If both programs do support unicode, they should just work. This entire post exists because legacy programs do not. And you are using Win32 because of those legacy programs.
That is also why Win32 seems to be the most stable API for userland programs, while constant recompiles of the entire userland are very much the norm and required so your desktop and apps can keep working on other *NIX.
That is also why Win32 seems to be the most stable API for userland programs, while constant recompiles of the entire userland are very much the norm and required so your desktop and apps can keep working on other *NIX.