C#实现网页截图功能

private void Form_Load(object sender, EventArgs e){  //接收web url  string colle = string.Empty;  string url = string.Empty;  //获取进程调用传入的命令  string[] args = Environment.GetCommandLineArgs();  string[] args = new string[] { @"E:/MicroSpace/MicroSpace/localpage/Debug/GetCutImage.exe", "-u:http://sliefj.com/template/amo.html","-n:E://TEST//test.jpg" };  for (int i = 1; i < args.Length; i++)  { switch (args[i].Substring(0, 3)) {   case "-u:": url = args[i].Substring(3); break;   case "-n:": imagename = args[i].Substring(3); break;   default:             colle = args[i]; break; }  }  WebBrowser webBrowser = new WebBrowser(); // 创建一个WebBrowser  webBrowser.ScrollBarsEnabled = false; // 隐藏滚动条  webBrowser.Navigate(url); // 打开网页  webBrowser.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(webBrowser_DocumentCompleted); // 增加网页加载完成事件处理函数}private void webBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e){  WebBrowser webBrowser = (WebBrowser)sender;  // 网页加载完毕才保存  if (webBrowser.ReadyState == WebBrowserReadyState.Complete)  { bool save_suc = true; try {   // 获取网页高度和宽度,也可以自己设置   int height = webBrowser.Document.Body.ScrollRectangle.Height;   int width = webBrowser.Document.Body.ScrollRectangle.Width;   //截图宽度、高度   int imgwidth = width - 2 * 60;   int imgheight = height - 48;   // 调节webBrowser的高度和宽度   webBrowser.Height = height;   webBrowser.Width = width;   Bitmap bitmap = new Bitmap(width, height); // 创建高度和宽度与网页相同的图片   Rectangle rectangle = new Rectangle(0, 0, width, height); // 绘图区域   //Rectangle mm=new Rectangle(   webBrowser.DrawToBitmap(bitmap, rectangle); // 绘制浏览器图片至bitmap   int bmpw = bitmap.Width;   int bmph = bitmap.Height;   System.Drawing.Image Imag = new System.Drawing.Bitmap(imgwidth, imgheight);//创建Image   System.Drawing.Graphics gp = System.Drawing.Graphics.FromImage(Imag);//获取Image的Graphics   //通过Graphics绘图实现截图效果   gp.DrawImage(bitmap,new Rectangle(0,0,imgwidth,imgheight),new Rectangle(60,48,imgwidth,imgheight),GraphicsUnit.Pixel);   //保存   Imag.Save(imagename, System.Drawing.Imaging.ImageFormat.Jpeg);   //bitmap.Save(imagename, System.Drawing.Imaging.ImageFormat.Jpeg);   bitmap.Dispose();   gp.Dispose();   Imag.Dispose(); } catch (Exception ex)        {  } finally {   this.Dispose(true);   System.Diagnostics.Process.GetCurrentProcess().Kill();   this.Close();   Application.Exit(); }  }}//图片保存方式//imagename 图片路径bitmap.Save(imagename, System.Drawing.Imaging.ImageFormat.Jpeg);Image.Save(imagename, System.Drawing.Imaging.ImageFormat.Jpeg);