Re: How to draw a CGImage object to a NSView?
Re: How to draw a CGImage object to a NSView?
- Subject: Re: How to draw a CGImage object to a NSView?
- From: David Duncan <email@hidden>
- Date: Wed, 20 Feb 2008 10:24:24 -0800
On Feb 20, 2008, at 2:21 PM, Leopard x86 wrote:
Hi everyone.
After reading the Quartz Graphics programming document, I am still
trying to find a method to draw a CGImageRef object "directly" to a
NSView / NSOpenGLView ...
My application decodes some files on the disk to into
CGDataProvider, then uses the CGDataProviders to create CGImageRefs.
I think it will cost too much performance to convert the CGImage
objects to other formats, e.g. NSImage, CIImage. So I am wondering a
direct way to draw CGImage to a NSView or NSOpenGLView.
CGContextRef context = (CGContextRef)[[NSGraphicsContext
currentContext] graphicsPort];
Then see the Quartz docs for how to draw an image.
--
David Duncan
Apple DTS Animation and Printing
email@hidden
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