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RTL Routines, SMG$, SMG$REMOVE_LINE
 *Conan The Librarian 

    The Remove a Line from a Virtual Display routine removes a
    line from a specified virtual display that was drawn with the
    SMG$DRAW_LINE or SMG$DRAW_RECTANGLE routines.

    Format

      SMG$REMOVE_LINE  display-id ,start-row ,start-column ,end-row

                       ,end-column

  Additional Information (explode) :

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