ralex@cs.Colorado.EDU (Repenning Alexander) (03/22/91)
I' using put-image to draw variable sized icons into windows. This works just fine. However, I also like to be able draw the icons in reverse mode. My naive approach was to set the function of the graphicc context supplied to the put-image function to boole-c1. Instead of giving me the reversed icon it gives me a completely black one. I also tried all variations for function (0..15) but none of the results is gives my aa reversed icon. Do I have to tweak foreground and background of the graphic context somehow, or would it be better to use some other function than put-image? Any suggestions? Help... thanks, Alex