I'm not sure if this is rightly a Cocoa question or Quartz, so I'm posting on
both lists. Sorry for the double...
I have a CGImageRef, and I need to put it into a PDFPage. At the moment, the
only way I see to do that is to turn it into an NSImage first. I've currently
got:
NSImage* cgImageToNSImage(CGImageRef image)
{
int h, w;
h = CGImageGetHeight(image);
w = CGImageGetWidth(image);
NSMutableData* imgData = [NSMutableData dataWithLength: h * w * 4];
CGImageDestinationRef dest = CGImageDestinationCreateWithData
(imgData, kUTTypeTIFF, 1, NULL);
[imgData retain];
CGImageDestinationAddImage(dest, image, NULL);
CGImageDestinationFinalize(dest);
NSImage* img = [NSImage alloc];
[img initWithData: imgData];
CFRelease (dest);
[imgData release];
return img;
}
But this consistantly gives me the error: tiff data provider: Not a TIFF file,
bad magic number 0 (0x0).
I'm pretty sure that the CGImage is a valid image, and I don't see any options
to AddImage that look helpful...
Is there something obvious that I'm missing?
thanks.
Brian Postow
Senior Software Engineer
Acordex Imaging Systems
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