Event Point Definition and Description
Event points are defined to correspond to the nature of a process or process component. For example, an image has a Pre-Display event point, while a frame has a corresponding Start of Frame event point. Input processes also have a Post PCF Update event point, although a menu process does not because a menu does not update a process control file. As a result, while each process type/component has a unique set of event points, there is a consistent pattern throughout the system.
Another item to note is that some event points may not occur in certain instances, depending on what you specified the process to do. For example, a frame may or may not have an image associated with it. If the frame produces an image, it has a Pre-Display event point; if no image is produced, the Pre-Display event point is not available. As a result, the applicable set of event points for a process is dependent upon the context in which you specify it.
Refer to Using Event Points for details on event point timing and usage. |