Re: Control help- and Info-mode buffers from other buffers

[Juri Linkov]

>   (progn
>     (add-hook 'pre-command-hook (lambda () (other-window 1)))
>     (add-hook 'post-command-hook (lambda () (other-window -1))))

Sorry, this is wrong, it tried to run the same command
that was bound in the original window buffer.

This is the correct implementation that works in all cases:

#+begin_src emacs-lisp
(progn
  (add-hook 'pre-command-hook
            (lambda ()
              (other-window 1)
              (setq this-command (key-binding (this-command-keys)))))
  (add-hook 'post-command-hook (lambda () (other-window -1))))
#+end_src