November 19th, 1999, 04:08 PM
Hi there,
I'm trying to write an application that gets a bitmap from a scanner, then saves the image. The scanning works fine, problem is, I only want a monochrome image but the TWAIN package is returning a 24 bpp bitmap (albiet in the black & white I requested, yippie).
Does anyone know how I can take this 24 bpp bitmap and make it monochrome?
I know it sounds simple but I've been pulling my hair out. I suspect there's a way to use the BitBlt API call or something similar, but I haven't used these before.
Anyone's help is greatly appreciated, even if it's just a link to some documentation..
Thanks again,
Mike
I'm trying to write an application that gets a bitmap from a scanner, then saves the image. The scanning works fine, problem is, I only want a monochrome image but the TWAIN package is returning a 24 bpp bitmap (albiet in the black & white I requested, yippie).
Does anyone know how I can take this 24 bpp bitmap and make it monochrome?
I know it sounds simple but I've been pulling my hair out. I suspect there's a way to use the BitBlt API call or something similar, but I haven't used these before.
Anyone's help is greatly appreciated, even if it's just a link to some documentation..
Thanks again,
Mike