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

# modeChangeHandler

A handler that the framework calls to change the virtual display’s graphics mode.

## Declaration

```swift
var modeChangeHandler: PGDisplayModeChangeHandler? { get }
```

## See Also

### Inspecting the Display Handlers

- [queue](paravirtualizedgraphics/pgdisplay/queue.md)
- [cursorShowHandler](paravirtualizedgraphics/pgdisplay/cursorshowhandler.md)
- [newFrameEventHandler](paravirtualizedgraphics/pgdisplay/newframeeventhandler.md)