[gnomemm] CanvasItem Event Handling error.

["gao chaowei" <chaoweigao hotmail com>]

I want the canvas item to handle event. I use the statement 
          CanvasItem *item = new CanvasEllipse(...); 
          item.event.connect(slot(this, &some_class::some_fun)); 
But this issue a compile error. what's the problem and how to solve it? 
Urgent 

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