Working on "DOS" VGA.

Chris Robinson chris.kcat at
Sun Apr 4 06:03:47 CDT 2010

On Sunday 04 April 2010 3:41:00 am Marcus Meissner wrote:
> Yes, but those INT21 calls are in Win16 protected mode, not DOS real mode.
> And VXD ... I doubt anything uses it.

Back in the Win95 era, I remember libnet having a DOS network driver that 
hooked into winsock.vxd. It allowed a DOS app (compiled with DJGPP) to use 
Windows' winsock driver when run under Windows. I remember that because I 
thought it was the best thing ever, since I only had DJGPP and wasn't 
interested in Win32 programming (and even if I could, I don't think MinGW was 
around, yet).

But beyond that, couldn't a pure DOS app launch a Win32 exe, and have that 
program run like a normal Windows app? How would that work if the app is run 
under DOSBox or similar?

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