GLibWIN32_HAVE_WIDECHAR_API

On Windows, this macro defines an expression which evaluates to TRUE if the code is running on a version of Windows where the wide character versions of the Win32 API functions, and the wide character versions of the C library functions work. (They are always present in the DLLs, but don’t work on Windows 9x and Me.)

On non-Windows platforms, it is not defined.