Re: confusion with defining keys

[kastian]

Hello

On Wed, Jun 11, 2014 at 07:05:07AM +0200, lee wrote:
> Hi,
> how come that sometimes keys cannot be defined (for X11 frames)?  I'm
> trying to define something for 'undo, like:
> (global-set-key "\C-ä" 'undo)
> This doesn't define the key binding.  Same goes for C-#.  Using 'kbd
> doesn't work, either.
> What might be the problem with this, and how can I define such keys?

I've similar problem with russian letters, but

(global-set-key [?\M-й] 'function) 

works well.