You can store up to eight channels of tab stops, numbered from 0 to
7. You use a format that is similar to the one for a single set:
CHR$(27)"b"CHR$(N)CHRR$(n
1
) . . . CHR$(n
k
)CHR$(0)
where N stands for a reference number between zero and seven under
which this channel will be stored. If you have already stored a set
using ESCape “B”, the FX has labelled it as channel 0.
If your system won’t send lowercase letters, substitute CHR$(98)
for the “b”. As for ESCape “B”, you can store up to 16 stops, and you
can use numbers between 1 and 254. You use either 0 or a number
smaller than n
k
to terminate the setting process.
Because the channels are stored, you must make the printer recall
one before you can use it. You use this format:
CHR$(27)"/"CHR$(n)
where n stands for the number of the channel (0 - 7). After you have
used this format, you perform tabbing by using CHR$(11) as usual.
Of the two reasons we mentioned for using channels, the program-
ming of a multipage report form is the simpler. The program shown
demonstrates the way you could set up an outline to be filled in by
someone else or at a later date. Figure 9-13 shows the printout of that
program.
NEW
10 LPRINT CHR$(27)"b"CHR$(1)CHR$(15)CHR$(40)CHR$(1);
20 ' SET TABS AT 15,40 FOR CHANNEL #1
20 LPRINT CHR$(27)"b"CHR$(2)CHR$(25)CHR$(30)CHR$(1);
40
' SET TABS FOR CHANNEL #2
A
T 25,30
50
LPRINT CHR$(27)"b"CHR$(3)CHR$(30)CHR$(45)CHR$(1);
60
' SET TABS FOR CHANNEL
#3
AT 30,45
100 ' ****** START OF MAIN PROGRAM ******
110 FOR Z=1 TO
3
: READ X
120 LPRINT "TOP OF PAGE"
130 LPRINT CHR$(27)"/"CHR$(X);
140
' SET CURRENT CHANNEL "PAGE"
150 LPRINT CHR$(11)"TAB #1 FOR CHANNEL"X
160 LPRINT CHR$(11)"TAB #2 FOR CHANNEL"X
170 LPRINT CHR$(140);
180 NEXT Z
190
DATA
1,2,3
2000 LPRINT CHR$(27)"@"
10000
END
127
