Re: Changing the background of a 1 bit bitmap?
Re: Changing the background of a 1 bit bitmap?
- Subject: Re: Changing the background of a 1 bit bitmap?
- From: "R. Scott Thompson" <email@hidden>
- Date: Mon, 4 Oct 2004 12:39:23 -0500
On Oct 4, 2004, at 11:25 AM, Glen Simmons wrote:
I'm creating an NSImage from some 1 bit bitmap data using the
-[NSBitmapImageRep initWithBitmapDataPlanes:pixelsWide: ...] method
passing NSCalibratedBlackColorSpace so that 1 bits become black pixels
and 0 bits become white pixels. I'd like the 0 bits to become a color
of my choice instead of white. Is there an easy way to do this?
What you want is a different Compositing operation
(NSCompositeSourceOver I think). There doesn't appear to be a way to
do that with an NSImageView. Perhaps you could create a custom view
and use NSImage calls yourself?
Scott
--
Macintosh Software Engineering Consulting Services
Visit my resume at <
http://homepage.mac.com/easco/RSTResume.html>
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