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TIFFRepresentation, different TIFF format under Snow Leopard

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TIFFRepresentation, different TIFF format under Snow Leopard

Subject: TIFFRepresentation, different TIFF format under Snow Leopard
From: Peter C <email@hidden>
Date: Mon, 12 Oct 2009 19:36:12 +0800

I just stumble into a feature (or a bug ?), NSImage TIFFRepresentation produce RGB TIFF with a layer (when open under Photoshop). Previously it produce plain RGB TIFF under OS 10.5 and below. This cause some part of my programs interpret wrong RGB data, expecting 3 bytes instead of 4 bytes for a RGB pixel. There is no mention in the documents about this "feature".

Is there a way to restore the previous behavior  of TIFFRepresentation ?


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