Events are sent by the player objects to the application through a unique event handle. The get_event_handle method returns the event handle unique to that object. When programming with the AIXwindows Toolkit, applications can use this event handle as a file descriptor to select events within the main loop of the toolkit. The XtAppAddInput toolkit function can be used to register this event handle as another source of file input.
For introductory information, see Programming with Media Handler Objects.