Windows: utf-8 encode file paths

[stefandrissen]

While adding blackborder to simcoupe.cfg I ran into another issue, the encoding of simcoupe.cfg is Ansi which vscode immediately choked on, assuming utf-8.

This is only an annoyance when the character also has an Ansi representation, but when the folder contains a utf-8 character, the dsk cannot be opened.

1. create a folder named 💩
2. put a dsk file in it
3. double click on the dsk file

---------------------------
SimCoupe
---------------------------
Failed to insert disk 1:

C:\retro\??\Arkanoid_ Revenge of DOH.dsk
---------------------------
OK   
---------------------------

[simonowen]

Unfortunately, this is never going to be fixed for the current version. Windows handles extended characters fine with Unicode, but UTF-8 support only really works well in later Windows 10 builds. More general support requires converting strings back and forth at every API boundary, and that's very messy for the existing codebase.

This is already fixed in my development build, which uses UTF-8 paths throughout. It might have some limitations on displaying them in some situations, due to the font glyphs I pull in, but it should handle them correctly everywhere.

I can leave this open as a reminder until support is available.