I've been having a problem saving a document in TIFF G4. The result,
sometimes, is a negative image (i.e. white on black instead of black on

I already found a thread here regarding the subject dated 16 Mar 2005 14
.. It says how to negate the bits of the bitmap using LockBits(), however
it assumes the problem will occur.

My problem is more general, I need to take an image and save it as TIFF
G4. I need to find out if there is a problem and if there is then solve it.
1. Image might be more than one bit per pixel.
2. The pallet might be right.
3. GDI+ encoder might be fixed.

Any ideas of a general way to solve the problem?
Thanks, Reuven