dlls/msxml3/pi.c

   1 /*
   2  *    DOM processing instruction node implementation
   3  *
   4  * Copyright 2006 Huw Davies
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define COBJMACROS
  22
  23 #include "config.h"
  24
  25 #include <stdarg.h>
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winuser.h"
  29 #include "ole2.h"
  30 #include "msxml2.h"
  31
  32 #include "msxml_private.h"
  33
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(msxml);
  37
  38 #ifdef HAVE_LIBXML2
  39
  40 typedef struct _dom_pi
  41 {
  42     const struct IXMLDOMProcessingInstructionVtbl *lpVtbl;
  43     LONG ref;
  44     IUnknown *node_unk;
  45     IXMLDOMNode *node;
  46 } dom_pi;
  47
  48 static inline dom_pi *impl_from_IXMLDOMProcessingInstruction( IXMLDOMProcessingInstruction *iface )
  49 {
  50     return (dom_pi *)((char*)iface - FIELD_OFFSET(dom_pi, lpVtbl));
  51 }
  52
  53 static HRESULT WINAPI dom_pi_QueryInterface(
  54     IXMLDOMProcessingInstruction *iface,
  55     REFIID riid,
  56     void** ppvObject )
  57 {
  58     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
  59     TRACE("%p %s %p\n", This, debugstr_guid(riid), ppvObject);
  60
  61     if ( IsEqualGUID( riid, &IID_IXMLDOMProcessingInstruction ) ||
  62          IsEqualGUID( riid, &IID_IDispatch ) ||
  63          IsEqualGUID( riid, &IID_IUnknown ) )
  64     {
  65         *ppvObject = iface;
  66     }
  67     else if ( IsEqualGUID( riid, &IID_IXMLDOMNode ) )
  68     {
  69         return IUnknown_QueryInterface(This->node_unk, riid, ppvObject);
  70     }
  71     else
  72     {
  73         FIXME("Unsupported interface %s\n", debugstr_guid(riid));
  74         return E_NOINTERFACE;
  75     }
  76
  77     IXMLDOMProcessingInstruction_AddRef( iface );
  78
  79     return S_OK;
  80 }
  81
  82 static ULONG WINAPI dom_pi_AddRef(
  83     IXMLDOMProcessingInstruction *iface )
  84 {
  85     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
  86     return InterlockedIncrement( &This->ref );
  87 }
  88
  89 static ULONG WINAPI dom_pi_Release(
  90     IXMLDOMProcessingInstruction *iface )
  91 {
  92     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
  93     ULONG ref;
  94
  95     ref = InterlockedDecrement( &This->ref );
  96     if ( ref == 0 )
  97     {
  98         IUnknown_Release( This->node_unk );
  99         HeapFree( GetProcessHeap(), 0, This );
 100     }
 101
 102     return ref;
 103 }
 104
 105 static HRESULT WINAPI dom_pi_GetTypeInfoCount(
 106     IXMLDOMProcessingInstruction *iface,
 107     UINT* pctinfo )
 108 {
 109     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 110
 111     TRACE("(%p)->(%p)\n", This, pctinfo);
 112
 113     *pctinfo = 1;
 114
 115     return S_OK;
 116 }
 117
 118 static HRESULT WINAPI dom_pi_GetTypeInfo(
 119     IXMLDOMProcessingInstruction *iface,
 120     UINT iTInfo, LCID lcid,
 121     ITypeInfo** ppTInfo )
 122 {
 123     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 124     HRESULT hr;
 125
 126     TRACE("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 127
 128     hr = get_typeinfo(IXMLDOMProcessingInstruction_tid, ppTInfo);
 129
 130     return hr;
 131 }
 132
 133 static HRESULT WINAPI dom_pi_GetIDsOfNames(
 134     IXMLDOMProcessingInstruction *iface,
 135     REFIID riid, LPOLESTR* rgszNames,
 136     UINT cNames, LCID lcid, DISPID* rgDispId )
 137 {
 138     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 139     ITypeInfo *typeinfo;
 140     HRESULT hr;
 141
 142     TRACE("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 143           lcid, rgDispId);
 144
 145     if(!rgszNames || cNames == 0 || !rgDispId)
 146         return E_INVALIDARG;
 147
 148     hr = get_typeinfo(IXMLDOMProcessingInstruction_tid, &typeinfo);
 149     if(SUCCEEDED(hr))
 150     {
 151         hr = ITypeInfo_GetIDsOfNames(typeinfo, rgszNames, cNames, rgDispId);
 152         ITypeInfo_Release(typeinfo);
 153     }
 154
 155     return hr;
 156 }
 157
 158 static HRESULT WINAPI dom_pi_Invoke(
 159     IXMLDOMProcessingInstruction *iface,
 160     DISPID dispIdMember, REFIID riid, LCID lcid,
 161     WORD wFlags, DISPPARAMS* pDispParams, VARIANT* pVarResult,
 162     EXCEPINFO* pExcepInfo, UINT* puArgErr )
 163 {
 164     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 165     ITypeInfo *typeinfo;
 166     HRESULT hr;
 167
 168     TRACE("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 169           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 170
 171     hr = get_typeinfo(IXMLDOMProcessingInstruction_tid, &typeinfo);
 172     if(SUCCEEDED(hr))
 173     {
 174        hr = ITypeInfo_Invoke(typeinfo, &(This->lpVtbl), dispIdMember, wFlags, pDispParams,
 175                 pVarResult, pExcepInfo, puArgErr);
 176         ITypeInfo_Release(typeinfo);
 177     }
 178
 179     return hr;
 180 }
 181
 182 static HRESULT WINAPI dom_pi_get_nodeName(
 183     IXMLDOMProcessingInstruction *iface,
 184     BSTR* p )
 185 {
 186     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 187     return IXMLDOMNode_get_nodeName( This->node, p );
 188 }
 189
 190 static HRESULT WINAPI dom_pi_get_nodeValue(
 191     IXMLDOMProcessingInstruction *iface,
 192     VARIANT* var1 )
 193 {
 194     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 195     return IXMLDOMNode_get_nodeValue( This->node, var1 );
 196 }
 197
 198 static HRESULT WINAPI dom_pi_put_nodeValue(
 199     IXMLDOMProcessingInstruction *iface,
 200     VARIANT var1 )
 201 {
 202     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 203     return IXMLDOMNode_put_nodeValue( This->node, var1 );
 204 }
 205
 206 static HRESULT WINAPI dom_pi_get_nodeType(
 207     IXMLDOMProcessingInstruction *iface,
 208     DOMNodeType* domNodeType )
 209 {
 210     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 211     return IXMLDOMNode_get_nodeType( This->node, domNodeType );
 212 }
 213
 214 static HRESULT WINAPI dom_pi_get_parentNode(
 215     IXMLDOMProcessingInstruction *iface,
 216     IXMLDOMNode** parent )
 217 {
 218     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 219     return IXMLDOMNode_get_parentNode( This->node, parent );
 220 }
 221
 222 static HRESULT WINAPI dom_pi_get_childNodes(
 223     IXMLDOMProcessingInstruction *iface,
 224     IXMLDOMNodeList** outList)
 225 {
 226     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 227     return IXMLDOMNode_get_childNodes( This->node, outList );
 228 }
 229
 230 static HRESULT WINAPI dom_pi_get_firstChild(
 231     IXMLDOMProcessingInstruction *iface,
 232     IXMLDOMNode** domNode)
 233 {
 234     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 235     return IXMLDOMNode_get_firstChild( This->node, domNode );
 236 }
 237
 238 static HRESULT WINAPI dom_pi_get_lastChild(
 239     IXMLDOMProcessingInstruction *iface,
 240     IXMLDOMNode** domNode)
 241 {
 242     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 243     return IXMLDOMNode_get_lastChild( This->node, domNode );
 244 }
 245
 246 static HRESULT WINAPI dom_pi_get_previousSibling(
 247     IXMLDOMProcessingInstruction *iface,
 248     IXMLDOMNode** domNode)
 249 {
 250     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 251     return IXMLDOMNode_get_previousSibling( This->node, domNode );
 252 }
 253
 254 static HRESULT WINAPI dom_pi_get_nextSibling(
 255     IXMLDOMProcessingInstruction *iface,
 256     IXMLDOMNode** domNode)
 257 {
 258     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 259     return IXMLDOMNode_get_nextSibling( This->node, domNode );
 260 }
 261
 262 static HRESULT WINAPI dom_pi_get_attributes(
 263     IXMLDOMProcessingInstruction *iface,
 264     IXMLDOMNamedNodeMap** attributeMap)
 265 {
 266     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 267     return IXMLDOMNode_get_attributes( This->node, attributeMap );
 268 }
 269
 270 static HRESULT WINAPI dom_pi_insertBefore(
 271     IXMLDOMProcessingInstruction *iface,
 272     IXMLDOMNode* newNode, VARIANT var1,
 273     IXMLDOMNode** outOldNode)
 274 {
 275     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 276     return IXMLDOMNode_insertBefore( This->node, newNode, var1, outOldNode );
 277 }
 278
 279 static HRESULT WINAPI dom_pi_replaceChild(
 280     IXMLDOMProcessingInstruction *iface,
 281     IXMLDOMNode* newNode,
 282     IXMLDOMNode* oldNode,
 283     IXMLDOMNode** outOldNode)
 284 {
 285     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 286     return IXMLDOMNode_replaceChild( This->node, newNode, oldNode, outOldNode );
 287 }
 288
 289 static HRESULT WINAPI dom_pi_removeChild(
 290     IXMLDOMProcessingInstruction *iface,
 291     IXMLDOMNode* domNode, IXMLDOMNode** oldNode)
 292 {
 293     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 294     return IXMLDOMNode_removeChild( This->node, domNode, oldNode );
 295 }
 296
 297 static HRESULT WINAPI dom_pi_appendChild(
 298     IXMLDOMProcessingInstruction *iface,
 299     IXMLDOMNode* newNode, IXMLDOMNode** outNewNode)
 300 {
 301     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 302     return IXMLDOMNode_appendChild( This->node, newNode, outNewNode );
 303 }
 304
 305 static HRESULT WINAPI dom_pi_hasChildNodes(
 306     IXMLDOMProcessingInstruction *iface,
 307     VARIANT_BOOL* pbool)
 308 {
 309     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 310     return IXMLDOMNode_hasChildNodes( This->node, pbool );
 311 }
 312
 313 static HRESULT WINAPI dom_pi_get_ownerDocument(
 314     IXMLDOMProcessingInstruction *iface,
 315     IXMLDOMDocument** domDocument)
 316 {
 317     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 318     return IXMLDOMNode_get_ownerDocument( This->node, domDocument );
 319 }
 320
 321 static HRESULT WINAPI dom_pi_cloneNode(
 322     IXMLDOMProcessingInstruction *iface,
 323     VARIANT_BOOL pbool, IXMLDOMNode** outNode)
 324 {
 325     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 326     return IXMLDOMNode_cloneNode( This->node, pbool, outNode );
 327 }
 328
 329 static HRESULT WINAPI dom_pi_get_nodeTypeString(
 330     IXMLDOMProcessingInstruction *iface,
 331     BSTR* p)
 332 {
 333     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 334     return IXMLDOMNode_get_nodeTypeString( This->node, p );
 335 }
 336
 337 static HRESULT WINAPI dom_pi_get_text(
 338     IXMLDOMProcessingInstruction *iface,
 339     BSTR* p)
 340 {
 341     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 342     return IXMLDOMNode_get_text( This->node, p );
 343 }
 344
 345 static HRESULT WINAPI dom_pi_put_text(
 346     IXMLDOMProcessingInstruction *iface,
 347     BSTR p)
 348 {
 349     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 350     return IXMLDOMNode_put_text( This->node, p );
 351 }
 352
 353 static HRESULT WINAPI dom_pi_get_specified(
 354     IXMLDOMProcessingInstruction *iface,
 355     VARIANT_BOOL* pbool)
 356 {
 357     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 358     return IXMLDOMNode_get_specified( This->node, pbool );
 359 }
 360
 361 static HRESULT WINAPI dom_pi_get_definition(
 362     IXMLDOMProcessingInstruction *iface,
 363     IXMLDOMNode** domNode)
 364 {
 365     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 366     return IXMLDOMNode_get_definition( This->node, domNode );
 367 }
 368
 369 static HRESULT WINAPI dom_pi_get_nodeTypedValue(
 370     IXMLDOMProcessingInstruction *iface,
 371     VARIANT* var1)
 372 {
 373     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 374     return IXMLDOMNode_get_nodeTypedValue( This->node, var1 );
 375 }
 376
 377 static HRESULT WINAPI dom_pi_put_nodeTypedValue(
 378     IXMLDOMProcessingInstruction *iface,
 379     VARIANT var1)
 380 {
 381     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 382     return IXMLDOMNode_put_nodeTypedValue( This->node, var1 );
 383 }
 384
 385 static HRESULT WINAPI dom_pi_get_dataType(
 386     IXMLDOMProcessingInstruction *iface,
 387     VARIANT* var1)
 388 {
 389     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 390     return IXMLDOMNode_get_dataType( This->node, var1 );
 391 }
 392
 393 static HRESULT WINAPI dom_pi_put_dataType(
 394     IXMLDOMProcessingInstruction *iface,
 395     BSTR p)
 396 {
 397     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 398     return IXMLDOMNode_put_dataType( This->node, p );
 399 }
 400
 401 static HRESULT WINAPI dom_pi_get_xml(
 402     IXMLDOMProcessingInstruction *iface,
 403     BSTR* p)
 404 {
 405     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 406     return IXMLDOMNode_get_xml( This->node, p );
 407 }
 408
 409 static HRESULT WINAPI dom_pi_transformNode(
 410     IXMLDOMProcessingInstruction *iface,
 411     IXMLDOMNode* domNode, BSTR* p)
 412 {
 413     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 414     return IXMLDOMNode_transformNode( This->node, domNode, p );
 415 }
 416
 417 static HRESULT WINAPI dom_pi_selectNodes(
 418     IXMLDOMProcessingInstruction *iface,
 419     BSTR p, IXMLDOMNodeList** outList)
 420 {
 421     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 422     return IXMLDOMNode_selectNodes( This->node, p, outList );
 423 }
 424
 425 static HRESULT WINAPI dom_pi_selectSingleNode(
 426     IXMLDOMProcessingInstruction *iface,
 427     BSTR p, IXMLDOMNode** outNode)
 428 {
 429     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 430     return IXMLDOMNode_selectSingleNode( This->node, p, outNode );
 431 }
 432
 433 static HRESULT WINAPI dom_pi_get_parsed(
 434     IXMLDOMProcessingInstruction *iface,
 435     VARIANT_BOOL* pbool)
 436 {
 437     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 438     return IXMLDOMNode_get_parsed( This->node, pbool );
 439 }
 440
 441 static HRESULT WINAPI dom_pi_get_namespaceURI(
 442     IXMLDOMProcessingInstruction *iface,
 443     BSTR* p)
 444 {
 445     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 446     return IXMLDOMNode_get_namespaceURI( This->node, p );
 447 }
 448
 449 static HRESULT WINAPI dom_pi_get_prefix(
 450     IXMLDOMProcessingInstruction *iface,
 451     BSTR* p)
 452 {
 453     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 454     return IXMLDOMNode_get_prefix( This->node, p );
 455 }
 456
 457 static HRESULT WINAPI dom_pi_get_baseName(
 458     IXMLDOMProcessingInstruction *iface,
 459     BSTR* p)
 460 {
 461     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 462     return IXMLDOMNode_get_baseName( This->node, p );
 463 }
 464
 465 static HRESULT WINAPI dom_pi_transformNodeToObject(
 466     IXMLDOMProcessingInstruction *iface,
 467     IXMLDOMNode* domNode, VARIANT var1)
 468 {
 469     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 470     return IXMLDOMNode_transformNodeToObject( This->node, domNode, var1 );
 471 }
 472
 473 static HRESULT WINAPI dom_pi_get_target(
 474     IXMLDOMProcessingInstruction *iface,
 475     BSTR *p)
 476 {
 477     /* target returns the same value as nodeName property */
 478     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 479     return IXMLDOMNode_get_nodeName( This->node, p );
 480 }
 481
 482 static HRESULT WINAPI dom_pi_get_data(
 483     IXMLDOMProcessingInstruction *iface,
 484     BSTR *p)
 485 {
 486     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 487     HRESULT hr = E_FAIL;
 488     VARIANT vRet;
 489
 490     if(!p)
 491         return E_INVALIDARG;
 492
 493     hr = IXMLDOMNode_get_nodeValue( This->node, &vRet );
 494     if(hr == S_OK)
 495     {
 496         *p = V_BSTR(&vRet);
 497     }
 498
 499     return hr;
 500 }
 501
 502 static HRESULT WINAPI dom_pi_put_data(
 503     IXMLDOMProcessingInstruction *iface,
 504     BSTR data)
 505 {
 506     dom_pi *This = impl_from_IXMLDOMProcessingInstruction( iface );
 507     HRESULT hr = E_FAIL;
 508     VARIANT val;
 509     BSTR sTarget;
 510     static WCHAR szXML[] = {'x','m','l',0};
 511
 512     TRACE("%p %s\n", This, debugstr_w(data) );
 513
 514     /* Cannot set data to a PI node whos target is 'xml' */
 515     hr = dom_pi_get_nodeName(iface, &sTarget);
 516     if(hr == S_OK)
 517     {
 518         if(lstrcmpW( sTarget, szXML) == 0)
 519         {
 520             SysFreeString(sTarget);
 521             return E_FAIL;
 522         }
 523
 524         SysFreeString(sTarget);
 525     }
 526
 527     V_VT(&val) = VT_BSTR;
 528     V_BSTR(&val) = data;
 529
 530     hr = IXMLDOMNode_put_nodeValue( This->node, val );
 531
 532     return hr;
 533 }
 534
 535 static const struct IXMLDOMProcessingInstructionVtbl dom_pi_vtbl =
 536 {
 537     dom_pi_QueryInterface,
 538     dom_pi_AddRef,
 539     dom_pi_Release,
 540     dom_pi_GetTypeInfoCount,
 541     dom_pi_GetTypeInfo,
 542     dom_pi_GetIDsOfNames,
 543     dom_pi_Invoke,
 544     dom_pi_get_nodeName,
 545     dom_pi_get_nodeValue,
 546     dom_pi_put_nodeValue,
 547     dom_pi_get_nodeType,
 548     dom_pi_get_parentNode,
 549     dom_pi_get_childNodes,
 550     dom_pi_get_firstChild,
 551     dom_pi_get_lastChild,
 552     dom_pi_get_previousSibling,
 553     dom_pi_get_nextSibling,
 554     dom_pi_get_attributes,
 555     dom_pi_insertBefore,
 556     dom_pi_replaceChild,
 557     dom_pi_removeChild,
 558     dom_pi_appendChild,
 559     dom_pi_hasChildNodes,
 560     dom_pi_get_ownerDocument,
 561     dom_pi_cloneNode,
 562     dom_pi_get_nodeTypeString,
 563     dom_pi_get_text,
 564     dom_pi_put_text,
 565     dom_pi_get_specified,
 566     dom_pi_get_definition,
 567     dom_pi_get_nodeTypedValue,
 568     dom_pi_put_nodeTypedValue,
 569     dom_pi_get_dataType,
 570     dom_pi_put_dataType,
 571     dom_pi_get_xml,
 572     dom_pi_transformNode,
 573     dom_pi_selectNodes,
 574     dom_pi_selectSingleNode,
 575     dom_pi_get_parsed,
 576     dom_pi_get_namespaceURI,
 577     dom_pi_get_prefix,
 578     dom_pi_get_baseName,
 579     dom_pi_transformNodeToObject,
 580
 581     dom_pi_get_target,
 582     dom_pi_get_data,
 583     dom_pi_put_data
 584 };
 585
 586 IUnknown* create_pi( xmlNodePtr pi )
 587 {
 588     dom_pi *This;
 589     HRESULT hr;
 590
 591     This = HeapAlloc( GetProcessHeap(), 0, sizeof *This );
 592     if ( !This )
 593         return NULL;
 594
 595     This->lpVtbl = &dom_pi_vtbl;
 596     This->ref = 1;
 597
 598     This->node_unk = create_basic_node( pi, (IUnknown*)&This->lpVtbl );
 599     if(!This->node_unk)
 600     {
 601         HeapFree(GetProcessHeap(), 0, This);
 602         return NULL;
 603     }
 604
 605     hr = IUnknown_QueryInterface(This->node_unk, &IID_IXMLDOMNode, (LPVOID*)&This->node);
 606     if(FAILED(hr))
 607     {
 608         IUnknown_Release(This->node_unk);
 609         HeapFree( GetProcessHeap(), 0, This );
 610         return NULL;
 611     }
 612     /* The ref on This->node is actually looped back into this object, so release it */
 613     IXMLDOMNode_Release(This->node);
 614
 615     return (IUnknown*) &This->lpVtbl;
 616 }
 617
 618 #endif