Basically all you need to do is treat it like another IP device and use normal IP communication. Ignore the fact that it's wireless other than for error checking to make sure you got the signal through ... from your codes perspective wired or wireless doesn't matter (unless you're doing low level coding which 90% of the time doesn't make sense to try and do).
There is an article
here on CP that will give you one of the ways you can set up TCP/IP communications using .Net.