DEF VAR lcc AS LONGCHAR.
DEF VAR cc AS CHAR.
OUTPUT TO "lf.txt" BINARY.
PUT UNFORMATTED "a~nb".
OUTPUT CLOSE.
COPY-LOB FROM FILE "lf.txt" TO lcc.
cc = lcc.
MESSAGE
ASC( SUBSTRING( cc, 1, 1 ) ) SKIP
ASC( SUBSTRING( cc, 2, 1 ) ) SKIP
ASC( SUBSTRING( cc, 3, 1 ) ) SKIP
ASC( SUBSTRING( cc, 4, 1 ) ) SKIP
ASC( SUBSTRING( cc, 5, 1 ) ) SKIP
VIEW-AS ALERT-BOX.