AActor::HasDeferredComponentRegistration

function Engine Since 4.0

#include "GameFramework/Actor.h"

Access: public Specifiers: inline

Description

Returns true if RegisterAllComponents() was deferred at spawn time because the Blueprint SCS had not yet executed to establish the root component.

Caveats & Gotchas

• This flag is only true during the narrow window between SpawnActor and the SCS execution that produces the root component. Once RegisterAllComponents() runs, the flag resets to false — polling it after that window is meaningless.
• C++-only actors with native root components never have deferred registration; this flag is relevant almost exclusively to Blueprint actors spawned in C++ via SpawnActor.

Signature

inline bool HasDeferredComponentRegistration() const { return bHasDeferredComponentRegistration; }

Return Type

bool

Example

Guard against accessing components during deferred spawn C++

AActor* Spawned = GetWorld()->SpawnActor<AActor>(MyBlueprintClass, SpawnTransform);
if (Spawned && !Spawned->HasDeferredComponentRegistration())
{
    // Components are fully registered; safe to query
    UActorComponent* Comp = Spawned->FindComponentByClass<UActorComponent>();
}

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

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