FTimerManager::TimerExists

function Engine Since 4.0

#include "TimerManager.h"

Access: public Specifiers: inline

Description

Returns true if a timer with the given handle exists in the active, paused, or pending list. Useful as a guard before reading timer state.

Caveats & Gotchas

• A handle can become stale after ClearTimer is called — the same FTimerHandle struct then refers to nothing, and TimerExists will return false. Do not reuse invalidated handles.
• This does not tell you whether the timer is active; a paused or pending timer also returns true. Use IsTimerActive, IsTimerPaused, or IsTimerPending for state-specific checks.

Signature

inline bool TimerExists(FTimerHandle InHandle) const

Parameters

Name	Type	Description	Default
InHandle	FTimerHandle	Handle to the timer to check for existence.	—

Return Type

bool

Example

Guard against setting duplicate timers C++

void AMyActor::TryStartRegen()
{
    FTimerManager& TM = GetWorld()->GetTimerManager();
    if (!TM.TimerExists(RegenHandle))
    {
        TM.SetTimer(RegenHandle, this, &AMyActor::OnRegen, 1.0f, true);
    }
}

Version History

Introduced in: 4.0

Version	Status	Notes
5.6	stable	—

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