Re: Menu-bar flickering on Win10

[Po Lu]

Arash Esbati <arash@gnu.org> writes:

> Hi all,
>
> I had a minute and gave Eglot for a LaTeX file a roll.  Digestif as
> server doesn't work on Win10, so I installed texlab which works.  For
> the good news, I added one entry to `eglot-server-programs' and 'M-x
> eglot RET' just worked.
>
> For the bad news, I observed a random flickering in the menu-bar when
> completion happens which looks like this:
>
>  
>
>
> This is with 'emacs -Q' and 'Corfu' providing the pop-ups.  Is this a
> known issue with child frames?  I'm asking if it's worth filing a bug
> report.
>
> Best, Arash

I think menu bar updates are not double buffered on MS Windows, and as a
consequence flickers as Emacs removes the items to update them.