(UE5.3) how to bind to multicast delegate in C++?

Development Programming & Scripting
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3

For dynamic delegates there is a macro named AddDynamic with params ContextObject(usually passing this) & UFunction pointer (usually passed like &ASomeClass::OnSomeFunction as said in other comment)

But. If your delegate need no being exposed to bp, then it’s better to use native (non-dynamic) delegates, as they have way more ways to interact with cpp. So your code will looks like:

//header
DECLARE_MULTICAST_DELEGATE_OneParam(FMsgDispatcherNative, const struct FRecvContext&);

UClass
class UXXComponent:  : public UActorComponent
{
	GENERATED_BODY()
public:
	UPROPERTY(BlueprintAssignable)
	FMsgDispatcherNative OnRecvMsg;
}

//cpp
void UXXComponent::someFunction()
{
     OnRecvMsg.AddLambda([](const struct FRecvContext& Context){
         //some actions with `Context`
     });

    FRecvContext Context = ... ;
    OnRecvMsg.Broadcast(Context);
}

If you need both types of delegates then usually i’m define both types and call broadcasts next to each other