How can I get a reference to a blueprint in c++?

Development Programming & Scripting Blueprint
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1

Then, access its variables and print the name of that blueprint?

2

Use the UBlueprint class to store a reference to your blueprint, then use GetName() or GetFriendlyName() to retrieve its name.

3

Edit: I ended up figuring this out and answering someone else’s question here:
https://answers.unrealengine.com/questions/60897/spawn-actorobject-from-code.html#answer-132744

Well, I found the answer to the first question, although I can’t figure out how to access any of the blueprint’s variables.

ConstructorHelpers::FObjectFinder<UBlueprint> BlueprintObj(TEXT("Blueprint'/Game/Path/SomeBlueprint.SomeBlueprint'"));

 UBlueprint* blueprint = NULL;
 if (BlueprintObj.Succeeded()) {
      blueprint = BlueprintObj.Object;
 }

Path to blueprint is found by right clicking it in the editor and choosing copy reference.

Then to print:

 if (GEngine)
 {
      GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Yellow, blueprint->GetName());
 }
4

In the sample you posted below, simply call blueprint->GetFriendlyName(); after successfully retrieving the UBlueprint pointer and then print it using whichever printing method you’re using.

5

Thanks, but actual code would be much more useful to me. I just started getting into the C++ side of the Engine yesterday.

6

It’s the “whichever printing method you’re using” that I’m stuck on. Tried both UE_LOG and GEngine method.

 GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Yellow, blueprint->GetName());

The above code won’t compiile. I’ve tried all sorts of casting methods and looking at FString to cast to whatever it needs but can’t get it to work.

7

Figured it out. I was getting a potentially uninitialized local variable 'blueprint' used message. I just set it to NULL. It works now.