Mattias Waldau wrote:
> I have a filename as an UTF-8 encoded string. I need to be able to 
> handle strange chars like accents, Asian chars etc.
> 
> Is there any way to create a file with that name? I only need it on Win32.

Windows uses UTF-16 for filenames, but provides a non-Unicode interface 
for legacy applications; the standard open() function that OCaml's 
open_out wraps appears to use the legacy interface.  The precise 
codepage this uses is system-dependent, and AFAIK there's no way for a 
program to determine what it is without calling out to the Win32 API, 
but you can be pretty sure it won't be UTF-8.

In other words, there is no reliable way to use a filename containing 
non-ASCII characters with OCaml's standard library.

> Or should I solve this problem by talking directly to the Win32-api?

This is probably the best solution.  A combination of CreateFileW() and 
MultiByteToWideChar() should do what you want.

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