Q35830: No Support for Color Hercules Graphics Adapters in QuickBASIC

Article: Q35830
Product(s): See article
Version(s): 4.00 4.00b 4.50
Operating System(s): MS-DOS
Keyword(s): ENDUSER | SR# G880920-3454 B_BasicCom | mspl13_basic
Last Modified: 12-DEC-1989

The Hercules graphics driver in QuickBASIC only supports monochrome
graphics (720 X 348 pixel resolution). Hercules color cards are not
supported and have not been tested with QuickBASIC; therefore, the
color cards may or may not work. For displaying color, QuickBASIC
supports IBM CGA, EGA, and VGA graphic adapters.

This information applies to Microsoft QuickBASIC Versions 4.00, 4.00b
and 4.50, the version of QuickBASIC that comes with Microsoft BASIC
Compiler Versions 6.00 and 6.00b for MS-DOS and MS OS/2, and Microsoft
BASIC PDS Version 7.00 for MS-DOS and MS OS/2.

Microsoft has received reports that QB.EXE will hang on a computer
with a Hercules color card installed. However, Microsoft has not
tested or verified this since QuickBASIC does not officially support
Hercules color cards.