C++ Blueprint conversion reference?

General Feedback & Requests
1

I may have missed it but is there or could we get a reference that shows similar functions between C++ and Blueprint. Basically it would be nice to see a reference to what related Blueprint functions would be in the C++ documentation, and what related C++ functions would be in the blueprint documentation.

2

Blueprints are not similar to C++ function… Blueprint functions ARE C++ functions (except some custom flow nodes) and C++ API reference already mark functions and variables available in blueprint with blue file icon

https://docs.unrealengine.com/latest/INT/API/RuntimeModules/Engine/GameFramework/AActor/index.html

Engine automaticly generates nodes that are flaged


UFUNCTION(BlueprintCallable, Category="Input")
virtual void DisableInput
(
    class APlayerController * PlayerController
)

Arguments become inputs (or else HidePin is used) return type becomes return value output, it takes name of a function and adds spaces automaticly (or else FriendlyName or DisplayName meta i used).

So yes you can use C++ API refrence as a Blueprint API reference already :slight_smile: I think they could add blueprint filter in API efrence so you can only see stuff available for blueprint and some specific icons from blueprint callbale, blueprint pure etc.

3

Thanks, that is what I was looking for, not sure how I missed it.

4

Coming in 4.2 (CL# 2044026 if you’re on latest/unstable) is an option in the right-click menu on nodes called “Goto Code Definition”, which you can also use to reinforce the mapping between how particular functions are declared and the nodes they’re created.

Cheers,
Noland

5

Cheers! thanks noland. I have been waiting for this. Often times finding where some of the BP node declarations were hard to find.

6

Hi KRushin,

Right now you can copy the node and paste it into Notepad++ or another text editor and check the FunctionReference.

For example:

FunctionReference=(MemberName=“GetActorBounds”,bSelfContext=True)
FunctionReference=(MemberParentClass=Class’/Script/Engine.KismetMathLibrary’,MemberName=“Add_FloatFloat”)

The first case is AActor::GetActorBounds, but since it’s a method in the Blueprint or a parent class of the Blueprint (bSelfContext=true), it doesn’t tell you the exact class.

The second case is UKismetMathLibrary::Add_FloatFloat, and it gives you more information since it’s a method on another class (a class named KismetMathLibrary in the Engine module; the missing U, A, or F on the front of the struct/class name is an unfortunate legacy we’re stuck with).

Cheers,
Noland