# GetBodyUpdateCallbackTargets(Allocator)

> Get all current PhysicsWorld.bodyUpdateEvents where either of the PhysicsBody involved are valid (see PhysicsBody.isValid ) and have a callback target assigned (see PhysicsBody.callbackTarget ).

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine.LowLevelPhysics2D](/engine/6000.3/script-reference/unityengine/lowlevelphysics2d.md)
* **Assembly:** UnityEngine.Physics2DModule

```csharp
public PhysicsCallbacks.BodyUpdateCallbackTargets GetBodyUpdateCallbackTargets(Allocator allocator = Allocator.Temp)
```

### Parameters

**** (\[Allocator]\(/engine/6000.3/script-reference/unity/collections/allocator)): The memory allocator to use for the results. This can only be [Allocator.Temp](/engine/6000.3/script-reference/unity/collections/allocator/temp.md), [Allocator.TempJob](/engine/6000.3/script-reference/unity/collections/allocator/tempjob.md) or [Allocator.Persistent](/engine/6000.3/script-reference/unity/collections/allocator/persistent.md).

### Returns

| Type                                                                                                                                     | Description                                                                                                                                                    |
| ---------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [BodyUpdateCallbackTargets](/engine/6000.3/script-reference/unityengine/lowlevelphysics2d/physicscallbacks/bodyupdatecallbacktargets.md) | The contact callback target results. This must be disposed of after use otherwise leaks will occur. The exception to this is if there are no targets returned. |