X11 extension `resize and rotate'

[Kai Großjohann]

When on the road, I use a certain font on my laptop.  When in the
office, using the external display, I use a different font.

Now there the resize and rotate X11 extension with XFree86 that
allows me to change resolutions on the fly.

Wouldn't it be cool if Emacs would invoke a hook when this happened
so that I could change the Emacs font?

I gather that resize and rotate forwards the event somehow to the
applications, though I don't know how.
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