---
title: PMDuplexMode
framework: applicationservices
role: symbol
role_heading: Type Alias
path: applicationservices/pmduplexmode
---

# PMDuplexMode

Constants that specify duplex mode settings.

## Declaration

```swift
typealias PMDuplexMode = UInt32
```

## Topics

### Constants

- [kPMDuplexNone](applicationservices/kpmduplexnone.md)
- [kPMDuplexNoTumble](applicationservices/kpmduplexnotumble.md)
- [kPMDuplexTumble](applicationservices/kpmduplextumble.md)
- [kPMSimplexTumble](applicationservices/kpmsimplextumble.md)