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  1.   

    目前的WPF项目中,没有接触过触摸屏的需求.
    仅知道所有UIElement的子类都支持Touch事件
                UIElement elem = new UIElement();
                elem.TouchDown += (s, e) =>
                    {
                        Console.WriteLine("Touch down, TouchDevice={0}, TouchPoint={1}", e.TouchDevice, e.GetTouchPoint(elem));
                    };
                elem.TouchMove += (s, e) =>
                    {
                        Console.WriteLine("Touch move, TouchDevice={0}, TouchPoint={1}", e.TouchDevice, e.GetTouchPoint(elem));
                    };            //其他事件: elem.TouchUp; elem.TouchLeave;elem.TouchEnter