Can't override nor call c++ functions with BP

anonymous_user_0ba2eb3c · August 30, 2016, 3:46pm

I’m trying to override some c++ functions with BP but they don’t even show up.

EDIT: Okay, I found the problem. It turns out that you need to put BlueprintCallable on the UFUNCTION parameters. Like UFUNCTION(BlueprintImplementableEvent, Category = "Inventory InGameUI") void OnAddContainer(int32 containerItemID);. Thanks!

InventoryMainWidget class is child from CommonWidget class that is child from UUserWidget

InventoryMainWidget.h

public: 
	UFUNCTION(BlueprintImplementableEvent, Category = "Inventory InGameUI")
	void OnAddContainer(int32 containerItemID);

	UFUNCTION(BlueprintImplementableEvent, Category = "Inventory InGameUI")
	void EquipWearable(int32 wearableItemID);

	UFUNCTION(BlueprintImplementableEvent, Category = "Inventory InGameUI")
	void AddItemSlot(int32 itemID);

Thanks in advance!

anonymous_user_2b03d27c · August 30, 2016, 4:25pm

Hey ItsaMeTuni-

For the functions you’re using, rather than searching for them in the override dropdown, you can simply right click in the event graph and create an event node for the given functions.

Cheers

anonymous_user_0ba2eb3c · August 30, 2016, 5:01pm

it doesn’t appear on the list when I right click

anonymous_user_2b03d27c · August 30, 2016, 6:37pm

After creating the widget blueprint in the editor, did you reset it’s parent to your custom class? You can do this by going to File in the widget blueprint and selecting Reparent Blueprint. This should allow the functions to appear in the right click menu as well as in the Overrides drop down.

anonymous_user_2b03d27c · August 30, 2016, 7:22pm

Can you provide context on what didn’t work? What is the parent class for the class you added your code to? Can you explain what you’ve done so far and where the problem is occurring?

anonymous_user_0ba2eb3c · August 30, 2016, 7:11pm

Nope. Didn’t work.

anonymous_user_0ba2eb3c · August 30, 2016, 7:29pm

I can’t find the override neither the event from the c++ function in the widget BP graph. I’ve alredy reset the widget’s parent class (wich is the c++ class InventoryMainWidget). InventoryMainWidget is derived from the CommonWidget class that is derived from unreal’s UUserWidget class.

anonymous_user_0ba2eb3c · August 30, 2016, 7:50pm

I found what the problem was. Just see the edit I made. Thanks !