The representation of a thumbnail.
- iOS 13.0+
- macOS 10.15+
- Mac Catalyst 13.0+
QuickLookThumbnailing is a non-UI framework, so your app doesn’t have to link to either UIKit or AppKit. It generates a thumbnail as a Core Graphics image object and makes the thumbnail available as the
CGImage property. In case an app links to AppKit or UIKit, the thumbnail is available through the
QLThumbnail for more information about the different types of thumbnails that
QLThumbnail can create.