private Image GetWebImage(WebBrowser WebCtl, HtmlElement ImgeTag)

        {

            HTMLDocument doc = (HTMLDocument)WebCtl.Document.DomDocument;

            HTMLBody body = (HTMLBody)doc.body;

            IHTMLControlRange rang = (IHTMLControlRange)body.createControlRange();

            IHTMLControlElement Img = (IHTMLControlElement)ImgeTag.DomElement; //图片地址  

            Image oldImage = Clipboard.GetImage();

            rang.add(Img);

            rang.execCommand("Copy", false, null);  //拷贝到内存  

            Image numImage = Clipboard.GetImage();

            try

            {

                Clipboard.SetImage(oldImage);

            }

            catch

            {

            }

            return numImage;

        }