Dynamic Multicast delegate: How to bind lambda?

[maschere]

I just faced a similar problem and solved it using a little wrapper class:

UCLASS()
class ULambdaWrapper : public UObject
{
	GENERATED_BODY()
public:
	TFunction<void()> CallFn;
	UFUNCTION()
	void Dispatch() { CallFn(); }
};

That way you can “bind” a lambda like this:

auto btnWrap = NewObject<ULambdaWrapper>();
btnWrap->CallFn = [this]{//do lambda stuff};
someButton->OnClicked.AddDynamic(btnWrap, &ULambdaWrapper::Dispatch);