Get the Window's class

The AutoIt Window Info tools shows at the top "Basic Window Info" and gives us the title and class of the currently active window.

I want to do just that, get the title and class (that the info tool also shows) of the currently active window. To clarify, I marked the strings that I'm after in this screenshot:


It's simple to  get the title:

Local $wintitle = WinGetTitle("[ACTIVE]")

But how do I get the class?

Cheers!