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66
Table 6-7
One-time
horzontal
tabs
Function
Control
cde
One-time horizontal tab of n spaces
(ESC) "f" 0 CHR$(n)
Absolute horizontal tab
(ESC) "$" CHR$(nl) CHR$(nZ)
Relative horizontal tab
(ESC) "\" CHR$(nl) CHR$(nZ:
The first command
in Table 6-7 moves the print head n col-
umns to the right. It has the same effect as sending n spaces to
the printer.
-
The absolute horizontal tab command moves the print head to
a specified position on the page. The position that you want the
-
print head to move to (measured
from the left margin)
is
specified by the values of nl and nZ in l/60-inch units using the
formula nl + n2
X
256.
Try this program to see how this works.
10 ' Demo of absolute
horizontal
tabs
20 FOR I=60 TO 70 STEP 2
30 LPRINT I ; "+++tt" ;
40 LPRINT CHR$(27);"$";CHR$(I);CHR$(O);
50 LPRINT "Horizontal
tab."
60 NEXT I
70 END
In this program, the print head is positioned before the "H" in
"Horizontal"
is printed.
60 +++++
Horizontal
tab.
62 +++++
Horizontal
tab.
64 +++++
Horizontal
tab.
66 +++++
Horizontal
tab.
68
+++++
Horizontal
tab.
70
+++++
Horizontal
tab.
The relative horizontal tab command can move the print head
right from the current position. The formula for calculating how
much the print head moves is the same as in the absolute
horizontal tab command. However, the units by which the print
head actually moves vary with the print style you are using.
Table 6-8 shows the various options.
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