git.oblomov.eu Git - wine/blob - dlls/shell32/pidl.c

   1 /*
   2  *      pidl Handling
   3  *
   4  *      Copyright 1998  Juergen Schmied
   5  *
   6  * NOTES
   7  *  a pidl == NULL means desktop and is legal
   8  *
   9  */
  10
  11 #include <ctype.h>
  12 #include <stdlib.h>
  13 #include <string.h>
  14 #include "ole2.h"
  15 #include "debug.h"
  16 #include "shlobj.h"
  17 #include "shell.h"
  18 #include "winerror.h"
  19 #include "winnls.h"
  20 #include "winproc.h"
  21 #include "commctrl.h"
  22 #include "winversion.h"
  23 #include "shell32_main.h"
  24
  25 #include "pidl.h"
  26
  27 void pdump (LPCITEMIDLIST pidl)
  28 {       DWORD type;
  29         CHAR * szData;
  30         CHAR * szShortName;
  31         LPITEMIDLIST pidltemp = pidl;
  32         if (! pidltemp)
  33         { TRACE(pidl,"-------- pidl = NULL (Root)\n");
  34           return;
  35         }
  36         TRACE(pidl,"-------- pidl=%p \n", pidl);
  37         if (pidltemp->mkid.cb)
  38         { do
  39           { type   = _ILGetDataPointer(pidltemp)->type;
  40             szData = _ILGetTextPointer(type, _ILGetDataPointer(pidltemp));
  41             szShortName = _ILGetSTextPointer(type, _ILGetDataPointer(pidltemp));
  42
  43             TRACE(pidl,"---- pidl=%p size=%u type=%lx %s, (%s)\n",
  44                        pidltemp, pidltemp->mkid.cb,type,debugstr_a(szData), debugstr_a(szShortName));
  45
  46             pidltemp = ILGetNext(pidltemp);
  47           } while (pidltemp->mkid.cb);
  48           return;
  49         }
  50         else
  51           TRACE(pidl,"empty pidl (Desktop)\n");
  52 }
  53 /*************************************************************************
  54  * ILGetDisplayName                     [SHELL32.15]
  55  */
  56 BOOL WINAPI ILGetDisplayName(LPCITEMIDLIST pidl,LPSTR path)
  57 {       FIXME(shell,"pidl=%p %p semi-stub\n",pidl,path);
  58         return SHGetPathFromIDListA(pidl, path);
  59 }
  60 /*************************************************************************
  61  * ILFindLastID [SHELL32.16]
  62  */
  63 LPITEMIDLIST WINAPI ILFindLastID(LPITEMIDLIST pidl)
  64 {       LPITEMIDLIST   pidlLast = NULL;
  65
  66         TRACE(pidl,"(pidl=%p)\n",pidl);
  67
  68         if(pidl)
  69         { while(pidl->mkid.cb)
  70           { pidlLast = (LPITEMIDLIST)pidl;
  71             pidl = ILGetNext(pidl);
  72           }
  73         }
  74         return pidlLast;
  75 }
  76 /*************************************************************************
  77  * ILRemoveLastID [SHELL32.17]
  78  * NOTES
  79  *  Removes the last item
  80  */
  81 BOOL WINAPI ILRemoveLastID(LPCITEMIDLIST pidl)
  82 {       TRACE(shell,"pidl=%p\n",pidl);
  83         if (!pidl || !pidl->mkid.cb)
  84           return 0;
  85         ILFindLastID(pidl)->mkid.cb = 0;
  86         return 1;
  87 }
  88
  89 /*************************************************************************
  90  * ILClone [SHELL32.18]
  91  *
  92  * NOTES
  93  *    dupicate an idlist
  94  */
  95 LPITEMIDLIST WINAPI ILClone (LPCITEMIDLIST pidl)
  96 { DWORD    len;
  97   LPITEMIDLIST  newpidl;
  98
  99   if (!pidl)
 100     return NULL;
 101
 102   len = ILGetSize(pidl);
 103   newpidl = (LPITEMIDLIST)SHAlloc(len);
 104   if (newpidl)
 105     memcpy(newpidl,pidl,len);
 106
 107   TRACE(pidl,"pidl=%p newpidl=%p\n",pidl, newpidl);
 108   pdump(pidl);
 109
 110   return newpidl;
 111 }
 112 /*************************************************************************
 113  * ILCloneFirst [SHELL32.19]
 114  *
 115  * NOTES
 116  *  duplicates the first idlist of a complex pidl
 117  */
 118 LPITEMIDLIST WINAPI ILCloneFirst(LPCITEMIDLIST pidl)
 119 {       DWORD len;
 120         LPITEMIDLIST newpidl=NULL;
 121
 122         TRACE(pidl,"pidl=%p \n",pidl);
 123         pdump(pidl);
 124
 125         if (pidl)
 126         { len = pidl->mkid.cb;
 127           newpidl = (LPITEMIDLIST) SHAlloc (len+2);
 128           if (newpidl)
 129           { memcpy(newpidl,pidl,len);
 130             ILGetNext(newpidl)->mkid.cb = 0x00;
 131           }
 132         }
 133         TRACE(pidl,"-- newpidl=%p\n",newpidl);
 134
 135         return newpidl;
 136 }
 137 /*************************************************************************
 138  * SHILCreateFromPath   [SHELL32.28]
 139  *
 140  * NOTES
 141  *   wraper for IShellFolder::ParseDisplayName()
 142  */
 143 HRESULT WINAPI SHILCreateFromPathA (LPSTR path, LPITEMIDLIST * ppidl, DWORD attributes)
 144 {       LPSHELLFOLDER sf;
 145         WCHAR lpszDisplayName[MAX_PATH];
 146         DWORD pchEaten;
 147         HRESULT ret = E_FAIL;
 148
 149         TRACE(shell, "%s %p 0x%08lx\n",path,ppidl,attributes);
 150
 151         LocalToWideChar(lpszDisplayName, path, MAX_PATH);
 152
 153         if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 154         { ret = sf->lpvtbl->fnParseDisplayName(sf,0, NULL,lpszDisplayName,&pchEaten,ppidl,&attributes);
 155           sf->lpvtbl->fnRelease(sf);
 156         }
 157         return ret;
 158 }
 159 HRESULT WINAPI SHILCreateFromPathW (LPWSTR path, LPITEMIDLIST * ppidl, DWORD attributes)
 160 {       LPSHELLFOLDER sf;
 161         DWORD pchEaten;
 162         HRESULT ret = E_FAIL;
 163
 164         TRACE(shell, "%s %p 0x%08lx\n",debugstr_w(path),ppidl,attributes);
 165
 166         if (SUCCEEDED (SHGetDesktopFolder(&sf)))
 167         { ret = sf->lpvtbl->fnParseDisplayName(sf,0, NULL, path, &pchEaten, ppidl, &attributes);
 168           sf->lpvtbl->fnRelease(sf);
 169         }
 170         return ret;
 171 }
 172 HRESULT WINAPI SHILCreateFromPathAW (LPVOID path, LPITEMIDLIST * ppidl, DWORD attributes)
 173 {
 174         if ( VERSION_OsIsUnicode())
 175           return SHILCreateFromPathW (path, ppidl, attributes);
 176         return SHILCreateFromPathA (path, ppidl, attributes);
 177 }
 178
 179 /*************************************************************************
 180  * SHCloneSpecialIDList [SHELL32.89]
 181  *
 182  * PARAMETERS
 183  *  hwndOwner   [in]
 184  *  nFolder     [in]    CSIDL_xxxxx ??
 185  *
 186  * RETURNS
 187  *  pidl ??
 188  * NOTES
 189  *     exported by ordinal
 190  */
 191 LPITEMIDLIST WINAPI SHCloneSpecialIDList(HWND hwndOwner,DWORD nFolder,DWORD x3)
 192 {       LPITEMIDLIST ppidl;
 193         WARN(shell,"(hwnd=0x%x,csidl=0x%lx,0x%lx):semi-stub.\n",
 194                                          hwndOwner,nFolder,x3);
 195
 196         SHGetSpecialFolderLocation(hwndOwner, nFolder, &ppidl);
 197
 198         return ppidl;
 199 }
 200
 201 /*************************************************************************
 202  * ILGlobalClone [SHELL32.97]
 203  *
 204  */
 205 LPITEMIDLIST WINAPI ILGlobalClone(LPCITEMIDLIST pidl)
 206 {       DWORD    len;
 207         LPITEMIDLIST  newpidl;
 208
 209         if (!pidl)
 210           return NULL;
 211
 212         len = ILGetSize(pidl);
 213         newpidl = (LPITEMIDLIST)pCOMCTL32_Alloc(len);
 214         if (newpidl)
 215           memcpy(newpidl,pidl,len);
 216
 217         TRACE(pidl,"pidl=%p newpidl=%p\n",pidl, newpidl);
 218         pdump(pidl);
 219
 220         return newpidl;
 221 }
 222
 223 /*************************************************************************
 224  * ILIsEqual [SHELL32.21]
 225  *
 226  */
 227 BOOL WINAPI ILIsEqual(LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 228 {       LPPIDLDATA ppidldata;
 229         CHAR * szData1;
 230         CHAR * szData2;
 231
 232         LPITEMIDLIST pidltemp1 = pidl1;
 233         LPITEMIDLIST pidltemp2 = pidl2;
 234
 235         TRACE(pidl,"pidl1=%p pidl2=%p\n",pidl1, pidl2);
 236
 237         pdump (pidl1);
 238         pdump (pidl2);
 239
 240         if ( (!pidl1) || (!pidl2) )
 241         { return FALSE;
 242         }
 243
 244         if (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 245         { do
 246           { ppidldata = _ILGetDataPointer(pidltemp1);
 247             szData1 = _ILGetTextPointer(ppidldata->type, ppidldata);
 248
 249             ppidldata = _ILGetDataPointer(pidltemp2);
 250             szData2 = _ILGetTextPointer(ppidldata->type, ppidldata);
 251
 252             if (strcmp ( szData1, szData2 )!=0 )
 253               return FALSE;
 254
 255             pidltemp1 = ILGetNext(pidltemp1);
 256             pidltemp2 = ILGetNext(pidltemp2);
 257
 258           } while (pidltemp1->mkid.cb && pidltemp2->mkid.cb);
 259         }
 260         if (!pidltemp1->mkid.cb && !pidltemp2->mkid.cb)
 261         { TRACE(shell, "--- equal\n");
 262           return TRUE;
 263         }
 264
 265         return FALSE;
 266 }
 267 /*************************************************************************
 268  * ILIsParent [SHELL32.23]
 269  *
 270  */
 271 DWORD WINAPI ILIsParent( DWORD x, DWORD y, DWORD z)
 272 {       FIXME(pidl,"0x%08lx 0x%08lx 0x%08lx stub\n",x,y,z);
 273         return 0;
 274 }
 275
 276 /*************************************************************************
 277  * ILFindChild [SHELL32.24]
 278  *
 279  * NOTES
 280  *  Compares elements from pidl1 and pidl2.
 281  *  When at least the first element is equal, it gives a pointer
 282  *  to the first different element of pidl 2 back.
 283  *  Returns 0 if pidl 2 is shorter.
 284  */
 285 LPITEMIDLIST WINAPI ILFindChild(LPCITEMIDLIST pidl1,LPCITEMIDLIST pidl2)
 286 {       LPPIDLDATA ppidldata;
 287         CHAR * szData1;
 288         CHAR * szData2;
 289
 290         LPITEMIDLIST pidltemp1 = pidl1;
 291         LPITEMIDLIST pidltemp2 = pidl2;
 292         LPITEMIDLIST ret=NULL;
 293
 294         TRACE(pidl,"pidl1=%p pidl2=%p\n",pidl1, pidl2);
 295
 296         pdump (pidl1);
 297         pdump (pidl2);
 298
 299         if ( !pidl1 || !pidl1->mkid.cb)         /* pidl 1 is desktop (root) */
 300         { TRACE(shell, "--- %p\n", pidl2);
 301           return pidl2;
 302         }
 303
 304         if (pidltemp1->mkid.cb && pidltemp2->mkid.cb)
 305         { do
 306           { ppidldata = _ILGetDataPointer(pidltemp1);
 307             szData1 = _ILGetTextPointer(ppidldata->type, ppidldata);
 308
 309             ppidldata = _ILGetDataPointer(pidltemp2);
 310             szData2 = _ILGetTextPointer(ppidldata->type, ppidldata);
 311
 312             pidltemp2 = ILGetNext(pidltemp2);   /* points behind the pidl2 */
 313
 314             if (strcmp(szData1,szData2) == 0)
 315             { ret = pidltemp2;  /* found equal element */
 316             }
 317             else
 318             { if (ret)          /* different element after equal -> break */
 319               { ret = NULL;
 320                 break;
 321               }
 322             }
 323             pidltemp1 = ILGetNext(pidltemp1);
 324           } while (pidltemp1->mkid.cb && pidltemp2->mkid.cb);
 325         }
 326
 327         if (!pidltemp2->mkid.cb)
 328         { return NULL; /* complete equal or pidl 2 is shorter */
 329         }
 330
 331         TRACE(shell, "--- %p\n", ret);
 332         return ret; /* pidl 1 is shorter */
 333 }
 334
 335 /*************************************************************************
 336  * ILCombine [SHELL32.25]
 337  *
 338  * NOTES
 339  *  Concatenates two complex idlists.
 340  *  The pidl is the first one, pidlsub the next one
 341  *  Does not destroy the passed in idlists!
 342  */
 343 LPITEMIDLIST WINAPI ILCombine(LPCITEMIDLIST pidl1,LPCITEMIDLIST pidl2)
 344 { DWORD    len1,len2;
 345   LPITEMIDLIST  pidlNew;
 346
 347   TRACE(pidl,"pidl=%p pidl=%p\n",pidl1,pidl2);
 348
 349   if(!pidl1 && !pidl2)
 350   {  return NULL;
 351   }
 352
 353   pdump (pidl1);
 354   pdump (pidl2);
 355
 356   if(!pidl1)
 357   { pidlNew = ILClone(pidl2);
 358     return pidlNew;
 359   }
 360
 361   if(!pidl2)
 362   { pidlNew = ILClone(pidl1);
 363     return pidlNew;
 364   }
 365
 366   len1  = ILGetSize(pidl1)-2;
 367   len2  = ILGetSize(pidl2);
 368   pidlNew  = SHAlloc(len1+len2);
 369
 370   if (pidlNew)
 371   { memcpy(pidlNew,pidl1,len1);
 372     memcpy(((BYTE *)pidlNew)+len1,pidl2,len2);
 373   }
 374
 375 /*  TRACE(pidl,"--new pidl=%p\n",pidlNew);*/
 376   return pidlNew;
 377 }
 378 /*************************************************************************
 379  *  SHGetRealIDL [SHELL32.98]
 380  *
 381  * NOTES
 382  */
 383 LPITEMIDLIST WINAPI SHGetRealIDL(LPSHELLFOLDER lpsf, LPITEMIDLIST pidl, DWORD z)
 384 {       FIXME(pidl,"sf=%p pidl=%p 0x%04lx\n",lpsf,pidl,z);
 385         pdump (pidl);
 386         return 0;
 387 }
 388
 389 /*************************************************************************
 390  *  SHLogILFromFSIL [SHELL32.95]
 391  *
 392  * NOTES
 393  */
 394 LPITEMIDLIST WINAPI SHLogILFromFSIL(LPITEMIDLIST pidl)
 395 {       FIXME(pidl,"(pidl=%p)\n",pidl);
 396         pdump(pidl);
 397         return 0;
 398 }
 399
 400 /*************************************************************************
 401  * ILGetSize [SHELL32.152]
 402  *  gets the byte size of an idlist including zero terminator (pidl)
 403  *
 404  * PARAMETERS
 405  *  pidl ITEMIDLIST
 406  *
 407  * RETURNS
 408  *  size of pidl
 409  *
 410  * NOTES
 411  *  exported by ordinal
 412  */
 413 DWORD WINAPI ILGetSize(LPITEMIDLIST pidl)
 414 {       LPSHITEMID si = &(pidl->mkid);
 415         DWORD  len=0;
 416
 417         if (pidl)
 418         { while (si->cb)
 419           { len += si->cb;
 420             si  = (LPSHITEMID)(((LPBYTE)si)+si->cb);
 421           }
 422           len += 2;
 423         }
 424         TRACE(pidl,"pidl=%p size=%lu\n",pidl, len);
 425         return len;
 426 }
 427 /*************************************************************************
 428  * ILGetNext [SHELL32.153]
 429  *  gets the next simple pidl of a complex pidl
 430  *
 431  * PARAMETERS
 432  *  pidl ITEMIDLIST
 433  *
 434  * RETURNS
 435  *  pointer to next element
 436  *
 437  */
 438 LPITEMIDLIST WINAPI ILGetNext(LPITEMIDLIST pidl)
 439 {       LPITEMIDLIST nextpidl;
 440
 441         /* TRACE(pidl,"(pidl=%p)\n",pidl);*/
 442         if(pidl)
 443         { nextpidl = (LPITEMIDLIST)(LPBYTE)(((LPBYTE)pidl) + pidl->mkid.cb);
 444           return nextpidl;
 445         }
 446         else
 447         {  return (NULL);
 448         }
 449 }
 450 /*************************************************************************
 451  * ILAppend [SHELL32.154]
 452  *
 453  * NOTES
 454  *  Adds the single item to the idlist indicated by pidl.
 455  *  if bEnd is 0, adds the item to the front of the list,
 456  *  otherwise adds the item to the end. (???)
 457  *  Destroys the passed in idlist! (???)
 458  */
 459 LPITEMIDLIST WINAPI ILAppend(LPITEMIDLIST pidl,LPCITEMIDLIST item,BOOL bEnd)
 460 {       LPITEMIDLIST idlRet;
 461         WARN(pidl,"(pidl=%p,pidl=%p,%08u)semi-stub\n",pidl,item,bEnd);
 462         pdump (pidl);
 463         pdump (item);
 464
 465         if (_ILIsDesktop(pidl))
 466         {  idlRet = ILClone(item);
 467            if (pidl)
 468              SHFree (pidl);
 469            return idlRet;
 470         }
 471         if (bEnd)
 472         { idlRet=ILCombine(pidl,item);
 473         }
 474         else
 475         { idlRet=ILCombine(item,pidl);
 476         }
 477         SHFree(pidl);
 478         return idlRet;
 479 }
 480 /*************************************************************************
 481  * ILFree [SHELL32.155]
 482  *
 483  * NOTES
 484  *     free_check_ptr - frees memory (if not NULL)
 485  *     allocated by SHMalloc allocator
 486  *     exported by ordinal
 487  */
 488 DWORD WINAPI ILFree(LPITEMIDLIST pidl)
 489 {       TRACE(pidl,"(pidl=0x%08lx)\n",(DWORD)pidl);
 490
 491         if (!pidl)
 492           return FALSE;
 493
 494         return SHFree(pidl);
 495 }
 496 /*************************************************************************
 497  * ILGlobalFree [SHELL32.156]
 498  *
 499  */
 500 DWORD WINAPI ILGlobalFree( LPITEMIDLIST pidl)
 501 {       TRACE(pidl,"%p\n",pidl);
 502
 503         if (!pidl)
 504           return FALSE;
 505
 506         return pCOMCTL32_Free (pidl);
 507 }
 508 /*************************************************************************
 509  * ILCreateFromPath [SHELL32.157]
 510  *
 511  */
 512 LPITEMIDLIST WINAPI ILCreateFromPathA (LPSTR path)
 513 {       LPITEMIDLIST pidlnew;
 514
 515         TRACE(shell,"%s\n",path);
 516         if (SUCCEEDED (SHILCreateFromPathA (path, &pidlnew, 0)))
 517           return pidlnew;
 518         return FALSE;
 519 }
 520 LPITEMIDLIST WINAPI ILCreateFromPathW (LPWSTR path)
 521 {       LPITEMIDLIST pidlnew;
 522
 523         TRACE(shell,"%s\n",debugstr_w(path));
 524
 525         if (SUCCEEDED (SHILCreateFromPathW (path, &pidlnew, 0)))
 526           return pidlnew;
 527         return FALSE;
 528 }
 529 LPITEMIDLIST WINAPI ILCreateFromPathAW (LPVOID path)
 530 {
 531         if ( VERSION_OsIsUnicode())
 532           return ILCreateFromPathW (path);
 533         return ILCreateFromPathA (path);
 534 }
 535 /*************************************************************************
 536  *  SHSimpleIDListFromPath [SHELL32.162]
 537  *
 538  */
 539 LPITEMIDLIST WINAPI SHSimpleIDListFromPathAW (LPVOID lpszPath)
 540 {       LPCSTR  lpszElement;
 541         char    lpszTemp[MAX_PATH];
 542
 543         if (!lpszPath)
 544           return 0;
 545
 546         if ( VERSION_OsIsUnicode())
 547         { TRACE(pidl,"(path=L%s)\n",debugstr_w((LPWSTR)lpszPath));
 548           WideCharToLocal(lpszTemp, lpszPath, MAX_PATH);
 549         }
 550         else
 551         { TRACE(pidl,"(path=%s)\n",(LPSTR)lpszPath);
 552           strcpy(lpszTemp, lpszPath);
 553         }
 554
 555         lpszElement = PathFindFilenameA(lpszTemp);
 556         if( GetFileAttributesA(lpszTemp) & FILE_ATTRIBUTE_DIRECTORY )
 557         { return _ILCreateFolder(NULL, lpszElement);    /*FIXME: fill shortname */
 558         }
 559         return _ILCreateValue(NULL, lpszElement);       /*FIXME: fill shortname */
 560 }
 561 /*************************************************************************
 562  * SHGetDataFromIDListA [SHELL32.247]
 563  *
 564  */
 565 HRESULT WINAPI SHGetDataFromIDListA(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, int nFormat, LPVOID dest, int len)
 566 {       TRACE(shell,"sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
 567
 568         if (! psf || !dest )
 569           return E_INVALIDARG;
 570
 571         switch (nFormat)
 572         { case SHGDFIL_FINDDATA:
 573             {  WIN32_FIND_DATAA * pfd = dest;
 574                STRRET   lpName;
 575                CHAR     pszPath[MAX_PATH];
 576                HANDLE handle;
 577
 578                if ( len < sizeof (WIN32_FIND_DATAA))
 579                  return E_INVALIDARG;
 580
 581                psf->lpvtbl->fnAddRef(psf);
 582                psf->lpvtbl->fnGetDisplayNameOf( psf, pidl, SHGDN_FORPARSING, &lpName);
 583                psf->lpvtbl->fnRelease(psf);
 584
 585                strcpy(pszPath,lpName.u.cStr);
 586                if ((handle  = FindFirstFileA ( pszPath, pfd)))
 587                  FindClose (handle);
 588             }
 589             break;
 590           case SHGDFIL_NETRESOURCE:
 591           case SHGDFIL_DESCRIPTIONID:
 592             FIXME(shell, "SHGDFIL %i stub\n", nFormat);
 593             break;
 594           default:
 595             ERR(shell,"Unknown SHGDFIL %i, please report\n", nFormat);
 596         }
 597         return E_INVALIDARG;
 598 }
 599 /*************************************************************************
 600  * SHGetDataFromIDListW [SHELL32.247]
 601  *
 602  */
 603 HRESULT WINAPI SHGetDataFromIDListW(LPSHELLFOLDER psf, LPCITEMIDLIST pidl, int nFormat, LPVOID dest, int len)
 604 {       FIXME(shell,"sf=%p pidl=%p 0x%04x %p 0x%04x stub\n",psf,pidl,nFormat,dest,len);
 605         return SHGetDataFromIDListA( psf, pidl, nFormat, dest, len);
 606 }
 607
 608 /**************************************************************************
 609 * internal functions
 610 */
 611
 612 /**************************************************************************
 613  *  _ILCreateDesktop()
 614  *  _ILCreateMyComputer()
 615  *  _ILCreateDrive()
 616  *  _ILCreateFolder()
 617  *  _ILCreateValue()
 618  */
 619 LPITEMIDLIST WINAPI _ILCreateDesktop()
 620 {       TRACE(pidl,"()\n");
 621         return _ILCreate(PT_DESKTOP, NULL, 0);
 622 }
 623 LPITEMIDLIST WINAPI _ILCreateMyComputer()
 624 {       TRACE(pidl,"()\n");
 625         return _ILCreate(PT_MYCOMP, (void *)"My Computer", strlen ("My Computer")+1);
 626 }
 627 LPITEMIDLIST WINAPI _ILCreateDrive( LPCSTR lpszNew)
 628 {       char sTemp[4];
 629         strncpy (sTemp,lpszNew,4);
 630         sTemp[2]='\\';
 631         sTemp[3]=0x00;
 632         TRACE(pidl,"(%s)\n",sTemp);
 633         return _ILCreate(PT_DRIVE,(LPVOID)&sTemp[0],4);
 634 }
 635 LPITEMIDLIST WINAPI _ILCreateFolder( LPCSTR lpszShortName, LPCSTR lpszName)
 636 {       char    buff[MAX_PATH];
 637         char *  pbuff = buff;
 638         ULONG   len, len1;
 639
 640         TRACE(pidl,"(%s, %s)\n",lpszShortName, lpszName);
 641
 642         len = strlen (lpszName)+1;
 643         memcpy (pbuff, lpszName, len);
 644         pbuff += len;
 645
 646         if (lpszShortName)
 647         { len1 = strlen (lpszShortName)+1;
 648           memcpy (pbuff, lpszShortName, len1);
 649         }
 650         else
 651         { len1 = 1;
 652           *pbuff = 0x00;
 653         }
 654         return _ILCreate(PT_FOLDER, (LPVOID)buff, len + len1);
 655 }
 656 LPITEMIDLIST WINAPI _ILCreateValue(LPCSTR lpszShortName, LPCSTR lpszName)
 657 {       char    buff[MAX_PATH];
 658         char *  pbuff = buff;
 659         ULONG   len, len1;
 660
 661         TRACE(pidl,"(%s, %s)\n", lpszShortName, lpszName);
 662
 663         len = strlen (lpszName)+1;
 664         memcpy (pbuff, lpszName, len);
 665         pbuff += len;
 666
 667         if (lpszShortName)
 668         { len1 = strlen (lpszShortName)+1;
 669           memcpy (pbuff, lpszShortName, len1);
 670         }
 671         else
 672         { len1 = 1;
 673           *pbuff = 0x00;
 674         }
 675         return _ILCreate(PT_VALUE, (LPVOID)buff, len + len1);
 676 }
 677
 678 /**************************************************************************
 679  *  _ILGetDrive()
 680  *
 681  *  Gets the text for the drive eg. 'c:\'
 682  *
 683  * RETURNS
 684  *  strlen (lpszText)
 685  */
 686 DWORD WINAPI _ILGetDrive(LPCITEMIDLIST pidl,LPSTR pOut, UINT16 uSize)
 687 {       TRACE(pidl,"(%p,%p,%u)\n",pidl,pOut,uSize);
 688
 689         if(_ILIsMyComputer(pidl))
 690           pidl = ILGetNext(pidl);
 691
 692         if (pidl && _ILIsDrive(pidl))
 693           return _ILGetData(PT_DRIVE, pidl, (LPVOID)pOut, uSize)-1;
 694
 695         return 0;
 696 }
 697 /**************************************************************************
 698  *  _ILGetItemText()
 699  *  Gets the text for only the first item
 700  *
 701  * RETURNS
 702  *  strlen (lpszText)
 703  */
 704 DWORD WINAPI _ILGetItemText(LPCITEMIDLIST pidl, LPSTR lpszText, UINT16 uSize)
 705 {       DWORD ret = 0;
 706
 707         TRACE(pidl,"(pidl=%p %p %d)\n",pidl,lpszText,uSize);
 708         if (_ILIsMyComputer(pidl))
 709         { ret = _ILGetData(PT_MYCOMP, pidl, (LPVOID)lpszText, uSize)-1;
 710         }
 711         else if (_ILIsDrive(pidl))
 712         { ret = _ILGetData(PT_DRIVE, pidl, (LPVOID)lpszText, uSize)-1;
 713         }
 714         else if (_ILIsFolder (pidl))
 715         { ret = _ILGetData(PT_FOLDER, pidl, (LPVOID)lpszText, uSize)-1;
 716         }
 717         else if (_ILIsValue (pidl))
 718         { ret = _ILGetData(PT_VALUE, pidl, (LPVOID)lpszText, uSize)-1;
 719         }
 720         TRACE(pidl,"(-- %s)\n",debugstr_a(lpszText));
 721         return ret;
 722 }
 723 /**************************************************************************
 724  *  _ILIsDesktop()
 725  *  _ILIsDrive()
 726  *  _ILIsFolder()
 727  *  _ILIsValue()
 728  */
 729 BOOL WINAPI _ILIsDesktop(LPCITEMIDLIST pidl)
 730 {       TRACE(pidl,"(%p)\n",pidl);
 731         return ( !pidl || (pidl && pidl->mkid.cb == 0x00) );
 732 }
 733
 734 BOOL WINAPI _ILIsMyComputer(LPCITEMIDLIST pidl)
 735 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
 736         TRACE(pidl,"(%p)\n",pidl);
 737         return (pidl && lpPData && PT_MYCOMP == lpPData->type);
 738 }
 739
 740 BOOL WINAPI _ILIsDrive(LPCITEMIDLIST pidl)
 741 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
 742         TRACE(pidl,"(%p)\n",pidl);
 743         return (pidl && lpPData && PT_DRIVE == lpPData->type);
 744 }
 745
 746 BOOL WINAPI _ILIsFolder(LPCITEMIDLIST pidl)
 747 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
 748         TRACE(pidl,"(%p)\n",pidl);
 749         return (pidl && lpPData && PT_FOLDER == lpPData->type);
 750 }
 751
 752 BOOL WINAPI _ILIsValue(LPCITEMIDLIST pidl)
 753 {       LPPIDLDATA lpPData = _ILGetDataPointer(pidl);
 754         TRACE(pidl,"(%p)\n",pidl);
 755         return (pidl && lpPData && PT_VALUE == lpPData->type);
 756 }
 757
 758 /**************************************************************************
 759  *  _ILGetFolderText()
 760  *  Creates a Path string from a PIDL, filtering out the special Folders and values
 761  *  There is no trailing backslash
 762  *  When lpszPath is NULL the needed size is returned
 763  *
 764  * RETURNS
 765  *  strlen(lpszPath)
 766  */
 767 DWORD WINAPI _ILGetFolderText(LPCITEMIDLIST pidl,LPSTR lpszPath, DWORD dwSize)
 768 {       LPITEMIDLIST    pidlTemp;
 769         LPPIDLDATA      pData;
 770         DWORD           dwCopied = 0;
 771         LPSTR           pText;
 772
 773         TRACE(pidl,"(%p path=%p)\n",pidl, lpszPath);
 774
 775         if(!pidl)
 776           return 0;
 777
 778         if(_ILIsMyComputer(pidl))
 779         { pidlTemp = ILGetNext(pidl);
 780           TRACE(pidl,"-- skip My Computer\n");
 781         }
 782         else
 783         { pidlTemp = (LPITEMIDLIST)pidl;
 784         }
 785
 786         if(lpszPath)
 787           *lpszPath = 0;
 788
 789         pData = _ILGetDataPointer(pidlTemp);
 790
 791         while(pidlTemp->mkid.cb && !(PT_VALUE == pData->type))
 792         {
 793           if (!(pText = _ILGetTextPointer(pData->type,pData)))
 794             return 0;                           /* foreign pidl */
 795
 796           dwCopied += strlen(pText);
 797
 798           pidlTemp = ILGetNext(pidlTemp);
 799           pData = _ILGetDataPointer(pidlTemp);
 800
 801           if (lpszPath)
 802           { strcat(lpszPath, pText);
 803
 804             if (pidlTemp->mkid.cb               /* last element ? */
 805                 && (pText[2] != '\\')           /* drive has own '\' */
 806                 && (PT_VALUE != pData->type))   /* next element is value */
 807             { lpszPath[dwCopied] = '\\';
 808               lpszPath[dwCopied+1] = '\0';
 809               dwCopied++;
 810             }
 811           }
 812           else                                          /* only length */
 813           { if (pidlTemp->mkid.cb
 814                 && (pText[2] != '\\')
 815                 && (PT_VALUE != pData->type))
 816               dwCopied++;                               /* backslash between elements */
 817           }
 818         }
 819
 820         TRACE(pidl,"-- (size=%lu path=%s)\n",dwCopied, debugstr_a(lpszPath));
 821         return dwCopied;
 822 }
 823
 824
 825 /**************************************************************************
 826  *  _ILGetValueText()
 827  *  Gets the text for the last item in the list
 828  */
 829 DWORD WINAPI _ILGetValueText(LPCITEMIDLIST pidl, LPSTR lpszValue, DWORD dwSize)
 830 {       LPITEMIDLIST  pidlTemp=pidl;
 831         CHAR          szText[MAX_PATH];
 832
 833         TRACE(pidl,"(pidl=%p %p 0x%08lx)\n",pidl,lpszValue,dwSize);
 834
 835         if(!pidl)
 836         { return 0;
 837         }
 838
 839         while(pidlTemp->mkid.cb && !_ILIsValue(pidlTemp))
 840         { pidlTemp = ILGetNext(pidlTemp);
 841         }
 842
 843         if(!pidlTemp->mkid.cb)
 844         { return 0;
 845         }
 846
 847         _ILGetItemText( pidlTemp, szText, sizeof(szText));
 848
 849         if(!lpszValue)
 850         { return strlen(szText);
 851         }
 852
 853         strcpy(lpszValue, szText);
 854
 855         TRACE(pidl,"-- (pidl=%p %p=%s 0x%08lx)\n",pidl,lpszValue,lpszValue,dwSize);
 856         return strlen(lpszValue);
 857 }
 858
 859 /**************************************************************************
 860  *  _ILGetPidlPath()
 861  *  Create a string that includes the Drive name, the folder text and
 862  *  the value text.
 863  *
 864  * RETURNS
 865  *  strlen(lpszOut)
 866  */
 867 DWORD WINAPI _ILGetPidlPath( LPCITEMIDLIST pidl, LPSTR lpszOut, DWORD dwOutSize)
 868 {       int     len = 0;
 869         LPSTR   lpszTemp = lpszOut;
 870
 871         TRACE(pidl,"(%p,%lu)\n",lpszOut,dwOutSize);
 872
 873         if(!lpszOut)
 874         { return 0;
 875         }
 876
 877         *lpszOut = 0;
 878
 879         len = _ILGetFolderText(pidl, lpszOut, dwOutSize);
 880
 881         lpszOut += len;
 882         strcpy (lpszOut,"\\");
 883         len++; lpszOut++; dwOutSize -= len;
 884
 885         len += _ILGetValueText(pidl, lpszOut, dwOutSize );
 886
 887         /*remove the last backslash if necessary */
 888         if( lpszTemp[len-1]=='\\')
 889         { lpszTemp[len-1] = 0;
 890           len--;
 891         }
 892
 893         TRACE(pidl,"-- (%p=%s,%u)\n",lpszTemp,lpszTemp,len);
 894
 895         return len;
 896 }
 897
 898 /**************************************************************************
 899  *  _ILCreate()
 900  *  Creates a new PIDL
 901  *  type = PT_DESKTOP | PT_DRIVE | PT_FOLDER | PT_VALUE
 902  *  pIn = data
 903  *  uInSize = size of data (raw)
 904  */
 905
 906 LPITEMIDLIST WINAPI _ILCreate(PIDLTYPE type, LPVOID pIn, UINT16 uInSize)
 907 {       LPITEMIDLIST   pidlOut=NULL;
 908         UINT16         uSize;
 909         LPITEMIDLIST   pidlTemp=NULL;
 910         LPPIDLDATA     pData;
 911         LPSTR   pszDest;
 912
 913         TRACE(pidl,"(0x%02x %p %i)\n",type,pIn,uInSize);
 914
 915         if ( type == PT_DESKTOP)
 916         { pidlOut = SHAlloc(2);
 917           pidlOut->mkid.cb=0x0000;
 918           return pidlOut;
 919         }
 920
 921         if (! pIn)
 922         { return NULL;
 923         }
 924
 925         /* the sizes of: cb(2), pidldata-1(26), szText+1, next cb(2) */
 926         switch (type)
 927         { case PT_DRIVE:
 928             uSize = 4 + 9;
 929             break;
 930           default:
 931             uSize = 4 + (sizeof(PIDLDATA)) + uInSize;
 932          }
 933         pidlOut = SHAlloc(uSize);
 934         pidlTemp = pidlOut;
 935         if(pidlOut)
 936         { pidlTemp->mkid.cb = uSize - 2;
 937           pData =_ILGetDataPointer(pidlTemp);
 938           pszDest =  _ILGetTextPointer(type, pData);
 939           pData->type = type;
 940           switch(type)
 941           { case PT_MYCOMP:
 942               memcpy(pszDest, pIn, uInSize);
 943               TRACE(pidl,"- create My Computer: %s\n",debugstr_a(pszDest));
 944               break;
 945             case PT_DRIVE:
 946               memcpy(pszDest, pIn, uInSize);
 947               TRACE(pidl,"- create Drive: %s\n",debugstr_a(pszDest));
 948               break;
 949             case PT_FOLDER:
 950             case PT_VALUE:
 951               memcpy(pszDest, pIn, uInSize);
 952               TRACE(pidl,"- create Value: %s\n",debugstr_a(pszDest));
 953               break;
 954             default:
 955               FIXME(pidl,"-- wrong argument\n");
 956               break;
 957           }
 958
 959           pidlTemp = ILGetNext(pidlTemp);
 960           pidlTemp->mkid.cb = 0x00;
 961         }
 962         TRACE(pidl,"-- (pidl=%p, size=%u)\n",pidlOut,uSize-2);
 963         return pidlOut;
 964 }
 965 /**************************************************************************
 966  *  _ILGetData(PIDLTYPE, LPCITEMIDLIST, LPVOID, UINT16)
 967  *
 968  * RETURNS
 969  *  length of data (raw)
 970  */
 971 DWORD WINAPI _ILGetData(PIDLTYPE type, LPCITEMIDLIST pidl, LPVOID pOut, UINT uOutSize)
 972 {       LPPIDLDATA  pData;
 973         DWORD       dwReturn=0;
 974         LPSTR       pszSrc;
 975
 976         TRACE(pidl,"(%x %p %p %x)\n",type,pidl,pOut,uOutSize);
 977
 978         if(!pidl)
 979         {  return 0;
 980         }
 981
 982         *(LPSTR)pOut = 0;
 983
 984         pData = _ILGetDataPointer(pidl);
 985         if ( pData->type != type)
 986         { ERR(pidl,"-- wrong type\n");
 987           return 0;
 988         }
 989         pszSrc = _ILGetTextPointer(pData->type, pData);
 990
 991         switch(type)
 992         { case PT_MYCOMP:
 993             if(uOutSize < 1)
 994               return 0;
 995             strncpy((LPSTR)pOut, "My Computer", uOutSize);
 996             dwReturn = strlen((LPSTR)pOut)+1;
 997             break;
 998
 999           case PT_DRIVE:
1000             if(uOutSize < 1)
1001               return 0;
1002             strncpy((LPSTR)pOut, pszSrc, uOutSize);
1003             dwReturn = strlen((LPSTR)pOut)+1;
1004             break;
1005
1006           case PT_FOLDER:
1007           case PT_VALUE:
1008              strncpy((LPSTR)pOut, pszSrc, uOutSize);
1009              dwReturn = strlen((LPSTR)pOut)+1;
1010              break;
1011           default:
1012             ERR(pidl,"-- unknown type\n");
1013             break;
1014         }
1015         TRACE(pidl,"-- (%p=%s 0x%08lx)\n",pOut,(char*)pOut,dwReturn);
1016         return dwReturn;
1017 }
1018
1019
1020 /**************************************************************************
1021  *  _ILGetDataPointer()
1022  */
1023 LPPIDLDATA WINAPI _ILGetDataPointer(LPITEMIDLIST pidl)
1024 {       if(pidl && pidl->mkid.cb != 0x00)
1025           return (LPPIDLDATA)(&pidl->mkid.abID);
1026         return NULL;
1027 }
1028 /**************************************************************************
1029  *  _ILGetTextPointer()
1030  * gets a pointer to the long filename string stored in the pidl
1031  */
1032 LPSTR WINAPI _ILGetTextPointer(PIDLTYPE type, LPPIDLDATA pidldata)
1033 {/*     TRACE(pidl,"(type=%x data=%p)\n", type, pidldata);*/
1034
1035         if(!pidldata)
1036         { return NULL;
1037         }
1038         switch (type)
1039         { case PT_DRIVE:
1040             return (LPSTR)&(pidldata->u.drive.szDriveName);
1041           case PT_MYCOMP:
1042           case PT_FOLDER:
1043           case PT_VALUE:
1044             return (LPSTR)&(pidldata->u.file.szNames);
1045         }
1046         return NULL;
1047 }
1048 /**************************************************************************
1049  *  _ILGetSTextPointer()
1050  * gets a pointer to the long filename string stored in the pidl
1051  */
1052 LPSTR WINAPI _ILGetSTextPointer(PIDLTYPE type, LPPIDLDATA pidldata)
1053 {/*     TRACE(pidl,"(type=%x data=%p)\n", type, pidldata);*/
1054
1055         if(!pidldata)
1056         { return NULL;
1057         }
1058         switch (type)
1059         { case PT_MYCOMP:
1060           case PT_DRIVE:
1061             return NULL;
1062           case PT_FOLDER:
1063           case PT_VALUE:
1064             return (LPSTR)(pidldata->u.file.szNames + strlen (pidldata->u.file.szNames) + 1);
1065         }
1066         return NULL;
1067 }
1068 BOOL WINAPI _ILGetFileDate (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
1069 {       LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1070         FILETIME ft;
1071         SYSTEMTIME time;
1072
1073         switch (pdata->type)
1074         { case PT_DRIVE:
1075           case PT_MYCOMP:
1076             return FALSE;
1077           case PT_FOLDER:
1078             DosDateTimeToFileTime(pdata->u.folder.uFileDate, pdata->u.folder.uFileTime, &ft);
1079             break;
1080           case PT_VALUE:
1081             DosDateTimeToFileTime(pdata->u.file.uFileDate, pdata->u.file.uFileTime, &ft);
1082             break;
1083           default:
1084             return FALSE;
1085         }
1086         FileTimeToSystemTime (&ft, &time);
1087         return GetDateFormatA(LOCALE_USER_DEFAULT,DATE_SHORTDATE,&time, NULL,  pOut, uOutSize);
1088 }
1089 BOOL WINAPI _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
1090 {       LPPIDLDATA pdata =_ILGetDataPointer(pidl);
1091         char stemp[20]; /* for filesize */
1092
1093         switch (pdata->type)
1094         { case PT_DRIVE:
1095           case PT_MYCOMP:
1096           case PT_FOLDER:
1097             return FALSE;
1098           case PT_VALUE:
1099             break;
1100           default:
1101             return FALSE;
1102         }
1103         StrFormatByteSizeA(pdata->u.file.dwFileSize, stemp, 20);
1104         strncpy( pOut, stemp, 20);
1105         return TRUE;
1106 }
1107
1108 BOOL WINAPI _ILGetExtension (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
1109 {       char pTemp[MAX_PATH];
1110         int i;
1111
1112         TRACE(pidl,"pidl=%p\n",pidl);
1113
1114         if ( ! _ILGetValueText(pidl, pTemp, MAX_PATH))
1115         { return FALSE;
1116         }
1117
1118         for (i=0; pTemp[i]!='.' && pTemp[i];i++);
1119
1120         if (!pTemp[i])
1121           return FALSE;
1122
1123         strncpy(pOut, &pTemp[i], uOutSize);
1124         TRACE(pidl,"%s\n",pOut);
1125
1126         return TRUE;
1127 }
1128
1129 /**************************************************************************
1130  *  IDLList "Item ID List List"
1131  *
1132  */
1133 static UINT WINAPI IDLList_GetState(LPIDLLIST this);
1134 static LPITEMIDLIST WINAPI IDLList_GetElement(LPIDLLIST this, UINT nIndex);
1135 static UINT WINAPI IDLList_GetCount(LPIDLLIST this);
1136 static BOOL WINAPI IDLList_StoreItem(LPIDLLIST this, LPITEMIDLIST pidl);
1137 static BOOL WINAPI IDLList_AddItems(LPIDLLIST this, LPITEMIDLIST *apidl, UINT cidl);
1138 static BOOL WINAPI IDLList_InitList(LPIDLLIST this);
1139 static void WINAPI IDLList_CleanList(LPIDLLIST this);
1140
1141 static IDLList_VTable idllvt =
1142 {       IDLList_GetState,
1143         IDLList_GetElement,
1144         IDLList_GetCount,
1145         IDLList_StoreItem,
1146         IDLList_AddItems,
1147         IDLList_InitList,
1148         IDLList_CleanList
1149 };
1150
1151 LPIDLLIST IDLList_Constructor (UINT uStep)
1152 {       LPIDLLIST lpidll;
1153         if (!(lpidll = (LPIDLLIST)HeapAlloc(GetProcessHeap(),0,sizeof(IDLList))))
1154           return NULL;
1155
1156         lpidll->lpvtbl=&idllvt;
1157         lpidll->uStep=uStep;
1158         lpidll->dpa=NULL;
1159
1160         TRACE (shell,"(%p)\n",lpidll);
1161         return lpidll;
1162 }
1163 void IDLList_Destructor(LPIDLLIST this)
1164 {       TRACE (shell,"(%p)\n",this);
1165         IDLList_CleanList(this);
1166 }
1167
1168 static UINT WINAPI IDLList_GetState(LPIDLLIST this)
1169 {       TRACE (shell,"(%p)->(uStep=%u dpa=%p)\n",this, this->uStep, this->dpa);
1170
1171         if (this->uStep == 0)
1172         { if (this->dpa)
1173             return(State_Init);
1174           return(State_OutOfMem);
1175         }
1176         return(State_UnInit);
1177 }
1178 static LPITEMIDLIST WINAPI IDLList_GetElement(LPIDLLIST this, UINT nIndex)
1179 {       TRACE (shell,"(%p)->(index=%u)\n",this, nIndex);
1180         return((LPITEMIDLIST)pDPA_GetPtr(this->dpa, nIndex));
1181 }
1182 static UINT WINAPI IDLList_GetCount(LPIDLLIST this)
1183 {       TRACE (shell,"(%p)\n",this);
1184         return(IDLList_GetState(this)==State_Init ? DPA_GetPtrCount(this->dpa) : 0);
1185 }
1186 static BOOL WINAPI IDLList_StoreItem(LPIDLLIST this, LPITEMIDLIST pidl)
1187 {       TRACE (shell,"(%p)->(pidl=%p)\n",this, pidl);
1188         if (pidl)
1189         { if (IDLList_InitList(this) && pDPA_InsertPtr(this->dpa, 0x7fff, (LPSTR)pidl)>=0)
1190             return(TRUE);
1191           ILFree(pidl);
1192         }
1193         IDLList_CleanList(this);
1194         return(FALSE);
1195 }
1196 static BOOL WINAPI IDLList_AddItems(LPIDLLIST this, LPITEMIDLIST *apidl, UINT cidl)
1197 {       INT i;
1198         TRACE (shell,"(%p)->(apidl=%p cidl=%u)\n",this, apidl, cidl);
1199
1200         for (i=0; i<cidl; ++i)
1201         { if (!IDLList_StoreItem(this, ILClone((LPCITEMIDLIST)apidl[i])))
1202             return(FALSE);
1203         }
1204         return(TRUE);
1205 }
1206 static BOOL WINAPI IDLList_InitList(LPIDLLIST this)
1207 {       TRACE (shell,"(%p)\n",this);
1208         switch (IDLList_GetState(this))
1209         { case State_Init:
1210             return(TRUE);
1211
1212           case State_OutOfMem:
1213             return(FALSE);
1214
1215           case State_UnInit:
1216           default:
1217             this->dpa = pDPA_Create(this->uStep);
1218             this->uStep = 0;
1219             return(IDLList_InitList(this));
1220         }
1221 }
1222 static void WINAPI IDLList_CleanList(LPIDLLIST this)
1223 {       INT i;
1224         TRACE (shell,"(%p)\n",this);
1225
1226         if (this->uStep != 0)
1227         { this->dpa = NULL;
1228           this->uStep = 0;
1229           return;
1230         }
1231
1232         if (!this->dpa)
1233         { return;
1234         }
1235
1236         for (i=DPA_GetPtrCount(this->dpa)-1; i>=0; --i)
1237         { ILFree(IDLList_GetElement(this,i));
1238         }
1239
1240         pDPA_Destroy(this->dpa);
1241         this->dpa=NULL;
1242 }