How to add a tool-bar button in emacs?

Question

I try to add a button in the tool-bar but that doesn\'t works. how to do that, i check in Emacs wiki and i find nothing. I used emacs 24.3.1. The toolsbar are displayed but

Answer 1

Hi i found a simple solution to add a toolbar button "spell" is the image in /usr/share/emacs/23.4/etc/images/

(defun omar-hotel ()
 "another nonce menu function"
 (interactive)
 (message "hotel, motel, holiday inn"))

    (tool-bar-add-item "spell" 'omar-hotel
               'omar-hotel
               :help   "Run fonction omar-hotel")