Re: altering an NSImage by access to pixels
Re: altering an NSImage by access to pixels
- Subject: Re: altering an NSImage by access to pixels
- From: David Duncan <email@hidden>
- Date: Thu, 18 Aug 2011 16:23:40 -0700
On Aug 18, 2011, at 4:16 PM, James Walker wrote:
> Let's say I have an NSImage that contains some representation other than an NSBitmapImageRep, and I want to play with the pixel values.
Create your NSBitmapImageRep
Create a NSGraphicsContext from that rep and make it current
Draw your NSImageRep using -draw (or -drawAtPoint: or -drawInRect:) to draw into the current graphics context.
You now have an NSBitmapImageRep with your image contents.
--
David Duncan
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