gistfile1.txt

import Cocoa

class ViewController: NSViewController {
                            
    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
                                    
    }

    override var representedObject: AnyObject? {
        didSet {
        // Update the view, if already loaded.
        }
                                    
    }

    @IBOutlet var imagePathControl : NSPathControl
    @IBOutlet var imageView : NSImageView
    
    @IBAction func updateImage(sender :AnyObject) {
        let imageURL = self.imagePathControl?.URL
        let image = NSImage(byReferencingURL: imageURL)
        
        if image.valid {
            self.imageView.image = image
        }
    }

}