Re: Flicker on MS Windows

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: emacs-devel@gnu.org
> Date: Sun, 06 Mar 2022 19:27:32 +0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> From: Po Lu <luangruo@yahoo.com>
> >> Date: Sun, 06 Mar 2022 18:24:25 +0800
> >> 
> >> Has anyone noticed that Emacs seems to flicker a lot on newer versions
> >> of MS-Windows, such as Windows Vista and Windows 10?  I never used Emacs
> >> much on Windows, but the flicker isn't noticable on Windows XP and 9X,
> >> while scrolling from the top to the bottom of w32term.c in those newer
> >> versions leaves chunks of text noticably missing, presumably between
> >> w32_scroll_run and the rest of the window being displayed.  The menu bar
> >> also constantly flickers, but I see that on Windows XP as well.
> 
> > With which version(s) of Emacs do you see this?
> 
> 27.2, and also 28.0.91.

Also, how did "scroll from top to bottom" -- with what command(s)?
And how did you determine that this is related to w32_scroll_run, or
even that w32_scroll_run was called while you scrolled in this case?