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C++ FunctionLibrary error in Blueprint


I just got a problem with a FunctionLibrary. This is the fist time I tried create a new one and I'm new to programming in general so I'm going to describe exactly what I did:

1: I went to File > Add Code to Project and choose Blueprint Function Library.

2: I added the following code to the library:


 UFUNCTION(BlueprintCallable, Category = "Test")
         UObject*GetDefaultObject(TSubclassOf<UObject> ObjectClass);


 UObject* UMyFunctionLibrary::GetDefaultObject(TSubclassOf<UObject> ObjectClass)
     return ObjectClass->GetDefaultObject();

The node can now be used in a Blueprint. But when I try to compile I get an Error: alt text

I have found the Code for the Function in the Internet but it was only the C++ part. So I tried to do the rest on my own.

I'm a little confused now. Maybe you can tell me, what I have done wrong.

Product Version: Not Selected
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asked Apr 08 '15 at 02:25 PM in C++ Programming

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"Target" should pin points to object on which the function is called on, it is required to plug somthing to it or else VM won't know to which object call a function. If you want to create function not realted to object of this class you need to create static function, you only need to add "static" to function decleration in header file:

  UFUNCTION(BlueprintCallable, Category = "Test")
  static UObject* GetDefaultObject(TSubclassOf<UObject> ObjectClass);

This way Target pin will disapper and you won't need to deliver any object

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answered Apr 08 '15 at 02:32 PM

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avatar image Excalibro Apr 08 '15 at 02:58 PM

Thanks it worked:)

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