Actions and Callbacks

Actions and Callbacks

A user interface must react to user input such as clicks or keystrokes. Because a particular input can affect both the interface and the application, reactions may be of two kinds. Actions occur inside Motif to control the interface. Callbacks occur in an application to register user input. Each widget class may define a set of actions and callbacks.

The section "Actions and Translations" deals with actions and translations. The section "Callbacks" discusses callbacks. The section "Base Classes" presents the set of actions and callbacks common to many moat widgets.