bug#21260: 23.2; Devanagari windows 10

[Eli Zaretskii]

> Date: Sun, 16 Aug 2015 05:40:59 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: 21260@debbugs.gnu.org
> 
> Does this work better?
> 
>   emacs -Q -xrm Emacs.fontBackend:gdi

Actually, it looks like Emacs already uses the GDI backend, for some
reason.  Could you please verify that?  Go to any character that is
displayed (not as an empty box), and type "C-u C-x =".  If the buffer
that pops up says "gdi:-SOME-FONT-SPECIFICATION", then Emacs is
falling back on the GDI backend, which is incapable of displaying
complex scripts such as Devanagari.

If this is what happens, please see if you have usp10.dll on your
machine somewhere where Emacs can find it.