Global Pre-Display
The Global Pre-Display event point executes immediately before the actual appearance of the selected alternate image to a user. It executes only for input and output processes, and only if the frame includes an image. If the frame is a repeating frame, this event point executes once for each repetition. It also executes once for each entry level (up to nine) in the data addition interactive phase.
Global Pre-Display executes after the image-level event points Pre-Display and Pre-Display/Verify.
After this event point executes, APPX reinterrogates the OPTION predefined field to determine whether or not the content of the field was set with statements. If so, APPX responds as if the user had selected this option.
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