BrightSign is a different division of Roku, this is the forum for the Roku video player. That being said, there are some examples in the 3.0 SDK on UDP communications for the Roku video player.
To find your ip, use the roDeviceInfo component. There is a thread from a few weeks ago on this subject.
- Joel
Screenshades: The first Screensaver for Roku2!
Musiclouds: The best free internet music, on your Roku!
Ouroborialis: Psychedelic Screensaver for Roku!