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# NSVisualEffectView.State

Constants to specify how the material appearance should reflect window activity state.

```
enum State
```

## Topics

### Visual Effect View States

[`NSVisualEffectView.State.followsWindowActiveState`](/documentation/AppKit/NSVisualEffectView/State-swift.enum/followsWindowActiveState)

The backdrop should automatically appear active when the window is active, and inactive when it is not.

[`NSVisualEffectView.State.active`](/documentation/AppKit/NSVisualEffectView/State-swift.enum/active)

The backdrop should always appear active.

[`NSVisualEffectView.State.inactive`](/documentation/AppKit/NSVisualEffectView/State-swift.enum/inactive)

The backdrop should always appear inactive.


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