---
title: "init(processIdentifier:)"
framework: Scripting Bridge
role: symbol
role_heading: Initializer
platforms: [Mac Catalyst 13.0+, macOS 10.5+]
path: "scriptingbridge/sbapplication/init(processidentifier:)"
---

# init(processIdentifier:)

Returns an instance of an SBApplication subclass that represents the target application identified by the given process identifier.

## Declaration

```swift
init?(processIdentifier pid: pid_t)
```

## Parameters

- `pid`: A BSD process ID specifying an application that is OSA-compliant. Often you can get the process ID of a process using the doc://com.apple.documentation/documentation/Foundation/Process/processIdentifier method of NSTask.

## Return Value

Return Value An initialized SBApplication that you can use to communicate with the target application specified by the process ID. Returns nil if no such application can be found or if the application does not have a scripting interface.

## Discussion

Discussion You should avoid using this method unless you know nothing about an external application but its PID. In most cases, it is better to use init(bundleIdentifier:), which will dynamically locate the external application’s path at runtime, or init(url:), which is not dependent on the external application being open at the time the method is called.

## See Also

### Initializing a Scriptable Application Object

- [init(bundleIdentifier:)](scriptingbridge/sbapplication/init(bundleidentifier:).md)
- [init(url:)](scriptingbridge/sbapplication/init(url:)-6xbe5.md)