Global Variable

kCGImageSourceThumbnailMaxPixelSize

Declaration

let kCGImageSourceThumbnailMaxPixelSize: CFString

Discussion

The maximum width and height in pixels of a thumbnail. If this key is not specified, the width and height of a thumbnail is not limited and thumbnails may be as big as the image itself. If present, this key must be a CFNumber value. This key can be provided in the options dictionary that you pass to the function CGImageSourceCreateThumbnailAtIndex(_:_:_:).