Class

QLThumbnailRepresentation

The representation of a thumbnail.

Declaration

@interface QLThumbnailRepresentation : NSObject

Overview

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 NSImage or UIImage properties.

See QLThumbnailGenerationRequestRepresentationTypes for more information about the different types of thumbnails that QLThumbnailGenerator can create.

Topics

Thumbnail Images

CGImage

A thumbnail in the form of a Core Graphics image object.

NSImage

A thumbnail in the form of an AppKit image object.

UIImage

A thumbnail in the form of a UIKit image object.

type

The type of thumbnail.

QLThumbnailRepresentationType

The different types of thumbnails that you can create.

Relationships

Inherits From

See Also

Thumbnail Generation

Creating Quick Look Thumbnails to Preview Files in Your App

Generate thumbnails of images, text files, PDFs, audio files, videos, and more.

QLThumbnailGenerator

An object that generates thumbnail images based on provided requirements.