> On 2025-02-12 Martin Storsjö wrote:
> > I remember there was a discussion earlier about e.g. the use of
> > WC_NO_BEST_FIT_CHARS to WideCharToMultiByte wrt support for older
> > versions of Windows - is this fine for us to use, or do we need to
> > try to only use it when supported?
At least there's no problem on WinXP and later.
WideCharToMultiByte:
- CP_ACP and CP_OEMCP with WC_NO_BEST_FIT_CHARS work on Win98SE and
WinXP. Since Win98SE is a few months older than W2k, I guess that
this should work on W2k as well.
- CP_UTF8 works on Win98SE and WinXP but only without flags.
WC_ERR_INVALID_CHARS is documented to be for Vista and later, so
this isn't a surprise.
- WC_NO_BEST_FIT_CHARS doesn't work on Win95 (4.00.950). Had it
worked, it would have felt OK to guess that it works on NT4 too.
- CP_UTF8 doesn't work on Win95.
MultiByteToWideChar:
- CP_ACP and CP_OEMCP with MB_ERR_INVALID_CHARS work even on Win95.
- CP_UTF8 with MB_ERR_INVALID_CHARS works on WinXP. It doesn't work
on Win95 or Win98SE.
Support for CP_UTF8 should only matter with UCRT when using UTF-8
locale. Thus the limitations with CP_UTF8 shouldn't be an issue.
The new dirent code doesn't work on Win9x, but it was quick to test on
those anyway.
--
Lasse Collin
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