func imageBrowser (IKImageBrowserView!, backgroundWasRightClickedWith : NSEvent!)
Performs custom tasks when the user right-clicks the image browser view background.
func imageBrowser (IKImageBrowserView!, cellWasRightClickedAt : Int, with: NSEvent!)
Performs custom tasks when the user right-clicks an item in the image browser view.
func imageBrowserSelectionDidChange (IKImageBrowserView!)
Performs custom tasks when the selection changes.