---
title: VZGraphicsDisplayObserver
framework: virtualization
role: symbol
role_heading: Protocol
path: virtualization/vzgraphicsdisplayobserver
---

# VZGraphicsDisplayObserver

A protocol you implement to observe state changes in graphic displays.

## Declaration

```swift
protocol VZGraphicsDisplayObserver : NSObjectProtocol
```

## Overview

Overview Implement the methods in this protocol to observe and react to display reconfiguration.

## Topics

### Reacting to changes in display configuration

- [displayDidBeginReconfiguration(_:)](virtualization/vzgraphicsdisplayobserver/displaydidbeginreconfiguration(_:).md)
- [displayDidEndReconfiguration(_:)](virtualization/vzgraphicsdisplayobserver/displaydidendreconfiguration(_:).md)

## Relationships

### Inherits From

- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Observing changes to the display configuration

- [addObserver(_:)](virtualization/vzgraphicsdisplay/addobserver(_:).md)
- [removeObserver(_:)](virtualization/vzgraphicsdisplay/removeobserver(_:).md)