一个难题：关于OCX控件在IE中取得所在页面的URL.

Question

以下为在网上找到的例子,但出错.HRESULT hrResult = S_FALSE;
 IOleClientSite *pClientSite = NULL;
 IMoniker* pMoniker = NULL;
 LPOLESTR sDisplayName; pClientSite = GetClientSite(); //出错， 返加NULL值 hrResult = pClientSite ->GetMoniker(OLEGETMONIKER_TEMPFORUSER,
                                       OLEWHICHMK_CONTAINER,
                                       &pMoniker);
 if(SUCCEEDED(hrResult))
 {
  hrResult = pMoniker->GetDisplayName(NULL,
                                      NULL,
                                      &sDisplayName);
  pMoniker->Release();
 }望高手能指点。

Answer 1

CComPtr<IOleContainer> spContainer; 
spClientSite->GetContainer(&spContainer);
CComQIPtr<IHTMLDocument2, &IID_IHTMLDocument2> spDoc(spContainer); 
if (spDoc)
{
BSTR bstrDomain;
if(SUCCEEDED(spDoc->get_domain(&bstrDomain)))
{                           bstrDomain就是网址了
}
}

Answer 2

参考：
http://community.csdn.net/Expert/topic/4554/4554463.xml?temp=.1101801

Answer 3

http://topic.csdn.net/t/20041028/20/3501110.html