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Subject: Re: How to persist registers across sessions?
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In-Reply-To: <YsCT0+Eme8xA5Ox+@protected.localdomain> (message from Jean Louis
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> Date: Sat, 2 Jul 2022 21:52:03 +0300
> From: Jean Louis <bugs@gnu.support>
> Cc: help-gnu-emacs@gnu.org
> 
> > > (frameset-restore (car (read-from-string (prin1-to-string (frameset-save (frame-list))))))
> > 
> > frameset-restore is supposed to be called with a valid frameset
> > object.
> 
> That was the way I expected it to return valid frameset object, as if
> it saved, then it should be possible to restore it by reading from
> string as well.
> 
> Need more clues why it does not work.

I suggest to look in desktop.el how it loads the frameset from a file.