Hi @matteodima, thanks for getting in touch. Whilst your specific scenario is very novel, it may be of interest to you to check out the Tobii Interaction Library API which comes with WPF support and indeed we provide a WPF walkthrough and sample code on our landing page @
https://developer.tobii.com/consumer-eye-trackers-interaction-library-getting-started/
This might be a good place for you to get started with the coding side of the project.. check it out and let us know how you get on. Best Wishes.