---
title: containingBundleName
framework: videotoolbox
role: symbol
role_heading: Type Property
path: videotoolbox/vtextensionpropertieskey/containingbundlename
---

# containingBundleName

A dictionary key for the extension host application localized name.

## Declaration

```swift
static let containingBundleName: VTExtensionPropertiesKey
```

## Discussion

Discussion This key points to a CFStringRef value with the localized name of the application hosting the extension.

## See Also

### Keys

- [containingBundleURL](videotoolbox/vtextensionpropertieskey/containingbundleurl.md)
- [extensionIdentifier](videotoolbox/vtextensionpropertieskey/extensionidentifier.md)
- [extensionName](videotoolbox/vtextensionpropertieskey/extensionname.md)
- [extensionURL](videotoolbox/vtextensionpropertieskey/extensionurl.md)