Hi @daveh, I am sorry but this forum is intended for support with the Tobii Tech range of eye trackers for gaming and interactive applications. Tobii Pro Glasses belongs to the Tobii Pro business department so please kindly get in touch with their support team @ https://www.tobiipro.com/contact/contact-support/
That being said, I am sure there is indeed an SDK available for Tobii Glasses, so hopefully they should be able to help you out.