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Asked: 2026-05-31T05:37:13+00:00

I have a requirement to use hardcoded key combos like ctrl-shift-[, ctrl-shift], etc to

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I have a requirement to use hardcoded key combos like ctrl-shift-[, ctrl-shift], etc to globally trigger MENU, HOME, and BACK key functionality from a usb attached keyboard.

I’ve been directed to do this using key character maps. In .kcm files, you can use MENU, HOME and BACK as keywords, but only in a “fallback” clause. Otherwise, you seem to be stuck with using ascii or hex Unicode characters.

I’ve searched dozens of places including http://www.unicode.org/charts/ but frankly, the number of Unicode characters is huge and I’m afraid I’ve missed them.

Is anyone aware of the magic numbers?

Also, is there a better way to do this?

Thanks,

cben

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1 Answer

  1. Editorial Team

    Turns out that using fallback is sufficient. This avoids the need for using Unicode and lets you use the keywords MENU, HOME, and BACK as noted above. I think the real issue may have been an error in the .kcm file when I was testing that was preventing fallback from working.

    Bottom line: use validatekeymaps tool manually. Your compile may not be calling it.

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