# EnabledRefRO(SafeBitRef)

> Constructor for read-only enable reference to enableable component.

## Definition

* **Type:** Constructor
* **Namespace:** [Unity.Entities](/engine/7000.0/script-reference/unity/entities.md)
* **Assembly:** UnityEngine.EntitiesModule

```csharp
public EnabledRefRO(SafeBitRef ptr)
```

### Parameters

**** (\[SafeBitRef]\(/engine/7000.0/script-reference/unity/entities/safebitref)): Pointer to single bit and safety handle