implementation to dispatch incoming user interface events to the framework (and application).
However, you might need to call it if implementing new functionality (such as a new control) where
you define new event types, as opposed to allowing the user to override virtual functions.
An instance where you might actually override the {\bf ProcessEvent} function is where you want
implementation to dispatch incoming user interface events to the framework (and application).
However, you might need to call it if implementing new functionality (such as a new control) where
you define new event types, as opposed to allowing the user to override virtual functions.
An instance where you might actually override the {\bf ProcessEvent} function is where you want