Get QuickLook preview image for file

Question

Is there any way to get the quick look preview image for a file?

I\'m looking for something like this:

NSImage *image = [QuickLookPreviewer quickLookPr

Answer 1

In Swift I ended up with something like this (the force unwraps should be replaced):

let options = [
  kQLThumbnailOptionIconModeKey: false
]

let ref = QLThumbnailCreate(
  kCFAllocatorDefault,
  url as NSURL,
  CGSize(width: 150, height: 150),
  options as CFDictionary
)

let thumbnail = ref!.takeRetainedValue()
let cgImageRef = QLThumbnailCopyImage(thumbnail)
let cgImage = cgImageRef!.takeRetainedValue()
let image = NSImage(cgImage: cgImage, size: CGSize(width: cgImage.width, height: cgImage.height))