Un piccolo estratto da un articolo molto interessante ad opera di Morten Nielsen...
"For some reason Microsoft made it pretty hard to work with anything but
24bit images. This is even though they provide you with several pixel formats,
but no way of setting and getting the values of a pixel. If you use the
SetPixel(x,y) or GetPixel(x,y) methods, your application will fail. There are
plenty of articles and blogs on the Internet on how to do direct access on 1bit
and 24bit, but I wasn't able to find anything on 8bit."
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