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# WebContentProcess

A process that manages webpage content in an app extension.

```
struct WebContentProcess
```

## Overview

A browser app can launch multiple web content extension processes. Each instance of this structure represents a separate process.

## Topics

### Creating and invalidating extension processes

[`init(bundleIdentifier: String?, onInterruption: () -> Void) async throws`](/documentation/BrowserEngineKit/WebContentProcess/init(bundleIdentifier:onInterruption:))

Launches a web content process asynchronously.

[`func invalidate()`](/documentation/BrowserEngineKit/WebContentProcess/invalidate())

Stops the web content process.

### Creating XPC connections

[`func makeLibXPCConnection() throws -> xpc_connection_t`](/documentation/BrowserEngineKit/WebContentProcess/makeLibXPCConnection())

Creates a new XPC connection to the extension process.

### Coordinating processes

[`func grantCapability(ProcessCapability) throws -> ProcessCapability.Grant`](/documentation/BrowserEngineKit/WebContentProcess/grantCapability(_:))

Grants the specified capability to the process.

[`func grantCapability(ProcessCapability, invalidationHandler: () -> Void) throws -> ProcessCapability.Grant`](/documentation/BrowserEngineKit/WebContentProcess/grantCapability(_:invalidationHandler:))

Grants the specified capability to the process and observes an invalidation closure.

[`func createVisibilityPropagationInteraction() -> any UIInteraction`](/documentation/BrowserEngineKit/WebContentProcess/createVisibilityPropagationInteraction())

Returns an interaction that associates a view with the web content process.


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