Unreal Engine 4 Scripting with C++ Cookbook

Creating a delegate that is bound to a UFUNCTION

Delegates allow us to call a function without knowing which function is assigned. They are a safer version of a raw function pointer. This recipe shows you how to associate a UFUNCTION to a delegate so that it is called when the delegate is executed.

Getting ready

Ensure you've followed the previous recipe in order to create a TriggerVolume class.

How to do it...

1. Inside our GameMode header, declare the delegate with the following macro, just before the class declaration:

   DECLARE_DELEGATE(FStandardDelegateSignature)
   UCLASS()
   class UE4COOKBOOK_API AUE4CookbookGameMode : public AGameMode

2. Add a new member to our game mode:

   FStandardDelegateSignature MyStandardDelegate;

3. Create a new Actor class called DelegateListener ...