travis
(Travis Northcutt)
#1
I want to program a key to send the same keycode that my Macbook Air’s built in keyboard sends when I press the fn
key on the built in keyboard.
I’ve looked through what appear to be the available keycodes here and I don’t see any that would make sense.
The screenshot below is what Karabiner EventViewer reports when I press this key.

merlin
(Michael Richters)
#2
You can’t, unfortunately. It’s not a USB HID key code of any sort, so external keyboards are not capable of sending it.
travis
(Travis Northcutt)
#3
Oh wow, interesting!
Out of curiosity, do you know how Apple’s own external keyboards send it? Some proprietary magic?