Class

QLThumbnailReply

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

Declaration

@interface QLThumbnailReply : NSObject

Topics

Creating a Thumbnail

+ replyWithContextSize:currentContextDrawingBlock:

Creates a new thumbnail for a custom file type in the current context.

+ replyWithContextSize:drawingBlock:

Creates a new thumbnail for a custom file type in the given context.

+ replyWithImageFileURL:

Creates a new thumbnail for a custom file type using a file at the given URL.

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.

QLFileThumbnailRequest

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