A key for showing an empty picture. The associated value is an NSImage object. The default value is nil. If set to an image, the picture taker automatically shows an image at the end of the Recent Pictures pop-up menu. that means "no picture."
Available in Mac OS X v10.5 and later.
Declaration Syntax Version Information- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)