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# NSWindow.OcclusionState

Specifies whether the window is occluded.

```
struct OcclusionState
```

## Topics

### Constants

[`visible`](/documentation/AppKit/NSWindow/OcclusionState-swift.struct/visible)

If set, at least part of the window is visible; if not set, the entire window is occluded. A window that has a nonrectangular shape can be entirely occluded onscreen, but if its bounding box falls into a visible region, the window is considered to be visible. Note that a completely transparent window may also be considered visible.

### Occlusion State Creation

[`init(rawValue:)`](/documentation/AppKit/NSWindow/OcclusionState-swift.struct/init(rawValue:))

Creates an occlusion state using the given raw value.


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