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# UIApplication.OpenURLOptionsKey

Keys you use to access values in the options dictionary when opening a URL.

```
struct OpenURLOptionsKey
```

## Overview

Use these keys to retrieve options in the [`application(_:open:options:)`](/documentation/UIKit/UIApplicationDelegate/application(_:open:options:)) method of your app delegate.

## Topics

### Accessing open-URL options

[`sourceApplication`](/documentation/UIKit/UIApplication/OpenURLOptionsKey/sourceApplication)

A key containing the bundle ID of the app that sent the open-URL request to your app.

[`annotation`](/documentation/UIKit/UIApplication/OpenURLOptionsKey/annotation)

A key containing the information passed to a document interaction controller object’s annotation property.

[`openInPlace`](/documentation/UIKit/UIApplication/OpenURLOptionsKey/openInPlace)

A key containing a flag that indicates whether a document must be copied before you use it.

[`eventAttribution`](/documentation/UIKit/UIApplication/OpenURLOptionsKey/eventAttribution)

An options key for `application(_:open:options:)`. The value is a `UIEventAttribution` to go along with the URL to open.

### Creating an open-URL options key

[`init(rawValue:)`](/documentation/UIKit/UIApplication/OpenURLOptionsKey/init(rawValue:))

Creates a URL-opening options key with the specified raw value.


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