AGG.aa_test.OnMouseDown C# (CSharp) Method

        public override void OnMouseDown(MouseEventArgs mouseEvent)
        {
            if(mouseEvent.Button == MouseButtons.Left)
            {
                for (int i = 0; i < 2; i++)
                {
                    double x = mouseEvent.X;
                    double y = mouseEvent.Y;
                    if(Math.Sqrt( (x-m_x[i]) * (x-m_x[i]) + (y-m_y[i]) * (y-m_y[i]) ) < 5.0)
                    {
                        m_dx = x - m_x[i];
                        m_dy = y - m_y[i];
                        m_idx = i;
                        break;
                    }
                }
            }

            base.OnMouseDown(mouseEvent);
        }