UBlackboardComponent::GetKeyType

function AIModule Since 4.0

#include "BehaviorTree/BlackboardComponent.h"

Access: public Specifiers: const

Description

Returns the UBlackboardKeyType subclass (Bool, Int, Float, Object, Vector, and so on) used to store the value under the given key.

Caveats & Gotchas

• Returns null if the KeyID is invalid or the blackboard has no asset assigned.
• Use IsKeyOfType<T> instead when you already know the expected type at compile time and just need a bool check.

Signature

TSubclassOf<UBlackboardKeyType> GetKeyType(FBlackboard::FKey KeyID) const

Parameters

Name	Type	Description	Default
KeyID	FBlackboard::FKey	The key ID to look up.	—

Return Type

TSubclassOf<UBlackboardKeyType>

Example

Check a key's underlying type C++

if (BlackboardComp->GetKeyType(KeyID) == UBlackboardKeyType_Object::StaticClass())
{
    UObject* Value = BlackboardComp->GetValueAsObject(BlackboardComp->GetKeyName(KeyID));
}

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

Feedback

Was this helpful?