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2014/10/15 ¤U¤È 10:04:42
iphone Programming Glossary: bpshttp://stackoverflow.com/questions/2475450/extracting-images-from-a-pdf NULL CGPDFStreamRef dataStream CGPDFDataFormat format CGPDFDictionaryRef dict CGPDFInteger width height bps spp CGPDFBoolean interpolation 0 NSString colorSpace nil CGColorSpaceRef cgColorSpace const char name NULL colorSpaceName.. nil if CGPDFDictionaryGetInteger dict Height height return nil if CGPDFDictionaryGetInteger dict BitsPerComponent bps return nil if CGPDFDictionaryGetBoolean dict Interpolate interpolation interpolation NO if CGPDFDictionaryGetName dict Intent.. 0 cgColorSpace CGColorSpaceCreateDeviceGray CGColorSpaceCreateWithName kCGColorSpaceGenericGray spp 1 else if bps 1 if there's no colorspace entry there's still one we can infer from bps cgColorSpace CGColorSpaceCreateDeviceGray colorSpace..
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