Subject: Re: bug#51891: 29.0.50; [PATCH] Pixel delta support for wheel events on X

From: Eli Zaretskii <[email-masked]>
Date: Sat, 20 Nov 2021 09:06:28 +0200

> From: Po Lu <[email-masked]>
> Cc: [email-masked],  [email-masked]
> Date: Sat, 20 Nov 2021 08:30:07 +0800
> 
> Eli Zaretskii <[email-masked]> writes:
> 
> > Some text which makes it clear how these additional POSITION
> > parameters could be used by Lisp programs.
> > I think "pixel-resolution wheel events".
> 
> WDYT about the following passage?
> 
>   @cindex pixel-resolution wheel events
>   You can use @var{x} and @var{y} to determine how much the mouse wheel
>   has actually moved.

Here I would say "... has actually moved at pixel resolution."

>                       Scrolling the screen by these pixel deltas allows
>   to present movement that appears to follow the user's grip on the
>   mouse wheel.

That's just an example of using this feature, so:

  For example, the pixelwise deltas could be used to scroll the
  display at pixel resolution, exactly according to the user's turning
  the mouse wheel.

Thanks.