# Sandbox.VR.DigitalInput.Delta

```csharp
bool Delta { get; set; }
```

How much [Sandbox.VR.DigitalInput.IsPressed](/api/Sandbox.VR.DigitalInput/IsPressed) has changed since the last update.

Declared in [Sandbox.VR.DigitalInput](/api/Sandbox.VR.DigitalInput).
Assembly: `Sandbox.Engine`.