src/msw/ole/oleutils.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/ole/oleutils.cpp
   3 // Purpose:     implementation of OLE helper functions
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     19.02.98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // Declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #if defined(__BORLANDC__)
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_OLE
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/log.h"
  31 #endif
  32
  33 #ifndef __CYGWIN10__
  34
  35 #include "wx/msw/private.h"
  36
  37 #ifdef __WXWINCE__
  38     #include <winreg.h>
  39     #include <ole2.h>
  40
  41     #define GUID_DEFINED
  42     #define UUID_DEFINED
  43 #endif
  44
  45 // OLE
  46 #ifndef __WXWINCE__
  47 #include  "wx/msw/ole/uuid.h"
  48 #endif
  49
  50 #include  "wx/msw/ole/oleutils.h"
  51
  52 #if defined(__VISUALC__) && (__VISUALC__ > 1000)
  53     #include  <docobj.h>
  54 #endif
  55
  56 // ============================================================================
  57 // Implementation
  58 // ============================================================================
  59
  60 // return true if the iid is in the array
  61 WXDLLEXPORT bool IsIidFromList(REFIID riid, const IID *aIids[], size_t nCount)
  62 {
  63   for ( size_t i = 0; i < nCount; i++ ) {
  64     if ( riid == *aIids[i] )
  65       return true;
  66   }
  67
  68   return false;
  69 }
  70
  71 WXDLLEXPORT BSTR wxConvertStringToOle(const wxString& str)
  72 {
  73     return wxBasicString(str).Get();
  74 }
  75
  76 WXDLLEXPORT wxString wxConvertStringFromOle(BSTR bStr)
  77 {
  78     // NULL BSTR is equivalent to an empty string (this is the convention used
  79     // by VB and hence we must follow it)
  80     if ( !bStr )
  81         return wxString();
  82
  83     const int len = SysStringLen(bStr);
  84
  85 #if wxUSE_UNICODE
  86     wxString str(bStr, len);
  87 #else
  88     wxString str;
  89     if (len)
  90     {
  91         wxStringBufferLength buf(str, len); // asserts if len == 0
  92         buf.SetLength(WideCharToMultiByte(CP_ACP, 0 /* no flags */,
  93                                   bStr, len /* not necessarily NUL-terminated */,
  94                                   buf, len,
  95                                   NULL, NULL /* no default char */));
  96     }
  97 #endif
  98
  99     return str;
 100 }
 101
 102 // ----------------------------------------------------------------------------
 103 // wxBasicString
 104 // ----------------------------------------------------------------------------
 105
 106 wxBasicString::wxBasicString(const wxString& str)
 107 {
 108     m_bstrBuf = SysAllocString(str.wc_str(*wxConvCurrent));
 109 }
 110
 111 wxBasicString::wxBasicString(const wxBasicString& src)
 112 {
 113     m_bstrBuf = src.Get();
 114 }
 115
 116 wxBasicString& wxBasicString::operator=(const wxBasicString& src)
 117 {
 118     SysReAllocString(&m_bstrBuf, src);
 119     return *this;
 120 }
 121
 122 wxBasicString::~wxBasicString()
 123 {
 124     SysFreeString(m_bstrBuf);
 125 }
 126
 127
 128 // ----------------------------------------------------------------------------
 129 // Convert variants
 130 // ----------------------------------------------------------------------------
 131
 132 #if wxUSE_VARIANT
 133
 134 namespace
 135 {
 136
 137 // Helper class for creating and filling SAFEARRAY. To use it, call Create()
 138 // first, then SetElement() for each element and finally Detach() the SAFEARRAY
 139 // from it if you don't want it to be deleted when this class is.
 140 class wxSafeArrayHelper
 141 {
 142 public:
 143     wxSafeArrayHelper();
 144     ~wxSafeArrayHelper();
 145
 146     bool Create(VARTYPE vt, long count); // creates and locks the array
 147
 148     bool SetElement(size_t index, const wxVariant& variant);
 149     bool SetElement(size_t index, const wxString& str);
 150
 151     SAFEARRAY* Detach(); // unlocks the array and gives up its ownership
 152
 153 private:
 154     void Unlock();
 155
 156     SAFEARRAY* m_array;
 157 };
 158
 159 wxSafeArrayHelper::wxSafeArrayHelper()
 160 {
 161     m_array = NULL;
 162 }
 163
 164 wxSafeArrayHelper::~wxSafeArrayHelper()
 165 {
 166     if ( m_array )
 167     {
 168         Unlock();
 169         SafeArrayDestroy(m_array);
 170     }
 171 }
 172
 173 bool wxSafeArrayHelper::Create(VARTYPE vt, long count)
 174 {
 175     SAFEARRAYBOUND saBound;
 176
 177     saBound.lLbound = 0;
 178     saBound.cElements = count;
 179     m_array = SafeArrayCreate(vt, 1, &saBound);
 180     if ( !m_array )
 181         return false;
 182     return SUCCEEDED( SafeArrayLock(m_array) );
 183 }
 184
 185 bool wxSafeArrayHelper::SetElement(size_t index, const wxVariant& variant)
 186 {
 187     VARIANT* data = (VARIANT*)m_array->pvData;
 188     return wxConvertVariantToOle(variant, data[index]);
 189 }
 190
 191 bool wxSafeArrayHelper::SetElement(size_t index, const wxString& str)
 192 {
 193     BSTR bstr = wxConvertStringToOle(str);
 194
 195     if ( !bstr && !str.empty() )
 196     {
 197         // BSTR can be NULL for empty strings but if the string was
 198         // not empty, it means we failed to allocate memory for it.
 199         return false;
 200     }
 201
 202     BSTR* data = (BSTR*)m_array->pvData;
 203     data[index] = bstr;
 204     return true;
 205 }
 206
 207 SAFEARRAY* wxSafeArrayHelper::Detach()
 208 {
 209     Unlock();
 210     SAFEARRAY* result = m_array;
 211     m_array = NULL;
 212     return result;
 213 }
 214
 215 void wxSafeArrayHelper::Unlock()
 216 {
 217     if ( m_array )
 218         SafeArrayUnlock(m_array);
 219 }
 220
 221 } // unnamed namespace
 222
 223
 224 // ----------------------------------------------------------------------------
 225 // wxVariantDataCurrency
 226 // ----------------------------------------------------------------------------
 227
 228
 229 #if wxUSE_ANY
 230
 231 bool wxVariantDataCurrency::GetAsAny(wxAny* any) const
 232 {
 233     *any = m_value;
 234     return true;
 235 }
 236
 237 wxVariantData* wxVariantDataCurrency::VariantDataFactory(const wxAny& any)
 238 {
 239     return new wxVariantDataCurrency(wxANY_AS(any, CURRENCY));
 240 }
 241
 242 REGISTER_WXANY_CONVERSION(CURRENCY, wxVariantDataCurrency)
 243
 244 #endif // wxUSE_ANY
 245
 246 bool wxVariantDataCurrency::Eq(wxVariantData& data) const
 247 {
 248     wxASSERT_MSG( (data.GetType() == wxS("currency")),
 249                   "wxVariantDataCurrency::Eq: argument mismatch" );
 250
 251     wxVariantDataCurrency& otherData = (wxVariantDataCurrency&) data;
 252
 253     return otherData.m_value.int64 == m_value.int64;
 254 }
 255
 256 #if wxUSE_STD_IOSTREAM
 257 bool wxVariantDataCurrency::Write(wxSTD ostream& str) const
 258 {
 259     wxString s;
 260     Write(s);
 261     str << s;
 262     return true;
 263 }
 264 #endif
 265
 266 bool wxVariantDataCurrency::Write(wxString& str) const
 267 {
 268     BSTR bStr = NULL;
 269     if ( SUCCEEDED(VarBstrFromCy(m_value, LOCALE_USER_DEFAULT, 0, &bStr)) )
 270     {
 271         str = wxConvertStringFromOle(bStr);
 272         SysFreeString(bStr);
 273         return true;
 274     }
 275     return false;
 276 }
 277
 278 // ----------------------------------------------------------------------------
 279 // wxVariantDataErrorCode
 280 // ----------------------------------------------------------------------------
 281
 282 #if wxUSE_ANY
 283
 284 bool wxVariantDataErrorCode::GetAsAny(wxAny* any) const
 285 {
 286     *any = m_value;
 287     return true;
 288 }
 289
 290 wxVariantData* wxVariantDataErrorCode::VariantDataFactory(const wxAny& any)
 291 {
 292     return new wxVariantDataErrorCode(wxANY_AS(any, SCODE));
 293 }
 294
 295 REGISTER_WXANY_CONVERSION(SCODE, wxVariantDataErrorCode)
 296
 297 #endif // wxUSE_ANY
 298
 299 bool wxVariantDataErrorCode::Eq(wxVariantData& data) const
 300 {
 301     wxASSERT_MSG( (data.GetType() == wxS("errorcode")),
 302                   "wxVariantDataErrorCode::Eq: argument mismatch" );
 303
 304     wxVariantDataErrorCode& otherData = (wxVariantDataErrorCode&) data;
 305
 306     return otherData.m_value == m_value;
 307 }
 308
 309 #if wxUSE_STD_IOSTREAM
 310 bool wxVariantDataErrorCode::Write(wxSTD ostream& str) const
 311 {
 312     wxString s;
 313     Write(s);
 314     str << s;
 315     return true;
 316 }
 317 #endif
 318
 319 bool wxVariantDataErrorCode::Write(wxString& str) const
 320 {
 321     str << m_value;
 322     return true;
 323 }
 324
 325
 326
 327 WXDLLEXPORT bool wxConvertVariantToOle(const wxVariant& variant, VARIANTARG& oleVariant)
 328 {
 329     VariantInit(&oleVariant);
 330     if (variant.IsNull())
 331     {
 332         oleVariant.vt = VT_NULL;
 333         return true;
 334     }
 335
 336     wxString type(variant.GetType());
 337
 338     if (type == wxT("errorcode"))
 339     {
 340         wxVariantDataErrorCode* const
 341             ec = wxDynamicCastVariantData(variant.GetData(),
 342                                           wxVariantDataErrorCode);
 343         oleVariant.vt = VT_ERROR;
 344         oleVariant.scode = ec->GetValue();
 345     }
 346     else if (type == wxT("currency"))
 347     {
 348         wxVariantDataCurrency* const
 349             c = wxDynamicCastVariantData(variant.GetData(),
 350                                          wxVariantDataCurrency);
 351         oleVariant.vt = VT_CY;
 352         oleVariant.cyVal = c->GetValue();
 353     }
 354     else if (type == wxT("long"))
 355     {
 356         oleVariant.vt = VT_I4;
 357         oleVariant.lVal = variant.GetLong() ;
 358     }
 359     // Original VC6 came with SDK too old to contain VARIANT::llVal declaration
 360     // and there doesn't seem to be any way to test for it as Microsoft simply
 361     // added it to the later version of oaidl.h without changing anything else.
 362     // So assume it's not present for VC6, even though it might be if an
 363     // updated SDK is used. In this case the user would need to disable this
 364     // check himself.
 365 #if wxUSE_LONGLONG && !defined(__VISUALC6__)
 366     else if (type == wxT("longlong"))
 367     {
 368         oleVariant.vt = VT_I8;
 369         oleVariant.llVal = variant.GetLongLong().GetValue();
 370     }
 371 #endif
 372     else if (type == wxT("char"))
 373     {
 374         oleVariant.vt=VT_I1;            // Signed Char
 375         oleVariant.cVal=variant.GetChar();
 376     }
 377     else if (type == wxT("double"))
 378     {
 379         oleVariant.vt = VT_R8;
 380         oleVariant.dblVal = variant.GetDouble();
 381     }
 382     else if (type == wxT("bool"))
 383     {
 384         oleVariant.vt = VT_BOOL;
 385         oleVariant.boolVal = variant.GetBool() ? VARIANT_TRUE : VARIANT_FALSE;
 386     }
 387     else if (type == wxT("string"))
 388     {
 389         wxString str( variant.GetString() );
 390         oleVariant.vt = VT_BSTR;
 391         oleVariant.bstrVal = wxConvertStringToOle(str);
 392     }
 393 #if wxUSE_DATETIME
 394     else if (type == wxT("datetime"))
 395     {
 396         wxDateTime date( variant.GetDateTime() );
 397         oleVariant.vt = VT_DATE;
 398
 399         SYSTEMTIME st;
 400         date.GetAsMSWSysTime(&st);
 401
 402         SystemTimeToVariantTime(&st, &oleVariant.date);
 403     }
 404 #endif
 405     else if (type == wxT("void*"))
 406     {
 407         oleVariant.vt = VT_DISPATCH;
 408         oleVariant.pdispVal = (IDispatch*) variant.GetVoidPtr();
 409     }
 410     else if (type == wxT("list"))
 411     {
 412         wxSafeArrayHelper sah;
 413
 414         if (!sah.Create(VT_VARIANT, variant.GetCount()))
 415             return false;
 416
 417         for (size_t i = 0; i < variant.GetCount(); i++)
 418         {
 419             if (!sah.SetElement(i, variant[i]))
 420                 return false;
 421         }
 422
 423         oleVariant.vt = VT_VARIANT | VT_ARRAY;
 424         oleVariant.parray = sah.Detach();
 425     }
 426     else if (type == wxT("arrstring"))
 427     {
 428         wxArrayString strings(variant.GetArrayString());
 429         wxSafeArrayHelper sah;
 430
 431         if (!sah.Create(VT_BSTR, strings.GetCount()))
 432             return false;
 433
 434         for (size_t i = 0; i < strings.GetCount(); i++)
 435         {
 436             if (!sah.SetElement(i, strings[i]))
 437                 return false;
 438         }
 439
 440         oleVariant.vt = VT_BSTR | VT_ARRAY;
 441         oleVariant.parray = sah.Detach();
 442     }
 443     else
 444     {
 445         oleVariant.vt = VT_NULL;
 446         return false;
 447     }
 448     return true;
 449 }
 450
 451 #ifndef VT_TYPEMASK
 452 #define VT_TYPEMASK 0xfff
 453 #endif
 454
 455 WXDLLEXPORT bool
 456 wxConvertOleToVariant(const VARIANTARG& oleVariant, wxVariant& variant)
 457 {
 458     bool ok = true;
 459     if ( oleVariant.vt & VT_ARRAY )
 460     {
 461
 462         // Compute the total number of elements in all array dimensions
 463         int cElements = 1;
 464         for ( int cDims = 0; cDims < oleVariant.parray->cDims; cDims++ )
 465             cElements *= oleVariant.parray->rgsabound[cDims].cElements;
 466
 467         // Get a pointer to the data
 468         void* pvdata;
 469         HRESULT hr = SafeArrayAccessData(oleVariant.parray, &pvdata);
 470         if ( FAILED(hr) )
 471             return false;
 472
 473         switch (oleVariant.vt & VT_TYPEMASK)
 474         {
 475             case VT_VARIANT:
 476                 {
 477                     variant.ClearList();
 478                     VARIANTARG *variant_data=(VARIANTARG*)pvdata;
 479                     for ( int i = 0; i < cElements; i++ )
 480                     {
 481                         VARIANTARG& oleElement = variant_data[i];
 482                         wxVariant vElement;
 483                         if ( !wxConvertOleToVariant(oleElement, vElement) )
 484                         {
 485                             ok = false;
 486                             variant.ClearList();
 487                             break;
 488                         }
 489
 490                         variant.Append(vElement);
 491                     }
 492                 }
 493                 break;
 494
 495             case VT_BSTR:
 496                 {
 497                     wxArrayString strings;
 498                     BSTR *string_val=(BSTR*)pvdata;
 499                     for ( int i = 0; i < cElements; ++i )
 500                     {
 501                         wxString str=wxConvertStringFromOle(*string_val);
 502                         strings.Add(str);
 503                         ++string_val;
 504                     }
 505                     variant=strings;
 506                 }
 507                 break;
 508
 509             default:
 510                 wxLogDebug(wxT("unhandled VT_ARRAY type %x in wxConvertOleToVariant"),
 511                            oleVariant.vt & VT_TYPEMASK);
 512                 variant = wxVariant();
 513                 ok = false;
 514                 break;
 515         }
 516
 517         SafeArrayUnaccessData(oleVariant.parray);
 518     }
 519     else if ( oleVariant.vt & VT_BYREF )
 520     {
 521         switch ( oleVariant.vt & VT_TYPEMASK )
 522         {
 523             case VT_VARIANT:
 524                 {
 525                     VARIANTARG& oleReference = *((LPVARIANT)oleVariant.byref);
 526                     if (!wxConvertOleToVariant(oleReference,variant))
 527                         return false;
 528                     break;
 529                 }
 530
 531             default:
 532                 wxLogError(wxT("wxAutomationObject::ConvertOleToVariant: [as yet] unhandled reference %X"),
 533                             oleVariant.vt);
 534                 return false;
 535         }
 536     }
 537     else // simply type (not array or reference)
 538     {
 539         switch ( oleVariant.vt & VT_TYPEMASK )
 540         {
 541             case VT_ERROR:
 542                 variant.SetData(new wxVariantDataErrorCode(oleVariant.scode));
 543                 break;
 544
 545             case VT_CY:
 546                 variant.SetData(new wxVariantDataCurrency(oleVariant.cyVal));
 547                 break;
 548
 549             case VT_BSTR:
 550                 {
 551                     wxString str(wxConvertStringFromOle(oleVariant.bstrVal));
 552                     variant = str;
 553                 }
 554                 break;
 555
 556             case VT_DATE:
 557 #if wxUSE_DATETIME
 558                 {
 559                     SYSTEMTIME st;
 560                     VariantTimeToSystemTime(oleVariant.date, &st);
 561
 562                     wxDateTime date;
 563                     date.SetFromMSWSysTime(st);
 564                     variant = date;
 565                 }
 566 #endif // wxUSE_DATETIME
 567                 break;
 568
 569                 // See the comment before the __VISUALC6__ test above.
 570 #if wxUSE_LONGLONG && !defined(__VISUALC6__)
 571             case VT_I8:
 572                 variant = wxLongLong(oleVariant.llVal);
 573                 break;
 574 #endif // wxUSE_LONGLONG
 575
 576             case VT_I4:
 577                 variant = (long) oleVariant.lVal;
 578                 break;
 579
 580             case VT_I2:
 581                 variant = (long) oleVariant.iVal;
 582                 break;
 583
 584             case VT_BOOL:
 585                 variant = oleVariant.boolVal != 0;
 586                 break;
 587
 588             case VT_R4:
 589                 variant = oleVariant.fltVal;
 590                 break;
 591
 592             case VT_R8:
 593                 variant = oleVariant.dblVal;
 594                 break;
 595
 596             case VT_DISPATCH:
 597                 variant = (void*) oleVariant.pdispVal;
 598                 break;
 599
 600             case VT_NULL:
 601                 variant.MakeNull();
 602                 break;
 603
 604             case VT_EMPTY:
 605                 break;    // Ignore Empty Variant, used only during destruction of objects
 606
 607             default:
 608                 wxLogError(wxT("wxAutomationObject::ConvertOleToVariant: Unknown variant value type %X -> %X"),
 609                            oleVariant.vt,oleVariant.vt&VT_TYPEMASK);
 610                 return false;
 611         }
 612     }
 613
 614     return ok;
 615 }
 616
 617 #endif // wxUSE_VARIANT
 618
 619
 620 // ----------------------------------------------------------------------------
 621 // Debug support
 622 // ----------------------------------------------------------------------------
 623
 624 #if wxUSE_DATAOBJ
 625
 626 #if wxDEBUG_LEVEL && (( defined(__VISUALC__) && (__VISUALC__ > 1000) ))
 627 static wxString GetIidName(REFIID riid)
 628 {
 629   // an association between symbolic name and numeric value of an IID
 630   struct KNOWN_IID {
 631     const IID  *pIid;
 632     const wxChar *szName;
 633   };
 634
 635   // construct the table containing all known interfaces
 636   #define ADD_KNOWN_IID(name) { &IID_I##name, wxT(#name) }
 637
 638   static const KNOWN_IID aKnownIids[] = {
 639     ADD_KNOWN_IID(AdviseSink),
 640     ADD_KNOWN_IID(AdviseSink2),
 641     ADD_KNOWN_IID(BindCtx),
 642     ADD_KNOWN_IID(ClassFactory),
 643 #if ( !defined( __VISUALC__) || (__VISUALC__!=1010) )
 644     ADD_KNOWN_IID(ContinueCallback),
 645     ADD_KNOWN_IID(EnumOleDocumentViews),
 646     ADD_KNOWN_IID(OleCommandTarget),
 647     ADD_KNOWN_IID(OleDocument),
 648     ADD_KNOWN_IID(OleDocumentSite),
 649     ADD_KNOWN_IID(OleDocumentView),
 650     ADD_KNOWN_IID(Print),
 651 #endif
 652     ADD_KNOWN_IID(DataAdviseHolder),
 653     ADD_KNOWN_IID(DataObject),
 654     ADD_KNOWN_IID(Debug),
 655     ADD_KNOWN_IID(DebugStream),
 656     ADD_KNOWN_IID(DfReserved1),
 657     ADD_KNOWN_IID(DfReserved2),
 658     ADD_KNOWN_IID(DfReserved3),
 659     ADD_KNOWN_IID(Dispatch),
 660     ADD_KNOWN_IID(DropSource),
 661     ADD_KNOWN_IID(DropTarget),
 662     ADD_KNOWN_IID(EnumCallback),
 663     ADD_KNOWN_IID(EnumFORMATETC),
 664     ADD_KNOWN_IID(EnumGeneric),
 665     ADD_KNOWN_IID(EnumHolder),
 666     ADD_KNOWN_IID(EnumMoniker),
 667     ADD_KNOWN_IID(EnumOLEVERB),
 668     ADD_KNOWN_IID(EnumSTATDATA),
 669     ADD_KNOWN_IID(EnumSTATSTG),
 670     ADD_KNOWN_IID(EnumString),
 671     ADD_KNOWN_IID(EnumUnknown),
 672     ADD_KNOWN_IID(EnumVARIANT),
 673     ADD_KNOWN_IID(ExternalConnection),
 674     ADD_KNOWN_IID(InternalMoniker),
 675     ADD_KNOWN_IID(LockBytes),
 676     ADD_KNOWN_IID(Malloc),
 677     ADD_KNOWN_IID(Marshal),
 678     ADD_KNOWN_IID(MessageFilter),
 679     ADD_KNOWN_IID(Moniker),
 680     ADD_KNOWN_IID(OleAdviseHolder),
 681     ADD_KNOWN_IID(OleCache),
 682     ADD_KNOWN_IID(OleCache2),
 683     ADD_KNOWN_IID(OleCacheControl),
 684     ADD_KNOWN_IID(OleClientSite),
 685     ADD_KNOWN_IID(OleContainer),
 686     ADD_KNOWN_IID(OleInPlaceActiveObject),
 687     ADD_KNOWN_IID(OleInPlaceFrame),
 688     ADD_KNOWN_IID(OleInPlaceObject),
 689     ADD_KNOWN_IID(OleInPlaceSite),
 690     ADD_KNOWN_IID(OleInPlaceUIWindow),
 691     ADD_KNOWN_IID(OleItemContainer),
 692     ADD_KNOWN_IID(OleLink),
 693     ADD_KNOWN_IID(OleManager),
 694     ADD_KNOWN_IID(OleObject),
 695     ADD_KNOWN_IID(OlePresObj),
 696     ADD_KNOWN_IID(OleWindow),
 697     ADD_KNOWN_IID(PSFactory),
 698     ADD_KNOWN_IID(ParseDisplayName),
 699     ADD_KNOWN_IID(Persist),
 700     ADD_KNOWN_IID(PersistFile),
 701     ADD_KNOWN_IID(PersistStorage),
 702     ADD_KNOWN_IID(PersistStream),
 703     ADD_KNOWN_IID(ProxyManager),
 704     ADD_KNOWN_IID(RootStorage),
 705     ADD_KNOWN_IID(RpcChannel),
 706     ADD_KNOWN_IID(RpcProxy),
 707     ADD_KNOWN_IID(RpcStub),
 708     ADD_KNOWN_IID(RunnableObject),
 709     ADD_KNOWN_IID(RunningObjectTable),
 710     ADD_KNOWN_IID(StdMarshalInfo),
 711     ADD_KNOWN_IID(Storage),
 712     ADD_KNOWN_IID(Stream),
 713     ADD_KNOWN_IID(StubManager),
 714     ADD_KNOWN_IID(Unknown),
 715     ADD_KNOWN_IID(ViewObject),
 716     ADD_KNOWN_IID(ViewObject2),
 717   };
 718
 719   // don't clobber preprocessor name space
 720   #undef ADD_KNOWN_IID
 721
 722   // try to find the interface in the table
 723   for ( size_t ui = 0; ui < WXSIZEOF(aKnownIids); ui++ ) {
 724     if ( riid == *aKnownIids[ui].pIid ) {
 725       return aKnownIids[ui].szName;
 726     }
 727   }
 728
 729 #ifndef __WXWINCE__
 730   // unknown IID, just transform to string
 731   Uuid uuid(riid);
 732   return wxString((const wxChar *)uuid);
 733 #else
 734   return wxEmptyString;
 735 #endif
 736 }
 737
 738 WXDLLEXPORT void wxLogQueryInterface(const wxChar *szInterface, REFIID riid)
 739 {
 740   wxLogTrace(wxTRACE_OleCalls, wxT("%s::QueryInterface (iid = %s)"),
 741              szInterface, GetIidName(riid).c_str());
 742 }
 743
 744 WXDLLEXPORT void wxLogAddRef(const wxChar *szInterface, ULONG cRef)
 745 {
 746   wxLogTrace(wxTRACE_OleCalls, wxT("After %s::AddRef: m_cRef = %d"), szInterface, cRef + 1);
 747 }
 748
 749 WXDLLEXPORT void wxLogRelease(const wxChar *szInterface, ULONG cRef)
 750 {
 751   wxLogTrace(wxTRACE_OleCalls, wxT("After %s::Release: m_cRef = %d"), szInterface, cRef - 1);
 752 }
 753
 754 #endif  // wxDEBUG_LEVEL
 755
 756 #endif // wxUSE_DATAOBJ
 757
 758 #endif // __CYGWIN10__
 759
 760 #endif // wxUSE_OLE