x

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"

Call a blueprint function in c++ by name and get the return value

Hi,

I know the following commend will run a blueprint function by a given name : CallFunctionByNameWithArguments("function name", outputDeviceNull, NULL, true)

I want to know if there is a way to get the return value of such function if it has any.

Product Version: UE 4.12
Tags:
more ▼

asked Nov 12 '16 at 11:39 AM in C++ Programming

avatar image

plangton
367 17 20 31

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

1 answer: sort voted first

I found a work around. I use a BlueprintImplementable function and cast it to a predefine interface. this way i can simply be sure that a specific function exist in a class, because the class is drived from the interface I have already have access to.

Here is a sample code

Interface :

     class IMyinterface
     {
     public:
         virtual bool SampleFunction() = 0;
     };

Blueprint class

 UCLASS(Blueprintable)
 class TEST_THREAD_API ASample_Actor : public AActor, public IMyinterface
 {
   GENERATED_BODY()
 
 public:
 
   UFUNCTION(BlueprintImplementableEvent, Category = "some category")
     bool SampleFunction();
 };


Now you can always cast a pointer of "ASample_Actor*" to "IMyinterface*" and access the interface functions ( in this case it's SampleFunction )

more ▼

answered Nov 16 '16 at 12:39 PM

avatar image

plangton
367 17 20 31

(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