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
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$(0)) | where: | |||||
ESC “D” | = | load HT table |
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CHR$(n) | = | decimal | numbers (1 | to | 216) | indicating tab |
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| stops | at designated | character | column number. | |
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| (See “Hard Copy Considerations” in this chapter.) | ||||
CHR$(0) | = | load HT terminator |
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or CHR$(128) |
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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
Programming |
