---
title: appRef
framework: coreservices
role: symbol
role_heading: Instance Property
path: coreservices/lslaunchfsrefspec/1448321-appref
---

# appRef

A pointer to a file-system reference designatingthe application to launch; see the File Manager Reference inthe Carbon File Management Documentation for a description of the FSRef datatype. Set this field to NULL torequest that each item in the itemRefs arraybe opened in its own preferred application.

## Declaration

```swift
var appRef: UnsafePointer<FSRef>!
```