git.oblomov.eu Git - wine/blob - dlls/mshtml/main.c

   1 /*
   2  *    MSHTML Class Factory
   3  *
   4  * Copyright 2002 Lionel Ulmer
   5  * Copyright 2003 Mike McCormack
   6  * Copyright 2005 Jacek Caban
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include <stdarg.h>
  24 #include <stdio.h>
  25
  26 #define COBJMACROS
  27
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "winuser.h"
  31 #include "winreg.h"
  32 #include "ole2.h"
  33 #include "advpub.h"
  34 #include "shlwapi.h"
  35 #include "optary.h"
  36 #include "shlguid.h"
  37
  38 #include "wine/unicode.h"
  39 #include "wine/debug.h"
  40
  41 #define INIT_GUID
  42 #include "mshtml_private.h"
  43 #include "resource.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  46
  47 HINSTANCE hInst;
  48 DWORD mshtml_tls = TLS_OUT_OF_INDEXES;
  49
  50 static HINSTANCE shdoclc = NULL;
  51 static HDC display_dc;
  52 static LPWSTR status_strings[NUM_STATUS_STRINGS];
  53
  54 static void thread_detach(void)
  55 {
  56     thread_data_t *thread_data;
  57
  58     thread_data = get_thread_data(FALSE);
  59     if(!thread_data)
  60         return;
  61
  62     if(thread_data->thread_hwnd)
  63         DestroyWindow(thread_data->thread_hwnd);
  64
  65     heap_free(thread_data);
  66 }
  67
  68 static void free_strings(void)
  69 {
  70     int i;
  71     for(i = 0; i < NUM_STATUS_STRINGS; i++)
  72         heap_free(status_strings[i]);
  73 }
  74
  75 static void process_detach(void)
  76 {
  77     close_gecko();
  78     release_typelib();
  79
  80     if(shdoclc)
  81         FreeLibrary(shdoclc);
  82     if(mshtml_tls != TLS_OUT_OF_INDEXES)
  83         TlsFree(mshtml_tls);
  84     if(display_dc)
  85         DeleteObject(display_dc);
  86
  87     free_strings();
  88 }
  89
  90 void set_statustext(HTMLDocumentObj* doc, INT id, LPCWSTR arg)
  91 {
  92     int index = id - IDS_STATUS_DONE;
  93     LPWSTR p = status_strings[index];
  94
  95     if(!doc->frame)
  96         return;
  97
  98     if(!p)
  99     {
 100         DWORD len = 255;
 101         p = heap_alloc(len * sizeof(WCHAR));
 102         len = LoadStringW(hInst, id, p, len);
 103         len++;
 104         p = heap_realloc(p, len * sizeof(WCHAR));
 105         if(InterlockedCompareExchangePointer((void**)&status_strings[index], p, NULL))
 106         {
 107             heap_free(p);
 108             p = status_strings[index];
 109         }
 110     }
 111
 112     if(arg)
 113     {
 114         DWORD len = lstrlenW(p) + lstrlenW(arg) - 1;
 115         LPWSTR buf = heap_alloc(len * sizeof(WCHAR));
 116
 117         snprintfW(buf, len, p, arg);
 118
 119         p = buf;
 120     }
 121
 122     IOleInPlaceFrame_SetStatusText(doc->frame, p);
 123
 124     if(arg)
 125         heap_free(p);
 126 }
 127
 128 HINSTANCE get_shdoclc(void)
 129 {
 130     static const WCHAR wszShdoclc[] =
 131         {'s','h','d','o','c','l','c','.','d','l','l',0};
 132
 133     if(shdoclc)
 134         return shdoclc;
 135
 136     return shdoclc = LoadLibraryExW(wszShdoclc, NULL, LOAD_LIBRARY_AS_DATAFILE);
 137 }
 138
 139 HDC get_display_dc(void)
 140 {
 141     static const WCHAR displayW[] = {'D','I','S','P','L','A','Y',0};
 142
 143     if(!display_dc) {
 144         HDC hdc;
 145
 146         hdc = CreateICW(displayW, NULL, NULL, NULL);
 147         if(InterlockedCompareExchangePointer((void**)&display_dc, hdc, NULL))
 148             DeleteObject(hdc);
 149     }
 150
 151     return display_dc;
 152 }
 153
 154 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
 155 {
 156     switch(fdwReason) {
 157     case DLL_PROCESS_ATTACH:
 158         hInst = hInstDLL;
 159         break;
 160     case DLL_PROCESS_DETACH:
 161         process_detach();
 162         break;
 163     case DLL_THREAD_DETACH:
 164         thread_detach();
 165         break;
 166     }
 167     return TRUE;
 168 }
 169
 170 /***********************************************************
 171  *    ClassFactory implementation
 172  */
 173 typedef HRESULT (*CreateInstanceFunc)(IUnknown*,REFIID,void**);
 174 typedef struct {
 175     const IClassFactoryVtbl *lpVtbl;
 176     LONG ref;
 177     CreateInstanceFunc fnCreateInstance;
 178 } ClassFactory;
 179
 180 static HRESULT WINAPI ClassFactory_QueryInterface(IClassFactory *iface, REFGUID riid, void **ppvObject)
 181 {
 182     if(IsEqualGUID(&IID_IClassFactory, riid) || IsEqualGUID(&IID_IUnknown, riid)) {
 183         IClassFactory_AddRef(iface);
 184         *ppvObject = iface;
 185         return S_OK;
 186     }
 187
 188     WARN("not supported iid %s\n", debugstr_guid(riid));
 189     *ppvObject = NULL;
 190     return E_NOINTERFACE;
 191 }
 192
 193 static ULONG WINAPI ClassFactory_AddRef(IClassFactory *iface)
 194 {
 195     ClassFactory *This = (ClassFactory*)iface;
 196     ULONG ref = InterlockedIncrement(&This->ref);
 197     TRACE("(%p) ref = %u\n", This, ref);
 198     return ref;
 199 }
 200
 201 static ULONG WINAPI ClassFactory_Release(IClassFactory *iface)
 202 {
 203     ClassFactory *This = (ClassFactory*)iface;
 204     ULONG ref = InterlockedDecrement(&This->ref);
 205
 206     TRACE("(%p) ref = %u\n", This, ref);
 207
 208     if(!ref) {
 209         heap_free(This);
 210     }
 211
 212     return ref;
 213 }
 214
 215 static HRESULT WINAPI ClassFactory_CreateInstance(IClassFactory *iface, IUnknown *pUnkOuter,
 216         REFIID riid, void **ppvObject)
 217 {
 218     ClassFactory *This = (ClassFactory*)iface;
 219     return This->fnCreateInstance(pUnkOuter, riid, ppvObject);
 220 }
 221
 222 static HRESULT WINAPI ClassFactory_LockServer(IClassFactory *iface, BOOL dolock)
 223 {
 224     TRACE("(%p)->(%x)\n", iface, dolock);
 225
 226     /* We never unload the DLL. See DllCanUnloadNow(). */
 227     return S_OK;
 228 }
 229
 230 static const IClassFactoryVtbl HTMLClassFactoryVtbl = {
 231     ClassFactory_QueryInterface,
 232     ClassFactory_AddRef,
 233     ClassFactory_Release,
 234     ClassFactory_CreateInstance,
 235     ClassFactory_LockServer
 236 };
 237
 238 static HRESULT ClassFactory_Create(REFIID riid, void **ppv, CreateInstanceFunc fnCreateInstance)
 239 {
 240     ClassFactory *ret = heap_alloc(sizeof(ClassFactory));
 241     HRESULT hres;
 242
 243     ret->lpVtbl = &HTMLClassFactoryVtbl;
 244     ret->ref = 0;
 245     ret->fnCreateInstance = fnCreateInstance;
 246
 247     hres = IClassFactory_QueryInterface((IClassFactory*)ret, riid, ppv);
 248     if(FAILED(hres)) {
 249         heap_free(ret);
 250         *ppv = NULL;
 251     }
 252     return hres;
 253 }
 254
 255 /******************************************************************
 256  *              DllGetClassObject (MSHTML.@)
 257  */
 258 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 259 {
 260     if(IsEqualGUID(&CLSID_HTMLDocument, rclsid)) {
 261         TRACE("(CLSID_HTMLDocument %s %p)\n", debugstr_guid(riid), ppv);
 262         return ClassFactory_Create(riid, ppv, HTMLDocument_Create);
 263     }else if(IsEqualGUID(&CLSID_AboutProtocol, rclsid)) {
 264         TRACE("(CLSID_AboutProtocol %s %p)\n", debugstr_guid(riid), ppv);
 265         return ProtocolFactory_Create(rclsid, riid, ppv);
 266     }else if(IsEqualGUID(&CLSID_JSProtocol, rclsid)) {
 267         TRACE("(CLSID_JSProtocol %s %p)\n", debugstr_guid(riid), ppv);
 268         return ProtocolFactory_Create(rclsid, riid, ppv);
 269     }else if(IsEqualGUID(&CLSID_MailtoProtocol, rclsid)) {
 270         TRACE("(CLSID_MailtoProtocol %s %p)\n", debugstr_guid(riid), ppv);
 271         return ProtocolFactory_Create(rclsid, riid, ppv);
 272     }else if(IsEqualGUID(&CLSID_ResProtocol, rclsid)) {
 273         TRACE("(CLSID_ResProtocol %s %p)\n", debugstr_guid(riid), ppv);
 274         return ProtocolFactory_Create(rclsid, riid, ppv);
 275     }else if(IsEqualGUID(&CLSID_SysimageProtocol, rclsid)) {
 276         TRACE("(CLSID_SysimageProtocol %s %p)\n", debugstr_guid(riid), ppv);
 277         return ProtocolFactory_Create(rclsid, riid, ppv);
 278     }else if(IsEqualGUID(&CLSID_HTMLLoadOptions, rclsid)) {
 279         TRACE("(CLSID_HTMLLoadOptions %s %p)\n", debugstr_guid(riid), ppv);
 280         return ClassFactory_Create(riid, ppv, HTMLLoadOptions_Create);
 281     }
 282
 283     FIXME("Unknown class %s\n", debugstr_guid(rclsid));
 284     return CLASS_E_CLASSNOTAVAILABLE;
 285 }
 286
 287 /******************************************************************
 288  *              DllCanUnloadNow (MSHTML.@)
 289  */
 290 HRESULT WINAPI DllCanUnloadNow(void)
 291 {
 292     TRACE("()\n");
 293     /* The cost of keeping this DLL in memory is small. */
 294     return S_FALSE;
 295 }
 296
 297 /***********************************************************************
 298  *          RunHTMLApplication (MSHTML.@)
 299  *
 300  * Appears to have the same prototype as WinMain.
 301  */
 302 HRESULT WINAPI RunHTMLApplication( HINSTANCE hinst, HINSTANCE hPrevInst,
 303                                LPSTR szCmdLine, INT nCmdShow )
 304 {
 305     FIXME("%p %p %s %d\n", hinst, hPrevInst, debugstr_a(szCmdLine), nCmdShow );
 306     return 0;
 307 }
 308
 309 /***********************************************************************
 310  *          RNIGetCompatibleVersion (MSHTML.@)
 311  */
 312 DWORD WINAPI RNIGetCompatibleVersion(void)
 313 {
 314     TRACE("()\n");
 315     return 0x20000;
 316 }
 317
 318 /***********************************************************************
 319  *          DllInstall (MSHTML.@)
 320  */
 321 HRESULT WINAPI DllInstall(BOOL bInstall, LPCWSTR cmdline)
 322 {
 323     FIXME("stub %d %s: returning S_OK\n", bInstall, debugstr_w(cmdline));
 324     return S_OK;
 325 }
 326
 327 /***********************************************************************
 328  *          ShowHTMLDialog (MSHTML.@)
 329  */
 330 HRESULT WINAPI ShowHTMLDialog(HWND hwndParent, IMoniker *pMk, VARIANT *pvarArgIn,
 331         WCHAR *pchOptions, VARIANT *pvarArgOut)
 332 {
 333     FIXME("(%p %p %p %s %p)\n", hwndParent, pMk, pvarArgIn, debugstr_w(pchOptions), pvarArgOut);
 334     return E_NOTIMPL;
 335 }
 336
 337 /***********************************************************************
 338  *          PrintHTML (MSHTML.@)
 339  */
 340 void WINAPI PrintHTML(HWND hwnd, HINSTANCE handle, LPCSTR cmdline, INT show)
 341 {
 342     FIXME("(%p %p %s %x)\n", hwnd, handle, debugstr_a(cmdline), show);
 343 }
 344
 345 DEFINE_GUID(CLSID_CBackgroundPropertyPage, 0x3050F232, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 346 DEFINE_GUID(CLSID_CCDAnchorPropertyPage, 0x3050F1FC, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 347 DEFINE_GUID(CLSID_CCDGenericPropertyPage, 0x3050F17F, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 348 DEFINE_GUID(CLSID_CDwnBindInfo, 0x3050F3C2, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 349 DEFINE_GUID(CLSID_CHiFiUses, 0x5AAF51B3, 0xB1F0, 0x11D1, 0xB6,0xAB, 0x00,0xA0,0xC9,0x08,0x33,0xE9);
 350 DEFINE_GUID(CLSID_CHtmlComponentConstructor, 0x3050F4F8, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 351 DEFINE_GUID(CLSID_CInlineStylePropertyPage, 0x3050F296, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 352 DEFINE_GUID(CLSID_CPeerHandler, 0x5AAF51B2, 0xB1F0, 0x11D1, 0xB6,0xAB, 0x00,0xA0,0xC9,0x08,0x33,0xE9);
 353 DEFINE_GUID(CLSID_CRecalcEngine, 0x3050F499, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 354 DEFINE_GUID(CLSID_CSvrOMUses, 0x3050F4F0, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 355 DEFINE_GUID(CLSID_CrSource, 0x65014010, 0x9F62, 0x11D1, 0xA6,0x51, 0x00,0x60,0x08,0x11,0xD5,0xCE);
 356 DEFINE_GUID(CLSID_ExternalFrameworkSite, 0x3050F163, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 357 DEFINE_GUID(CLSID_HTADocument, 0x3050F5C8, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 358 DEFINE_GUID(CLSID_HTMLPluginDocument, 0x25336921, 0x03F9, 0x11CF, 0x8F,0xD0, 0x00,0xAA,0x00,0x68,0x6F,0x13);
 359 DEFINE_GUID(CLSID_HTMLPopup, 0x3050F667, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 360 DEFINE_GUID(CLSID_HTMLPopupDoc, 0x3050F67D, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 361 DEFINE_GUID(CLSID_HTMLServerDoc, 0x3050F4E7, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 362 DEFINE_GUID(CLSID_IImageDecodeFilter, 0x607FD4E8, 0x0A03, 0x11D1, 0xAB,0x1D, 0x00,0xC0,0x4F,0xC9,0xB3,0x04);
 363 DEFINE_GUID(CLSID_IImgCtx, 0x3050F3D6, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 364 DEFINE_GUID(CLSID_IntDitherer, 0x05F6FE1A, 0xECEF, 0x11D0, 0xAA,0xE7, 0x00,0xC0,0x4F,0xC9,0xB3,0x04);
 365 DEFINE_GUID(CLSID_MHTMLDocument, 0x3050F3D9, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
 366 DEFINE_GUID(CLSID_Scriptlet, 0xAE24FDAE, 0x03C6, 0x11D1, 0x8B,0x76, 0x00,0x80,0xC7,0x44,0xF3,0x89);
 367 DEFINE_GUID(CLSID_TridentAPI, 0x429AF92C, 0xA51F, 0x11D2, 0x86,0x1E, 0x00,0xC0,0x4F,0xA3,0x5C,0x89);
 368
 369 #define INF_SET_ID(id)            \
 370     do                            \
 371     {                             \
 372         static CHAR name[] = #id; \
 373                                   \
 374         pse[i].pszName = name;    \
 375         clsids[i++] = &id;        \
 376     } while (0)
 377
 378 #define INF_SET_CLSID(clsid) INF_SET_ID(CLSID_ ## clsid)
 379
 380 static HRESULT register_server(BOOL do_register)
 381 {
 382     HRESULT hres;
 383     HMODULE hAdvpack;
 384     HRESULT (WINAPI *pRegInstall)(HMODULE hm, LPCSTR pszSection, const STRTABLEA* pstTable);
 385     STRTABLEA strtable;
 386     STRENTRYA pse[35];
 387     static CLSID const *clsids[35];
 388     unsigned int i = 0;
 389
 390     static const WCHAR wszAdvpack[] = {'a','d','v','p','a','c','k','.','d','l','l',0};
 391
 392     TRACE("(%x)\n", do_register);
 393
 394     INF_SET_CLSID(AboutProtocol);
 395     INF_SET_CLSID(CAnchorBrowsePropertyPage);
 396     INF_SET_CLSID(CBackgroundPropertyPage);
 397     INF_SET_CLSID(CCDAnchorPropertyPage);
 398     INF_SET_CLSID(CCDGenericPropertyPage);
 399     INF_SET_CLSID(CDocBrowsePropertyPage);
 400     INF_SET_CLSID(CDwnBindInfo);
 401     INF_SET_CLSID(CHiFiUses);
 402     INF_SET_CLSID(CHtmlComponentConstructor);
 403     INF_SET_CLSID(CImageBrowsePropertyPage);
 404     INF_SET_CLSID(CInlineStylePropertyPage);
 405     INF_SET_CLSID(CPeerHandler);
 406     INF_SET_CLSID(CRecalcEngine);
 407     INF_SET_CLSID(CSvrOMUses);
 408     INF_SET_CLSID(CrSource);
 409     INF_SET_CLSID(ExternalFrameworkSite);
 410     INF_SET_CLSID(HTADocument);
 411     INF_SET_CLSID(HTMLDocument);
 412     INF_SET_CLSID(HTMLLoadOptions);
 413     INF_SET_CLSID(HTMLPluginDocument);
 414     INF_SET_CLSID(HTMLPopup);
 415     INF_SET_CLSID(HTMLPopupDoc);
 416     INF_SET_CLSID(HTMLServerDoc);
 417     INF_SET_CLSID(HTMLWindowProxy);
 418     INF_SET_CLSID(IImageDecodeFilter);
 419     INF_SET_CLSID(IImgCtx);
 420     INF_SET_CLSID(IntDitherer);
 421     INF_SET_CLSID(JSProtocol);
 422     INF_SET_CLSID(MHTMLDocument);
 423     INF_SET_CLSID(MailtoProtocol);
 424     INF_SET_CLSID(ResProtocol);
 425     INF_SET_CLSID(Scriptlet);
 426     INF_SET_CLSID(SysimageProtocol);
 427     INF_SET_CLSID(TridentAPI);
 428     INF_SET_ID(LIBID_MSHTML);
 429
 430     for(i=0; i < sizeof(pse)/sizeof(pse[0]); i++) {
 431         pse[i].pszValue = heap_alloc(39);
 432         sprintf(pse[i].pszValue, "{%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X}",
 433                 clsids[i]->Data1, clsids[i]->Data2, clsids[i]->Data3, clsids[i]->Data4[0],
 434                 clsids[i]->Data4[1], clsids[i]->Data4[2], clsids[i]->Data4[3], clsids[i]->Data4[4],
 435                 clsids[i]->Data4[5], clsids[i]->Data4[6], clsids[i]->Data4[7]);
 436     }
 437
 438     strtable.cEntries = sizeof(pse)/sizeof(pse[0]);
 439     strtable.pse = pse;
 440
 441     hAdvpack = LoadLibraryW(wszAdvpack);
 442     pRegInstall = (void *)GetProcAddress(hAdvpack, "RegInstall");
 443
 444     hres = pRegInstall(hInst, do_register ? "RegisterDll" : "UnregisterDll", &strtable);
 445
 446     for(i=0; i < sizeof(pse)/sizeof(pse[0]); i++)
 447         heap_free(pse[i].pszValue);
 448
 449     if(FAILED(hres)) {
 450         ERR("RegInstall failed: %08x\n", hres);
 451         return hres;
 452     }
 453
 454     if(do_register) {
 455         ITypeLib *typelib;
 456
 457         static const WCHAR wszMSHTML[] = {'m','s','h','t','m','l','.','t','l','b',0};
 458
 459         hres = LoadTypeLibEx(wszMSHTML, REGKIND_REGISTER, &typelib);
 460         if(SUCCEEDED(hres))
 461             ITypeLib_Release(typelib);
 462     }else {
 463         hres = UnRegisterTypeLib(&LIBID_MSHTML, 4, 0, LOCALE_SYSTEM_DEFAULT, SYS_WIN32);
 464     }
 465
 466     if(FAILED(hres))
 467         ERR("typelib registration failed: %08x\n", hres);
 468
 469     return hres;
 470 }
 471
 472 #undef INF_SET_CLSID
 473 #undef INF_SET_ID
 474
 475 /***********************************************************************
 476  *          DllRegisterServer (MSHTML.@)
 477  */
 478 HRESULT WINAPI DllRegisterServer(void)
 479 {
 480     HRESULT hres;
 481
 482     hres = register_server(TRUE);
 483     if(SUCCEEDED(hres))
 484         load_gecko(FALSE);
 485
 486     return hres;
 487 }
 488
 489 /***********************************************************************
 490  *          DllUnregisterServer (MSHTML.@)
 491  */
 492 HRESULT WINAPI DllUnregisterServer(void)
 493 {
 494     return register_server(FALSE);
 495 }
 496
 497 const char *debugstr_variant(const VARIANT *v)
 498 {
 499     if(!v)
 500         return "(null)";
 501
 502     switch(V_VT(v)) {
 503     case VT_EMPTY:
 504         return "{VT_EMPTY}";
 505     case VT_NULL:
 506         return "{VT_NULL}";
 507     case VT_I4:
 508         return wine_dbg_sprintf("{VT_I4: %d}", V_I4(v));
 509     case VT_R8:
 510         return wine_dbg_sprintf("{VT_R8: %lf}", V_R8(v));
 511     case VT_BSTR:
 512         return wine_dbg_sprintf("{VT_BSTR: %s}", debugstr_w(V_BSTR(v)));
 513     case VT_DISPATCH:
 514         return wine_dbg_sprintf("{VT_DISPATCH: %p}", V_DISPATCH(v));
 515     case VT_BOOL:
 516         return wine_dbg_sprintf("{VT_BOOL: %x}", V_BOOL(v));
 517     case VT_UINT:
 518         return wine_dbg_sprintf("{VT_UINT: %u}", V_UINT(v));
 519     default:
 520         return wine_dbg_sprintf("{vt %d}", V_VT(v));
 521     }
 522 }