---
title: CMIOExtensionClient
framework: coremediaio
role: symbol
role_heading: Class
path: coremediaio/cmioextensionclient
---

# CMIOExtensionClient

An object that represents a client of the extension.

## Declaration

```swift
class CMIOExtensionClient
```

## Topics

### Identifying a Client

- [clientID](coremediaio/cmioextensionclient/clientid.md)
- [pid](coremediaio/cmioextensionclient/pid.md)

### Instance Properties

- [signingID](coremediaio/cmioextensionclient/signingid.md)

## Relationships

### Inherits From

- [NSObject](objectivec/nsobject-swift.class.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSCopying](foundation/nscopying.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Streams

- [CMIOExtensionStream](coremediaio/cmioextensionstream.md)
- [CMIOExtensionStreamSource](coremediaio/cmioextensionstreamsource.md)
- [CMIOExtensionStreamProperties](coremediaio/cmioextensionstreamproperties.md)