Delegates - barsandcat/HMS-Sunflower GitHub Wiki

https://dev.epicgames.com/documentation/en-us/unreal-engine/delegates-and-lamba-functions-in-unreal-engine?application_version=5.5 Delegate is a callable. Delegate type is function signature. Delegate requires initialization - "bind" to something else callable, i.e. its a wrapper. If you are wrapping reference to UObject with delegate, you can check if it is alive before executing delegate. Delegates support std::bind functionality

Unreal handles 4 types of delegates:

DECLARE_DELEGATE -> TDelegate Functor that can have return

DECLARE_MULTICAST_DELEGATE, DECLARE_EVENT ->TMulticastDelegate Multicast is array of functors with no returns

DECLARE_DYNAMIC_DELEGATE ->TBaseDynamicDelegate Dynamic delegates are actually completely different breed, the need to be checked if bound before calling, they are slow, but support "serialization", and can be called by name?

DECLARE_DYNAMIC_MULTICAST_DELEGATE -> TBaseDynamicMulticastDelegate