New buffer not showing up in Emacs Buffers Menubar

[Heime <heimeborgia@protonmail.com>]

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On Tuesday, September 24th, 2024 at 8:34 PM, Stephen Berman <stephen.berman@gmx.net> wrote:

> On Tue, 24 Sep 2024 08:19:08 +0000 Heime heimeborgia@protonmail.com wrote:
> 
> > Sent with Proton Mail secure email.
> > 
> > On Tuesday, September 24th, 2024 at 7:41 PM, Stephen Berman
> > stephen.berman@gmx.net wrote:
> > 
> > > On Mon, 23 Sep 2024 22:25:17 +0000 Heime heimeborgia@protonmail.com wrote:
> > > 
> > > > Why do I need to call (switch-to-buffer dbuffer) to see the buffer made ?
> > > > 
> > > > Without it I never see the BFRN buffer in the Emacs Buffers Menubar.
> > > > 
> > > > (defun print-alist (alist &optional bfrn)
> > > > "Print Associateed List ALIST to the buffer BFRN."
> > > > 
> > > > (let* ( (bfname (or bfrn "ALIST"))
> > > > (dbuffer (get-buffer-create (concat "𒆳 " bfname))) )
> > > > 
> > > > (with-current-buffer dbuffer
> > > > (face-remap-add-relative 'default :background "blue")
> > > > 
> > > > (insert "\n ALIST \n\n")
> > > > 
> > > > (dolist (entry alist)
> > > > 
> > > > (let* ( (key (car entry) )
> > > > (value (cdr entry) )
> > > > (start (point)) )
> > > > 
> > > > ;; Insert key
> > > > (insert (format " ━ %-8s" key))
> > > > 
> > > > ;; Colourise key
> > > > (add-text-properties start (point)
> > > > `(face (:foreground "green")))
> > > > 
> > > > ;; Insert associated value
> > > > (insert (format "\n %s\n" value)) )) )
> > > > 
> > > > ;; Finally, display the buffer
> > > > (switch-to-buffer dbuffer) ))
> > > 
> > > When I comment out `(switch-to-buffer dbuffer)' and evaluate the defun
> > > in emacs -Q, I see "𒆳 ALIST" in the Buffers menu.
> > > 
> > > Steve Berman
> > 
> > I am still experiencing the problem though.
> 
> 
> Also when you run emacs -Q?
> 
> > Is there possibility of conflicts with other buffers in some situations ?
> 
> I don't know what you mean here.

That some buffers fail to display unless specifically instructed to do so.
 
> > Is there a limit to the number of buffers
> > that can be displayed in the Emacs Menubar ?
> 
> 
> Yes, the default is 15; see user option buffers-menu-max-size.

Then this is something that I would have to look into as I make
a lot of buffers for test.

Is there always a requirement to instruct pop-to-buffer, view-buffer, 
display-buffer, switch-to-buffer and display-like commands so that a 
new buffer gets shown.

;;    Directly repl
> > It is the first time I am seeing
> > this problem.
> 
> 
> Steve Berman