Re: master e37eb7f: Add support for pixel wheel deltas on NS

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: rpluim@gmail.com,  emacs-devel@gnu.org
> Date: Fri, 26 Nov 2021 08:39:21 +0800
> 
> > (And I really don't see what needs to be done on Windows, since it
> > seems already to report each wheel turn.  Perhaps I'm missing
> > something, in which case a test case to work with would be
> > appreciated.)
> 
> Someone needs to make it report the precision scroll information, and
> optionally coalesce scroll events until at least a screen line has been
> scrolled.

What is "precision scroll information", and how does it differ from
the information we receive from the mouse wheel on MS-Windows today?
AFAICT, we already get a window-system message for every movement of
the mouse wheel, so what else is needed?