Function MultiByteToWideChar 

pub unsafe extern "stdcall" fn MultiByteToWideChar(
    CodePage: UINT,
    dwFlags: DWORD,
    lpMultiByteStr: LPCCH,
    cbMultiByte: c_int,
    lpWideCharStr: LPWSTR,
    cchWideChar: c_int,
) -> c_int