Q27925: EGA and VGA Graphics Are Not Supported in OS/2 Protected Mode

Article: Q27925
Product(s): See article
Version(s): 6.00 6.00b 7.00
Operating System(s): OS/2
Keyword(s): ENDUSER | | mspl13_basic
Last Modified: 31-JAN-1990

EGA and VGA graphics are not supported in Microsoft BASIC Compiler
Versions 6.00 and 6.00b and Microsoft BASIC Professional Development
System (PDS) Version 7.00 programs in the protected mode of OS/2.
(Note also that COLOR is ignored in SCREEN 1.)

The BASIC compiler talks directly to the hardware to perform EGA or
VGA graphics. Applications that sit in OS/2 "ring 4" are not allowed
to perform EGA or VGA graphics in the protected mode of OS/2.

If the application needs to talk to the hardware, it must go through a
device driver. There is currently not a device driver for EGA or VGA
graphics in OS/2 protected mode.

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