What are all the possible settings attributes in TinyMCE's addButton() function?

Question

The documentation is not very clear on this.

name - String - Button name to add.

settings - Object - Settings object with title, cmd etc

Answer 1

What you would like to know is what settings may fit into the settings object (tinymce 3). Here it is:

title       --> title
label       --> label
scope       --> scope
onclick     --> function to be called onclick
menu_button --> flag, defines if the button is a menu button
cmd         --> tinymce command to get executed onClick
ui          --> paramter for the tinymce command cmd
value       --> value for the tinymce command cmd

Those settings get assigned in the function createButton of the class ControlManager.