---
title: FxCommandHandler
framework: Professional Video Applications
role: symbol
role_heading: Protocol
platforms: [fxplug 4.1+]
path: professional_video_applications/fxcommandhandler
---

# FxCommandHandler

Defines the methods a plug-in must implement to be notified of the application’s key binding for common commands.

## Declaration

```swift
protocol FxCommandHandler
```

## Topics

### Instance Method

- [setHostKeyCommands(_:)](professional_video_applications/fxcommandhandler/sethostkeycommands(_:).md)

## See Also

### Handling and Defining Commands

- [FxCommand](professional_video_applications/fxcommand.md)