On Mon, 8 Jan 2024 22:45:54 -0500
Bill Ricker <bill.n1...@gmail.com> wrote:

> This depends upon what Window Manager and perhaps Desktop Manager
> you're running ?

This, and as noted the X11 vs. Wayland consideration. And the fact that
this all assumes the pty is associated with an xterm (or whatever) and
not something else like a console or SSH session.

Also, it wouldn't be the PID of the vi process. It needs to trace up
the chain of parent PIDs to get to the xterm.

-- 
\m/ (--) \m/
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