nortond@lonexb.radc.af.mil (Douglas A. Norton) (02/02/91)
!!!! Could anyone who answers this plea please either email or
use comp.sys.mac.programmer !!!!
Can someone help me? I want to read a gray scale PICT file and use the
resulting bit map from my offscreen. I can do all that up to a certain
point; these two cases are the closest I can get:
1- All the colors are displayed correctly but the intesities are backwards
ie 255-p(x,y)
2- All the colors are displayed correctly and all the numbers but 0&255 are
correct. In this case black is 255 and white is 0
What I want is white(255)..(1)gray(254)..(255)black. I've tried to make
my own off screen device and it works the way I want, that is until I make
a PICT from that bitmap with CopyBits and print that PICT on a LaserWriter
using the 6.0.2 driver. Everything prints correct but black and white are
switched. But if I store that same PICT to a file or clipboard and read it
into another program it displays correctly but when that program prints it
it prints the same as my application.
I hope someone can help me...Thanks
Doug Norton
Rome Laboratory
internet: nortond@lonex.radc.af.mil