How to handle with a default URL scheme

I want to build URI (or URL scheme) support in my app.

I do a LSSetDefaultHandlerForURLScheme() in my + (void)initialize and I setted the specific URL schemes also in my info.plist. So I have URL schemes without Apple Script or Apple Events.

When I call myScheme: in my favorite browser the system activates my app.

The problem is, how to handle the schemes when they are called. Or better said: How can I define what my app should do, when myScheme: is called.

Is there a special method that I have to implement or do I have to register one somewhere?