Modifying image sent to Dashboard

[flameout]

Where would this documentation be located on a Linux machine? (We picked Java due to a lack of a Windows machine for programming (My personal laptop is our main programming machine)). Otherwise, I'd probably be using C++ (possibly LV, which I used in past years (when a Windows machine was available)).

However, I have not been able to find libraries for many functions. For example, I do not see any way to extract one pixel of information from an image (not necessary at the moment, but possibly useful). Another issue is a lack of file IO (I think... I'm not sure). I have also tried to use Java's TCP and UDP libraries, but to no avail.

Can someone enlighten me as to how to use these (or verify that they're unavailable)?