IHTMLDocument

HRESULT CMyWebBrowserDlg::OnButtonCancel(IHTMLElement* pElement)
{
	

	//Navigate(_T("http://www.baidu.com"));

	CString url;
	GetCurrentUrl(url);

	CComPtr<IHTMLInputElement> BtnOK;   
	GetElementInterface(_T("TestButton"), IID_IHTMLInputElement, reinterpret_cast<void**>(&BtnOK));
	if (BtnOK)  
	{
		IHTMLElement*   pControl   =   NULL; 
		BtnOK->QueryInterface(IID_IHTMLElement,   (void**)&pControl); 
		pControl->click();
		pControl->Release();

		IHTMLControlElement*   pControl2   =   NULL; 
		BtnOK->QueryInterface(IID_IHTMLControlElement,   (void**)&pControl2); 
		pControl2->focus();
		pControl2->Release();

		//CComBSTR value;  
		//BtnOK->get_value(&value);  
		//if (value == L"确定")  
		//	BtnOK->put_value(L"取消");  
		//else
		//	BtnOK->put_value(L"确定");  
	}

	//OnCancel();
	return S_OK;
}