webbrowser-C#-两种方法取得验证码
//先添加对 mshtml 的引用, 在 COM 页上, 选择 Microsoft HTML Object Library
//使用命名空间 using mshtml;
//登录url 有id http://passport.csdn.net/UserLogin.aspx
//登录url 没有id http://www.himporter.com/index.php?c=Members
方法一 有id
HTMLDocument html = (HTMLDocument)this.webBrowser1.Document.DomDocument;
IHTMLControlElement img = (IHTMLControlElement)webBrowser1.Document.Images["MzImgExpPwd"].DomElement;
IHTMLControlRange range = (IHTMLControlRange)((HTMLBody)html.body).createControlRange();
range.add(img);
range.execCommand("Copy", false, null);
img = null;
range = null;
html = null;
if
(Clipboard.ContainsImage())
{
this.pictureBox1.Image = Clipboard.GetImage();
}
else
{
MessageBox.Show("执行不成功");
}
Clipboard.Clear();
HtmlElementCollection hc = webBrowser1.Document.GetElementsByTagName("img");
HtmlElement h0 = null;
foreach (HtmlElement h in hc)
{
if (h.OuterHtml.Contains("imgcode.html"))
{
h0 = h;
//MessageBox.Show(h.OuterHtml.ToString());
}
}
//MessageBox.Show( h0.GetAttribute("src"));
string imgurl=h0.GetAttribute("src");
pictureBox1.ImageLocation = imgurl;