Function WideCharToMultiByte

pub unsafe fn WideCharToMultiByte<P6>(
    codepage: u32,
    dwflags: u32,
    lpwidecharstr: &[u16],
    lpmultibytestr: Option<&mut [u8]>,
    lpdefaultchar: P6,
    lpuseddefaultchar: Option<*mut BOOL>,
) -> i32
where
    P6: Param<PCSTR>,