Re: Emacs's set-frame-size can not work well with gnome-shell?

[Dmitry Gutov]

Hi Martin,

On 12.03.2020 10:23, martin rudalics wrote:
>  >> It also freezes Emacs on
>  >> desktops like kwin and xfwm and therefore must be made optional anyway.
>  >
>  > That's unfortunate. If there was a way to detect Mutter 
> programmatically, maybe we should use that. Even if just to set the 
> default value of the new variable you've described below.
>
> I've been trying to do that but it's unreliable (BTW mutter here
> identifies itself as GNOME shell): We would have to test such an
> automatism on all possible desktops people use.  So better leave that to
> Emacs 28.

By the way, any chance we can have a variable or an accessor function 
that would return what the current WM identifies as?

Emacs might not want to alter its behavior based on that for now, but 
third-party packages (such as posframe) can experiment with that in the 
meantime.

And also, what's the best way to detect which toolkit was Emacs compiled 
with? Only look for 'gtk3' substring in system-configuration-options?