Hi @leengu, sorry but the C++ variant of the Interaction API is not yet available for public use. However, we do include a number of stream samples @ https://github.com/Tobii/stream_engine and a brief
getting started guide @ https://tobii.github.io/stream_engine/
However, if you are intending on using WPF, etc then the transition may indeed be quite tricky.
If you could kindly expand on what you are trying to achieve, we may be able to figure out a workaround based on your needs. Many thanks.