How to get the "MX record" ?

Hi,
Who can tell me how to get the "MX record" from DNS?
I found some program such as "nslookup" can do this.
Are there any source code in Internet?
Thanks.

Sam

I have the same problem, I try with gethostbyname, WSALookupService... and GetAddressByName but no way.
I post messages in this forum but nothing.

Please if you get the way or a clue for make this send me a email to [email protected]
sorry but my englishhhhhhhh....