The controls that come with the component library inherit events for the most common occurrences. These are called the standard events. Although all these events are built into the controls, they are often protected, meaning developers cannot attach handlers to them. When you create a control, you can choose to make events visible to users of your control. 

There are three things you need to consider when incorporating the standard events into your controls:

• Identifying standard events
• Making events visible
• Changing the standard event handling