On 12.02.2009, at 17:14, Jean-Daniel Dupas wrote:
Unfortunately, I don't think you can save an NSImage as a PNG (it
only supports the TIFFRepresentation method).
You can create a new NSBitmapImageRep using the TIFFRepresentation and
use representationUsingType:properties:
to get the PNG-data:
NSData* TIFFData = [img TIFFRepresentation];
NSBitmapImageRep* bitmapImageRep = [NSBitmapImageRep
imageRepWithData:TIFFData];
NSData* PNGData = [bitmapImageRep
representationUsingType:NSPNGFileType properties:nil];
[PNGData writeToFile: @"JAN01.png" atomically: YES];
HTH,
felix
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