> On Nov 2, 2020, at 3:20 PM, Carl Hoefs <newsli...@autonomy.caltech.edu> wrote:
> 
> Okay. It was my understanding that -TIFFRepresentation was the only way to 
> get serializable image data bytes... What is a more efficient way to do this?

If you want serializable data bytes, sure, but thats not what you appear to be 
doing in the code you sent – you appear to want a bitmap representation. 
Presumably you go on to do something other than serialize it (as I imagine you 
want to draw it in some way).

In general if you want something you can draw, you can get a 
-CGImageForProposedRect:context:hints, and if you need an NSBitmapRep you can 
use -bestRepresentationForRect:context:hints:. But assuming your trying to get 
that NSImage somewhere other than into (say) an NSImageView, there may be 
better APIs or pathways to that solution.

> -Carl
> 
> 
>> On Nov 2, 2020, at 3:09 PM, David Duncan <david.dun...@apple.com 
>> <mailto:david.dun...@apple.com>> wrote:
>> 
>> Also any code using -TIFFRepresentation for any reason other than to get 
>> actual TIFF data is likely suspect. There are absolutely more efficient ways 
>> to do this.
> 

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