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Line Spacing and Forms Control
47
mand does not change the setting of the line spacing, but it does
cause the printer to make one line feed of n/144 inch. Try this
program to see how it works:
NEW
18 LPRINT "LINE NUMBER 1"
2g LPRINT "LINE NUMBER 2";
3pI LPRINT CHR$(27) "J" CHR$(l@d);
4pI LPRINT "LINE NUMBER 3”
5p LPRINT "LINE NUMBER 4”
Here is what Delta will produce:
LINE NUMBER 1
LINE NUMbER 2
LINE NUMBER 3
LINE NUMBER 4
The (ESC) “J” CHR$(lOO) in line 30 changes the line spacing
to 1001144 for one line only. The rest of the lines are printed with
the normal line spacing. Notice that both line 20 and line 30 end
with semicolons. This prevents the normal line feed from occur-
ring.
The value of n in all three commands (( ESC) “A”, (ESC) “3”,
and (ESC) “J”) can range from 0 to 255. A value of 0 means that
there is no line spacing. This allows you to print multiple lines in
the same position on the page. This is useful when you want to
overprint graphics and text.
Moving down the page without a carriage return
So far, all the commands that move the paper also move the
print head to the left margin. And normally this is what you want.
Sometimes, though, you may wish to move down the page with-
out moving the printhead back to the left margin. The (ESC) ‘&a”
CHR$(n) command does just that. This command advances the