Download the documentation - True BASIC

Making Graphs 21
Available Line Styles
Line styles are numbered from 1 to 4. You may also use style 0, which means that no
line should be drawn. The visible styles are:
Style Appearance
1 solid
2 dashed
3 dotted
4 dash-dotted
AskMaxPointStyle (n)
AskMaxPointStyle returns the maximum number of point styles currently supported
by the Statistics Graphics Toolkit. At present, this number is 13. See the previous sections
in this section for more information.
If more point styles are added to later versions of the Toolkit, this routine will return a
larger number.
AskMaxLineStyle (n)
AskMaxLineStyle returns the maximum number of line styles currently supported by
the Statistics Graphics Toolkit. At present, this number is 4. See the previous sections
in this section for more information.
If more line styles are added to later versions of the Toolkit, this routine will return a
larger number.
Printing A Graph
Every computer has a different way to print its screen on a printer. Usually you must
press some combination of keys on the keyboard, and the computer then takes a snapshot
of the screen onto the printer. See your True BASIC User’s Guide to find out how
to do this on your computer.
You can also take a snapshot from within a program. Just add library “prtlib” to your
program. Then call PrtSc whenever you want to print the screen image.
———————————————————————————————————————
x NOTE: Many computers require some kind of special preparation
before you can print a picture on your printer.
———————————————————————————————————————
01/01