Spawn "Object" from string reference in C++?

Development Programming & Scripting
1

I want to be able to do something according to the “idea” in this code snipet (that doesn’t work).

TArray<UObject*> UFuzzyFetcherLibrary::getAllMatchingObjects(const FString& json)
{
	TArray<UObject*> result; 
	static ConstructorHelpers::FClassFinder<UObject> theClass(TEXT("Class'/Script/PluginProject.MyObject'"));
	if (theClass.Class) {
		UObject* classPointer = (UObject*)theClass.Class.GetDefaultObject();
		result.Push(classPointer);
	}
	
	return result;
}

Later the string will be provided from an external source. The objects are not necessarly BPs and if possible I would like to be able to keep it that way. Currently the Array contains zero object when i use this function from blueprints, probably due to the “ClassFinder” not finding the class.

3

In additiona to what cancel has said, StaticLoadObject is also useful if you’re looking to create an instance of an object from a path, e.g. loading a static mesh:

UStaticMesh* meshToUse = Cast<UStaticMesh>(StaticLoadObject(UStaticMesh::StaticClass(), NULL, TEXT("pathToYourAssetHere")));
 
if(meshToUse && mesh)
{
     mesh->SetStaticMesh(meshToUse);
}
4

In the end i found it to allways be easier to just add a UPROPERTY to my class and set the value in the editor holding the class type i want to spawn.