CCT.NUI.WPFSamples.TouchWindow.handDataSource_NewDataAvailable C# (CSharp) Method

        private void handDataSource_NewDataAvailable(HandCollection data)
        {
            if (data.IsEmpty || !data.Hands.First().HasFingers)
            {
                this.Dispatcher.Invoke(new Action(() =>
                {
                    foreach (var line in mainCanvas.Children.OfType<Line>().ToList())
                    {
                        mainCanvas.Children.Remove(line);
                    }
                }));
            }
        }