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Re: How to draw a CGImage object to a NSView?
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Re: How to draw a CGImage object to a NSView?


  • Subject: Re: How to draw a CGImage object to a NSView?
  • From: Mike Abdullah <email@hidden>
  • Date: Wed, 20 Feb 2008 15:12:50 +0000

I would go with:

CGContextDrawImage([[NSGraphicsContext currentContext] graphicsPort, aRect, theImage);

[NSGraphicsContext currentContext] will return the right graphics context for drawing into the view.

Mike.

On 20 Feb 2008, at 22:21, 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.

Can anyone give me a suggestion? Thank you very much in advanced.
Good Luck.
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 >How to draw a CGImage object to a NSView? (From: Leopard x86 <email@hidden>)

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