Terry J. Reedy added the comment:
The term 'dead key' is new to me. I found this:
https://en.wikipedia.org/wiki/Dead_key . 'AltGr' is also new:
https://en.wikipedia.org/wiki/AltGr_key . It apparently is a 'modifier' key,
not a 'dead key'. Standard non-Mac US keyboards apparently have
Ned Deily added the comment:
Just to avoid any confusion, Apple-supplied Mac keyboards don't have an AltGr
key. It is found on certain PC keyboard layouts and, as such, could be used on
any platform (Windows, OS X, or other Unix).
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Python
Drekin added the comment:
It seems that it's a problem of dead key combinations rather than modifiers.
Unicode characters produced directly (with or without modifiers) work correctly.
Only one deadkey on my keyboard doesn't work at all. AltGr + M is a deadkey,
but any following key is
New submission from Drekin:
Key events produced on Windows handles Unicode incorrectly when Unicode
character is produced by dead-key combination.
On my keyboard, (AltGr + M, a) produces several key events, last of which
contains char==a, however, it should contain ∀. Also dead-key sequence
Ned Deily added the comment:
I don't have a real Windows setup to test but I would guess this may be Tk
behavior. Perhaps the Tk wiki page on platform-specific keyboard modifier
behaviors will help:
http://wiki.tcl.tk/28331
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nosy: +ned.deily