HHCTRL.OCX: fix W to A call

[Felix Nawothnig]

Dimi Paun wrote:
> I think it would be better to always use the W APIs. This way we can
> have tools to warn if we have W->A transitions. We lose a little in
> readability (a special grep tool anyone?), but we gain a simple rule
> to follow and enforce, which could be used by various tools, like
> winapi_check.

I'm sure this has already been proposed (and rejected :) but I'll ask 
nevertheless: Why not use L"" everywhere and add a small 
perl/awk/whatever preprocessor which translates into C89 for compilers 
which don't support wide string literals?

Felix