HRESULT XMLHelper::CreateNode(MSXML2::IXMLDOMDocument2 *doc, MSXML2::IXMLDOMNode *parent, MSXML2::IXMLDOMNode **newNode, const TCHAR *name)
{
HRESULT hr = S_OK;
bool release = false;
if(!parent)
{
MSXML2::IXMLDOMElement *element = 0;
hr = doc->get_documentElement(&element);
if(hr == S_OK)
{
hr = element->QueryInterface(IID_IXMLDOMNode, reinterpret_cast<void **>(&parent));
}
release = true;
}
if(hr == S_OK && parent)
{
hr = XMLHelper::CreateChild(parent, newNode, name);
}
if(release)
{
parent->Release();
parent = 0;
}
return hr;
}
MSXML2::IXMLDOMNode * RecurrenceManager::GetRecurrencesNode()
{
MSXML2::IXMLDOMNode *pNode = 0;
MSXML2::IXMLDOMElement *pRoot = 0;
HRESULT hr = m_pXMLDoc->get_documentElement(&pRoot);
BSTR xpath = SysAllocString(_T("//recurrences"));
hr = m_pXMLDoc->selectSingleNode(xpath, reinterpret_cast<MSXML2::IXMLDOMNode **>(&pNode));
SysFreeString(xpath);
if(hr == S_FALSE)
{
MSXML2::IXMLDOMNode *pRootNode = 0;
pRoot->QueryInterface(IID_IXMLDOMNode, reinterpret_cast<void **>(&pRootNode));
XMLHelper::CreateChild(pRootNode, &pNode, _T("recurrences"));
pRootNode->Release();
}
pRoot->Release();
return pNode;
}