Hello, I am Navid , and I am an Independent Advisor. I will do my best to help you.
It's a very interesting question for me also. Thank you to ask it. Fortunately, there is an official API from Microsoft that you could find it here:
https://docs.microsoft.com/en-us/uwp/api/Window...
I think and I hope that these two methods are what you are looking for:
StartTetheringAsync()
StopTatheringAsync()
And maybe this property gives you Cherry on the cake:
ClientCount
But I am not sure. Because honestly I did never use it. (I hope that it's not just count, but count and list.)
Best,
Navid Dariya