[solved] Re: How to open full window programmatically?

[Jean Louis]

* Emanuel Berg via Users list for the GNU Emacs text editor 
<help-gnu-emacs@gnu.org> [2020-12-03 12:09]:
> Jean Louis wrote:
> 
> >> What you're looking for is probably `delete-other-windows'.
> >> I have that M-p.
> >
> > That is interactively rather than programmatically.
> 
> OK, here you have it, programmatically, then:
> 
>   (delete-other-windows)

(defun hyperscope-key ()
  (interactive)
  (let ((buffer "*HyperScope*"))
    (get-buffer-create buffer)
    (if hyperscope-full-window
        (progn
          (delete-other-windows)        
          (switch-to-buffer buffer))
      (switch-to-buffer-other-window buffer))
    (hyperscope)))

Thank you, I solved it this way.