Does the detach thread get disconnected when the application closes?

Question

C++ / C#

If a parallel thread was detached in main, and, subsequently, there was no manual disconnection of it, will the "detached" thread be disconnected if the application terminates? Can it be that after closing the detach application, the thread will continue to work?

Answer 1

Can it be that after closing the detach application, the thread will continue to work?

After the application ends, no.
"Closing" is something from the world of windows, closing a window doesn't mean anything.