[comp.windows.ms] Wanted - Windows Device Driver for Frame Grabber

ben@mlb.dmt.csiro.au (Ben Simons) (12/03/90)

Hi
	I've got a 386 running Windows 3.0 with a Data Translation (DT2862) 
Video Frame Grabber. I've managed to write code to grab frames and play with
the sync and all that sort of I/O port stuff, but i can't actually access
any of the data in the frame buffer because it's located so high in memory
( at 0xa00000 ) and Windows won't let me point to such a physical addr
(as i expect you all know).
	I assume that what i'll need to do then is put together some sort of
device driver (using the device driver development toolkit). 

	My question(s) are:

	1. Do i really need to write a device driver to access the pixels
	   in the frame buffer, or is there another way?

	2. Has someone (out there) already done this? (i hope so!)

	3. Having had a great deal of trouble finding out ANYTHING about
	   the "DD Toolkit", can anyone tell me whether it's worth the
	   money (Australian $620) - I suspect i have no choice but to buy it.

Thanks a lot!
ben.