Calling a screen from within a class

I see that you cannot perform a 'CALL SCREEN XXXX' statement from within a method of a class since you cannot create a screen within a class. Is there any non-procedural way around this? I don't want to exit my oo-code by calling a function module that then calls a screen internally; and put all my code that should be in my class into this function module. I don't see any classes so far that I could call/instantiate to solve the problem. Any help would be appreciated.