Re: Strange issue with PNG files

On Mar 4, 2010, at 2:06 PM, Avi Drissman wrote:

> It's apparently not a 72ppi picture. Even though the image is 16x14 pixels, at ~200ppi something 14 pixels high is only 5 points high.
> 
> You are getting the full image, and I bet if you took the NSImageRep and asked it for -pixelsHigh or -pixelsWide you'd get the 14 and 16.

Yes, that is true.

> If you want to draw it pixel for pixel despite the high ppi, use -pixelsHigh/-pixelsWide, create an NSSize of that size, and draw it "scaled".

So, the only/recommended way to determine when an image is in this state is to compare what [image size] returns vs. pixelsHeight & pixelsWide?