kCGImagePropertyDNGPreviewDateTime The date and time for the render of the preview. Declarationlet kCGImagePropertyDNGPreviewDateTime: CFString See AlsoPreviewkCGImagePropertyDNGPreviewApplicationNamekCGImagePropertyDNGPreviewApplicationVersionkCGImagePropertyDNGPreviewSettingsNamekCGImagePropertyDNGPreviewSettingsDigestkCGImagePropertyDNGPreviewColorSpace