On Jan 28, 2014, at 12:37 PM, Peng Gu <[email protected]> wrote: > kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Little
You just asked Core Graphics to make a context with alpha, and thus an image with alpha. Core Animation doesn’t enumerate all the pixels of the image to determine if there is alpha, it just looks at the image flags. If you don’t want alpha, use kCGImageAlphaNoneSkipFirst instead. -- David Duncan _______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
