UAbilitySystemComponent::CallAllReplicatedDelegatesIfSet

#include "AbilitySystemComponent.h"

Access: public

Description

Fires all pending replicated delegates (target data and generic events) that have already been received but not yet invoked for the given ability activation.

Caveats & Gotchas

• The header comment warns this can be dangerous when multiple places in an ability register events and then call this function — delegates registered by one code path may be fired unexpectedly by another path's call.
• Prefer the targeted variants (CallReplicatedTargetDataDelegatesIfSet / CallReplicatedEventDelegateIfSet) when only a specific delegate type needs to be flushed, to avoid unintended cross-task interactions.

Signature

void CallAllReplicatedDelegatesIfSet(FGameplayAbilitySpecHandle AbilityHandle, FPredictionKey AbilityOriginalPredictionKey)

Parameters

Name	Type	Description	Default
AbilityHandle	FGameplayAbilitySpecHandle	Handle to the ability spec.	—
AbilityOriginalPredictionKey	FPredictionKey	The prediction key identifying the activation.	—

Return Type

void

Example

Flushing all pending data at ability activation C++

void UMyGameplayAbility::ActivateAbility(
    const FGameplayAbilitySpecHandle Handle,
    const FGameplayAbilityActorInfo* ActorInfo,
    const FGameplayAbilityActivationInfo ActivationInfo,
    const FGameplayEventData* TriggerEventData)
{
    Super::ActivateAbility(Handle, ActorInfo, ActivationInfo, TriggerEventData);
    // Flush any replication data already received before ability tasks register delegates
    ActorInfo->AbilitySystemComponent->CallAllReplicatedDelegatesIfSet(
        Handle, ActivationInfo.GetActivationPredictionKey());
}

Version History

Introduced in: 4.15

Version	Status	Notes
5.6	stable	—

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