guid to cout

gistfile1.cpp

std::ostream& operator<<(std::ostream& os, REFGUID guid)
{
    char buffer[37];
    snprintf(buffer, sizeof(buffer),
        "%08lX-%04hX-%04hX-%02hhX%02hhX-%02hhX%02hhX%02hhX%02hhX%02hhX%02hhX",
        guid.Data1, guid.Data2, guid.Data3,
        guid.Data4[0], guid.Data4[1], guid.Data4[2], guid.Data4[3],
        guid.Data4[4], guid.Data4[5], guid.Data4[6], guid.Data4[7]);

    return os << buffer;
}