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  Routine:      CBL_GET_SCR_SIZE
 
  Function:     Returns information on the size of the screen.
 
  Syntax:       CALL "CBL_GET_SCR_SIZE" USING     depth
                                                  width
                                        RETURNING status-code
 
  Parameters:   depth                  PIC X COMP-X.
                width                  PIC X COMP-X.
                status-code            See ◄Key►
                                    -♦-