Thank you for your answer. So just to be clear; is the use of normalised coordinates (0 to 1 for the active screen, negatives and superior to 1 for the exterior) still possible with the stream engine API, or is there some comparable method?
I would need, at least, to force the Tobii continuing sending its stream of coordinates when I am looking elsewhere than the active screen.
PS: just for information, I am using a Tobii 4C