How do I call a function on a button press?

[asdfCYBER]

I'm trying to follow DMagic's UI tutorial, and I am currently trying to get my head around interfaces - and buttons. I can call any public function with OnClick(), but I'm not sure how to send that event to the KSP assembly.
What I've thought of are setting some variable to a certain value and checking every once in a while through the interface if that variable has changed, and calling a GameEvent which gets picked up by the other assembly (I'm not sure if that's possible). Would either of these methods work, or is there a better way to do this?

[maja]

Which tutorial? DialogGUI? If yes, then one of the parameters of a button constructor is OnClick function. Just pass it without parenthesis (e.g. OnClick) to the constructor.

[asdfCYBER]

15 hours ago, maja said:

Which tutorial? DialogGUI?

Oops I meant this one:

 

[maja]

Follow the section 3, there it is. I started with this tutorial a few weeks ago, then leaved it for a while and must start once again, so I can't help you more right now