支持在UNICODE工程下获取HTML代码，无乱码。。。。发了两年多了才知道，害得我找了一晚上，没想到自己的博客里就有。。。

BOOL CWeb::GetSource(CString& strString) 
{ 
    IHTMLDocument2* pHtmlDoc2 = (IHTMLDocument2*)GetHtmlDocument(); 
    // check if HtmlDocument initialized 
    if( pHtmlDoc2 != NULL) 
    { 
        IHTMLDocument3* pHTMLDoc3 = NULL; 
        HRESULT hr = pHtmlDoc2->QueryInterface(IID_IHTMLDocument3, (LPVOID*)&pHTMLDoc3); 
        ASSERT(SUCCEEDED(hr)); 
        if(pHTMLDoc3) 
        { 
            IHTMLElement* pDocElem=NULL; 
            hr = pHTMLDoc3->get_documentElement(&pDocElem); 
            ASSERT(SUCCEEDED(hr)); 
            if(pDocElem) 
            { 
                BSTR bstrHTML; 
                pDocElem->get_outerHTML(&bstrHTML); 
                pDocElem->Release(); 
                USES_CONVERSION; 
                //MessageBox(OLE2T(bstrHTML), _T("源文件")); 
                strString = OLE2T(bstrHTML); 
                SysFreeString(bstrHTML); 
            } 
            pHTMLDoc3->Release(); 
        } 
        pHtmlDoc2->Release(); 
        pHtmlDoc2=NULL; 
    }
    return TRUE; 
}