The following are the events associated with Screen Programming -
Process Before Output (PBO) : This event gets processed long before displaying the screen.
Process After Input (PAI) : This event is processed while the interaction of a user with the screen continues.
Process On Help (POH) : This even gets process on request by a user after pressing F1. The program gets appropriately coded in various event blocks. The present screen gets processed by the system.
Process On Value (POV) : This gets processed by pressing F4 by users. Here also, the coding can be done in the various event blocks.
