Re: [PATCH] Fix placement of toggle and radio button in Lucid menu.

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: manuel@ledu-giraud.fr,  emacs-devel@gnu.org
> Date: Sat, 26 Feb 2022 15:33:40 +0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Sorry, I don't understand how this is relevant.
> 
> The problem is that the Lucid menu bar widget doesn't find fonts like
> the rest of Emacs does, using the individual font backends.  Instead, it
> relies on various ad hoc methods for font discovery that change
> depending on how it is built.  I didn't look too closely, but font
> metrics are probably calculated differently as well.

That's not the impression I get when I look at the definition of
MENU_FONT_HEIGHT in xlwmenu.c: it does use the font attributes used by
the "usual" font backends, at least in the case of XFT and Cairo.  Am
I missing something?

> > The only difficulty I could see is if somehow it is not easy to know
> > which font is used in the Lucid menus.  Is that the problem?
> 
> That's also a problem, but you can control the font by starting Emacs
> with "-xrm 'Emacs.pane.menubar.font: Courier-12''" or something to that
> effect.

Yes, that's another idea for obtaining this information.