| ecl::Signal< Data > | Signalling component of a callback system | 
| ecl::Signal< Void > | Specialised signal that emits without passing data | 
| ecl::SigSlot< Data > | Not for direct use, provides the power behind both signals and slots | 
| ecl::SigSlot< Void > | Not for direct use, provides the power behind both void signals and slots | 
| ecl::SigSlotsManager< Data > | The sigslots connection manager | 
| ecl::Slot< Data > | Function loading component of a callback system | 
| ecl::Slot< Void > | Specialised slot that handles void callbacks | 
| ecl::Topic< Data > | Stores publisher and subscriber lists to a uniquely string identified topic |