notify after automatic mail recieving

[calmar <mac@calmar.ws>]

Hi,
based on a previous threat I stole this function:
,----
| (defun my-gnus-get-new-mail ()
|   "Fetch new mails at level x only."
|   (when (gnus-alive-p)
|     (let ((gnus-verbose-backends 1)
| 	  (gnus-verbose 1)
| 	  (win (current-window-configuration)))
|       (unwind-protect
| 	  (save-window-excursion
| 	    (save-excursion
| 	      (set-buffer gnus-group-buffer)
|                    (gnus-group-get-new-news 4)))
| 	(set-window-configuration win)))))
`----

What I would like is when gnus can notify me when new mails
arrived.
p.e with a pop-up windows, or just an external program which
might play a nice sound or however.

Obviously, as far as I was able to
understand, gnus-group-get-new-news does not really have a return
value which I could exploit.

But obvioudly this function has a hook:
gnus-after-getting-new-news-hook
(I assume this is executed everytime after trying to get new
news, or only when there really came-in new news?)

So when there is a function which can check a group for new
news/mails, probably I should be able to write this hook myself.

Probably something like this: 
(if  (gnus-check-if-unread-messages-in-group)  
       (call-process  "whatever"))
; or pop up (x)emacs own pop-up messagewindow/sound


Does anybody know the name of this ((fantasy-name):
`gnus-check-if-unread-messages-in-group') function if it exists?

Many Thanks
-- 
calmar (o_         
       //\   <--- GNU/Linux is GREAT     
       V_/_       www.calmar.ws