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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: kbd vs read-key-sequence
Date: Mon, 02 Apr 2007 14:58:40 +0300
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Reply-To: Eli Zaretskii <eliz@gnu.org>
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Cc: emacs-devel@gnu.org, monnier@iro.umontreal.ca, rms@gnu.org, jasonr@gnu.org
To: Kenichi Handa <handa@m17n.org>
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In-reply-to: <E1HYCGj-0001Dn-AH@etlken.m17n.org> (message from Kenichi Handa
	on Mon, 02 Apr 2007 11:27:41 +0900)
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> From: Kenichi Handa <handa@m17n.org>
> CC: monnier@iro.umontreal.ca, rms@gnu.org, eliz@gnu.org, emacs-devel@gnu.org
> Date: Mon, 02 Apr 2007 11:27:41 +0900
> 
> Windows code is already using MultiByteToWideChar() which
> seems to convert codepage codes to Unicode character, right?

Not to Unicode, to UTF-16.

> Then, can't we use it to get a Unicode character code from
> keyevent(s) and do something like this?
> 
>         MultiByteToWideChar (codepage, 0, inbuf, inlen, outbuf, outlen)
> 	lisp_char = call2 (intern ("decode-char"), intern ("ucs"),
> 			    make_number (outbuf[0]));

I don't think this is the right way of getting Unicode codepoints for
keyboard input on Windows; see

     http://msdn2.microsoft.com/en-us/library/ms646267.aspx

(under "Nonsystem Character Messages"), and

     http://msdn2.microsoft.com/en-us/library/ms633586.aspx

for the gory details.

But surely, such a drastic change in the w32 keyboard input processing
is not something to consider before the release!  Especially when the
problems we are trying to fix are so minor, almost invisible.