110 RETURN
The first thing that this program does is to branch to the subroutine that starts in line 70. This subroutine prints 80 X’s in a row. The first time that the subroutine is used, all the X’s fit in one line. Then line 30 sets the left margin to 10, and line 40 sets the right margin to 70. Once again the subroutine is used, but this time the X’s won’t all lit on one line since there is now only room for 60 characters between the margins.
Run the program. The results will look like this:
When you want to reset the margins to the default values, you have two choices. You can either turn the printer off and back on, or you can set margin values equal to the default values. This means that you should set a left margin of 0 and a right margin of 80 on
If you change the pitch of your printing after you set your margins, the margins will not change. They stay at the same place on the page. So if you set the margins to give you 65 columns of printing when you are using pica type, and then you change to elite type you will have room for more than 65 columns of elite printing between the margins.
USING | VERTICAL | TABS |
|
Vertical tabs have the same kinds of uses that horizontal tabs | - | ||
| |||
| |||
you to | reach a specific | column on the page no matter where you | - |
start from. Vertical tabs are the same. If you have a vertical tab set at line 20, a <VT > (or vertical tab) will move you to line 20 whether you start from line 5 or line 19.
The vertical tab is not set at the
10 'Demo vertical tabs.
20 LPRINT CHR$(ll) "First tab."
39)LPRINT CHR$(ll) "Second tab."
44)SPRINT CHR$(ll) "Third tab."
50 LPRINT CHR$(ll) "Fourth tab."
-
-
64
