Making XML-RPC calls from Cocoa or Carbon apps

I was wondering: how do you make XML-RPC calls from Cocoa apps?

It turns out that the Apple Event Manager supports XML-RPC. That’s so cool. Any developer already familiar with constructing Apple events will find doing XML-RPC calls a piece of cake.

And of course the example used in the above page is the canonical betty.userland.com example, a nice touch which warmed my heart.