Re: How to get the new frame?

[Eli Zaretskii]

> From: "B. T. Raven" <btraven@nihilo.net>
> Date: Fri, 24 Jul 2015 07:51:11 -0500
> 
> Thanks, Eli. For a number of years I have thought that changing the font 
> applied to all buffers. Was this ever true since ver. 20 or 21?

Yes, buffer-face-mode was introduced in Emacs 23.1.

> I think the problem with mm height and width is due to Emacs assuming 72 
> ppi (display-pixels-per-inch) rather than the true value of 120 ppi. 

Possibly.  It's what Windows reports to us.

> (x-)display-pixel-height and -width return the correct values of 900 and 
> 1440 respectively.

Then use those, instead of the mm dimensions.

> Btw, are there other buffers besides calendar that need monospace to 
> display correctly? I use proportional font even in .emacs merely for 
> aesthetic reasons.

Any major mode for some programming language will look weird with
variable-pitch fonts, IMO.