# TrayIndicator.ICallback interface

Namespace: [Eto.Forms](https://eto.picoe.ca/api/namespace/eto.forms.md) · Assembly: [Eto](https://eto.picoe.ca/api/assembly/eto.md)

```cs
public interface TrayIndicator.ICallback : Widget.ICallback
```

Callback interface for [TrayIndicator](https://eto.picoe.ca/api/type/eto.forms.trayindicator.md)

**Derived types:** [TrayIndicator.Callback](https://eto.picoe.ca/api/type/eto.forms.trayindicator.callback.md)

## Methods

- [OnActivated](https://eto.picoe.ca/api/type/eto.forms.trayindicator.icallback/onactivated.md): Raises activated event.