EyeTracker SDK's - OtagoPolytechnic/OpenSourceWindowsGazeControl GitHub Wiki
Tobii EyeX
The C# SDK for the EyeX is avaliable here: http://developer.tobii.com/ , To download it you will need to make a account in the Tobii Developer zone, this also gives you access to the Tobii Forums which are useful for EyeX specific Development questions. Tobi EyeX Developer Guide.
Project requirments
To use this project with the Tobii EyeX you need to reference the following 64bit dll files.
"OpenSourceWindowsGazeControl\lib\x64\EyeXFramework.dll"
"OpenSourceWindowsGazeControl\lib\x64\Tobii.EyeX.Client.Net20.dll"