dlls/vbscript/vbdisp.c

   1 /*
   2  * Copyright 2011 Jacek Caban for CodeWeavers
   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
  19 #include <assert.h>
  20
  21 #include "vbscript.h"
  22
  23 #include "wine/debug.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(vbscript);
  26
  27 #define FDEX_VERSION_MASK 0xf0000000
  28
  29 static inline BOOL is_func_id(vbdisp_t *This, DISPID id)
  30 {
  31     return id < This->desc->func_cnt;
  32 }
  33
  34 static BOOL get_func_id(vbdisp_t *This, const WCHAR *name, vbdisp_invoke_type_t invoke_type, BOOL search_private, DISPID *id)
  35 {
  36     unsigned i;
  37
  38     for(i = invoke_type == VBDISP_ANY ? 0 : 1; i < This->desc->func_cnt; i++) {
  39         if(invoke_type == VBDISP_ANY) {
  40             if(!search_private && !This->desc->funcs[i].is_public)
  41                 continue;
  42             if(!i && !This->desc->funcs[0].name) /* default value may not exist */
  43                 continue;
  44         }else {
  45             if(!This->desc->funcs[i].entries[invoke_type]
  46                 || (!search_private && !This->desc->funcs[i].entries[invoke_type]->is_public))
  47                 continue;
  48         }
  49
  50         if(!strcmpiW(This->desc->funcs[i].name, name)) {
  51             *id = i;
  52             return TRUE;
  53         }
  54     }
  55
  56     return FALSE;
  57 }
  58
  59 HRESULT vbdisp_get_id(vbdisp_t *This, BSTR name, vbdisp_invoke_type_t invoke_type, BOOL search_private, DISPID *id)
  60 {
  61     unsigned i;
  62
  63     if(get_func_id(This, name, invoke_type, search_private, id))
  64         return S_OK;
  65
  66     for(i=0; i < This->desc->prop_cnt; i++) {
  67         if(!search_private && !This->desc->props[i].is_public)
  68             continue;
  69
  70         if(!strcmpiW(This->desc->props[i].name, name)) {
  71             *id = i + This->desc->func_cnt;
  72             return S_OK;
  73         }
  74     }
  75
  76     if(This->desc->typeinfo) {
  77         HRESULT hres;
  78
  79         hres = ITypeInfo_GetIDsOfNames(This->desc->typeinfo, &name, 1, id);
  80         if(SUCCEEDED(hres))
  81             return S_OK;
  82     }
  83
  84     *id = -1;
  85     return DISP_E_UNKNOWNNAME;
  86 }
  87
  88 static VARIANT *get_propput_arg(const DISPPARAMS *dp)
  89 {
  90     unsigned i;
  91
  92     for(i=0; i < dp->cNamedArgs; i++) {
  93         if(dp->rgdispidNamedArgs[i] == DISPID_PROPERTYPUT)
  94             return dp->rgvarg+i;
  95     }
  96
  97     return NULL;
  98 }
  99
 100 static HRESULT invoke_variant_prop(vbdisp_t *This, VARIANT *v, WORD flags, DISPPARAMS *dp, VARIANT *res)
 101 {
 102     HRESULT hres;
 103
 104     switch(flags) {
 105     case DISPATCH_PROPERTYGET|DISPATCH_METHOD:
 106         if(dp->cArgs) {
 107             WARN("called with arguments\n");
 108             return DISP_E_MEMBERNOTFOUND; /* That's what tests show */
 109         }
 110
 111         hres = VariantCopy(res, v);
 112         break;
 113
 114     case DISPATCH_PROPERTYPUT: {
 115         VARIANT *put_val;
 116
 117         put_val = get_propput_arg(dp);
 118         if(!put_val) {
 119             WARN("no value to set\n");
 120             return DISP_E_PARAMNOTOPTIONAL;
 121         }
 122
 123         if(res)
 124             V_VT(res) = VT_EMPTY;
 125
 126         hres = VariantCopy(v, put_val);
 127         break;
 128     }
 129
 130     default:
 131         FIXME("unimplemented flags %x\n", flags);
 132         return E_NOTIMPL;
 133     }
 134
 135     return hres;
 136 }
 137
 138 static HRESULT invoke_builtin(vbdisp_t *This, const builtin_prop_t *prop, WORD flags, DISPPARAMS *dp, VARIANT *res)
 139 {
 140     VARIANT *args, arg_buf[8];
 141     unsigned argn;
 142
 143     switch(flags) {
 144     case DISPATCH_PROPERTYGET:
 145         if(!(prop->flags & (BP_GET|BP_GETPUT))) {
 146             FIXME("property does not support DISPATCH_PROPERTYGET\n");
 147             return E_FAIL;
 148         }
 149         break;
 150     case DISPATCH_PROPERTYGET|DISPATCH_METHOD:
 151         break;
 152     case DISPATCH_METHOD:
 153         if(prop->flags & (BP_GET|BP_GETPUT)) {
 154             FIXME("Call on property\n");
 155             return E_FAIL;
 156         }
 157         break;
 158     case DISPATCH_PROPERTYPUT:
 159         if(!(prop->flags & (BP_GET|BP_GETPUT))) {
 160             FIXME("property does not support DISPATCH_PROPERTYPUT\n");
 161             return E_FAIL;
 162         }
 163
 164         FIXME("call put\n");
 165         return E_NOTIMPL;
 166     default:
 167         FIXME("unsupported flags %x\n", flags);
 168         return E_NOTIMPL;
 169     }
 170
 171     argn = arg_cnt(dp);
 172
 173     if(argn < prop->min_args || argn > (prop->max_args ? prop->max_args : prop->min_args)) {
 174         FIXME("invalid number of arguments\n");
 175         return E_FAIL;
 176     }
 177
 178     args = dp->rgvarg;
 179
 180     if(argn == 1) {
 181         if(V_VT(dp->rgvarg) == (VT_BYREF|VT_VARIANT))
 182             args = V_VARIANTREF(dp->rgvarg);
 183     }else {
 184         unsigned i;
 185
 186         assert(argn < sizeof(arg_buf)/sizeof(*arg_buf));
 187
 188         for(i=0; i < argn; i++) {
 189             if(V_VT(dp->rgvarg+i) == (VT_BYREF|VT_VARIANT)) {
 190                 for(i=0; i < argn; i++) {
 191                     if(V_VT(dp->rgvarg+i) == (VT_BYREF|VT_VARIANT))
 192                         arg_buf[i] = *V_VARIANTREF(dp->rgvarg+i);
 193                     else
 194                         arg_buf[i] = dp->rgvarg[i];
 195                 }
 196                 args = arg_buf;
 197                 break;
 198             }
 199         }
 200     }
 201
 202     return prop->proc(This, args, dp->cArgs, res);
 203 }
 204
 205 static BOOL run_terminator(vbdisp_t *This)
 206 {
 207     DISPPARAMS dp = {0};
 208
 209     if(This->terminator_ran)
 210         return TRUE;
 211     This->terminator_ran = TRUE;
 212
 213     if(!This->desc->class_terminate_id)
 214         return TRUE;
 215
 216     This->ref++;
 217     exec_script(This->desc->ctx, This->desc->funcs[This->desc->class_terminate_id].entries[VBDISP_CALLGET],
 218             (IDispatch*)&This->IDispatchEx_iface, &dp, NULL);
 219     return !--This->ref;
 220 }
 221
 222 static void clean_props(vbdisp_t *This)
 223 {
 224     unsigned i;
 225
 226     if(!This->desc)
 227         return;
 228
 229     for(i=0; i < This->desc->prop_cnt; i++)
 230         VariantClear(This->props+i);
 231 }
 232
 233 static inline vbdisp_t *impl_from_IDispatchEx(IDispatchEx *iface)
 234 {
 235     return CONTAINING_RECORD(iface, vbdisp_t, IDispatchEx_iface);
 236 }
 237
 238 static HRESULT WINAPI DispatchEx_QueryInterface(IDispatchEx *iface, REFIID riid, void **ppv)
 239 {
 240     vbdisp_t *This = impl_from_IDispatchEx(iface);
 241
 242     if(IsEqualGUID(&IID_IUnknown, riid)) {
 243         TRACE("(%p)->(IID_IUnknown %p)\n", This, ppv);
 244         *ppv = &This->IDispatchEx_iface;
 245     }else if(IsEqualGUID(&IID_IDispatch, riid)) {
 246         TRACE("(%p)->(IID_IDispatch %p)\n", This, ppv);
 247         *ppv = &This->IDispatchEx_iface;
 248     }else if(IsEqualGUID(&IID_IDispatchEx, riid)) {
 249         TRACE("(%p)->(IID_IDispatchEx %p)\n", This, ppv);
 250         *ppv = &This->IDispatchEx_iface;
 251     }else {
 252         WARN("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppv);
 253         *ppv = NULL;
 254         return E_NOINTERFACE;
 255     }
 256
 257     IUnknown_AddRef((IUnknown*)*ppv);
 258     return S_OK;
 259 }
 260
 261 static ULONG WINAPI DispatchEx_AddRef(IDispatchEx *iface)
 262 {
 263     vbdisp_t *This = impl_from_IDispatchEx(iface);
 264     LONG ref = InterlockedIncrement(&This->ref);
 265
 266     TRACE("(%p) ref=%d\n", This, ref);
 267
 268     return ref;
 269 }
 270
 271 static ULONG WINAPI DispatchEx_Release(IDispatchEx *iface)
 272 {
 273     vbdisp_t *This = impl_from_IDispatchEx(iface);
 274     LONG ref = InterlockedDecrement(&This->ref);
 275
 276     TRACE("(%p) ref=%d\n", This, ref);
 277
 278     if(!ref && run_terminator(This)) {
 279         clean_props(This);
 280         list_remove(&This->entry);
 281         heap_free(This);
 282     }
 283
 284     return ref;
 285 }
 286
 287 static HRESULT WINAPI DispatchEx_GetTypeInfoCount(IDispatchEx *iface, UINT *pctinfo)
 288 {
 289     vbdisp_t *This = impl_from_IDispatchEx(iface);
 290
 291     TRACE("(%p)->(%p)\n", This, pctinfo);
 292
 293     *pctinfo = 1;
 294     return S_OK;
 295 }
 296
 297 static HRESULT WINAPI DispatchEx_GetTypeInfo(IDispatchEx *iface, UINT iTInfo, LCID lcid,
 298                                               ITypeInfo **ppTInfo)
 299 {
 300     vbdisp_t *This = impl_from_IDispatchEx(iface);
 301     FIXME("(%p)->(%u %u %p)\n", This, iTInfo, lcid, ppTInfo);
 302     return E_NOTIMPL;
 303 }
 304
 305 static HRESULT WINAPI DispatchEx_GetIDsOfNames(IDispatchEx *iface, REFIID riid,
 306                                                 LPOLESTR *rgszNames, UINT cNames, LCID lcid,
 307                                                 DISPID *rgDispId)
 308 {
 309     vbdisp_t *This = impl_from_IDispatchEx(iface);
 310     FIXME("(%p)->(%s %p %u %u %p)\n", This, debugstr_guid(riid), rgszNames, cNames,
 311           lcid, rgDispId);
 312     return E_NOTIMPL;
 313 }
 314
 315 static HRESULT WINAPI DispatchEx_Invoke(IDispatchEx *iface, DISPID dispIdMember,
 316                                         REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams,
 317                             VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
 318 {
 319     vbdisp_t *This = impl_from_IDispatchEx(iface);
 320     FIXME("(%p)->(%d %s %d %d %p %p %p %p)\n", This, dispIdMember, debugstr_guid(riid),
 321           lcid, wFlags, pDispParams, pVarResult, pExcepInfo, puArgErr);
 322     return E_NOTIMPL;
 323 }
 324
 325 static HRESULT WINAPI DispatchEx_GetDispID(IDispatchEx *iface, BSTR bstrName, DWORD grfdex, DISPID *pid)
 326 {
 327     vbdisp_t *This = impl_from_IDispatchEx(iface);
 328
 329     TRACE("(%p)->(%s %x %p)\n", This, debugstr_w(bstrName), grfdex, pid);
 330
 331     grfdex &= ~FDEX_VERSION_MASK;
 332
 333     if(!This->desc)
 334         return E_UNEXPECTED;
 335
 336     if(grfdex & ~(fdexNameEnsure|fdexNameCaseInsensitive)) {
 337         FIXME("unsupported flags %x\n", grfdex);
 338         return E_NOTIMPL;
 339     }
 340
 341     return vbdisp_get_id(This, bstrName, VBDISP_ANY, FALSE, pid);
 342 }
 343
 344 static HRESULT WINAPI DispatchEx_InvokeEx(IDispatchEx *iface, DISPID id, LCID lcid, WORD wFlags, DISPPARAMS *pdp,
 345         VARIANT *pvarRes, EXCEPINFO *pei, IServiceProvider *pspCaller)
 346 {
 347     vbdisp_t *This = impl_from_IDispatchEx(iface);
 348
 349     TRACE("(%p)->(%x %x %x %p %p %p %p)\n", This, id, lcid, wFlags, pdp, pvarRes, pei, pspCaller);
 350
 351     if(!This->desc)
 352         return E_UNEXPECTED;
 353
 354     if(pvarRes)
 355         V_VT(pvarRes) = VT_EMPTY;
 356
 357     if(id < 0)
 358         return DISP_E_MEMBERNOTFOUND;
 359
 360     if(is_func_id(This, id)) {
 361         function_t *func;
 362
 363         switch(wFlags) {
 364         case DISPATCH_METHOD:
 365         case DISPATCH_METHOD|DISPATCH_PROPERTYGET:
 366             func = This->desc->funcs[id].entries[VBDISP_CALLGET];
 367             if(!func) {
 368                 FIXME("no invoke/getter\n");
 369                 return DISP_E_MEMBERNOTFOUND;
 370             }
 371
 372             return exec_script(This->desc->ctx, func, (IDispatch*)&This->IDispatchEx_iface, pdp, pvarRes);
 373         case DISPATCH_PROPERTYPUT: {
 374             VARIANT *put_val;
 375             DISPPARAMS dp = {NULL, NULL, 1, 0};
 376
 377             if(arg_cnt(pdp)) {
 378                 FIXME("arguments not implemented\n");
 379                 return E_NOTIMPL;
 380             }
 381
 382             put_val = get_propput_arg(pdp);
 383             if(!put_val) {
 384                 WARN("no value to set\n");
 385                 return DISP_E_PARAMNOTOPTIONAL;
 386             }
 387
 388             dp.rgvarg = put_val;
 389             func = This->desc->funcs[id].entries[V_VT(put_val) == VT_DISPATCH ? VBDISP_SET : VBDISP_LET];
 390             if(!func) {
 391                 FIXME("no letter/setter\n");
 392                 return DISP_E_MEMBERNOTFOUND;
 393             }
 394
 395             return exec_script(This->desc->ctx, func, (IDispatch*)&This->IDispatchEx_iface, &dp, NULL);
 396         }
 397         default:
 398             FIXME("flags %x\n", wFlags);
 399             return DISP_E_MEMBERNOTFOUND;
 400         }
 401     }
 402
 403     if(id < This->desc->prop_cnt + This->desc->func_cnt)
 404         return invoke_variant_prop(This, This->props+(id-This->desc->func_cnt), wFlags, pdp, pvarRes);
 405
 406     if(This->desc->builtin_prop_cnt) {
 407         unsigned min = 0, max = This->desc->builtin_prop_cnt-1, i;
 408
 409         while(min <= max) {
 410             i = (min+max)/2;
 411             if(This->desc->builtin_props[i].id == id)
 412                 return invoke_builtin(This, This->desc->builtin_props+i, wFlags, pdp, pvarRes);
 413             if(This->desc->builtin_props[i].id < id)
 414                 min = i+1;
 415             else
 416                 max = i-1;
 417         }
 418     }
 419
 420     return DISP_E_MEMBERNOTFOUND;
 421 }
 422
 423 static HRESULT WINAPI DispatchEx_DeleteMemberByName(IDispatchEx *iface, BSTR bstrName, DWORD grfdex)
 424 {
 425     vbdisp_t *This = impl_from_IDispatchEx(iface);
 426     FIXME("(%p)->(%s %x)\n", This, debugstr_w(bstrName), grfdex);
 427     return E_NOTIMPL;
 428 }
 429
 430 static HRESULT WINAPI DispatchEx_DeleteMemberByDispID(IDispatchEx *iface, DISPID id)
 431 {
 432     vbdisp_t *This = impl_from_IDispatchEx(iface);
 433     FIXME("(%p)->(%x)\n", This, id);
 434     return E_NOTIMPL;
 435 }
 436
 437 static HRESULT WINAPI DispatchEx_GetMemberProperties(IDispatchEx *iface, DISPID id, DWORD grfdexFetch, DWORD *pgrfdex)
 438 {
 439     vbdisp_t *This = impl_from_IDispatchEx(iface);
 440     FIXME("(%p)->(%x %x %p)\n", This, id, grfdexFetch, pgrfdex);
 441     return E_NOTIMPL;
 442 }
 443
 444 static HRESULT WINAPI DispatchEx_GetMemberName(IDispatchEx *iface, DISPID id, BSTR *pbstrName)
 445 {
 446     vbdisp_t *This = impl_from_IDispatchEx(iface);
 447     FIXME("(%p)->(%x %p)\n", This, id, pbstrName);
 448     return E_NOTIMPL;
 449 }
 450
 451 static HRESULT WINAPI DispatchEx_GetNextDispID(IDispatchEx *iface, DWORD grfdex, DISPID id, DISPID *pid)
 452 {
 453     vbdisp_t *This = impl_from_IDispatchEx(iface);
 454     FIXME("(%p)->(%x %x %p)\n", This, grfdex, id, pid);
 455     return E_NOTIMPL;
 456 }
 457
 458 static HRESULT WINAPI DispatchEx_GetNameSpaceParent(IDispatchEx *iface, IUnknown **ppunk)
 459 {
 460     vbdisp_t *This = impl_from_IDispatchEx(iface);
 461     FIXME("(%p)->(%p)\n", This, ppunk);
 462     return E_NOTIMPL;
 463 }
 464
 465 static IDispatchExVtbl DispatchExVtbl = {
 466     DispatchEx_QueryInterface,
 467     DispatchEx_AddRef,
 468     DispatchEx_Release,
 469     DispatchEx_GetTypeInfoCount,
 470     DispatchEx_GetTypeInfo,
 471     DispatchEx_GetIDsOfNames,
 472     DispatchEx_Invoke,
 473     DispatchEx_GetDispID,
 474     DispatchEx_InvokeEx,
 475     DispatchEx_DeleteMemberByName,
 476     DispatchEx_DeleteMemberByDispID,
 477     DispatchEx_GetMemberProperties,
 478     DispatchEx_GetMemberName,
 479     DispatchEx_GetNextDispID,
 480     DispatchEx_GetNameSpaceParent
 481 };
 482
 483 static inline vbdisp_t *unsafe_impl_from_IDispatch(IDispatch *iface)
 484 {
 485     return iface->lpVtbl == (IDispatchVtbl*)&DispatchExVtbl
 486         ? CONTAINING_RECORD(iface, vbdisp_t, IDispatchEx_iface)
 487         : NULL;
 488 }
 489
 490 HRESULT create_vbdisp(const class_desc_t *desc, vbdisp_t **ret)
 491 {
 492     vbdisp_t *vbdisp;
 493
 494     vbdisp = heap_alloc_zero( FIELD_OFFSET( vbdisp_t, props[desc->prop_cnt] ));
 495     if(!vbdisp)
 496         return E_OUTOFMEMORY;
 497
 498     vbdisp->IDispatchEx_iface.lpVtbl = &DispatchExVtbl;
 499     vbdisp->ref = 1;
 500     vbdisp->desc = desc;
 501
 502     if(desc->class_initialize_id) {
 503         DISPPARAMS dp = {0};
 504         HRESULT hres;
 505
 506         hres = exec_script(desc->ctx, desc->funcs[desc->class_initialize_id].entries[VBDISP_CALLGET],
 507                            (IDispatch*)&vbdisp->IDispatchEx_iface, &dp, NULL);
 508         if(FAILED(hres)) {
 509             IDispatchEx_Release(&vbdisp->IDispatchEx_iface);
 510             return hres;
 511         }
 512     }
 513
 514     list_add_tail(&desc->ctx->objects, &vbdisp->entry);
 515     *ret = vbdisp;
 516     return S_OK;
 517 }
 518
 519 void collect_objects(script_ctx_t *ctx)
 520 {
 521     vbdisp_t *iter, *iter2;
 522
 523     LIST_FOR_EACH_ENTRY_SAFE(iter, iter2, &ctx->objects, vbdisp_t, entry)
 524         run_terminator(iter);
 525
 526     while(!list_empty(&ctx->objects)) {
 527         iter = LIST_ENTRY(list_head(&ctx->objects), vbdisp_t, entry);
 528
 529         IDispatchEx_AddRef(&iter->IDispatchEx_iface);
 530         clean_props(iter);
 531         iter->desc = NULL;
 532         list_remove(&iter->entry);
 533         list_init(&iter->entry);
 534         IDispatchEx_Release(&iter->IDispatchEx_iface);
 535     }
 536 }
 537
 538 HRESULT disp_get_id(IDispatch *disp, BSTR name, vbdisp_invoke_type_t invoke_type, BOOL search_private, DISPID *id)
 539 {
 540     IDispatchEx *dispex;
 541     vbdisp_t *vbdisp;
 542     HRESULT hres;
 543
 544     vbdisp = unsafe_impl_from_IDispatch(disp);
 545     if(vbdisp)
 546         return vbdisp_get_id(vbdisp, name, invoke_type, search_private, id);
 547
 548     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 549     if(FAILED(hres)) {
 550         TRACE("using IDispatch\n");
 551         return IDispatch_GetIDsOfNames(disp, &IID_NULL, &name, 1, 0, id);
 552     }
 553
 554     hres = IDispatchEx_GetDispID(dispex, name, fdexNameCaseInsensitive, id);
 555     IDispatchEx_Release(dispex);
 556     return hres;
 557 }
 558
 559 HRESULT disp_call(script_ctx_t *ctx, IDispatch *disp, DISPID id, DISPPARAMS *dp, VARIANT *retv)
 560 {
 561     const WORD flags = DISPATCH_METHOD|(retv ? DISPATCH_PROPERTYGET : 0);
 562     IDispatchEx *dispex;
 563     EXCEPINFO ei;
 564     HRESULT hres;
 565
 566     memset(&ei, 0, sizeof(ei));
 567     if(retv)
 568         V_VT(retv) = VT_EMPTY;
 569
 570     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 571     if(FAILED(hres)) {
 572         UINT err = 0;
 573
 574         TRACE("using IDispatch\n");
 575         return IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, flags, dp, retv, &ei, &err);
 576     }
 577
 578     hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, flags, dp, retv, &ei, NULL /* CALLER_FIXME */);
 579     IDispatchEx_Release(dispex);
 580     return hres;
 581 }
 582
 583 HRESULT disp_propput(script_ctx_t *ctx, IDispatch *disp, DISPID id, DISPPARAMS *dp)
 584 {
 585     IDispatchEx *dispex;
 586     EXCEPINFO ei = {0};
 587     HRESULT hres;
 588
 589     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 590     if(SUCCEEDED(hres)) {
 591         hres = IDispatchEx_InvokeEx(dispex, id, ctx->lcid, DISPATCH_PROPERTYPUT, dp, NULL, &ei, NULL /* FIXME! */);
 592         IDispatchEx_Release(dispex);
 593     }else {
 594         ULONG err = 0;
 595
 596         TRACE("using IDispatch\n");
 597         hres = IDispatch_Invoke(disp, id, &IID_NULL, ctx->lcid, DISPATCH_PROPERTYPUT, dp, NULL, &ei, &err);
 598     }
 599
 600     return hres;
 601 }