I’m using a Tobii 4C eye tracker with the Tobii Pro SDK .NET (C#) bindings. I’ve received a license key that enables the use of the professional sdk. I connect to the eye tracker, apply the license key, and then set 2 events: GazeDataReceived and EyeImageReceived. The GazeDataReceived event works correctly, however, the EyeImageReceived event is never invoked.
Here’s part of the license key that shows the professional sdk support: