Global Variable



let kCGImageSourceShouldCache: CFString


Whether the image should be cached in a decoded form. The value of this key must be a CFBoolean value. The default value is kCFBooleanFalse in 32-bit, kCFBooleanTrue in 64-bit. This key can be provided in the options dictionary that you can pass to the functions CGImageSourceCopyPropertiesAtIndex(_:_:_:) and CGImageSourceCreateImageAtIndex(_:_:_:).

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