---
title: argv
framework: coreservices
role: symbol
role_heading: Instance Property
path: coreservices/lsapplicationparameters/1445515-argv
---

# argv

An array of values of type CFString that specify the arguments that are to be passed to main() in the launched process. The value of this field can be NULL. This field is ignored in macOS 10.4.

## Declaration

```swift
var argv: Unmanaged<CFArray>!
```