Unreal Engine 4 Scripting with C++ Cookbook

Checking if a class implements a UInterface

Follow the first two recipes so that you have a UInterface we can check for, and a class implementing the interface, which can be tested against.

How to do it...

1. Inside your Game Mode implementation, add the following code to the BeginPlay function:

   FTransformSpawnLocation;
   ASingleInterfaceActor* SpawnedActor = GetWorld()->SpawnActor<ASingleInterfaceActor> (ASingleInterfaceActor::StaticClass(), SpawnLocation);
   if (SpawnedActor->GetClass()->ImplementsInterface(UMyInterface::StaticClass()))
   {
     GEngine->AddOnScreenDebugMessage(-1, 1, FColor::Red, TEXT("Spawned actor implements interface!"));
   }

2. Given that we are referencing both ASingleInterfaceActor and IMyInterface, we need to #include both MyInterface.h and ...