---
title: fullScreenPrimary
framework: appkit
role: symbol
role_heading: Type Property
path: appkit/nswindow/collectionbehavior-swift.struct/fullscreenprimary
---

# fullScreenPrimary

The window can enter full-screen mode.

## Declaration

```swift
static var fullScreenPrimary: NSWindow.CollectionBehavior { get }
```

## See Also

### Full screen

- [fullScreenAuxiliary](appkit/nswindow/collectionbehavior-swift.struct/fullscreenauxiliary.md)
- [fullScreenNone](appkit/nswindow/collectionbehavior-swift.struct/fullscreennone.md)
- [fullScreenAllowsTiling](appkit/nswindow/collectionbehavior-swift.struct/fullscreenallowstiling.md)
- [fullScreenDisallowsTiling](appkit/nswindow/collectionbehavior-swift.struct/fullscreendisallowstiling.md)