Re: Scrolling commands and skipping redisplay, was: Re: emacs rendering comparisson between emacs23 and emacs26.3

[Eli Zaretskii]

> From: Stefan Monnier <address@hidden>
> Cc: address@hidden,  address@hidden,  address@hidden,
>   address@hidden,  address@hidden,  address@hidden
> Date: Mon, 20 Apr 2020 17:50:20 -0400
> 
> What I meant is that if the setting is 1 and the line height is, say, 13
> pixels, we could consider any displacement of strictly less than 26
> pixels to be "within the limits".

That would mean the last line we scroll into the window will be only
partially visible, and that is a no-no in scrolling.