枚举所有iframe的IWebBrowser2
// Get the IDispatch of the document.
//
LPDISPATCH lpDisp = NULL;
lpDisp = m_webBrowser.GetDocument(); if (lpDisp)
{
IOleContainer* pContainer; // Get the container.
//
HRESULT hr = lpDisp->QueryInterface(IID_IOleContainer,
(void**)&pContainer);
lpDisp->Release(); if (FAILED(hr))
return hr; // Get an enumerator for the frames.
//
IEnumUnknown* pEnumerator; hr = pContainer->EnumObjects(OLECONTF_EMBEDDINGS, &pEnumerator);
pContainer->Release(); if (FAILED(hr))
return hr; IUnknown* pUnk;
ULONG uFetched; // Enumerate and refresh all the frames.
//
for (UINT i = ; S_OK == pEnumerator->Next(, &pUnk, &uFetched); i++)
{
// QI for IWebBrowser here to see whether we have
// an embedded browser.
IWebBrowser2* pWebBrowser; hr = pUnk->QueryInterface(IID_IWebBrowser2, (void**)&pWebBrowser);
pUnk->Release(); if (SUCCEEDED(hr))
{
// Refresh the frame.
pWebBrowser->Refresh();
pWebBrowser->Release();
}
} pEnumerator->Release();
}
枚举所有iframe的element
HRESULT hr = S_OK; try
{
CComPtr<IDispatch> spDispDoc;
hr = m_spWebBrowser->get_Document(&spDispDoc); // find all iframe elements and filter by id, then insert ad js
CComQIPtr<IHTMLDocument2> spDoc2 = spDispDoc; if(spDoc2){
CComQIPtr<IHTMLElementCollection> spAll;
hr = spDoc2->get_all(&spAll);
if (SUCCEEDED(hr)) {
CComPtr<IDispatch> spDispObjects;
// just handle iframes as example
CComVariant varTag = _T("IFRAME");
varTag.vt = VT_BSTR;
hr = spAll->tags(varTag, &spDispObjects); if(SUCCEEDED(hr))
{
CComQIPtr<IHTMLElementCollection> spElementCollection = spDispObjects;
long lObjectCount = ;
if( spElementCollection )
hr = spElementCollection->get_length(&lObjectCount);if (SUCCEEDED(hr) && lObjectCount > )
{
for (int i = ; i < lObjectCount; i++)
{
CComVariant vIndex = i;
CComVariant vEmpty;
CComPtr<IDispatch> spdispObject;
hr = spElementCollection->item(vIndex, vEmpty, &spdispObject);
if (SUCCEEDED(hr))
{
CComQIPtr<IHTMLElement> spElement = spdispObject;
if (spElement)
{
CComBSTR bstrId = _T("");;
long width = , height = ;
spElement->get_id(&bstrId);
spElement->get_offsetHeight(&height);
spElement->get_offsetWidth(&width); if(!IsAcceptableSize(width, height))
continue;
CComVariant vSrcUrl = _T("");
hr = spElement->getAttribute(_T("src"), 0, &vSrcUrl);
} } } } } } } } catch(_com_error &ex) { LPCTSTR errMsg = ex.ErrorMessage(); WriteLog(_T("_com_error: ") + CString(errMsg)); } return hr;