得到HTMLView的源文件，如何做修改 ，然后再显示出来？

IHTMLDocument3 * pDoc;
IDispatch * idisp = this->GetHtmlDocument();
HRESULT hr = idisp->QueryInterface(IID_IHTMLDocument3, (void **)&pDoc);

idisp->Release();

CComPtr <IHTMLElement> rootElement;
FAILED(pDoc->get_documentElement(&rootElement));


pDoc->Release();

CComQIPtr <IHTMLDOMNode> rootNode = rootElement ;

CComQIPtr<IDispatch> spCollectionDispatch; 
rootNode->get_childNodes( & spCollectionDispatch ) ;


long numChildren = 0; 
CComQIPtr<IHTMLDOMChildrenCollection> spCollection = spCollectionDispatch; 
spCollection->get_length( & numChildren); //只有1个孩子节点，纳闷。
for ( long i = 0; i < numChildren; i++) { 
CComPtr<IDispatch> spItemDispatch; 
spCollection->item( i , &spItemDispatch); 
CComQIPtr<IHTMLDOMNode> spItemNode = spItemDispatch; 
CComQIPtr<IHTMLDOMNode> spnextItemNode; 

_bstr_t nodeName;
BSTR bstrNodeName;
spItemNode->get_nodeName(&bstrNodeName);
spItemNode->get_firstChild(&spnextItemNode);
CComQIPtr <IHTMLElement> childelem = spnextItemNode ;
long value;
childelem->get_offsetWidth(&value);//得到该标签的宽属性
BSTR str =(BSTR)("width");


nodeName = bstrNodeName;
VARIANT vValue; 
spnextItemNode->get_nodeName(&bstrNodeName);

long j;
spnextItemNode->get_nodeType(&j);
}

哪位大侠帮帮忙呀？实在不会IHTMLDOCUMENT这个接口，对MFC也不是很熟悉。

自己研究了~~还是自己靠得住呀~~

^_^，gxgx