All GLAM related terms can be found in this glossary.
See User Events.
The GLAM toolkit is an OpenGL-based cross platform user interface toolkit for creating 2D or 3D user interfaces. Its main purpose is to provide the underlying framework for a user interface, leaving the application specific look, feel and behavior to the developer's discretion.
User events describe the user's interaction with an application involving input devices such as mouse and keyboard.
See Also Widget Actions & Listeners.
Widget Actions and Listeners make communication between widgets and other components of an application (generally other widgets) possible. Widget actions represent the actions that widgets perform in response to user events. After a widget has handled a user event, it generates an action and passes it to all of its listeners to notify them of what has transpired.