持续例子程序,IXMLDOMDocument实现保存一个简单的XML文件

继续例子程序,IXMLDOMDocument实现保存一个简单的XML文件
如题,谢谢各位
指教.
[解决办法]
/************************************************************************/
/*Load the XML profiles of main menu, when start                        */
/************************************************************************/
LRESULT XMainMenuMainFrame::LoadXMLProfiles()
{
    LRESULT hr = S_OK;    
    VARIANT_BOOL vbResult;
    IXMLDOMDocument *pXMLDOMDocument = NULL;
    IXMLDOMNode *pNodeGlobal = NULL;
    IXMLDOMNode *pNodePage = NULL;
    IXMLDOMNode *pNodeItem = NULL;
    IXMLDOMNode *pNodeDock = NULL;
    IXMLDOMNodeList *pNodePageList = NULL;
    IXMLDOMNodeList *pNodeItemList = NULL;
    long lPageCount = 0;
    long lListItemCount = 0;
    CString strText;
    VARIANT vSaveFilePath;
    VARIANT vSaveBackupFilePath;

    ::CoInitializeEx( NULL, COINIT_MULTITHREADED );
    VariantInit(&vSaveFilePath);
    V_VT(&vSaveFilePath) = VT_BSTR;
    vSaveFilePath.bstrVal = SysAllocString(MENU_XML);

    VariantInit(&vSaveBackupFilePath);
    V_VT(&vSaveBackupFilePath) = VT_BSTR;
    vSaveBackupFilePath.bstrVal = SysAllocString(MENU_BACKUP_XML);

    hr = CoCreateInstance(CLSID_DOMDocument, NULL, CLSCTX_INPROC_SERVER 
[解决办法]
 CLSCTX_LOCAL_SERVER, IID_IXMLDOMDocument, (LPVOID*)&pXMLDOMDocument);
    if (FAILED(hr))
    {
        goto Error;
    }

    hr = pXMLDOMDocument->load(vSaveFilePath, &vbResult);
    if (FAILED(hr) 
[解决办法]
 !vbResult)
    {
        hr = pXMLDOMDocument->load(vSaveBackupFilePath, &vbResult);
        if (FAILED(hr) 
[解决办法]
 !vbResult)
        {
            goto Error;
        }
    }

    hr = pXMLDOMDocument->selectSingleNode(ROOT_KEY, &pNodeGlobal);
    if (FAILED(hr) 
[解决办法]
 !pNodeGlobal)
    {
        goto Error;
    }

    //load page content

    hr = pNodeGlobal->selectNodes(PAGE_KEY, &pNodePageList);
    if (FAILED(hr) 
[解决办法]
 !pNodePageList)
    {
        goto Error;
    }

    hr = pNodePageList->get_length(&lPageCount);
    if (FAILED(hr) 
[解决办法]
 lPageCount <= 0)
    {
        goto Error;
    }
    
    for (long lPageIndex = 0; lPageIndex < lPageCount; lPageIndex++)
    {
        hr = pNodePageList->get_item(lPageIndex, &pNodePage);
        if (FAILED(hr) 
[解决办法]
 !pNodePage)
        {
            RELEASE_OBJ(pNodePage);
            continue;
        }
        strText = GetNodeText(pNodePage, PAGE_ID);
        int i = _wtoi(strText);
        strText.ReleaseBuffer();

        hr = pNodePage->selectNodes(PAGE_LISTITEM_KEY, &pNodeItemList);
        if (FAILED(hr) 
[解决办法]
 !pNodeItemList)
        {
            RELEASE_OBJ(pNodePage);
            RELEASE_OBJ(pNodeItemList);
            continue;
        }

        hr = pNodeItemList->get_length(&lListItemCount);
        if (FAILED(hr) 
[解决办法]
 lListItemCount <= 0)
        {
            RELEASE_OBJ(pNodePage);
            RELEASE_OBJ(pNodeItemList);
            continue;
        }

        for (long lListItemIndex = 0; lListItemIndex < lListItemCount; lListItemIndex++)
        {
            hr = pNodeItemList->get_item(lListItemIndex, &pNodeItem);
            if (FAILED(hr) 
[解决办法]
 !pNodeItem)

            {
                RELEASE_OBJ(pNodeItem);
                continue;
            }

            MainMenuItem plusData;
            plusData._EmptyItem = FALSE;

            strText = GetNodeText(pNodeItem, PAGE_LISTITEM_IMAGE);
            plusData._strImage = strText;
            strText.ReleaseBuffer();

            strText = GetNodeText(pNodeItem, PAGE_LISTITEM_TEXT);
            plusData._strText = strText;
            strText.ReleaseBuffer();

            strText = GetNodeText(pNodeItem, PAGE_LISTITEM_FILE);
            plusData._strFile = strText;
            strText.ReleaseBuffer();

            strText = GetNodeText(pNodeItem, PAGE_LISTITEM_PARAM);
            plusData._strParam = strText;
            strText.ReleaseBuffer();

            strText = GetNodeText(pNodeItem, PAGE_LISTITEM_SHELL);
            if (1 == _wtoi(strText))
            {
                plusData._bIsExeShell = TRUE;
            }
            else
            {
                plusData._bIsExeShell = FALSE;
            }
            strText.ReleaseBuffer();

            strText = GetNodeText(pNodeItem,PAGE_LISTITEM_EXE_TYPE);
            //plusData._iStartNotShell = _wtoi(strText);
            strText.ReleaseBuffer();

            //_mainList->AppendItem(plusData._strImage, plusData._strText, plusData);

            RELEASE_OBJ(pNodeItem);
        }
        RELEASE_OBJ(pNodePage);
        RELEASE_OBJ(pNodeItemList);
    }

    //load dock content
    hr = pNodeGlobal->selectSingleNode(DOCK_KEY, &pNodeDock);
    if (FAILED(hr) 
[解决办法]
 !pNodeDock)
    {
        goto Error;
    }

    {
        hr = pNodeDock->selectNodes(PAGE_LISTITEM_KEY, &pNodeItemList);
        if (FAILED(hr) 
[解决办法]
 !pNodeItemList)
        {
            RELEASE_OBJ(pNodeDock);
            RELEASE_OBJ(pNodeItemList);
            goto Error;
        }

        hr = pNodeItemList->get_length(&lListItemCount);
        if (FAILED(hr) 
[解决办法]
 lListItemCount <= 0)
        {
            RELEASE_OBJ(pNodeDock);
            RELEASE_OBJ(pNodeItemList);
            goto Error;
        }
        
        for (long lListItemIndex = 0; lListItemIndex < lListItemCount; lListItemIndex++)
        {
            hr = pNodeItemList->get_item(lListItemIndex, &pNodeItem);
            if (FAILED(hr) 
[解决办法]
 !pNodeItem)
            {
                RELEASE_OBJ(pNodeItem);
                continue;
            }

            MainMenuItem plusData;
            plusData._EmptyItem = FALSE;

            strText = GetNodeText(pNodeItem, PAGE_LISTITEM_IMAGE);
            plusData._strImage = strText;
            strText.ReleaseBuffer();

            strText = GetNodeText(pNodeItem, PAGE_LISTITEM_TEXT);
            plusData._strText = strText;
            strText.ReleaseBuffer();

            strText = GetNodeText(pNodeItem, PAGE_LISTITEM_FILE);
            plusData._strFile = strText;
            strText.ReleaseBuffer();

            strText = GetNodeText(pNodeItem, PAGE_LISTITEM_PARAM);
            plusData._strParam = strText;
            strText.ReleaseBuffer();

            strText = GetNodeText(pNodeItem, PAGE_LISTITEM_SHELL);
            if (1 == _wtoi(strText))
            {
                plusData._bIsExeShell = TRUE;
            }
            else
            {
                plusData._bIsExeShell = FALSE;
            }
            strText.ReleaseBuffer();

            strText = GetNodeText(pNodeItem,PAGE_LISTITEM_EXE_TYPE);
            //plusData._iStartNotShell = _wtoi(strText);
            strText.ReleaseBuffer();

            //_mainList->AppendItem(plusData._strImage, plusData._strText, plusData);
            RELEASE_OBJ(pNodeItem);
        }
        RELEASE_OBJ(pNodeItemList);
    }

    RELEASE_OBJ(pNodeDock);
    RELEASE_OBJ(pNodePageList);
    RELEASE_OBJ(pNodeGlobal);
    RELEASE_OBJ(pXMLDOMDocument);
    VariantClear(&vSaveFilePath);
    VariantClear(&vSaveBackupFilePath);
    ::CoUninitialize();
    return S_OK;

Error:    
    RELEASE_OBJ(pXMLDOMDocument);
    RELEASE_OBJ(pNodeGlobal);
    RELEASE_OBJ(pNodePage);
    RELEASE_OBJ(pNodeItem);
    RELEASE_OBJ(pNodePageList);
    RELEASE_OBJ(pNodeItemList);
    VariantClear(&vSaveFilePath);
    VariantClear(&vSaveBackupFilePath);
    ::CoUninitialize();
    return hr;
}