# Value

> The underlying event identifier value.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine.LightTransport](/engine/6000.5/script-reference/unityengine/lighttransport.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public ulong Value
```

### Remarks

This value is implementation-specific and carries the actual event identifier used by the device context. The interpretation of this value depends on the concrete implementation:

* **CPU Implementations:** May store thread handles, condition variables, or other synchronization primitives.
* **GPU Implementations:** May store OpenCL event objects, CUDA event handles, or API-specific synchronization objects.

User code should treat this value as opaque and only use it for equality comparisons or debugging purposes.