pub unsafe extern "system" fn NCryptDecrypt(
    hkey: NCRYPT_KEY_HANDLE,
    pbinput: *const u8,
    cbinput: u32,
    ppaddinginfo: *const c_void,
    pboutput: *mut u8,
    cboutput: u32,
    pcbresult: *mut u32,
    dwflags: NCRYPT_FLAGS
) -> HRESULT