Point screenPoint = 控件.PointToScreen(new Point());Rectangle rect = new Rectangle(screenPoint, chartCellLine.Size);Image img = new Bitmap(rect.Width, rect.Height);Graphics g = Graphics.FromImage(img);g.CopyFromScreen(rect.X - 1, rect.Y - 1, 0, 0, rect.Size);img.Save(strPicPath, System.Drawing.Imaging.ImageFormat.Jpeg);//截图窗体上任意位置的控件