Vertical Tab Stops - TallyGenicom Matrix Printer Programmer's Manual

Vertical Tab Stops

Data Structure
ASCII
hex.
dec.
ASCII
hex.
dec.
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Description By means of this code sequence a maximum of 16 vertical tab stops can be set.
For example,
CHR$(27);"B";CHR$(1);CHR$(11);CHR$(21);CHR$(0);
sets vertical tab stops at lines 1, 11 and 21, line 1 being the first line of the page.
Tab stops are set in those positions which are specified by character codes following
ESC B. These character codes must be arranged in ascending order.
The length of this code sequence varies according to the number of tab stops being
set. Code <NUL> (hex. 00) is used as a terminator to signal the end of the data string.
If any character code with a smaller numeric value than the preceding is among those
codes, the code with the smaller value is ignored. Vertical tab stops set by this
sequence remain effective until code sequence ESC B is received again or form
length is changed by ESC C.
A vertical tabulation is executed by the VT control code (hex.0B, dec.11).
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This code sequence cancels all previous tab stops.
For example,
CHR$(27);"B";CHR$(0)
clears all vertical tab stops.
ESC "B" <n >...<n > NUL
1 16
1B 42 <n >...<n > 00
1 16
27 66 <n >...<n > 0
1 16
ESC "B" NUL
1B 42 00
27 66 0
set vertical tab stops
reset all vertical tab stops
Print Positioning
ESC B
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