---
title: machPort
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/nsmachport/machport
---

# machPort

The Mach port used by the receiver, represented as an integer.

## Declaration

```swift
var machPort: UInt32 { get }
```

## Discussion

Discussion The Mach port used by the receiver. Cast this value to a mach_port_t when using it with Mach system calls.