Progress
Programming
Handbook
Triggers and Frames
User-interface and session triggers can reference frames in the procedure that defines them and can use these frames to display widgets or character strings. In addition, triggers can use default frames to display data (if no frames are named within the trigger), and can name frames that do not exist within the defining procedure.
If a trigger displays data without specifying a frame, the trigger receives a default frame. Each time the trigger executes, Progress creates a new default frame. The trigger does not reuse a frame created during a previous execution.
If the trigger names a frame not named in the defining procedure, the new frame is created when the trigger executes.
Whenever a trigger creates a frame, the frame is local to the trigger and its scope ends when the trigger finishes executing. Each time the trigger executes, a new frame is created.
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