Re: Cross-SDK CGImageCreate
Re: Cross-SDK CGImageCreate
- Subject: Re: Cross-SDK CGImageCreate
- From: Eric Albert <email@hidden>
- Date: Fri, 7 Oct 2005 18:20:56 -0400
On Oct 7, 2005, at 5:08 PM, David Dunham wrote:
If I want my code to run on Intel, I need to use
kCGBitmapByteOrder32Host. This constant doesn't exist prior to
10.4, and I need to run on 10.2. So my first thought was simply to
define it.
But that doesn't work, since the argument of CGImageCreate has
changed in 10.4 -- it used to be CGImageAlphaInfo, and is now
CGBitmapInfo.
Short of #ifdefing the CGImageCreate all, how can I get my
| kCGBitmapByteOrder32Host
to work on pre-10.4 SDKs?
Both CGImageAlphaInfo and CGBitmapInfo are 32-bit values (at least as
far as the calling convention is concerned), so I'm a bit confused as
to how the change is causing any trouble here. Can you explain that
a bit?
-Eric
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