CairoSamples.Form1.curveToToolStripMenuItem_Click C# (CSharp) Метод

        private void curveToToolStripMenuItem_Click(object sender, EventArgs e)
        {
            lastSelected = "curveTo";
            OnPaintAction = cr =>
            {
                double x = 25.6, y = 128.0;
                double x1 = 102.4, y1 = 230.4,
                       x2 = 153.6, y2 = 25.6,
                       x3 = 230.4, y3 = 128.0;

                cr.MoveTo( x, y);
                cr.CurveTo( x1, y1, x2, y2, x3, y3);

                cr.LineWidth = 10.0;
                cr.Stroke();

                cr.SetSourceRGBA(1, 0.2, 0.2, 0.6);
                cr.LineWidth = 6.0;
                cr.MoveTo(x, y); cr.LineTo(x1, y1);
                cr.MoveTo(x2, y2); cr.LineTo(x3, y3);
                cr.Stroke();
            };

            Invalidate();
        }