C VTSERV.INC - VT 100 terminal services codes INTEGER off attributes , bold , underline , reverse INTEGER erase screen, position, double, single PARAMETER ( off attributes = 0 ) PARAMETER ( bold = 1 ) PARAMETER ( underline = 4 ) PARAMETER ( reverse = 7 ) PARAMETER ( erase screen = 10 ) PARAMETER ( position = 11 ) PARAMETER ( double = 12 ) PARAMETER ( single = 13 )