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

# queue

The queue that the framework uses when dispatching messages to any of the display’s registered handlers.

## Declaration

```swift
var queue: dispatch_queue_t? { get set }
```

## Discussion

Discussion Most often, your app provides a serial queue. If you can benefit from dispatching events out of order, handle the messages on the serial queue and redispatch them to other queues as necessary.