git.oblomov.eu Git - wine/blob - dlls/oledb32/datainit.c

   1 /*
   2  * Copyright (C) 2012 Alistair Leslie-Hughes
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18 #include <stdarg.h>
  19
  20 #define COBJMACROS
  21 #define NONAMELESSUNION
  22 #define NONAMELESSSTRUCT
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winnls.h"
  27 #include "ole2.h"
  28 #include "msdasc.h"
  29 #include "oledberr.h"
  30 #include "initguid.h"
  31 #include "oledb_private.h"
  32
  33 #include "wine/debug.h"
  34 #include "wine/unicode.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(oledb);
  37
  38 DEFINE_GUID(DBPROPSET_DBINIT, 0xc8b522bc, 0x5cf3, 0x11ce, 0xad, 0xe5, 0x00, 0xaa, 0x00, 0x44, 0x77, 0x3d);
  39
  40 typedef struct datainit
  41 {
  42     IDataInitialize IDataInitialize_iface;
  43
  44     LONG ref;
  45 } datainit;
  46
  47 static inline datainit *impl_from_IDataInitialize(IDataInitialize *iface)
  48 {
  49     return CONTAINING_RECORD(iface, datainit, IDataInitialize_iface);
  50 }
  51
  52 typedef struct
  53 {
  54     IDBInitialize IDBInitialize_iface;
  55     IDBProperties IDBProperties_iface;
  56
  57     LONG ref;
  58 } dbinit;
  59
  60 static inline dbinit *impl_from_IDBInitialize(IDBInitialize *iface)
  61 {
  62     return CONTAINING_RECORD(iface, dbinit, IDBInitialize_iface);
  63 }
  64
  65 static inline dbinit *impl_from_IDBProperties(IDBProperties *iface)
  66 {
  67     return CONTAINING_RECORD(iface, dbinit, IDBProperties_iface);
  68 }
  69
  70 static HRESULT WINAPI dbprops_QueryInterface(IDBProperties *iface, REFIID riid, void **ppvObject)
  71 {
  72     dbinit *This = impl_from_IDBProperties(iface);
  73
  74     return IDBInitialize_QueryInterface(&This->IDBInitialize_iface, riid, ppvObject);
  75 }
  76
  77 static ULONG WINAPI dbprops_AddRef(IDBProperties *iface)
  78 {
  79     dbinit *This = impl_from_IDBProperties(iface);
  80
  81     return IDBInitialize_AddRef(&This->IDBInitialize_iface);
  82 }
  83
  84 static ULONG WINAPI dbprops_Release(IDBProperties *iface)
  85 {
  86     dbinit *This = impl_from_IDBProperties(iface);
  87
  88     return IDBInitialize_Release(&This->IDBInitialize_iface);
  89 }
  90
  91 static HRESULT WINAPI dbprops_GetProperties(IDBProperties *iface, ULONG cPropertyIDSets,
  92             const DBPROPIDSET rgPropertyIDSets[], ULONG *pcPropertySets, DBPROPSET **prgPropertySets)
  93 {
  94     dbinit *This = impl_from_IDBProperties(iface);
  95
  96     FIXME("(%p)->(%d %p %p %p)\n", This, cPropertyIDSets, rgPropertyIDSets, pcPropertySets, prgPropertySets);
  97
  98     return E_NOTIMPL;
  99 }
 100
 101 static HRESULT WINAPI dbprops_GetPropertyInfo(IDBProperties *iface, ULONG cPropertyIDSets,
 102             const DBPROPIDSET rgPropertyIDSets[], ULONG *pcPropertyInfoSets,
 103             DBPROPINFOSET **prgPropertyInfoSets, OLECHAR **ppDescBuffer)
 104 {
 105     dbinit *This = impl_from_IDBProperties(iface);
 106
 107     FIXME("(%p)->(%d %p %p %p %p)\n", This, cPropertyIDSets, rgPropertyIDSets, pcPropertyInfoSets,
 108                 prgPropertyInfoSets, ppDescBuffer);
 109
 110     return E_NOTIMPL;
 111 }
 112
 113 static HRESULT WINAPI dbprops_SetProperties(IDBProperties *iface, ULONG cPropertySets,
 114             DBPROPSET rgPropertySets[])
 115 {
 116     dbinit *This = impl_from_IDBProperties(iface);
 117
 118     FIXME("(%p)->(%d %p)\n", This, cPropertySets, rgPropertySets);
 119
 120     return E_NOTIMPL;
 121 }
 122
 123 static const struct IDBPropertiesVtbl dbprops_vtbl =
 124 {
 125     dbprops_QueryInterface,
 126     dbprops_AddRef,
 127     dbprops_Release,
 128     dbprops_GetProperties,
 129     dbprops_GetPropertyInfo,
 130     dbprops_SetProperties
 131 };
 132
 133 static HRESULT WINAPI dbinit_QueryInterface(IDBInitialize *iface, REFIID riid, void **obj)
 134 {
 135     dbinit *This = impl_from_IDBInitialize(iface);
 136     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), obj);
 137
 138     *obj = NULL;
 139
 140     if(IsEqualIID(riid, &IID_IUnknown) ||
 141        IsEqualIID(riid, &IID_IDBInitialize))
 142     {
 143         *obj = iface;
 144     }
 145     else if(IsEqualIID(riid, &IID_IDBProperties))
 146     {
 147         *obj = &This->IDBProperties_iface;
 148     }
 149     else
 150     {
 151         FIXME("interface %s not implemented\n", debugstr_guid(riid));
 152         return E_NOINTERFACE;
 153     }
 154
 155     IDBInitialize_AddRef(iface);
 156     return S_OK;
 157 }
 158
 159 static ULONG WINAPI dbinit_AddRef(IDBInitialize *iface)
 160 {
 161     dbinit *This = impl_from_IDBInitialize(iface);
 162     TRACE("(%p)\n", This);
 163
 164     return InterlockedIncrement(&This->ref);
 165 }
 166
 167 static ULONG WINAPI dbinit_Release(IDBInitialize *iface)
 168 {
 169     dbinit *This = impl_from_IDBInitialize(iface);
 170     LONG ref;
 171
 172     TRACE("(%p)\n", This);
 173
 174     ref = InterlockedDecrement(&This->ref);
 175     if(ref == 0)
 176     {
 177         HeapFree(GetProcessHeap(), 0, This);
 178     }
 179
 180     return ref;
 181 }
 182
 183 static HRESULT WINAPI dbinit_Initialize(IDBInitialize *iface)
 184 {
 185     dbinit *This = impl_from_IDBInitialize(iface);
 186
 187     FIXME("(%p) stub\n", This);
 188
 189     return S_OK;
 190 }
 191
 192 static HRESULT WINAPI dbinit_Uninitialize(IDBInitialize *iface)
 193 {
 194     dbinit *This = impl_from_IDBInitialize(iface);
 195
 196     FIXME("(%p) stub\n", This);
 197
 198     return S_OK;
 199 }
 200
 201 static const IDBInitializeVtbl dbinit_vtbl =
 202 {
 203     dbinit_QueryInterface,
 204     dbinit_AddRef,
 205     dbinit_Release,
 206     dbinit_Initialize,
 207     dbinit_Uninitialize
 208 };
 209
 210 static HRESULT create_db_init(void **obj)
 211 {
 212     dbinit *This;
 213
 214     TRACE("()\n");
 215
 216     *obj = NULL;
 217
 218     This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
 219     if(!This) return E_OUTOFMEMORY;
 220
 221     This->IDBInitialize_iface.lpVtbl = &dbinit_vtbl;
 222     This->IDBProperties_iface.lpVtbl = &dbprops_vtbl;
 223     This->ref = 1;
 224
 225     *obj = &This->IDBInitialize_iface;
 226
 227     return S_OK;
 228 }
 229
 230 static HRESULT WINAPI datainit_QueryInterface(IDataInitialize *iface, REFIID riid, void **obj)
 231 {
 232     datainit *This = impl_from_IDataInitialize(iface);
 233     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), obj);
 234
 235     *obj = NULL;
 236
 237     if(IsEqualIID(riid, &IID_IUnknown) ||
 238        IsEqualIID(riid, &IID_IDataInitialize))
 239     {
 240         *obj = &This->IDataInitialize_iface;
 241     }
 242     else
 243     {
 244         FIXME("interface %s not implemented\n", debugstr_guid(riid));
 245         return E_NOINTERFACE;
 246     }
 247
 248     IDataInitialize_AddRef(iface);
 249     return S_OK;
 250 }
 251
 252 static ULONG WINAPI datainit_AddRef(IDataInitialize *iface)
 253 {
 254     datainit *This = impl_from_IDataInitialize(iface);
 255     TRACE("(%p)\n", This);
 256
 257     return InterlockedIncrement(&This->ref);
 258 }
 259
 260 static ULONG WINAPI datainit_Release(IDataInitialize *iface)
 261 {
 262     datainit *This = impl_from_IDataInitialize(iface);
 263     LONG ref;
 264
 265     TRACE("(%p)\n", This);
 266
 267     ref = InterlockedDecrement(&This->ref);
 268     if(ref == 0)
 269     {
 270         HeapFree(GetProcessHeap(), 0, This);
 271     }
 272
 273     return ref;
 274 }
 275
 276 static void free_dbpropset(ULONG count, DBPROPSET *propset)
 277 {
 278     int i;
 279
 280     for (i = 0; i < count; i++)
 281     {
 282         int p;
 283
 284         for (p = 0; p < propset[i].cProperties; p++)
 285             VariantClear(&propset[i].rgProperties[p].vValue);
 286
 287         CoTaskMemFree(propset[i].rgProperties);
 288     }
 289     CoTaskMemFree(propset);
 290 }
 291
 292 /*** IDataInitialize methods ***/
 293 static HRESULT WINAPI datainit_GetDataSource(IDataInitialize *iface, IUnknown *outer, DWORD clsctx,
 294                                 LPWSTR initstring, REFIID riid, IUnknown **datasource)
 295 {
 296     static const WCHAR providerW[] = {'P','r','o','v','i','d','e','r','=',0};
 297     static const WCHAR msdasqlW[] = {'M','S','D','A','S','Q','L',0};
 298     datainit *This = impl_from_IDataInitialize(iface);
 299     WCHAR *prov = NULL;
 300     CLSID provclsid;
 301     HRESULT hr;
 302
 303     FIXME("(%p)->(%p 0x%x %s %s %p): semi-stub\n", This, outer, clsctx, debugstr_w(initstring), debugstr_guid(riid), datasource);
 304
 305     /* first get provider name */
 306     provclsid = IID_NULL;
 307     if (initstring && (prov = strstrW(initstring, providerW)))
 308     {
 309         WCHAR *start, *progid;
 310         int len;
 311
 312         prov += sizeof(providerW)/sizeof(WCHAR)-1;
 313         start = prov;
 314         while (*prov && *prov != ';')
 315             ++prov;
 316         TRACE("got provider %s\n", debugstr_wn(start, prov-start));
 317
 318         len = prov - start;
 319         progid = CoTaskMemAlloc((len+1)*sizeof(WCHAR));
 320         if (!progid) return E_OUTOFMEMORY;
 321
 322         memcpy(progid, start, len*sizeof(WCHAR));
 323         progid[len] = 0;
 324
 325         hr = CLSIDFromProgID(progid, &provclsid);
 326         CoTaskMemFree(progid);
 327         if (FAILED(hr))
 328         {
 329             ERR("provider %s not registered\n", debugstr_wn(start, prov-start));
 330             return hr;
 331         }
 332     }
 333     else
 334     {
 335         hr = CLSIDFromProgID(msdasqlW, &provclsid);
 336         if (FAILED(hr))
 337             ERR("ODBC provider for OLE DB not registered\n");
 338     }
 339
 340     /* check for provider mismatch if it was specified in init string */
 341     if (*datasource && prov)
 342     {
 343         IDBProperties *dbprops;
 344         DBPROPIDSET propidset;
 345         DBPROPSET *propset;
 346         enum DBPROPENUM prop;
 347         CLSID initprov;
 348         ULONG count;
 349
 350         hr = IUnknown_QueryInterface(*datasource, &IID_IDBProperties, (void**)&dbprops);
 351         if (FAILED(hr))
 352         {
 353             WARN("provider doesn't support IDBProperties\n");
 354             return hr;
 355         }
 356
 357         prop = DBPROP_INIT_DATASOURCE;
 358         propidset.rgPropertyIDs = &prop;
 359         propidset.cPropertyIDs = 1;
 360         propidset.guidPropertySet = DBPROPSET_DBINIT;
 361         count = 0;
 362         propset = NULL;
 363         hr = IDBProperties_GetProperties(dbprops, 1, &propidset, &count, &propset);
 364         IDBProperties_Release(dbprops);
 365         if (FAILED(hr))
 366         {
 367             WARN("GetProperties failed for datasource, 0x%08x\n", hr);
 368             return hr;
 369         }
 370
 371         TRACE("initial data source provider %s\n", debugstr_w(V_BSTR(&propset->rgProperties[0].vValue)));
 372         initprov = IID_NULL;
 373         CLSIDFromProgID(V_BSTR(&propset->rgProperties[0].vValue), &initprov);
 374         free_dbpropset(count, propset);
 375
 376         if (!IsEqualIID(&provclsid, &initprov)) return DB_E_MISMATCHEDPROVIDER;
 377     }
 378
 379     if (!*datasource)
 380     {
 381         if (!IsEqualIID(&provclsid, &IID_NULL))
 382             hr = CoCreateInstance(&provclsid, outer, clsctx, riid, (void**)datasource);
 383
 384         if (FAILED(hr) && IsEqualIID(riid, &IID_IDBInitialize))
 385             hr = create_db_init((void**)datasource);
 386     }
 387
 388     /* FIXME: set properties from init string */
 389
 390     return hr;
 391 }
 392
 393 /* returns character length of string representation */
 394 static int get_propvalue_length(DBPROP *prop)
 395 {
 396     VARIANT str;
 397     HRESULT hr;
 398
 399     if (V_VT(&prop->vValue) == VT_BSTR) return SysStringLen(V_BSTR(&prop->vValue));
 400
 401     VariantInit(&str);
 402     hr = VariantChangeType(&str, &prop->vValue, 0, VT_BSTR);
 403     if (hr == S_OK)
 404     {
 405         int len = SysStringLen(V_BSTR(&str));
 406         VariantClear(&str);
 407         return len;
 408     }
 409
 410     return 0;
 411 }
 412
 413 static void write_propvalue_str(WCHAR *str, DBPROP *prop)
 414 {
 415     VARIANT *v = &prop->vValue;
 416     VARIANT vstr;
 417     HRESULT hr;
 418
 419     if (V_VT(v) == VT_BSTR)
 420     {
 421         strcatW(str, V_BSTR(v));
 422         return;
 423     }
 424
 425     VariantInit(&vstr);
 426     hr = VariantChangeType(&vstr, v, VARIANT_ALPHABOOL, VT_BSTR);
 427     if (hr == S_OK)
 428     {
 429         strcatW(str, V_BSTR(&vstr));
 430         VariantClear(&vstr);
 431     }
 432 }
 433
 434 static WCHAR *get_propinfo_descr(DBPROP *prop, DBPROPINFOSET *propinfoset)
 435 {
 436     int i;
 437
 438     for (i = 0; i < propinfoset->cPropertyInfos; i++)
 439         if (propinfoset->rgPropertyInfos[i].dwPropertyID == prop->dwPropertyID)
 440             return propinfoset->rgPropertyInfos[i].pwszDescription;
 441
 442     return NULL;
 443 }
 444
 445 static void free_dbpropinfoset(ULONG count, DBPROPINFOSET *propinfoset)
 446 {
 447     int i;
 448
 449     for (i = 0; i < count; i++)
 450     {
 451         int p;
 452
 453         for (p = 0; p < propinfoset[i].cPropertyInfos; p++)
 454             VariantClear(&propinfoset[i].rgPropertyInfos[p].vValues);
 455
 456         CoTaskMemFree(propinfoset[i].rgPropertyInfos);
 457     }
 458     CoTaskMemFree(propinfoset);
 459 }
 460
 461 static HRESULT WINAPI datainit_GetInitializationString(IDataInitialize *iface, IUnknown *datasource,
 462                                 boolean include_pass, LPWSTR *init_string)
 463 {
 464     static const WCHAR provW[] = {'P','r','o','v','i','d','e','r','=',0};
 465     static const WCHAR colW[] = {';',0};
 466     datainit *This = impl_from_IDataInitialize(iface);
 467     DBPROPINFOSET *propinfoset;
 468     IDBProperties *props;
 469     DBPROPIDSET propidset;
 470     ULONG count, infocount;
 471     WCHAR *progid, *desc;
 472     DBPROPSET *propset;
 473     IPersist *persist;
 474     HRESULT hr;
 475     CLSID clsid;
 476     int i, len;
 477
 478     TRACE("(%p)->(%p %d %p)\n", This, datasource, include_pass, init_string);
 479
 480     /* IPersist support is mandatory for data sources */
 481     hr = IUnknown_QueryInterface(datasource, &IID_IPersist, (void**)&persist);
 482     if (FAILED(hr)) return hr;
 483
 484     memset(&clsid, 0, sizeof(clsid));
 485     hr = IPersist_GetClassID(persist, &clsid);
 486     IPersist_Release(persist);
 487     if (FAILED(hr)) return hr;
 488
 489     progid = NULL;
 490     ProgIDFromCLSID(&clsid, &progid);
 491     TRACE("clsid=%s, progid=%s\n", debugstr_guid(&clsid), debugstr_w(progid));
 492
 493     /* now get initialization properties */
 494     hr = IUnknown_QueryInterface(datasource, &IID_IDBProperties, (void**)&props);
 495     if (FAILED(hr))
 496     {
 497         WARN("IDBProperties not supported\n");
 498         CoTaskMemFree(progid);
 499         return hr;
 500     }
 501
 502     propidset.rgPropertyIDs = NULL;
 503     propidset.cPropertyIDs = 0;
 504     propidset.guidPropertySet = DBPROPSET_DBINIT;
 505     propset = NULL;
 506     count = 0;
 507     hr = IDBProperties_GetProperties(props, 1, &propidset, &count, &propset);
 508     if (FAILED(hr))
 509     {
 510         WARN("failed to get data source properties, 0x%08x\n", hr);
 511         CoTaskMemFree(progid);
 512         return hr;
 513     }
 514
 515     infocount = 0;
 516     IDBProperties_GetPropertyInfo(props, 1, &propidset, &infocount, &propinfoset, &desc);
 517     IDBProperties_Release(props);
 518
 519     /* check if we need to skip password */
 520     len = strlenW(progid) + strlenW(provW) + 1; /* including ';' */
 521     for (i = 0; i < count; i++)
 522     {
 523         WCHAR *descr = get_propinfo_descr(&propset->rgProperties[i], propinfoset);
 524         if (descr)
 525         {
 526             /* include '=' and ';' */
 527             len += strlenW(descr) + 2;
 528             len += get_propvalue_length(&propset->rgProperties[i]);
 529         }
 530
 531         if ((propset->rgProperties[i].dwPropertyID == DBPROP_AUTH_PERSIST_SENSITIVE_AUTHINFO) &&
 532             (V_BOOL(&propset->rgProperties[i].vValue) == VARIANT_FALSE))
 533            include_pass = FALSE;
 534     }
 535
 536     len *= sizeof(WCHAR);
 537     *init_string = CoTaskMemAlloc(len);
 538     *init_string[0] = 0;
 539
 540     /* provider name */
 541     strcatW(*init_string, provW);
 542     strcatW(*init_string, progid);
 543     strcatW(*init_string, colW);
 544     CoTaskMemFree(progid);
 545
 546     for (i = 0; i < count; i++)
 547     {
 548         WCHAR *descr;
 549
 550         if (!include_pass && propset->rgProperties[i].dwPropertyID == DBPROP_AUTH_PASSWORD) continue;
 551
 552         descr = get_propinfo_descr(&propset->rgProperties[i], propinfoset);
 553         if (descr)
 554         {
 555             static const WCHAR eqW[] = {'=',0};
 556             strcatW(*init_string, descr);
 557             strcatW(*init_string, eqW);
 558             write_propvalue_str(*init_string, &propset->rgProperties[i]);
 559             strcatW(*init_string, colW);
 560         }
 561     }
 562
 563     free_dbpropset(count, propset);
 564     free_dbpropinfoset(infocount, propinfoset);
 565     CoTaskMemFree(desc);
 566
 567     if (!include_pass)
 568         TRACE("%s\n", debugstr_w(*init_string));
 569     return S_OK;
 570 }
 571
 572 static HRESULT WINAPI datainit_CreateDBInstance(IDataInitialize *iface, REFCLSID provider,
 573                                 IUnknown *outer, DWORD clsctx, LPWSTR reserved, REFIID riid,
 574                                 IUnknown **datasource)
 575 {
 576     datainit *This = impl_from_IDataInitialize(iface);
 577
 578     TRACE("(%p)->(%s %p 0x%08x %s %s %p)\n", This, debugstr_guid(provider), outer, clsctx, debugstr_w(reserved),
 579         debugstr_guid(riid), datasource);
 580
 581     return CoCreateInstance(provider, outer, clsctx, riid, (void**)datasource);
 582 }
 583
 584 static HRESULT WINAPI datainit_RemoteCreateDBInstanceEx(IDataInitialize *iface, REFCLSID clsidProvider,
 585                                 IUnknown *pUnkOuter, DWORD dwClsCtx, LPWSTR pwszReserved, COSERVERINFO *pServerInfo,
 586                                 DWORD cmq, GUID **rgpIID, IUnknown **rgpItf, HRESULT *rghr)
 587 {
 588     datainit *This = impl_from_IDataInitialize(iface);
 589
 590     FIXME("(%p)->()\n", This);
 591
 592     return E_NOTIMPL;
 593 }
 594
 595 static HRESULT WINAPI datainit_LoadStringFromStorage(IDataInitialize *iface, LPWSTR pwszFileName,
 596                                 LPWSTR *ppwszInitializationString)
 597 {
 598     datainit *This = impl_from_IDataInitialize(iface);
 599
 600     FIXME("(%p)->(%s %p)\n", This, debugstr_w(pwszFileName), ppwszInitializationString);
 601
 602     return E_NOTIMPL;
 603 }
 604
 605 static HRESULT WINAPI datainit_WriteStringToStorage(IDataInitialize *iface, LPWSTR pwszFileName,
 606                                 LPWSTR pwszInitializationString, DWORD dwCreationDisposition)
 607 {
 608     datainit *This = impl_from_IDataInitialize(iface);
 609
 610     FIXME("(%p)->(%s %s %d)\n", This, debugstr_w(pwszFileName), debugstr_w(pwszInitializationString), dwCreationDisposition);
 611
 612     return E_NOTIMPL;
 613 }
 614
 615
 616 static const struct IDataInitializeVtbl datainit_vtbl =
 617 {
 618     datainit_QueryInterface,
 619     datainit_AddRef,
 620     datainit_Release,
 621     datainit_GetDataSource,
 622     datainit_GetInitializationString,
 623     datainit_CreateDBInstance,
 624     datainit_RemoteCreateDBInstanceEx,
 625     datainit_LoadStringFromStorage,
 626     datainit_WriteStringToStorage
 627 };
 628
 629 HRESULT create_data_init(IUnknown *outer, void **obj)
 630 {
 631     datainit *This;
 632
 633     TRACE("(%p)\n", obj);
 634
 635     if(outer) return CLASS_E_NOAGGREGATION;
 636
 637     *obj = NULL;
 638
 639     This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
 640     if(!This) return E_OUTOFMEMORY;
 641
 642     This->IDataInitialize_iface.lpVtbl = &datainit_vtbl;
 643     This->ref = 1;
 644
 645     *obj = &This->IDataInitialize_iface;
 646
 647     return S_OK;
 648 }