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# contentAspectRatio

The window’s content aspect ratio.

```
var contentAspectRatio: NSSize { get set }
```

## Discussion

By default, the content aspect ratio (that is, height in relation to width) is `(0, 0)`. If you set the aspect ratio of a window’s content view, the dimensions of its content rectangle are constrained to integral multiples of that ratio when users resize it. You can set a window’s content view to any size programmatically, regardless of its aspect ratio. The value of this property takes precedence over [`aspectRatio`](/documentation/AppKit/NSWindow/aspectRatio).

---

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