Function RegOpenKeyTransactedW 

pub unsafe extern "stdcall" fn RegOpenKeyTransactedW(
    hKey: HKEY,
    lpSubKey: LPCWSTR,
    ulOptions: DWORD,
    samDesired: REGSAM,
    phkResult: PHKEY,
    hTransaction: HANDLE,
    pExtendedParemeter: PVOID,
) -> LSTATUS