Search in
Sort by:

Question Status:

Search help

  • Simple searches use one or more words. Separate the words with spaces (cat dog) to search cat,dog or both. Separate the words with plus signs (cat +dog) to search for items that may contain cat but must contain dog.
  • You can further refine your search on the search results page, where you can search by keywords, author, topic. These can be combined with each other. Examples
    • cat dog --matches anything with cat,dog or both
    • cat +dog --searches for cat +dog where dog is a mandatory term
    • cat -dog -- searches for cat excluding any result containing dog
    • [cats] —will restrict your search to results with topic named "cats"
    • [cats] [dogs] —will restrict your search to results with both topics, "cats", and "dogs"

Office Holiday

Epic Games' offices will be on holiday from June 22nd to July 7th. During this period support will be limited. Our offices will reopen on Monday, July 8th. 

What is the right syntax of FClassFinder and how could I generaly use it to find a specific blueprint?

What is the right syntax of FClassFinder and how could I generally use it to find a specific blueprint? I have read a ton of information and couldn't find explanation of syntax or any useful reference. Preferably I would like to know how to find all child classes of an abstract C++ class( which themselves would be Blueprints ). Example of usage I found ( And my guesses )

static ConstructorHelpers::FClassFinder VarIGetIt(TEXT("BlueprintIWantToFind'/Content/StaticMeshes/Meshes/Ship/BlueprintIWantToFind.BlueprintIWantToFind_C'"));
if (VarIGetIt.Class != NULL)
    ClassIsHereNow = VarIGetIt.Class;

Thank you in advance.

P.S. Would be glad if someone would point me at a good source about UClass and general class management of classes in Unreal.

Product Version: UE 4.12
more ▼

asked Jul 13 '16 at 01:38 PM in C++ Programming

avatar image

13 1 2 3

(comments are locked)
10|2000 characters needed characters left
Viewable by all users

1 answer: sort voted first

Hey AlexHonor,

An example of FClass finder can be found when you want to assign a Game Modes default classes types, such as:

 AFPSCPPGameMode::AFPSCPPGameMode() : Super()
     static ConstructorHelpers::FClassFinder<APawn> PawnClassAsset(TEXT("/Game/FirstPersonCPP/Blueprints/FirstPersonCharacter"));
     if(PawnClassAsset.Succeeded( ))
         DefaultPawnClass = PawnClassAsset.Class;
     static ConstructorHelpers::FClassFinder<APlayerController> ControllerClassAsset( TEXT("/Game/FirstPersonCPP/Blueprints/FPSCPPController_BP") );
     if (ControllerClassAsset.Succeeded( ))
         PlayerControllerClass = ControllerClassAsset.Class;
     HUDClass = AFPSCPPHUD::StaticClass();

To break it down further:

FClassFinder is going to give you a class back. The type of the class follows FClassFinder, such as:

static ConstructorHelpers::FClassFinder or static ConstructorHelpers::FClassFinder.

Then you need to declare a variable for the return, such as:

static ConstructorHelpers::FClassFinder PawnClassAsset

After that, you need to give the path to the asset, in the Content folder, such as:

static ConstructorHelpers::FClassFinder PawnClassAsset(TEXT("/Game/FirstPersonCPP/Blueprints/FirstPersonCharacter"));

more ▼

answered Jul 13 '16 at 01:52 PM

avatar image

ImVawx ♦♦ STAFF
6.8k 114 18 127

avatar image AlexHonor Jul 13 '16 at 02:39 PM

Finally, It works. Thank you for your answer. It is pretty much what I have wanted to hear, but an important note has to be made. If somebody is still interested. Search path that is provided is not a common search path, but a weird one starting with "/Game/" and further the path relative to Content folder itself. You can see it in a hint if you stick your mouse over a blueprint for a while.

(comments are locked)
10|2000 characters needed characters left
Viewable by all users
Your answer
toggle preview:

Up to 5 attachments (including images) can be used with a maximum of 5.2 MB each and 5.2 MB total.

Follow this question

Once you sign in you will be able to subscribe for any updates here

Answers to this question