a version of the above that can be put into a file in
that directory
(e.g ~/.config/karabiner/assets/complex_modifications/change-f16-to-underscore.json).

{
"title": "Change F16 to underscore",
"rules":
[
{
"manipulators":
[
{
"description": "Change F16 to underscore",

"from": { "key_code": "f16", "modifiers": { "optional": [ "any" ] } },
"to": [ { "key_code": "hyphen", "modifiers": [ "left_shift" ] } ],
"type": "basic"
}
]
}

]
}

You would then need to activate it in Karabiner-Elements ->
Preferences -> Complex modifications -> Add rule, then
enable it in the dialog box that appears. Good luck.

cheers,
raf

[Ryan Noyes]

Works like a charm. This is extremely helpful. Thanks so much for walking me through this!

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[raf]

On Sun, Nov 08, 2020 at 11:59:01AM -0500, Ryan Noyes <ryan.w...@gmail.com> wrote:

> On Fri, Nov 6, 2020 at 10:37 PM raf <kara...@raf.org> wrote:
>
> > On Sat, Nov 07, 2020 at 08:54:17AM +1100, raf <kara...@raf.org> wrote:
> >
> > > On Thu, Nov 05, 2020 at 05:37:18PM -0800, Ryan Noyes < ryan.w...@gmail.com> wrote:
> > >
> > > > Hello all,
> > > > Mr. Fumihiko, I can't thank you enough for developing this tool! I am
> > > > interested in building a complex modifier to trigger the Underscore via
> > > > F16. EventViewer says F16 is 107. However, I am not sure how to get a
> > > > code for the "_" character, which is only accessed on a US keyboard layout
> > > > by pressing Shift + "-" ("-" is the hyphen key). EventViewer says Shift is
> > > > 229 and hyphen ("-") is 45. I basically need the character that the hyphen
> > > > key generates while shift is held down. I am very sorry that I do not know
> > > > code!
> > > >
> > > > Any guidance would be most greatly appreciated. Thank you so much in
> > > > advance!
> > > >
> > > > My best,
> > > > Ryan
> > >

> > > [...]

> > >
> > Here's a version of the above that can be put into a file in
> > that directory
> > (e.g
> > ~/.config/karabiner/assets/complex_modifications/change-f16-to-underscore.json).
> >
> > {
> > "title": "Change F16 to underscore",
> > "rules":
> > [
> > {
> > "manipulators":
> > [
> > {
> > "description": "Change F16 to underscore",
> > "from": { "key_code": "f16", "modifiers": {
> > "optional": [ "any" ] } },
> > "to": [ { "key_code": "hyphen", "modifiers": [
> > "left_shift" ] } ],
> > "type": "basic"
> > }
> > ]
> > }
> > ]
> > }
> >
> > You would then need to activate it in Karabiner-Elements ->
> > Preferences -> Complex modifications -> Add rule, then
> > enable it in the dialog box that appears. Good luck.
>

> Works like a charm. This is extremely helpful. Thanks so much for walking
> me through this!

No worries. Glad to hear it's working.

cheers,
raf