---
title: sizeInMillimeters
framework: Paravirtualized Graphics
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 14.0+, macOS 11.0+]
path: paravirtualizedgraphics/pgdisplaydescriptor/sizeinmillimeters
---

# sizeInMillimeters

The size in millimeters of the virtual display.

## Declaration

```swift
var sizeInMillimeters: NSSize { get set }
```

## Discussion

Discussion The device propagates the display size to the guest operating system. The app can scale the resulting screen data to a different size in its user interface.

## See Also

### Specifying the Display Properties

- [name](paravirtualizedgraphics/pgdisplaydescriptor/name.md)