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Re: Weird Problem With CGImage
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Re: Weird Problem With CGImage


  • Subject: Re: Weird Problem With CGImage
  • From: Michael Vannorsdel <email@hidden>
  • Date: Fri, 25 Apr 2008 12:16:50 -0600

Could it be the CGImage references a compressed image format rather than a bitmap?


On Apr 25, 2008, at 8:51 AM, Carter R. Harrison wrote:

What is killing me here is that the CGImage has dimensions 417x234 and 1668 bytes per row. That to me means that the CFDataRef that I am obtaining should be 390,312 bytes (234 x 1668). But the CFDataRef is only 6,672 bytes which is nowhere close to what I think I should be getting. So I must be doing something wrong in trying to get the bitmap data, but I'm not sure what else to do and I even found some Apple docs with an example doing the exact same thing that I am doing. Can anybody provide some insight on this? Thanks everybody.

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References: 
 >Weird Problem With CGImage (From: "Carter R. Harrison" <email@hidden>)

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