# Stop

> Use this method to send a stop event to all Spawn systems.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine.VFX](/engine/6000.5/script-reference/unityengine/vfx.md)
* **Assembly:** UnityEngine.VFXModule

## Stop(VFXEventAttribute)

Use this method to send a stop event to all Spawn systems.

```csharp
public void Stop(VFXEventAttribute eventAttribute)
```

### Parameters

**** (\[VFXEventAttribute]\(/engine/6000.5/script-reference/unityengine/vfx/vfxeventattribute)): Can be null or a VFXEventAttribute. To create a VFXEventAttribute, use [VisualEffect.CreateVFXEventAttribute](/engine/6000.5/script-reference/unityengine/vfx/visualeffect/createvfxeventattribute.md).

### Remarks

Equivalent to SendEvent("OnStop").

## Stop()

Use this method to send a stop event to all Spawn systems.

```csharp
public void Stop()
```

### Remarks

Equivalent to SendEvent("OnStop").