// NewWindow3 event, used on Windows XP SP2 and higher
public void NewWindow3(ref object ppDisp, ref bool Cancel, uint dwFlags, string bstrUrlContext, string bstrUrl)
{
BrowserNavigationEventArgs args = new BrowserNavigationEventArgs(ppDisp, new Uri(bstrUrl), null, (EnumUrlContext)dwFlags);
_webBrowser.OnStartNewWindow(args);
Cancel = args.Cancel;
ppDisp = args.AutomationObject;
}
//The NewWindow2 event, used on Windows XP SP1 and below
public void NewWindow2(ref object pDisp, ref bool cancel)
{
BrowserNavigationEventArgs args = new BrowserNavigationEventArgs(pDisp, null, null, EnumUrlContext.None);
_webBrowser.OnStartNewWindow(args);
cancel = args.Cancel;
pDisp = args.AutomationObject;
}
protected void OnStartNewWindow(BrowserNavigationEventArgs e)
{
if (e == null)
{
throw new ArgumentNullException("e");
}
bool allowPopup = (e.NavigationContext == EnumUrlContext.None) || ((e.NavigationContext & EnumUrlContext.OverrideKey) == EnumUrlContext.OverrideKey);
if (!allowPopup)
{
switch (_popupLevel)
{
case EnumPopupLevel.AllowAllPopups:
allowPopup = true;
break;
case EnumPopupLevel.AllowSecureSites:
if (EncryptionLevel != WebBrowserEncryptionLevel.Insecure)
{
allowPopup = true;
break;
}
else
{
goto EnumPopupLevel_BlockMost;
}
case EnumPopupLevel.BlockMost:
EnumPopupLevel_BlockMost:
if ((e.NavigationContext & EnumUrlContext.UserFirstInited) == EnumUrlContext.UserFirstInited
&&
(e.NavigationContext & EnumUrlContext.UserInited) == EnumUrlContext.UserInited)
{
allowPopup = true;
}
break;
}
}
if (allowPopup)
{
if (this.StartNewWindow != null)
{
this.StartNewWindow(this, e);
}
if (e.Cancel)
{
if (_webBrowser2 != null)
{
e.AutomationObject = _webBrowser2.Application;
}
}
}
else
{
e.Cancel = true;
}
}
protected void OnStartNavigate(BrowserNavigationEventArgs e)
{
if (e == null)
{
throw new ArgumentNullException("e");
}
if (this.StartNavigate != null)
{
this.StartNavigate(this, e);
}
}
//Implement whichever events you wish
public void BeforeNavigate2(object pDisp, ref object URL, ref object flags, ref object targetFrameName, ref object postData, ref object headers, ref bool cancel)
{
Uri urlUri = new Uri(URL.ToString());
string tFrame = null;
if (targetFrameName != null)
{
tFrame = targetFrameName.ToString();
}
if (_webBrowser != null)
{
BrowserNavigationEventArgs args = new BrowserNavigationEventArgs(pDisp, urlUri, tFrame, EnumUrlContext.None);
_webBrowser.OnStartNavigate(args);
cancel = args.Cancel;
}
}