Function winsafe::WideCharToMultiByte

pub fn WideCharToMultiByte(
    code_page: CP, 
    flags: WC, 
    wide_char_str: &[u16], 
    default_char: Option<u8>, 
    used_default_char: Option<&mut bool>
) -> WinResult<Vec<u8>>

WideCharToMultiByte function.

The resulting Vec<u16> includes a terminating null.