Alteridem.WinTouch.Demo.GestureControl.OnZoom C# (CSharp) Method

        void OnZoom( object sender, ZoomEventArgs e )
        {
            string msg = string.Format( "Zoom Loc:({0},{1}) Distance:{2}", e.Location.X, e.Location.Y, e.Distance );
            Debug.WriteLine( msg );

            if ( !e.Begin )
            {
                _size = (int)(_size * e.PercentChange);
                Invalidate();
            }
        }