# Structure

**RadCallout** is a component which internally has a **RadCalloutForm** that hosts the **AssociatedControl**.

![WinForms RadCallout Structure](https://www.telerik.com/products/winforms/documentation/assets/d491de6f80ad8576f25fb1ac8d30e056/callout-structure001.png)

The **AssociatedControl** can be any **Control** or a Control derivative.

## See Also

* [Getting Started](https://www.telerik.com/products/winforms/documentation/controls/callout/getting-started)

* [Design Time](https://www.telerik.com/products/winforms/documentation/controls/callout/design-time)