Class

QLFileThumbnailRequest

A request to generate a thumbnail for a custom file type.

Declaration

@interface QLFileThumbnailRequest : NSObject

Topics

Describing the Requested Thumbnail

maximumSize

The maximum accepted size of a thumbnail.

minimumSize

The minimum accepted size of a thumbnail.

scale

The scale of the requested thumbnail.

fileURL

The URL of the image file to use for the thumbnail.

Relationships

Inherits From

See Also

Thumbnails for Custom File Types

Providing Thumbnails of Your Custom File Types

Implement a Thumbnail Extension to allow the operating system and other apps to display thumbnails of your custom files.

QLThumbnailProvider

An abstract base class for creating thumbnails of custom file types.

QLThumbnailReply

The object that provides a thumbnail for a custom file type.