Is there a way to create a process group without using setpgid, getpgid, setpgrp, getpgrp?

Question

C++ / C#

The whole day I puzzled over whether there is an alternative, but I did not find it.
Does anyone have any ideas, maybe using ioctl ?

Answer 1

The whole day I puzzled over whether there is an alternative, but I did not find it.

What for? What's wrong with the standard interface?

Answer 2

This one says https://www.systutorials.com/docs/linux/man/3-tcge... that

These functions are implemented via the TIOCGPGRP and TIOCSPGRP ioctls.