Mac Fn key

[mondalaci]

We should try to emulate the Fn key of Mac keyboards.

https://apple.stackexchange.com/questions/340607/what-is-the-hex-id-for-fn-key might help.

[simisoft-exo]

Does this mean that Mac users would get the Mac Fn key together with the UHK Fn layer?

[mondalaci]

The two keys will be separately assignable if we figure this out.

[yyolk]

This is also shared with the "Globe" key 🌐, which AFAICT started showing up on the Magic Keyboard. Looks like starting in macOS Sonoma is referred to as the "Globe" key and is configurable to pop up the emoji picker¹, and some other options with a single keypress, when not used as a modifier for other keys.

This article talks about some of the options it's configurable for beyond a single keypress by itself, not as a modifier

https://tidbits.com/2023/11/16/the-hidden-secrets-of-the-fn-key/

Footnotes

1. ⌘ + ⌃ + ␣ will still open it as well ↩

[geggo98]

I think the Apple "globe button" is just "AC Next Keyboard
Layout Select" (0x029D) from the "Generic GUI Application Controls". But I don't know if that also covers the "fn" function of that button or if it is reported differently.

See also the official Apple documentation.