Swift NSImage to CGImage

Question

How can I convert a NSImage to CGImage in Swift? In Objective-C I did it like this:

- (CGImageRef)CGImage {
    NSData *imageData = self.TIFFRepresentation;
         


        

Answer 1

A Swift 5 implementation:

extension NSImage {
    var CGImage: CGImage {
        get {
            let imageData = self.tiffRepresentation!
            let source = CGImageSourceCreateWithData(imageData as CFData, nil).unsafelyUnwrapped
            let maskRef = CGImageSourceCreateImageAtIndex(source, Int(0), nil)
            return maskRef.unsafelyUnwrapped
        }
    }
}