# UITimer.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 UITimer.ICallback : Widget.ICallback
```

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

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

## Methods

- [OnElapsed](https://eto.picoe.ca/api/type/eto.forms.uitimer.icallback/onelapsed.md): Raises the elapsed event.