Thank you for your help. I want to say that at the moment we have a big problem with xtrap, because the developers have added my program to the black list. Of course, I'll fix it the other day, but they can do this every week and it would be quite difficult to change the interface on a weekly basis. So I was going to write a driver. Driver programming and debugging takes time, then I need to sign my driver, so it's about $ 250 (and I'll be obligated to establish a legal organization for this). In general, this is a great difficulty, but at the moment I wish to do so. Of course, I will make the tutor video as soon as I can, but not earlier than my program starts working again as before. I'm sure this forum is being viewed by xtrap developers, by the by.