Final answer:
Yes, a control can define a handler for an event it cannot raise itself, allowing it to respond to events triggered by other parts of the application.
Step-by-step explanation:
In the context of event-driven programming, particularly in GUI (Graphical User Interface) frameworks, a control can indeed define a handler for an event that it does not itself raise. This is because events in software are often designed to be observable by any interested subscribers, independent of where they are raised. The control in question can listen for events triggered by other parts of the application or even other controls, and provide a response through the defined event handler. For instance, a button control might not raise a scrolling event but can still have a handler that responds to the scroll event of a scrollbar control.