' FB 1.05.0 Win64 ' FB does not currently support multiple inheritance. Composition has to be used instead if one wants ' to (effectively) inherit from more than one class. In some cases, this might arguably be a better ' solution anyway. Type Camera Extends Object ' if virtual methods etc needed ' ... End Type Type Phone Extends Object ' ... End Type Type CameraPhone Extends Phone ' single inheritance cam As Camera ' using composition here ' other stuff End Type