# RhinoApp.KeyboardHookEvent delegate

Namespace: [Rhino](https://developer.rhino3d.com/api/rhinocommon/namespace/rhino.md) · Assembly: [RhinoCommon](https://developer.rhino3d.com/api/rhinocommon/assembly/rhinocommon.md)

```cs
public delegate RhinoApp.KeyboardHookEvent
```

KeyboardEvent delegate

**Signature:**

```cs
void RhinoApp.KeyboardHookEvent(int key)
```

**Parameters:**

- `key` ([int](https://learn.microsoft.com/dotnet/api/system.int32))