Re: dpyinfo

[Eli Zaretskii]

> Date: Wed, 9 Dec 2020 21:55:56 +0000
> From: Alan Third <alan@idiocy.org>
> 
> I've been looking at using the screen's actual DPI setting when
> generating SVG files for bug 45124 and I was wondering if the dpyinfo
> struct is updated as the frame moves from screen to screen? My guess
> is that it's not, and it's only set when the frame is created?

The resolution is set in init_xterm, so I'd expect it to be run
whenever a new display is open, not when a frame is created.  What
happens when one moves from one screen to another, I don't know, but
if they are on the same X display, the resolution indeed doesn't
change, AFAICT.