Tandy 1000 MS-DOS Reference Manual page 359

Appendix C / Installable Device Drivers
• Use BASIC's LPRINT statement with the CHR$ func-
tion, as described in the BASIC Reference Manual.
• Make an MS-DOS function call, as described in the
MS-DOS Programmer's Reference Manual.
• Make a BIOS call, as described in the MS-DOS Pro-
grammer's Reference Manual.
Example:
This example uses BASIC to set the number of lines per page to
55:
Iprint chr${27>;chr${67>;chr${SS>
I
ENTER
I
CHR$(27) sends the ESCAPE, CHR$(67) sends the C, and
;- CHR$(55) sends the number of lines.
. !
:-1
,
,
Printer Control Codes
Function Code Result
Set lines per page ESCAPE C;n;
,
.
i
i :
Set horizontal
tabs
ESCAPE D;nI;n2
n3;...
nk;NUL;
Sets the page length to n
lines.
n
is a number in
the range 1-127. Issue
this command before
setting vertical tabs or
form feed.
Sets horizontal tab stops
at nI, n2,
n3
and so on.
The numbers can be in
the range 1-80 in regular
print mode or the range
1-132 in compressed print
mode. When the printer
is turned on, the tab
stops are automatically
set to every eight
columns. Use ESCAPE D
to change them.
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