Re: Redisplay resets vscroll when window start changes

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: emacs-devel@gnu.org
> Date: Tue, 16 Nov 2021 08:02:18 +0800
> 
> > Are you using scroll commands to implement this?  If so, don't: they
> > are not the right way of having pixel-wise scrolling in Emacs.
> 
> Uh, no, but I would like to preserve the vscroll across scrolling
> commands, as that's how pixel-wise scrolling works in other editors.

I don't think I understand.  Can you tell more, and perhaps give an
example?  Why would we want to preserve the vscroll after a real
scroll, when scrolling means you see some completely different text?