How to find mouse binding in Emacs for mouse-5 events?

Question

In Gnu Emacs v23, I'd like to find out what is bound to mouse events like the following:

<mouse-5>
<double-down-mouse-5>
<double-mouse-5>
<triple-down-mouse-5>
<triple-mouse-5>

If it was a keystroke, I would just do M-x describe-key but what can I do for a mouse stoke that I cannot reliably produce, that is I don't know how to create these events consistently?

Answer 1

describe-bindings gives me a buffer with a list of all keybindings defined. Apart from others, it offers:

<C-mouse-5> mwheel-scroll
<S-mouse-5> mwheel-scroll
<mouse-5>   mwheel-scroll

where mwheel-scroll is apparently the mousewheel scrolling function :-)