I usually do that by looking at get-argb-pixels out of a bitmap-dc. If you're getting bad results at that level, that seems especially interesting to try to reduce it to something small.
Robby On Wed, Nov 28, 2012 at 10:44 PM, John Clements <cleme...@brinckerhoff.org> wrote: > > On Nov 28, 2012, at 5:40 PM, Robby Findler wrote: > >> I think the first step to understanding this is to operate at the dc% level. >> That is, make a little program that draws (simpler) shapes, cropped and >> uncropped, via calls directly to the dc object and see if you can find a >> minimalist program. Well, that's how I tackle these problems, generally. > > One question about this: how do I examine the dc% to see what's in it? It > seems that 'get-pixel' doesn't actually produce the correct values.... > > John > ____________________ Racket Users list: http://lists.racket-lang.org/users
