UActorComponent::AllowReregistration

function Engine Since 4.0

#include "Components/ActorComponent.h"

Access: public Specifiers: inline

Description

Returns whether this component class permits automatic reregistration during `ReregisterAllComponents` calls (typically triggered by live editing or component reconstruction). Controlled by the `bAllowReregistration` protected flag.

Caveats & Gotchas

• The `bAllowReregistration` flag is protected and must be set in a subclass constructor to opt out. Once set to false, the component will be silently skipped during world reregistration passes, which can cause it to appear as if editor changes have no effect.
• This only affects batch reregistration (e.g. `ReregisterAllComponents`) — individual `RegisterComponent`/`UnregisterComponent` calls ignore this flag.

Signature

inline bool AllowReregistration() const { return bAllowReregistration; }

Return Type

bool

Example

Disable reregistration in a specialized component C++

UMySpecialComponent::UMySpecialComponent()
{
    // Prevent this component from being torn down and rebuilt
    // during editor reconstruction passes
    bAllowReregistration = false;
}

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

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