Is it possible to display a custom cursor or cursor badge in cocoa?

http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/ApplicationKit/Classes/NSCursor_Class/Reference/Reference.ht开发者_运维百科ml

This shows the available cursors, that are build into Cocoa, its it possible to append a custom png to the cursor using built-in methods?

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How about -[NSCursor initWithImage:hotSpot:] followed by -[NSCursor set]?