[comp.sys.mac.programmer] When does DrawPict gray-scale a bitmap picture ?

d88-jwa@nada.kth.se (Jon W{tte) (04/09/90)

I have a collection of bitmap PICTs that I have obtained by
capturing a part of a window. The problem is; some of these
are automagically grayscaled when reduced, and some are just
shrunk old-style, keeping all the black bits. What Criterium
is  there for DrawPicture (or CopyBits) to gray-scale one of
these pictures ? IM V isn't talking, and trial-and-error made
me so frustrated I wrote my own BW2gray filtering program
(a simple 3x3 filter - not fast, but it works)

Thanx in advance,
							h+

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