Hello, I am working on a BHO for ie and I'm having some problems.
I have two questions.
1) How can I identify the first request for each website visited on IE (because OnBeforeNavigate2 and other events gets triggered more than once per website).
2) I want to get the website metatags in but how can I know when the DOM is ready and it's not the about
:blank or a previous website DOM? (I don't want to wait for images and all that, only the html source).
Here's a little explanation of my code.
In the BHO I use:
- public int SetSite(object site)
-
{
-
if (site != null)
-
{
-
webBrowser = (WebBrowser)site;
-
webBrowser.BeforeNavigate2+=new DWebBrowserEvents2_BeforeNavigate2EventHandler(this.OnBeforeNavigate2);
-
}
-
else
-
{
-
webBrowser.BeforeNavigate2 -= new DWebBrowserEvents2_BeforeNavigate2EventHandler(this.OnBeforeNavigate2);
-
webBrowser = null;
-
}
-
return 0;
-
}
And in that event:
- public void OnBeforeNavigate2(object pDisp, ref object URL, ref object Flags, ref object TargetFrameName, ref object PostData, ref object Headers, ref bool Cancel)
-
{
-
document = (HTMLDocument)webBrowser.Document;
-
string URI;
-
if (URL.ToString().ToLower() == "about:blank")
-
{
-
URI = document.url;
-
}
-
else
-
{
-
URI = URL.ToString();
-
}
-
//How can I find if this is the first request to the main URL?
-
}
An example of what I am trying to achieve would be:
I open IE, I type google.com, OnBeforeNavigate2 gets triggered for the first time and I get the main url in URI and I do whatever I want with it. Now I want to ignore all the OnBeforeNavigate2
until a new website is visited, could be by typing the url, clicking a link, etc.
I hope someone can help me out with this.
Regards.
