Table of Contents
Advertisement
Horizontal Tab
Horizontal tabs enable you to put text at a precise column in a print line. Up
to 28 stops may be set at a time, spanning character columns 1–216.
Loading a Horizontal Tab Table
You may design and load your own horizontal tab table and tab the print
head with CHR$ (9), the decimal value of ASCII control character HT. To
make use of the custom Horizontal Tab feature you must first load a tab table
and then make calls to the table with CHR$ (9).
The proper syntax for loading the tab table is:
LPRINT ESC "D"CHR$(N2);..CHR$(128) (or CHR$(0)) where:
or CHR$(128)
NOTE: CHR$(0) and CHR$(128) are not allowed as tab stops.
Calling a Horizontal Tab Table
After the horizontal tab table has been loaded, you may use the table by
sending CHR$ (9) to call each tab.
Example: LPRINT...DATA...CHR$ (9)DATA
7–36
ESC "D"
= load HT table
CHR$(n)
= decimal
stops
(See "Hard Copy Considerations" in this chapter.)
CHR$(0)
= load HT terminator
numbers
(1
to
at
designated
character
216)
indicating
tab
column
number.
Programming
Advertisement
Table of Contents
