Apple IIe - Page 164

I'
164 Apple lie Users Handbook
Configuration
VLIN row 1, row 2 AT column
A vertical line will be drawn at the specified column from row 1
to row 2. The color of the line will be determined by that
specified in the last COLOR statement executed .
row 1 and row 2 must be in the range of 0 to 47. column must lie
in the range 0 to 79. If a value outside of these ranges is used, the
following error message will be displayed:
ILLEGAL
QUANTITY ERROR
If VLI N is executed in the text mode , then a line of characters will
be displayed rather than a line of graphics dots . This also occurs
in the text window in the GR mode.
VTAB
Example
10 GR
12 COLOR= 3
15 FOR I = 1 TO 20
20
VLIN10,30ATI
25 NEXT I
30 END
•
Applesoft
• Integer
VT AB moves the cursor to the indicated row on the screen. VT AB
causes
the cursor to move up and down but never sideways.
Configuration
VTAB row
row
can range from 1 to 24. A row value outside of that range