Sweden-Number/dlls/msxml3/node.c

932 lines
21 KiB
C

/*
* Node implementation
*
* Copyright 2005 Mike McCormack
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#define COBJMACROS
#include <stdarg.h>
#include <assert.h>
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winnls.h"
#include "ole2.h"
#include "msxml2.h"
#include "msxml_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(msxml);
#ifdef HAVE_LIBXML2
typedef struct _xmlnode
{
const struct IXMLDOMNodeVtbl *lpVtbl;
const struct IUnknownVtbl *lpInternalUnkVtbl;
IUnknown *pUnkOuter;
LONG ref;
xmlNodePtr node;
} xmlnode;
static inline xmlnode *impl_from_IXMLDOMNode( IXMLDOMNode *iface )
{
return (xmlnode *)((char*)iface - FIELD_OFFSET(xmlnode, lpVtbl));
}
static inline xmlnode *impl_from_InternalUnknown( IUnknown *iface )
{
return (xmlnode *)((char*)iface - FIELD_OFFSET(xmlnode, lpInternalUnkVtbl));
}
xmlNodePtr xmlNodePtr_from_domnode( IXMLDOMNode *iface, xmlElementType type )
{
xmlnode *This;
if ( !iface )
return NULL;
This = impl_from_IXMLDOMNode( iface );
if ( !This->node )
return NULL;
if ( type && This->node->type != type )
return NULL;
return This->node;
}
void attach_xmlnode( IXMLDOMNode *node, xmlNodePtr xml )
{
xmlnode *This = impl_from_IXMLDOMNode( node );
if(This->node)
xmldoc_release(This->node->doc);
This->node = xml;
if(This->node)
xmldoc_add_ref(This->node->doc);
return;
}
static HRESULT WINAPI xmlnode_QueryInterface(
IXMLDOMNode *iface,
REFIID riid,
void** ppvObject )
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
TRACE("%p %s %p\n", This, debugstr_guid(riid), ppvObject);
return IUnknown_QueryInterface(This->pUnkOuter, riid, ppvObject);
}
static ULONG WINAPI xmlnode_AddRef(
IXMLDOMNode *iface )
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
return IUnknown_AddRef(This->pUnkOuter);
}
static ULONG WINAPI xmlnode_Release(
IXMLDOMNode *iface )
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
return IUnknown_Release(This->pUnkOuter);
}
static HRESULT WINAPI xmlnode_GetTypeInfoCount(
IXMLDOMNode *iface,
UINT* pctinfo )
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_GetTypeInfo(
IXMLDOMNode *iface,
UINT iTInfo,
LCID lcid,
ITypeInfo** ppTInfo )
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_GetIDsOfNames(
IXMLDOMNode *iface,
REFIID riid,
LPOLESTR* rgszNames,
UINT cNames,
LCID lcid,
DISPID* rgDispId )
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_Invoke(
IXMLDOMNode *iface,
DISPID dispIdMember,
REFIID riid,
LCID lcid,
WORD wFlags,
DISPPARAMS* pDispParams,
VARIANT* pVarResult,
EXCEPINFO* pExcepInfo,
UINT* puArgErr )
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_get_nodeName(
IXMLDOMNode *iface,
BSTR* name)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
const xmlChar *str;
TRACE("%p\n", This );
if (!name)
return E_INVALIDARG;
if ( !This->node )
return E_FAIL;
switch( This->node->type )
{
case XML_TEXT_NODE:
str = (const xmlChar*) "#text";
break;
case XML_DOCUMENT_NODE:
str = (const xmlChar*) "#document";
break;
default:
str = This->node->name;
break;
}
*name = bstr_from_xmlChar( str );
if (!*name)
return S_FALSE;
return S_OK;
}
BSTR bstr_from_xmlChar( const xmlChar *buf )
{
DWORD len;
LPWSTR str;
BSTR bstr;
if ( !buf )
return NULL;
len = MultiByteToWideChar( CP_UTF8, 0, (LPCSTR) buf, -1, NULL, 0 );
str = (LPWSTR) HeapAlloc( GetProcessHeap(), 0, len * sizeof (WCHAR) );
if ( !str )
return NULL;
MultiByteToWideChar( CP_UTF8, 0, (LPCSTR) buf, -1, str, len );
bstr = SysAllocString( str );
HeapFree( GetProcessHeap(), 0, str );
return bstr;
}
static HRESULT WINAPI xmlnode_get_nodeValue(
IXMLDOMNode *iface,
VARIANT* value)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
HRESULT r = S_FALSE;
TRACE("%p %p\n", This, value);
V_BSTR(value) = NULL;
V_VT(value) = VT_NULL;
switch ( This->node->type )
{
case XML_ATTRIBUTE_NODE:
{
xmlChar *content = xmlNodeGetContent(This->node);
V_VT(value) = VT_BSTR;
V_BSTR(value) = bstr_from_xmlChar( content );
xmlFree(content);
r = S_OK;
break;
}
case XML_TEXT_NODE:
V_VT(value) = VT_BSTR;
V_BSTR(value) = bstr_from_xmlChar( This->node->content );
r = S_OK;
break;
case XML_ELEMENT_NODE:
case XML_DOCUMENT_NODE:
/* these seem to return NULL */
break;
case XML_PI_NODE:
default:
FIXME("node %p type %d\n", This, This->node->type);
}
TRACE("%p returned %s\n", This, debugstr_w( V_BSTR(value) ) );
return r;
}
static HRESULT WINAPI xmlnode_put_nodeValue(
IXMLDOMNode *iface,
VARIANT value)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_get_nodeType(
IXMLDOMNode *iface,
DOMNodeType* type)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
TRACE("%p %p\n", This, type);
assert( NODE_ELEMENT == XML_ELEMENT_NODE );
assert( NODE_NOTATION == XML_NOTATION_NODE );
*type = This->node->type;
return S_OK;
}
static HRESULT get_node(
xmlnode *This,
const char *name,
xmlNodePtr node,
IXMLDOMNode **out )
{
TRACE("%p->%s %p\n", This, name, node );
if ( !out )
return E_INVALIDARG;
*out = create_node( node );
if (!*out)
return S_FALSE;
return S_OK;
}
static HRESULT WINAPI xmlnode_get_parentNode(
IXMLDOMNode *iface,
IXMLDOMNode** parent)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
return get_node( This, "parent", This->node->parent, parent );
}
static HRESULT WINAPI xmlnode_get_childNodes(
IXMLDOMNode *iface,
IXMLDOMNodeList** childList)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
TRACE("%p %p\n", This, childList );
if ( !childList )
return E_INVALIDARG;
switch(This->node->type)
{
case XML_ELEMENT_NODE:
*childList = create_filtered_nodelist( This->node->children, (const xmlChar *)"*", FALSE );
break;
case XML_ATTRIBUTE_NODE:
*childList = create_filtered_nodelist( This->node->children, (const xmlChar *)"node()", FALSE );
break;
default:
FIXME("unhandled node type %d\n", This->node->type);
break;
}
if (!*childList)
return S_FALSE;
return S_OK;
}
static HRESULT WINAPI xmlnode_get_firstChild(
IXMLDOMNode *iface,
IXMLDOMNode** firstChild)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
return get_node( This, "firstChild", This->node->children, firstChild );
}
static HRESULT WINAPI xmlnode_get_lastChild(
IXMLDOMNode *iface,
IXMLDOMNode** lastChild)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
return get_node( This, "lastChild", This->node->last, lastChild );
}
static HRESULT WINAPI xmlnode_get_previousSibling(
IXMLDOMNode *iface,
IXMLDOMNode** previousSibling)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
return get_node( This, "previous", This->node->prev, previousSibling );
}
static HRESULT WINAPI xmlnode_get_nextSibling(
IXMLDOMNode *iface,
IXMLDOMNode** nextSibling)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
return get_node( This, "next", This->node->next, nextSibling );
}
static HRESULT WINAPI xmlnode_get_attributes(
IXMLDOMNode *iface,
IXMLDOMNamedNodeMap** attributeMap)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
TRACE("%p\n", This);
*attributeMap = create_nodemap( iface );
return S_OK;
}
static HRESULT WINAPI xmlnode_insertBefore(
IXMLDOMNode *iface,
IXMLDOMNode* newChild,
VARIANT refChild,
IXMLDOMNode** outNewChild)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
xmlNodePtr before_node, new_child_node;
IXMLDOMNode *before = NULL, *new;
HRESULT hr;
TRACE("(%p)->(%p,var,%p)\n",This,newChild,outNewChild);
if (!(newChild && outNewChild))
return E_INVALIDARG;
switch(V_VT(&refChild))
{
case VT_EMPTY:
case VT_NULL:
break;
case VT_UNKNOWN:
hr = IUnknown_QueryInterface(V_UNKNOWN(&refChild), &IID_IXMLDOMNode, (LPVOID)&before);
if(FAILED(hr)) return hr;
break;
case VT_DISPATCH:
hr = IDispatch_QueryInterface(V_DISPATCH(&refChild), &IID_IXMLDOMNode, (LPVOID)&before);
if(FAILED(hr)) return hr;
break;
default:
FIXME("refChild var type %x\n", V_VT(&refChild));
return E_FAIL;
}
IXMLDOMNode_QueryInterface(newChild, &IID_IXMLDOMNode, (LPVOID)&new);
new_child_node = impl_from_IXMLDOMNode(new)->node;
TRACE("new_child_node %p This->node %p\n", new_child_node, This->node);
if(before)
{
before_node = impl_from_IXMLDOMNode(before)->node;
xmlAddPrevSibling(before_node, new_child_node);
IXMLDOMNode_Release(before);
}
else
{
xmlAddChild(This->node, new_child_node);
}
IXMLDOMNode_Release(new);
IXMLDOMNode_AddRef(newChild);
*outNewChild = newChild;
TRACE("ret S_OK\n");
return S_OK;
}
static HRESULT WINAPI xmlnode_replaceChild(
IXMLDOMNode *iface,
IXMLDOMNode* newChild,
IXMLDOMNode* oldChild,
IXMLDOMNode** outOldChild)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_removeChild(
IXMLDOMNode *iface,
IXMLDOMNode* childNode,
IXMLDOMNode** oldChild)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
xmlNode *ancestor, *child_node_ptr;
HRESULT hr;
IXMLDOMNode *child;
TRACE("%p->(%p, %p)\n", This, childNode, oldChild);
*oldChild = NULL;
if(!childNode) return E_INVALIDARG;
hr = IXMLDOMNode_QueryInterface(childNode, &IID_IXMLDOMNode, (LPVOID)&child);
if(FAILED(hr))
return hr;
child_node_ptr = ancestor = impl_from_IXMLDOMNode(child)->node;
while(ancestor->parent)
{
if(ancestor->parent == This->node)
break;
ancestor = ancestor->parent;
}
if(!ancestor->parent)
{
WARN("childNode %p is not a child of %p\n", childNode, iface);
IXMLDOMNode_Release(child);
return E_INVALIDARG;
}
xmlUnlinkNode(child_node_ptr);
IXMLDOMNode_Release(child);
IXMLDOMNode_AddRef(childNode);
*oldChild = childNode;
return S_OK;
}
static HRESULT WINAPI xmlnode_appendChild(
IXMLDOMNode *iface,
IXMLDOMNode* newChild,
IXMLDOMNode** outNewChild)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
VARIANT var;
TRACE("(%p)->(%p,%p)\n", This, newChild, outNewChild);
VariantInit(&var);
return IXMLDOMNode_insertBefore(iface, newChild, var, outNewChild);
}
static HRESULT WINAPI xmlnode_hasChildNodes(
IXMLDOMNode *iface,
VARIANT_BOOL* hasChild)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
TRACE("%p\n", This);
if (!hasChild)
return E_INVALIDARG;
if (!This->node->children)
{
*hasChild = VARIANT_FALSE;
return S_FALSE;
}
*hasChild = VARIANT_TRUE;
return S_OK;
}
static HRESULT WINAPI xmlnode_get_ownerDocument(
IXMLDOMNode *iface,
IXMLDOMDocument** DOMDocument)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_cloneNode(
IXMLDOMNode *iface,
VARIANT_BOOL deep,
IXMLDOMNode** cloneRoot)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_get_nodeTypeString(
IXMLDOMNode *iface,
BSTR* xmlnodeType)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_get_text(
IXMLDOMNode *iface,
BSTR* text)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
BSTR str = NULL;
TRACE("%p\n", This);
if ( !text )
return E_INVALIDARG;
switch(This->node->type)
{
case XML_ELEMENT_NODE:
case XML_ATTRIBUTE_NODE:
{
xmlNodePtr child = This->node->children;
if ( child && child->type == XML_TEXT_NODE )
str = bstr_from_xmlChar( child->content );
break;
}
case XML_TEXT_NODE:
str = bstr_from_xmlChar( This->node->content );
break;
default:
FIXME("Unhandled node type %d\n", This->node->type);
}
TRACE("%p %s\n", This, debugstr_w(str) );
*text = str;
return S_OK;
}
static HRESULT WINAPI xmlnode_put_text(
IXMLDOMNode *iface,
BSTR text)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_get_specified(
IXMLDOMNode *iface,
VARIANT_BOOL* isSpecified)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_get_definition(
IXMLDOMNode *iface,
IXMLDOMNode** definitionNode)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_get_nodeTypedValue(
IXMLDOMNode *iface,
VARIANT* typedValue)
{
FIXME("ignoring data type\n");
return xmlnode_get_nodeValue(iface, typedValue);
}
static HRESULT WINAPI xmlnode_put_nodeTypedValue(
IXMLDOMNode *iface,
VARIANT typedValue)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_get_dataType(
IXMLDOMNode *iface,
VARIANT* dataTypeName)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_put_dataType(
IXMLDOMNode *iface,
BSTR dataTypeName)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_get_xml(
IXMLDOMNode *iface,
BSTR* xmlString)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_transformNode(
IXMLDOMNode *iface,
IXMLDOMNode* styleSheet,
BSTR* xmlString)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_selectNodes(
IXMLDOMNode *iface,
BSTR queryString,
IXMLDOMNodeList** resultList)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
xmlChar *str = NULL;
HRESULT r = E_FAIL;
TRACE("%p %s %p\n", This, debugstr_w(queryString), resultList );
str = xmlChar_from_wchar( queryString );
if (!str)
return r;
if( !This->node->children )
return S_FALSE;
*resultList = create_filtered_nodelist( This->node->children, str, FALSE );
HeapFree( GetProcessHeap(), 0, str );
return S_OK;
}
static HRESULT WINAPI xmlnode_selectSingleNode(
IXMLDOMNode *iface,
BSTR queryString,
IXMLDOMNode** resultNode)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
IXMLDOMNodeList *list;
HRESULT r;
TRACE("%p %s %p\n", This, debugstr_w(queryString), resultNode );
r = IXMLDOMNode_selectNodes(iface, queryString, &list);
if(r == S_OK)
{
r = IXMLDOMNodeList_nextNode(list, resultNode);
IXMLDOMNodeList_Release(list);
}
return r;
}
static HRESULT WINAPI xmlnode_get_parsed(
IXMLDOMNode *iface,
VARIANT_BOOL* isParsed)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_get_namespaceURI(
IXMLDOMNode *iface,
BSTR* namespaceURI)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_get_prefix(
IXMLDOMNode *iface,
BSTR* prefixString)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT WINAPI xmlnode_get_baseName(
IXMLDOMNode *iface,
BSTR* nameString)
{
xmlnode *This = impl_from_IXMLDOMNode( iface );
BSTR str = NULL;
HRESULT r = S_FALSE;
TRACE("%p %p\n", This, nameString );
if ( !nameString )
return E_INVALIDARG;
switch ( This->node->type )
{
case XML_ELEMENT_NODE:
case XML_ATTRIBUTE_NODE:
str = bstr_from_xmlChar( This->node->name );
r = S_OK;
break;
case XML_TEXT_NODE:
break;
default:
ERR("Unhandled type %d\n", This->node->type );
break;
}
TRACE("returning %08x str = %s\n", r, debugstr_w( str ) );
*nameString = str;
return r;
}
static HRESULT WINAPI xmlnode_transformNodeToObject(
IXMLDOMNode *iface,
IXMLDOMNode* stylesheet,
VARIANT outputObject)
{
FIXME("\n");
return E_NOTIMPL;
}
static const struct IXMLDOMNodeVtbl xmlnode_vtbl =
{
xmlnode_QueryInterface,
xmlnode_AddRef,
xmlnode_Release,
xmlnode_GetTypeInfoCount,
xmlnode_GetTypeInfo,
xmlnode_GetIDsOfNames,
xmlnode_Invoke,
xmlnode_get_nodeName,
xmlnode_get_nodeValue,
xmlnode_put_nodeValue,
xmlnode_get_nodeType,
xmlnode_get_parentNode,
xmlnode_get_childNodes,
xmlnode_get_firstChild,
xmlnode_get_lastChild,
xmlnode_get_previousSibling,
xmlnode_get_nextSibling,
xmlnode_get_attributes,
xmlnode_insertBefore,
xmlnode_replaceChild,
xmlnode_removeChild,
xmlnode_appendChild,
xmlnode_hasChildNodes,
xmlnode_get_ownerDocument,
xmlnode_cloneNode,
xmlnode_get_nodeTypeString,
xmlnode_get_text,
xmlnode_put_text,
xmlnode_get_specified,
xmlnode_get_definition,
xmlnode_get_nodeTypedValue,
xmlnode_put_nodeTypedValue,
xmlnode_get_dataType,
xmlnode_put_dataType,
xmlnode_get_xml,
xmlnode_transformNode,
xmlnode_selectNodes,
xmlnode_selectSingleNode,
xmlnode_get_parsed,
xmlnode_get_namespaceURI,
xmlnode_get_prefix,
xmlnode_get_baseName,
xmlnode_transformNodeToObject,
};
static HRESULT WINAPI Internal_QueryInterface(
IUnknown *iface,
REFIID riid,
void** ppvObject )
{
xmlnode *This = impl_from_InternalUnknown( iface );
TRACE("%p %s %p\n", iface, debugstr_guid(riid), ppvObject);
if ( IsEqualGUID( riid, &IID_IUnknown ))
*ppvObject = iface;
else if ( IsEqualGUID( riid, &IID_IDispatch ) ||
IsEqualGUID( riid, &IID_IXMLDOMNode ) )
*ppvObject = &This->lpVtbl;
else
{
FIXME("interface %s not implemented\n", debugstr_guid(riid));
*ppvObject = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef( (IUnknown*)*ppvObject );
return S_OK;
}
static ULONG WINAPI Internal_AddRef(
IUnknown *iface )
{
xmlnode *This = impl_from_InternalUnknown( iface );
return InterlockedIncrement( &This->ref );
}
static ULONG WINAPI Internal_Release(
IUnknown *iface )
{
xmlnode *This = impl_from_InternalUnknown( iface );
ULONG ref;
ref = InterlockedDecrement( &This->ref );
if ( ref == 0 )
{
if( This->node )
xmldoc_release( This->node->doc );
HeapFree( GetProcessHeap(), 0, This );
}
return ref;
}
static const struct IUnknownVtbl internal_unk_vtbl =
{
Internal_QueryInterface,
Internal_AddRef,
Internal_Release
};
IUnknown *create_basic_node( xmlNodePtr node, IUnknown *pUnkOuter )
{
xmlnode *This;
This = HeapAlloc( GetProcessHeap(), 0, sizeof *This );
if ( !This )
return NULL;
if(node)
xmldoc_add_ref( node->doc );
This->lpVtbl = &xmlnode_vtbl;
This->lpInternalUnkVtbl = &internal_unk_vtbl;
if(pUnkOuter)
This->pUnkOuter = pUnkOuter; /* Don't take a ref on outer Unknown */
else
This->pUnkOuter = (IUnknown *)&This->lpInternalUnkVtbl;
This->ref = 1;
This->node = node;
return (IUnknown*)&This->lpInternalUnkVtbl;
}
IXMLDOMNode *create_node( xmlNodePtr node )
{
IUnknown *pUnk;
IXMLDOMNode *ret;
HRESULT hr;
if ( !node )
return NULL;
TRACE("type %d\n", node->type);
switch(node->type)
{
case XML_ELEMENT_NODE:
pUnk = create_element( node, NULL );
break;
case XML_ATTRIBUTE_NODE:
pUnk = create_attribute( node );
break;
case XML_TEXT_NODE:
pUnk = create_text( node );
break;
case XML_COMMENT_NODE:
pUnk = create_comment( node );
break;
case XML_DOCUMENT_NODE:
ERR("shouldn't be here!\n");
return NULL;
default:
FIXME("only creating basic node for type %d\n", node->type);
pUnk = create_basic_node( node, NULL );
}
hr = IUnknown_QueryInterface(pUnk, &IID_IXMLDOMNode, (LPVOID*)&ret);
IUnknown_Release(pUnk);
if(FAILED(hr)) return NULL;
return ret;
}
#endif