C++ (Cpp) IXMLDOMNode::QueryInterface Examples

Example #1

File: toolspage.cpp Project: Moteesh/reactos

static HRESULT
ParseToolsList(IXMLDOMDocument* pXMLDom, BOOL bIsStandard)
{
    static const _bstr_t XMLFileTag(L"MSCONFIGTOOLFILE");
    static const _bstr_t XMLToolsTag(L"MSCONFIGTOOLS");

    HRESULT hr = S_OK;

    IXMLDOMNode    *pIterator = NULL, *pTmp = NULL;
    IXMLDOMElement* pEl       = NULL;
    DOMNodeType     type;
    _bstr_t         tagName;

    if (!pXMLDom)
        return E_POINTER; // E_INVALIDARG

    pXMLDom->get_documentElement(&pEl);

    pEl->get_tagName(&tagName.GetBSTR());
    _wcsupr(tagName);
    if (tagName == XMLFileTag)
    {
        pEl->get_firstChild(&pIterator); SAFE_RELEASE(pEl);
        while (pIterator)
        {
            pIterator->get_nodeType(&type);
            if (type == NODE_ELEMENT)
            {
                pIterator->QueryInterface(IID_PPV_ARG(IXMLDOMElement, &pEl) /* IID_PPV_ARGS(&pEl) */);

                pEl->get_tagName(&tagName.GetBSTR());
                _wcsupr(tagName);
                if (tagName == XMLToolsTag)
                {
                    pEl->get_firstChild(&pIterator); SAFE_RELEASE(pEl);
                    while (pIterator)
                    {
                        pIterator->QueryInterface(IID_PPV_ARG(IXMLDOMElement, &pEl) /* IID_PPV_ARGS(&pEl) */);
                        AddTool(pEl, bIsStandard);
                        SAFE_RELEASE(pEl);

                        pIterator->get_nextSibling(&pTmp);
                        SAFE_RELEASE(pIterator); pIterator = pTmp;
                    }
                    // SAFE_RELEASE(pIterator);

                    break;
                }

                SAFE_RELEASE(pEl);
            }

            pIterator->get_nextSibling(&pTmp);
            SAFE_RELEASE(pIterator); pIterator = pTmp;
        }
        // SAFE_RELEASE(pIterator);
    }
    else if (tagName == XMLToolsTag)
    {
        pEl->get_firstChild(&pIterator); SAFE_RELEASE(pEl);
        while (pIterator)
        {
            pIterator->QueryInterface(IID_PPV_ARG(IXMLDOMElement, &pEl) /* IID_PPV_ARGS(&pEl) */);
            AddTool(pEl, bIsStandard);
            SAFE_RELEASE(pEl);

            pIterator->get_nextSibling(&pTmp);
            SAFE_RELEASE(pIterator); pIterator = pTmp;
        }
        // SAFE_RELEASE(pIterator);
    }

    SAFE_RELEASE(pEl);

    return hr;
}