pub unsafe fn CredPackAuthenticationBufferA<P0, P1>(
    dwflags: CRED_PACK_FLAGS,
    pszusername: P0,
    pszpassword: P1,
    ppackedcredentials: Option<*mut u8>,
    pcbpackedcredentials: *mut u32
) -> Result<()>
where P0: IntoParam<PCSTR>, P1: IntoParam<PCSTR>,