屏幕截图

private void cutScreen()

        {
            ini_init();
            try
            {
                this.WindowState = FormWindowState.Minimized; //最小化当前窗口
                Thread.Sleep(500);//延时2秒

                if (Directory.Exists(mypath))  //判断目录是否存在,不存在就创建
                { }
                else
                {
                    DirectoryInfo directoryInfo = new DirectoryInfo(mypath);
                    directoryInfo.Create();
                }
                //创建图片对象
                Bitmap bmp2 = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);
                Graphics g2 = Graphics.FromImage(bmp2);  //创建画笔
                g2.CopyFromScreen(new Point(0, 0), new Point(0, 0), bmp2.Size);//截屏
                string time = DateTime.Now.ToString("yyyy-MM-dd HHmmssfff");//获得系统时间
                //time = System.Text.RegularExpressions.Regex.Replace(time, @"[^0-9]+", "");//提取数字
                string fileName = mypath +@""+ time + ".bmp"; //创建文件名
                bmp2.Save(fileName); //保存为文件  ,注意格式是否正确.
                bmp2.Dispose();//关闭对象
                g2.Dispose();//关闭画笔
                label1.Text = "截图成功";
                Thread.Sleep(500);//延时2秒
                this.WindowState = FormWindowState.Maximized; //最小化当前窗口
                pictureBox1.Image = Image.FromFile(fileName);
                if (autoexit == "1")
                {
                    checkBox2.Checked = true;
                    Thread.Sleep(1000);
                    DialogResult dr = MessageBox.Show("是否退出", "结束截图", MessageBoxButtons.YesNoCancel);
                    if (dr == DialogResult.OK)
                    {
                        this.Dispose();
                    }

                }
               
            }
            catch (Exception cse)
            {
                label1.Text = cse.ToString();
            }
           

 
        }