home *** CD-ROM | disk | FTP | other *** search
GW-BASIC | 1984-11-23 | 512 b | 13 lines |
- 1 'Test of graphics monitor consisting of a box at the screen limits
- 2 'and two other lines to assist in centering, checking pincushion and
- 3 'checking for a level image. You must switch to a graphic display
- 4 'before entering. Press any key to exit.
- 5 'John L. Dickinson, Tucson, 7-29-82
- 6 '
- 10 SCREEN 2,0:WIDTH 80:KEY OFF:CLS
- 20 LINE (0,0)-(639,199),,B
- 22 LINE (320,0)-(320,199)
- 30 LINE (0,100)-(639,100)
- 40 A$=INKEY$:IF A$=""THEN GOTO 40
- 50 CLS
-