src/msw/volume.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/volume.cpp
   3 // Purpose:     wxFSVolume - encapsulates system volume information
   4 // Author:      George Policello
   5 // Modified by:
   6 // Created:     28 Jan 02
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2002 George Policello
   9 // Licence:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "fsvolume.h"
  22 #endif
  23
  24 #include "wx/wxprec.h"
  25
  26 #ifdef __BORLANDC__
  27     #pragma hdrstop
  28 #endif
  29
  30 #if wxUSE_FSVOLUME
  31
  32 #ifndef WX_PRECOMP
  33     #include "wx/icon.h"
  34     #include "wx/intl.h"
  35 #endif // WX_PRECOMP
  36
  37 #include "wx/dir.h"
  38 #include "wx/hashmap.h"
  39 #include "wx/dynlib.h"
  40 #include "wx/arrimpl.cpp"
  41
  42 #include "wx/volume.h"
  43
  44 #include <shellapi.h>
  45
  46 #ifndef SHGetFileInfo
  47 #ifdef UNICODE
  48 #define SHGetFileInfo SHGetFileInfoW
  49 #else
  50 #define SHGetFileInfo SHGetFileInfoA
  51 #endif
  52 #endif
  53
  54 #ifndef SHGFI_ATTRIBUTES
  55     #define SHGFI_ATTRIBUTES 2048
  56 #endif
  57
  58 #ifndef SFGAO_READONLY
  59     #define SFGAO_READONLY 0x00040000L
  60 #endif
  61
  62 #ifndef SFGAO_REMOVABLE
  63     #define SFGAO_REMOVABLE 0x02000000L
  64 #endif
  65
  66 #ifndef SHGFI_DISPLAYNAME
  67     #define SHGFI_DISPLAYNAME 512
  68 #endif
  69
  70 #ifndef SHGFI_ICON
  71     #define SHGFI_ICON 256
  72 #endif
  73
  74 #ifndef SHGFI_SMALLICON
  75      #define SHGFI_SMALLICON 1
  76 #endif
  77
  78 #ifndef SHGFI_SHELLICONSIZE
  79     #define SHGFI_SHELLICONSIZE 4
  80 #endif
  81
  82 #ifndef SHGFI_OPENICON
  83     #define SHGFI_OPENICON 2
  84 #endif
  85
  86 //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  87 // Dynamic library function defs.
  88 //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  89
  90 static wxDynamicLibrary s_mprLib;
  91
  92 typedef DWORD (WINAPI* WNetOpenEnumPtr)(DWORD, DWORD, DWORD, LPNETRESOURCE, LPHANDLE);
  93 typedef DWORD (WINAPI* WNetEnumResourcePtr)(HANDLE, LPDWORD, LPVOID, LPDWORD);
  94 typedef DWORD (WINAPI* WNetCloseEnumPtr)(HANDLE);
  95
  96 static WNetOpenEnumPtr s_pWNetOpenEnum;
  97 static WNetEnumResourcePtr s_pWNetEnumResource;
  98 static WNetCloseEnumPtr s_pWNetCloseEnum;
  99
 100 //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 101 // Globals/Statics
 102 //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 103 static long s_cancelSearch = FALSE;
 104
 105 struct FileInfo : public wxObject
 106 {
 107     FileInfo(unsigned flag=0, wxFSVolumeKind type=wxFS_VOL_OTHER) :
 108         m_flags(flag), m_type(type) {}
 109
 110     FileInfo(const FileInfo& other) { *this = other; }
 111     FileInfo& operator=(const FileInfo& other)
 112     {
 113         m_flags = other.m_flags;
 114         m_type = other.m_type;
 115         return *this;
 116     }
 117
 118     unsigned m_flags;
 119     wxFSVolumeKind m_type;
 120 };
 121 WX_DECLARE_STRING_HASH_MAP(FileInfo, FileInfoMap);
 122 static FileInfoMap s_fileInfo(25);
 123
 124 //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 125 // Other initialization.
 126 //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 127 #if wxUSE_GUI
 128 // already in wx/iconbndl.h
 129 // WX_DEFINE_OBJARRAY(wxIconArray);
 130 #endif
 131
 132 //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 133 // Local helper functions.
 134 //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 135
 136 //=============================================================================
 137 // Function: GetBasicFlags
 138 // Purpose: Set basic flags, primarily wxFS_VOL_REMOTE and wxFS_VOL_REMOVABLE.
 139 // Notes: - Local and mapped drives are mounted by definition.  We have no
 140 //          way to determine mounted status of network drives, so assume that
 141 //          all drives are mounted, and let the caller decide otherwise.
 142 //        - Other flags are 'best guess' from type of drive.  The system will
 143 //          not report the file attributes with any degree of accuracy.
 144 //=============================================================================
 145 static unsigned GetBasicFlags(const wxChar* filename)
 146 {
 147     unsigned flags = wxFS_VOL_MOUNTED;
 148
 149     //----------------------------------
 150     // 'Best Guess' based on drive type.
 151     //----------------------------------
 152     wxFSVolumeKind type;
 153     switch(GetDriveType(filename))
 154     {
 155     case DRIVE_FIXED:
 156         type = wxFS_VOL_DISK;
 157         break;
 158
 159     case DRIVE_REMOVABLE:
 160         flags |= wxFS_VOL_REMOVABLE;
 161         type = wxFS_VOL_FLOPPY;
 162         break;
 163
 164     case DRIVE_CDROM:
 165         flags |= wxFS_VOL_REMOVABLE | wxFS_VOL_READONLY;
 166         type = wxFS_VOL_CDROM;
 167         break;
 168
 169     case DRIVE_REMOTE:
 170         flags |= wxFS_VOL_REMOTE;
 171         type = wxFS_VOL_NETWORK;
 172         break;
 173
 174     case DRIVE_NO_ROOT_DIR:
 175         flags &= ~wxFS_VOL_MOUNTED;
 176         type = wxFS_VOL_OTHER;
 177         break;
 178
 179     default:
 180         type = wxFS_VOL_OTHER;
 181         break;
 182     }
 183
 184     //-----------------------------------------------------------------------
 185     // The following will most likely will not modify anything not set above,
 186     // and will not work at all for network shares or empty CD ROM drives.
 187     // But it is a good check if the Win API ever gets better about reporting
 188     // this information.
 189     //-----------------------------------------------------------------------
 190     SHFILEINFO fi;
 191     long rc;
 192     rc = SHGetFileInfo(filename, 0, &fi, sizeof(fi), SHGFI_ATTRIBUTES );
 193     if (!rc)
 194     {
 195         wxLogError(_("Cannot read typename from '%s'!"), filename);
 196     }
 197     else
 198     {
 199         if (fi.dwAttributes & SFGAO_READONLY)
 200             flags |= wxFS_VOL_READONLY;
 201         if (fi.dwAttributes & SFGAO_REMOVABLE)
 202             flags |= wxFS_VOL_REMOVABLE;
 203     }
 204
 205     //------------------
 206     // Flags are cached.
 207     //------------------
 208     s_fileInfo[filename] = FileInfo(flags, type);
 209
 210     return flags;
 211 } // GetBasicFlags
 212
 213 //=============================================================================
 214 // Function: FilteredAdd
 215 // Purpose: Add a file to the list if it meets the filter requirement.
 216 // Notes: - See GetBasicFlags for remarks about the Mounted flag.
 217 //=============================================================================
 218 static bool FilteredAdd(wxArrayString& list, const wxChar* filename,
 219                         unsigned flagsSet, unsigned flagsUnset)
 220 {
 221     bool accept = TRUE;
 222     unsigned flags = GetBasicFlags(filename);
 223
 224     if (flagsSet & wxFS_VOL_MOUNTED && !(flags & wxFS_VOL_MOUNTED))
 225         accept = FALSE;
 226     else if (flagsUnset & wxFS_VOL_MOUNTED && (flags & wxFS_VOL_MOUNTED))
 227         accept = FALSE;
 228     else if (flagsSet & wxFS_VOL_REMOVABLE && !(flags & wxFS_VOL_REMOVABLE))
 229         accept = FALSE;
 230     else if (flagsUnset & wxFS_VOL_REMOVABLE && (flags & wxFS_VOL_REMOVABLE))
 231         accept = FALSE;
 232     else if (flagsSet & wxFS_VOL_READONLY && !(flags & wxFS_VOL_READONLY))
 233         accept = FALSE;
 234     else if (flagsUnset & wxFS_VOL_READONLY && (flags & wxFS_VOL_READONLY))
 235         accept = FALSE;
 236     else if (flagsSet & wxFS_VOL_REMOTE && !(flags & wxFS_VOL_REMOTE))
 237         accept = FALSE;
 238     else if (flagsUnset & wxFS_VOL_REMOTE && (flags & wxFS_VOL_REMOTE))
 239         accept = FALSE;
 240
 241     // Add to the list if passed the filter.
 242     if (accept)
 243         list.Add(filename);
 244
 245     return accept;
 246 } // FilteredAdd
 247
 248 //=============================================================================
 249 // Function: BuildListFromNN
 250 // Purpose: Append or remove items from the list
 251 // Notes: - There is no way to find all disconnected NN items, or even to find
 252 //          all items while determining which are connected and not.  So this
 253 //          function will find either all items or connected items.
 254 //=============================================================================
 255 static void BuildListFromNN(wxArrayString& list, NETRESOURCE* pResSrc,
 256                             unsigned flagsSet, unsigned flagsUnset)
 257 {
 258     HANDLE hEnum;
 259     int rc;
 260
 261     //-----------------------------------------------
 262     // Scope may be all drives or all mounted drives.
 263     //-----------------------------------------------
 264     unsigned scope = RESOURCE_GLOBALNET;
 265     if (flagsSet & wxFS_VOL_MOUNTED)
 266         scope = RESOURCE_CONNECTED;
 267
 268     //----------------------------------------------------------------------
 269     // Enumerate all items, adding only non-containers (ie. network shares).
 270     // Containers cause a recursive call to this function for their own
 271     // enumeration.
 272     //----------------------------------------------------------------------
 273     if (rc = s_pWNetOpenEnum(scope, RESOURCETYPE_DISK, 0, pResSrc, &hEnum), rc == NO_ERROR)
 274     {
 275         DWORD count = 1;
 276         DWORD size = 256;
 277         NETRESOURCE* pRes = (NETRESOURCE*)malloc(size);
 278         memset(pRes, 0, sizeof(NETRESOURCE));
 279         while (rc = s_pWNetEnumResource(hEnum, &count, pRes, &size), rc == NO_ERROR || rc == ERROR_MORE_DATA)
 280         {
 281             if (s_cancelSearch)
 282                 break;
 283
 284             if (rc == ERROR_MORE_DATA)
 285             {
 286                 pRes = (NETRESOURCE*)realloc(pRes, size);
 287                 count = 1;
 288             }
 289             else if (count == 1)
 290             {
 291                 // Enumerate the container.
 292                 if (pRes->dwUsage & RESOURCEUSAGE_CONTAINER)
 293                 {
 294                     BuildListFromNN(list, pRes, flagsSet, flagsUnset);
 295                 }
 296
 297                 // Add the network share.
 298                 else
 299                 {
 300                     wxString filename(pRes->lpRemoteName);
 301
 302                     if (filename.Len())
 303                     {
 304                         if (filename.Last() != '\\')
 305                             filename.Append('\\');
 306
 307                         // The filter function will not know mounted from unmounted, and neither do we unless
 308                         // we are iterating using RESOURCE_CONNECTED, in which case they all are mounted.
 309                         // Volumes on disconnected servers, however, will correctly show as unmounted.
 310                         FilteredAdd(list, filename, flagsSet, flagsUnset&~wxFS_VOL_MOUNTED);
 311                         if (scope == RESOURCE_GLOBALNET)
 312                             s_fileInfo[filename].m_flags &= ~wxFS_VOL_MOUNTED;
 313                     }
 314                 }
 315             }
 316             else if (count == 0)
 317                 break;
 318         }
 319         free(pRes);
 320         s_pWNetCloseEnum(hEnum);
 321     }
 322 } // BuildListFromNN
 323
 324 //=============================================================================
 325 // Function: CompareFcn
 326 // Purpose: Used to sort the NN list alphabetically, case insensitive.
 327 //=============================================================================
 328 static int CompareFcn(const wxString& first, const wxString& second)
 329 {
 330     return wxStricmp(first.c_str(), second.c_str());
 331 } // CompareFcn
 332
 333 //=============================================================================
 334 // Function: BuildRemoteList
 335 // Purpose: Append Network Neighborhood items to the list.
 336 // Notes: - Mounted gets transalated into Connected.  FilteredAdd is told
 337 //          to ignore the Mounted flag since we need to handle it in a weird
 338 //          way manually.
 339 //        - The resulting list is sorted alphabetically.
 340 //=============================================================================
 341 static bool BuildRemoteList(wxArrayString& list, NETRESOURCE* pResSrc,
 342                             unsigned flagsSet, unsigned flagsUnset)
 343 {
 344     // NN query depends on dynamically loaded library.
 345     if (!s_pWNetOpenEnum || !s_pWNetEnumResource || !s_pWNetCloseEnum)
 346     {
 347         wxLogError(_("Failed to load mpr.dll."));
 348         return FALSE;
 349     }
 350
 351     // Don't waste time doing the work if the flags conflict.
 352     if (flagsSet & wxFS_VOL_MOUNTED && flagsUnset & wxFS_VOL_MOUNTED)
 353         return FALSE;
 354
 355     //----------------------------------------------
 356     // Generate the list according to the flags set.
 357     //----------------------------------------------
 358     BuildListFromNN(list, pResSrc, flagsSet, flagsUnset);
 359     list.Sort(CompareFcn);
 360
 361     //-------------------------------------------------------------------------
 362     // If mounted only is requested, then we only need one simple pass.
 363     // Otherwise, we need to build a list of all NN volumes and then apply the
 364     // list of mounted drives to it.
 365     //-------------------------------------------------------------------------
 366     if (!(flagsSet & wxFS_VOL_MOUNTED))
 367     {
 368         // generate.
 369         wxArrayString mounted;
 370         BuildListFromNN(mounted, pResSrc, flagsSet | wxFS_VOL_MOUNTED, flagsUnset & ~wxFS_VOL_MOUNTED);
 371         mounted.Sort(CompareFcn);
 372
 373         // apply list from bottom to top to preserve indexes if removing items.
 374         int iList = list.GetCount()-1;
 375         int iMounted;
 376         for (iMounted = mounted.GetCount()-1; iMounted >= 0 && iList >= 0; iMounted--)
 377         {
 378             int compare;
 379             wxString all(list[iList]);
 380             wxString mount(mounted[iMounted]);
 381
 382             while (compare =
 383                      wxStricmp(list[iList].c_str(), mounted[iMounted].c_str()),
 384                    compare > 0 && iList >= 0)
 385             {
 386                 iList--;
 387                 all = list[iList];
 388             }
 389
 390
 391             if (compare == 0)
 392             {
 393                 // Found the element.  Remove it or mark it mounted.
 394                 if (flagsUnset & wxFS_VOL_MOUNTED)
 395                     list.Remove(iList);
 396                 else
 397                     s_fileInfo[list[iList]].m_flags |= wxFS_VOL_MOUNTED;
 398
 399             }
 400
 401             iList--;
 402         }
 403     }
 404
 405     return TRUE;
 406 } // BuildRemoteList
 407
 408 //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 409 // wxFSVolume
 410 //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 411
 412 //=============================================================================
 413 // Function: GetVolumes
 414 // Purpose: Generate and return a list of all volumes (drives) available.
 415 // Notes:
 416 //=============================================================================
 417 wxArrayString wxFSVolume::GetVolumes(int flagsSet, int flagsUnset)
 418 {
 419     InterlockedExchange(&s_cancelSearch, FALSE);     // reset
 420
 421     if (!s_mprLib.IsLoaded() && s_mprLib.Load(_T("mpr.dll")))
 422     {
 423 #ifdef UNICODE
 424         s_pWNetOpenEnum = (WNetOpenEnumPtr)s_mprLib.GetSymbol(_T("WNetOpenEnumW"));
 425         s_pWNetEnumResource = (WNetEnumResourcePtr)s_mprLib.GetSymbol("WNetEnumResourceW");
 426 #else
 427         s_pWNetOpenEnum = (WNetOpenEnumPtr)s_mprLib.GetSymbol(_T("WNetOpenEnumA"));
 428         s_pWNetEnumResource = (WNetEnumResourcePtr)s_mprLib.GetSymbol(_T("WNetEnumResourceA"));
 429 #endif
 430         s_pWNetCloseEnum = (WNetCloseEnumPtr)s_mprLib.GetSymbol(_T("WNetCloseEnum"));
 431     }
 432
 433     wxArrayString list;
 434
 435     //-------------------------------
 436     // Local and mapped drives first.
 437     //-------------------------------
 438     // Allocate the required space for the API call.
 439     size_t chars = GetLogicalDriveStrings(0, 0);
 440     TCHAR* buf = new TCHAR[chars+1];
 441
 442     // Get the list of drives.
 443     chars = GetLogicalDriveStrings(chars, buf);
 444
 445     // Parse the list into an array, applying appropriate filters.
 446     TCHAR *pVol;
 447     pVol = buf;
 448     while (*pVol)
 449     {
 450         FilteredAdd(list, pVol, flagsSet, flagsUnset);
 451         pVol = pVol + wxStrlen(pVol) + 1;
 452     }
 453
 454     // Cleanup.
 455     delete[] buf;
 456
 457     //---------------------------
 458     // Network Neighborhood next.
 459     //---------------------------
 460
 461     // not exclude remote and not removable
 462     if (!(flagsUnset & wxFS_VOL_REMOTE) &&
 463         !(flagsSet & wxFS_VOL_REMOVABLE)
 464        )
 465     {
 466         // The returned list will be sorted alphabetically.  We don't pass
 467         // our in since we don't want to change to order of the local drives.
 468         wxArrayString nn;
 469         if (BuildRemoteList(nn, 0, flagsSet, flagsUnset))
 470         {
 471             for (size_t idx = 0; idx < nn.GetCount(); idx++)
 472                 list.Add(nn[idx]);
 473         }
 474     }
 475
 476     return list;
 477 } // GetVolumes
 478
 479 //=============================================================================
 480 // Function: CancelSearch
 481 // Purpose: Instruct an active search to stop.
 482 // Notes: - This will only sensibly be called by a thread other than the one
 483 //          performing the search.  This is the only thread-safe function
 484 //          provided by the class.
 485 //=============================================================================
 486 void wxFSVolume::CancelSearch()
 487 {
 488     InterlockedExchange(&s_cancelSearch, TRUE);
 489 } // CancelSearch
 490
 491 //=============================================================================
 492 // Function: constructor
 493 // Purpose: default constructor
 494 //=============================================================================
 495 wxFSVolume::wxFSVolume()
 496 {
 497     m_isOk = FALSE;
 498 } // wxVolume
 499
 500 //=============================================================================
 501 // Function: constructor
 502 // Purpose: constructor that calls Create
 503 //=============================================================================
 504 wxFSVolume::wxFSVolume(const wxString& name)
 505 {
 506     Create(name);
 507 } // wxVolume
 508
 509 //=============================================================================
 510 // Function: Create
 511 // Purpose: Finds, logs in, etc. to the request volume.
 512 //=============================================================================
 513 bool wxFSVolume::Create(const wxString& name)
 514 {
 515     // assume fail.
 516     m_isOk = FALSE;
 517
 518     // supplied.
 519     m_volName = name;
 520
 521     // Display name.
 522     SHFILEINFO fi;
 523     long rc = SHGetFileInfo(m_volName, 0, &fi, sizeof(fi), SHGFI_DISPLAYNAME);
 524     if (!rc)
 525     {
 526         wxLogError(_("Cannot read typename from '%s'!"), m_volName.c_str());
 527         return m_isOk;
 528     }
 529     m_dispName = fi.szDisplayName;
 530
 531 #if wxUSE_GUI
 532
 533     m_icons.Alloc(wxFS_VOL_ICO_MAX);
 534     int idx;
 535     wxIcon null;
 536     for (idx = 0; idx < wxFS_VOL_ICO_MAX; idx++)
 537         m_icons.Add(null);
 538
 539 #endif
 540
 541     // all tests passed.
 542     return m_isOk = TRUE;
 543 } // Create
 544
 545 //=============================================================================
 546 // Function: IsOk
 547 // Purpose: returns TRUE if the volume is legal.
 548 // Notes: For fixed disks, it must exist.  For removable disks, it must also
 549 //        be present.  For Network Shares, it must also be logged in, etc.
 550 //=============================================================================
 551 bool wxFSVolume::IsOk() const
 552 {
 553     return m_isOk;
 554 } // IsOk
 555
 556 //=============================================================================
 557 // Function: GetKind
 558 // Purpose: Return the type of the volume.
 559 //=============================================================================
 560 wxFSVolumeKind wxFSVolume::GetKind() const
 561 {
 562     if (!m_isOk)
 563         return wxFS_VOL_OTHER;
 564
 565     FileInfoMap::iterator itr = s_fileInfo.find(m_volName);
 566     if (itr == s_fileInfo.end())
 567         return wxFS_VOL_OTHER;
 568
 569     return itr->second.m_type;
 570 }
 571
 572 //=============================================================================
 573 // Function: GetFlags
 574 // Purpose: Return the caches flags for this volume.
 575 // Notes: - Returns -1 if no flags were cached.
 576 //=============================================================================
 577 int wxFSVolume::GetFlags() const
 578 {
 579     if (!m_isOk)
 580         return -1;
 581
 582     FileInfoMap::iterator itr = s_fileInfo.find(m_volName);
 583     if (itr == s_fileInfo.end())
 584         return -1;
 585
 586     return itr->second.m_flags;
 587 } // GetFlags
 588
 589 #if wxUSE_GUI
 590
 591 //=============================================================================
 592 // Function: GetIcon
 593 // Purpose: return the requested icon.
 594 //=============================================================================
 595 wxIcon wxFSVolume::GetIcon(wxFSIconType type) const
 596 {
 597     wxCHECK_MSG(type < (int)m_icons.GetCount(), wxNullIcon,
 598                 _T("Invalid request for icon type!"));
 599     wxCHECK_MSG( type >= 0 && (size_t)type < m_icons.GetCount(),
 600                  wxIcon(),
 601                  _T("invalid icon index") );
 602
 603     // Load on demand.
 604     if (m_icons[type].IsNull())
 605     {
 606         unsigned flags = 0;
 607         switch (type)
 608         {
 609         case wxFS_VOL_ICO_SMALL:
 610             flags = SHGFI_ICON | SHGFI_SMALLICON;
 611             break;
 612
 613         case wxFS_VOL_ICO_LARGE:
 614             flags = SHGFI_ICON | SHGFI_SHELLICONSIZE;
 615             break;
 616
 617         case wxFS_VOL_ICO_SEL_SMALL:
 618             flags = SHGFI_ICON | SHGFI_SMALLICON | SHGFI_OPENICON;
 619             break;
 620
 621         case wxFS_VOL_ICO_SEL_LARGE:
 622             flags = SHGFI_ICON | SHGFI_SHELLICONSIZE | SHGFI_OPENICON;
 623             break;
 624
 625         case wxFS_VOL_ICO_MAX:
 626             wxFAIL_MSG(_T("wxFS_VOL_ICO_MAX is not valid icon type"));
 627             break;
 628         }
 629
 630         SHFILEINFO fi;
 631         long rc = SHGetFileInfo(m_volName, 0, &fi, sizeof(fi), flags);
 632         m_icons[type].SetHICON((WXHICON)fi.hIcon);
 633         if (!rc || !fi.hIcon)
 634             wxLogError(_("Cannot load icon from '%s'."), m_volName.c_str());
 635     }
 636
 637     return m_icons[type];
 638 } // GetIcon
 639
 640 #endif // wxUSE_GUI
 641
 642 #endif // wxUSE_FSVOLUME
 643