---
title: NSApplication.OcclusionState
framework: appkit
role: symbol
role_heading: Structure
path: appkit/nsapplication/occlusionstate-swift.struct
---

# NSApplication.OcclusionState

This constant indicates whether at least part of any window owned by this app is visible.

## Declaration

```swift
struct OcclusionState
```

## Topics

### Constants

- [visible](appkit/nsapplication/occlusionstate-swift.struct/visible.md)

### Initializers

- [init(rawValue:)](appkit/nsapplication/occlusionstate-swift.struct/init(rawvalue:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [ExpressibleByArrayLiteral](swift/expressiblebyarrayliteral.md)
- [OptionSet](swift/optionset.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)
- [SetAlgebra](swift/setalgebra.md)

## See Also

### Getting the Occlusion State

- [occlusionState](appkit/nsapplication/occlusionstate-swift.property.md)