2003.07.11 23:29 "Re: grey scale conversion", by Scott Weber
Just a guess here but...
I think the Kodak image control uses DirectX, so it can map directly to the screen memory. I have played with similar problems.
If your interested, I'll send you my C++ class which I use to unpack and display TIFFs. It's uses StretchBLT. It's used inside an simple MFC program.
I don't want to inundate the list with OS specific code...