关键代码为
Screen sc = Screen.PrimaryScreen; Rectangle rct = sc.Bounds; Image img = new Bitmap(rct.Width, rct.Height); Graphics gp = Graphics.FromImage(img); gp.CopyFromScreen(new Point(0, 0), new Point(0, 0), new Size(rct.Width, rct.Height)); SolidBrush sb = new SolidBrush(Color.Red); Font ft = new System.Drawing.Font("黑体",16); gp.DrawString("这是什么",ft,sb,new PointF(0,rct.Height-ft.Height)); img.Save(@"d:1.bmp");