DV>   I am running on a Pentium-S 120 with 32 megs EDO-RAM, a
 DV>   Virge-DX (S3) video card, and OS/2 Warp 4. Does this help??
 KK> Yes, a lot. but it means I don't know much about it since
 KK> most of my experience is in DOS and Windows. It may be the
 KK> same, for all I know. Does OS/2 still use the DOS video BIOS
 KK> interrupt 10h stuff? You may also need to get permission to
 KK> even access the video memory, as OS/2 may not want to share.

   Yeah, access rights can cause headaches with pmode stuff, but a 
   well-designed OS should be able to recognize when a protection 
   fault is generated by something like reading/writing video memory, 
   or the interrupt vector table, and take appropriate action.
   
   I might be wrong here, but isn't the video BIOS (save for patches 
   like VESA drivers for non-VESA video cards) in the video card ROM?  
   I don't think it's a DOS thing at all, though it is a PC thing.  He 
   should be able to use the video BIOS to set the mode and such.  I 
   thik the DOS video output routines (along with a lot of the rest of 
   DOS stuff) is accessed through INT 21h.

... "It compiled?  The first screen came up?  Ship it!" -Bill Gates
___ Blue Wave/DOS v2.30 [NR]

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