When any operation is requested for a monitor by invoking a command or by taking an option from a user interface, if an interface exit program exists it is called as a pre-call to the operation. If the program is successful the requested operation on the monitor is processed. If the operation is successful, the interface exit program is called as a post-call to perform any additional user-specified processing. The following figure shows this operation.
Figure 1. Interaction with interface exit program.
Working with monitors describes the operations that you can perform on monitors.
Programming for monitors describes the programming requirements for the condition, event, and interface exit programs identified in a monitor.