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83
the one-time horizontal tab command.
Try this program to see
how these commands
work.
10
' Demo of
print
positions
20 LPRINT 'I*
1st
Line,
1st
Column"
30 LPRINT
CHR$(27);"fl";CHR$(3);
40 LPRINT 'I* 5th Line,
1st
Column"
50 LPRINT CHR$(27);"fO";CHR$(7);
60 LPRINT I'* 6th Line,
7th Column"
70 LPRINT CHR$(27);"fl";CHR$(2);
80 LPRINT CHR$(27);"fO";Cl%R$(5);
90 LPRINT 'I* 9th Line,
5th Column"
100 END
In this program,
line 30 sends a one-time vertical tab with
(ESC) "f" 1 command.
Line 50 sends a one-time horizontal tab
with (ESC) "f" 0 command.
Finally, line 70 and line 80 send
one-time vertical tab and one-time horizontal tab, so the line 90
prints text at the specified position.
* 1st
Line,
1st
Column.
*
5th
Line,
1st
Column.
*
6th
Line,
7th
Column.
* 9th
Line,
5th
Column.
Table 5-10
Vertical tab commands
Function
Control code
Advance paper to next tab position
CHR$(ll)
Set vertical tabs at nl, n2, etc.
(ESC) "B"
CHR$(nl) CHR$(nZ) . . . . .
CHRW)
Set vertical tabs every n lines
(ESC)
"e" 1 CHR$(n)
One-time vertical tab
(ESC)
"f" 1 CHR$(n)
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