A PUSH-BUTTON control is a region of the screen that the user can push (click or select) to cause something to happen. Under most graphical systems, push buttons appear to be raised up from the surface of the screen. Push buttons don't have values. Instead, they generate events whenever they are pushed. To simplify programming, you can assign termination or exception values to push buttons so that they act like function keys or other terminating keys when used. You can find information on how this works in the STYLES and PROPERTIES sections that follow for information on how this works.