IRC5 TPErase Not Allowed in UNDO Handler

  • RW 6.12.00

    I was adding some extra text to my routines and added the TPErase instruction in my UNDO handlers so I would always have a blank screen in case I aborted. Whenever this instruction is used in an UNDO handler though, it generates a run-time error and says that the instruction is not allowed. The section of the Rapid overview manual on UNDO handlers specifies that the program pointer can not stop, so I understand why some instructions like WaitUntil can't be used, but I'm curious as to why I can't use TPErase.

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