UActorComponent::IsUsingRegisteredSubObjectList

function Engine Since unknown

#include "Components/ActorComponent.h"

Access: public Specifiers: inline

Description

Returns true if this component replicates its sub-objects via the registered sub-object list rather than the legacy virtual ReplicateSubObjects method. Requires the owning actor to also have bReplicateUsingRegisteredSubObjectList enabled.

Caveats & Gotchas

• Both the component and its owning actor must opt in; enabling this flag on the component while the actor still uses the legacy path silently falls back to ReplicateSubObjects().
• The registered sub-object list path is the preferred modern approach introduced in UE 5.1; the legacy ReplicateSubObjects virtual is still called when this returns false, maintaining backward compatibility.

Signature

bool IsUsingRegisteredSubObjectList() const { return bReplicateUsingRegisteredSubObjectList; }

Return Type

bool

Example

Checking the replication path before registering a sub-object C++

void UMyComponent::BeginPlay()
{
    Super::BeginPlay();
    if (IsUsingRegisteredSubObjectList())
    {
        AddReplicatedSubObject(MySubObject);
    }
}

Version History

Introduced in: unknown

Version	Status	Notes
5.6	stable	—

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