base/applications/regedit/listview.c

   1 /*
   2  * Regedit listviews
   3  *
   4  * Copyright (C) 2002 Robert Dickenson <robd@reactos.org>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21 #include "regedit.h"
  22
  23
  24 #define CX_ICON    16
  25 #define CY_ICON    16
  26 #define NUM_ICONS   2
  27
  28 int Image_String = 0;
  29 int Image_Bin = 0;
  30 INT iListViewSelect = -1;
  31
  32 typedef struct tagLINE_INFO
  33 {
  34     DWORD dwValType;
  35     LPWSTR name;
  36     void* val;
  37     size_t val_len;
  38 } LINE_INFO, *PLINE_INFO;
  39
  40 typedef struct tagSORT_INFO
  41 {
  42     INT  iSortingColumn;
  43     BOOL bSortAscending;
  44 } SORT_INFO, *PSORT_INFO;
  45
  46 /*******************************************************************************
  47  * Global and Local Variables:
  48  */
  49
  50 static INT g_iSortedColumn = 0;
  51
  52 #define MAX_LIST_COLUMNS (IDS_LIST_COLUMN_LAST - IDS_LIST_COLUMN_FIRST + 1)
  53 static const int default_column_widths[MAX_LIST_COLUMNS] = { 200, 175, 400 };
  54 static const int column_alignment[MAX_LIST_COLUMNS] = { LVCFMT_LEFT, LVCFMT_LEFT, LVCFMT_LEFT };
  55
  56 LPCWSTR GetValueName(HWND hwndLV, int iStartAt)
  57 {
  58     int item;
  59     LVITEMW LVItem;
  60     PLINE_INFO lineinfo;
  61
  62     /*
  63        if a new item is inserted, then no allocation,
  64        otherwise the heap block will be lost!
  65     */
  66     item = ListView_GetNextItem(hwndLV, iStartAt, LVNI_SELECTED);
  67     if (item == -1) return NULL;
  68
  69     /*
  70         Should be always TRUE anyways
  71     */
  72     LVItem.iItem = item;
  73     LVItem.iSubItem = 0;
  74     LVItem.mask = LVIF_PARAM;
  75     if (ListView_GetItem(hwndLV, &LVItem) == FALSE)
  76         return NULL;
  77
  78     lineinfo = (PLINE_INFO)LVItem.lParam;
  79     if (lineinfo == NULL)
  80         return NULL;
  81
  82     return lineinfo->name;
  83 }
  84
  85 VOID SetValueName(HWND hwndLV, LPCWSTR pszValueName)
  86 {
  87     INT i, c;
  88     LVFINDINFOW fi;
  89
  90     c = ListView_GetItemCount(hwndLV);
  91     for(i = 0; i < c; i++)
  92     {
  93         ListView_SetItemState(hwndLV, i, 0, LVIS_FOCUSED | LVIS_SELECTED);
  94     }
  95     if (pszValueName == NULL)
  96         i = 0;
  97     else
  98     {
  99         fi.flags    = LVFI_STRING;
 100         fi.psz      = pszValueName;
 101         i = ListView_FindItem(hwndLV, -1, &fi);
 102     }
 103     ListView_SetItemState(hwndLV, i, LVIS_FOCUSED | LVIS_SELECTED,
 104                           LVIS_FOCUSED | LVIS_SELECTED);
 105     iListViewSelect = i;
 106 }
 107
 108 BOOL IsDefaultValue(HWND hwndLV, int i)
 109 {
 110     PLINE_INFO lineinfo;
 111     LVITEMW Item;
 112
 113     Item.mask = LVIF_PARAM;
 114     Item.iItem = i;
 115     if(ListView_GetItem(hwndLV, &Item))
 116     {
 117         lineinfo = (PLINE_INFO)Item.lParam;
 118         return lineinfo && (!lineinfo->name || !wcscmp(lineinfo->name, L""));
 119     }
 120     return FALSE;
 121 }
 122
 123 /*******************************************************************************
 124  * Local module support methods
 125  */
 126 static void AddEntryToList(HWND hwndLV, LPWSTR Name, DWORD dwValType, void* ValBuf, DWORD dwCount, int Position, BOOL ValExists)
 127 {
 128     PLINE_INFO linfo;
 129     LVITEMW item;
 130     int index;
 131
 132     linfo = (PLINE_INFO)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINE_INFO) + dwCount);
 133     linfo->dwValType = dwValType;
 134     linfo->val_len = dwCount;
 135     if (dwCount > 0)
 136     {
 137         memcpy(&linfo[1], ValBuf, dwCount);
 138         linfo->val = &linfo[1];
 139     }
 140     linfo->name = _wcsdup(Name);
 141
 142     item.mask = LVIF_TEXT | LVIF_PARAM | LVIF_IMAGE;
 143     item.iItem = (Position == -1 ? 0: Position);
 144     item.iSubItem = 0;
 145     item.state = 0;
 146     item.stateMask = 0;
 147     item.pszText = Name;
 148     item.cchTextMax = (int)wcslen(item.pszText);
 149     if (item.cchTextMax == 0)
 150         item.pszText = LPSTR_TEXTCALLBACK;
 151     item.iImage = 0;
 152     item.lParam = (LPARAM)linfo;
 153     switch(dwValType)
 154     {
 155         case REG_SZ:
 156         case REG_EXPAND_SZ:
 157         case REG_MULTI_SZ:
 158             item.iImage = Image_String;
 159             break;
 160         default:
 161             item.iImage = Image_Bin;
 162             break;
 163     }
 164
 165     /*    item.lParam = (LPARAM)ValBuf; */
 166 #if (_WIN32_IE >= 0x0300)
 167     item.iIndent = 0;
 168 #endif
 169
 170     index = ListView_InsertItem(hwndLV, &item);
 171     if (index != -1)
 172     {
 173         switch (dwValType)
 174         {
 175         case REG_SZ:
 176         case REG_EXPAND_SZ:
 177             if(dwCount > 0)
 178             {
 179                 ListView_SetItemText(hwndLV, index, 2, ValBuf);
 180             }
 181             else if(!ValExists)
 182             {
 183                 WCHAR buffer[255];
 184                 /* load (value not set) string */
 185                 LoadStringW(hInst, IDS_VALUE_NOT_SET, buffer, COUNT_OF(buffer));
 186                 ListView_SetItemText(hwndLV, index, 2, buffer);
 187             }
 188             break;
 189         case REG_MULTI_SZ:
 190         {
 191             LPWSTR src, str;
 192             if(dwCount >= 2)
 193             {
 194                 src = (LPWSTR)ValBuf;
 195                 str = HeapAlloc(GetProcessHeap(), 0, dwCount + sizeof(WCHAR));
 196                 if(str != NULL)
 197                 {
 198                     *str = L'\0';
 199                     /* concatenate all srings */
 200                     while(*src != L'\0')
 201                     {
 202                         wcscat(str, src);
 203                         wcscat(str, L" ");
 204                         src += wcslen(src) + 1;
 205                     }
 206                     ListView_SetItemText(hwndLV, index, 2, str);
 207                     HeapFree(GetProcessHeap(), 0, str);
 208                 }
 209                 else
 210                     ListView_SetItemText(hwndLV, index, 2, L"");
 211             }
 212             else
 213                 ListView_SetItemText(hwndLV, index, 2, L"");
 214         }
 215         break;
 216         case REG_DWORD:
 217         {
 218             WCHAR buf[200];
 219             if(dwCount == sizeof(DWORD))
 220             {
 221                 wsprintf(buf, L"0x%08x (%u)", *(DWORD*)ValBuf, *(DWORD*)ValBuf);
 222             }
 223             else
 224             {
 225                 LoadStringW(hInst, IDS_INVALID_DWORD, buf, COUNT_OF(buf));
 226             }
 227             ListView_SetItemText(hwndLV, index, 2, buf);
 228         }
 229         /*            lpsRes = convertHexToDWORDStr(lpbData, dwLen); */
 230         break;
 231         default:
 232         {
 233             unsigned int i;
 234             LPBYTE pData = (LPBYTE)ValBuf;
 235             LPWSTR strBinary;
 236             if(dwCount > 0)
 237             {
 238                 strBinary = HeapAlloc(GetProcessHeap(), 0, (dwCount * sizeof(WCHAR) * 3) + sizeof(WCHAR));
 239                 for (i = 0; i < dwCount; i++)
 240                 {
 241                     wsprintf( strBinary + i*3, L"%02X ", pData[i] );
 242                 }
 243                 strBinary[dwCount * 3] = 0;
 244                 ListView_SetItemText(hwndLV, index, 2, strBinary);
 245                 HeapFree(GetProcessHeap(), 0, strBinary);
 246             }
 247             else
 248             {
 249                 WCHAR szText[128];
 250                 LoadStringW(hInst, IDS_BINARY_EMPTY, szText, COUNT_OF(szText));
 251                 ListView_SetItemText(hwndLV, index, 2, szText);
 252             }
 253         }
 254         break;
 255         }
 256     }
 257 }
 258
 259 static BOOL CreateListColumns(HWND hWndListView)
 260 {
 261     WCHAR szText[50];
 262     int index;
 263     LVCOLUMN lvC;
 264
 265     /* Create columns. */
 266     lvC.mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT | LVCF_SUBITEM;
 267     lvC.pszText = szText;
 268
 269     /* Load the column labels from the resource file. */
 270     for (index = 0; index < MAX_LIST_COLUMNS; index++)
 271     {
 272         lvC.iSubItem = index;
 273         lvC.cx = default_column_widths[index];
 274         lvC.fmt = column_alignment[index];
 275         LoadStringW(hInst, IDS_LIST_COLUMN_FIRST + index, szText, COUNT_OF(szText));
 276         if (ListView_InsertColumn(hWndListView, index, &lvC) == -1) return FALSE;
 277     }
 278     return TRUE;
 279 }
 280
 281 static BOOL InitListViewImageLists(HWND hwndLV)
 282 {
 283     HIMAGELIST himl;  /* handle to image list  */
 284     HICON hico;       /* handle to icon  */
 285
 286     /* Create the image list.  */
 287     if ((himl = ImageList_Create(CX_ICON, CY_ICON,
 288                                  ILC_MASK, 0, NUM_ICONS)) == NULL)
 289     {
 290         return FALSE;
 291     }
 292
 293     hico = LoadIconW(hInst, MAKEINTRESOURCEW(IDI_BIN));
 294     Image_Bin = ImageList_AddIcon(himl, hico);
 295
 296     hico = LoadIconW(hInst, MAKEINTRESOURCEW(IDI_STRING));
 297     Image_String = ImageList_AddIcon(himl, hico);
 298
 299     /* Fail if not all of the images were added.  */
 300     if (ImageList_GetImageCount(himl) < NUM_ICONS)
 301     {
 302         return FALSE;
 303     }
 304
 305     /* Associate the image list with the tree view control.  */
 306     (void)ListView_SetImageList(hwndLV, himl, LVSIL_SMALL);
 307
 308     return TRUE;
 309 }
 310
 311 /* OnGetDispInfo - processes the LVN_GETDISPINFO notification message.  */
 312
 313 static void OnGetDispInfo(NMLVDISPINFO* plvdi)
 314 {
 315     static WCHAR buffer[200];
 316
 317     plvdi->item.pszText = NULL;
 318     plvdi->item.cchTextMax = 0;
 319
 320     switch (plvdi->item.iSubItem)
 321     {
 322     case 0:
 323         LoadStringW(hInst, IDS_DEFAULT_VALUE_NAME, buffer, COUNT_OF(buffer));
 324         plvdi->item.pszText = buffer;
 325         break;
 326     case 1:
 327         switch (((LINE_INFO*)plvdi->item.lParam)->dwValType)
 328         {
 329             case REG_NONE:
 330                 plvdi->item.pszText = L"REG_NONE";
 331                 break;
 332             case REG_SZ:
 333                 plvdi->item.pszText = L"REG_SZ";
 334                 break;
 335             case REG_EXPAND_SZ:
 336                 plvdi->item.pszText = L"REG_EXPAND_SZ";
 337                 break;
 338             case REG_BINARY:
 339                 plvdi->item.pszText = L"REG_BINARY";
 340                 break;
 341             case REG_DWORD: /* REG_DWORD_LITTLE_ENDIAN */
 342                 plvdi->item.pszText = L"REG_DWORD";
 343                 break;
 344             case REG_DWORD_BIG_ENDIAN:
 345                 plvdi->item.pszText = L"REG_DWORD_BIG_ENDIAN";
 346                 break;
 347             case REG_LINK:
 348                 plvdi->item.pszText = L"REG_LINK";
 349                 break;
 350             case REG_MULTI_SZ:
 351                 plvdi->item.pszText = L"REG_MULTI_SZ";
 352                 break;
 353             case REG_RESOURCE_LIST:
 354                 plvdi->item.pszText = L"REG_RESOURCE_LIST";
 355                 break;
 356             case REG_FULL_RESOURCE_DESCRIPTOR:
 357                 plvdi->item.pszText = L"REG_FULL_RESOURCE_DESCRIPTOR";
 358                 break;
 359             case REG_RESOURCE_REQUIREMENTS_LIST:
 360                 plvdi->item.pszText = L"REG_RESOURCE_REQUIREMENTS_LIST";
 361                 break;
 362             case REG_QWORD: /* REG_QWORD_LITTLE_ENDIAN */
 363                 plvdi->item.pszText = L"REG_QWORD";
 364                 break;
 365             default:
 366             {
 367                 WCHAR buf2[200];
 368                 LoadStringW(hInst, IDS_UNKNOWN_TYPE, buf2, COUNT_OF(buf2));
 369                 wsprintf(buffer, buf2, ((LINE_INFO*)plvdi->item.lParam)->dwValType);
 370                 plvdi->item.pszText = buffer;
 371                 break;
 372             }
 373         }
 374         break;
 375     case 3:
 376         plvdi->item.pszText = L"";
 377         break;
 378     }
 379 }
 380
 381 static int CALLBACK CompareFunc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
 382 {
 383     PSORT_INFO pSortInfo = (PSORT_INFO)lParamSort;
 384     LINE_INFO *l, *r;
 385     DWORD dw1, dw2;
 386     DWORDLONG qw1, qw2;
 387
 388     l = (LINE_INFO*)lParam1;
 389     r = (LINE_INFO*)lParam2;
 390
 391     if (pSortInfo->iSortingColumn == 1 && l->dwValType != r->dwValType)
 392     {
 393         /* Sort by type */
 394         if (pSortInfo->bSortAscending)
 395             return ((int)l->dwValType - (int)r->dwValType);
 396         else
 397             return ((int)r->dwValType - (int)l->dwValType);
 398     }
 399     if (pSortInfo->iSortingColumn == 2)
 400     {
 401         /* Sort by value */
 402         if (l->dwValType != r->dwValType)
 403         {
 404             if (pSortInfo->bSortAscending)
 405                 return ((int)l->dwValType - (int)r->dwValType);
 406             else
 407                 return ((int)r->dwValType - (int)l->dwValType);
 408         }
 409
 410         if (l->val == NULL && r->val == NULL)
 411             return 0;
 412
 413         if (pSortInfo->bSortAscending)
 414         {
 415             if (l->val == NULL)
 416                 return -1;
 417             if (r->val == NULL)
 418                 return 1;
 419         }
 420         else
 421         {
 422             if (l->val == NULL)
 423                 return 1;
 424             if (r->val == NULL)
 425                 return -1;
 426         }
 427
 428         switch(l->dwValType)
 429         {
 430             case REG_DWORD:
 431             {
 432                 dw1 = *(DWORD*)l->val;
 433                 dw2 = *(DWORD*)r->val;
 434                 if (pSortInfo->bSortAscending)
 435                     // return (dw1 > dw2 ? 1 : -1);
 436                     return ((int)dw1 - (int)dw2);
 437                 else
 438                     // return (dw1 > dw2 ? -1 : 1);
 439                     return ((int)dw2 - (int)dw1);
 440             }
 441
 442             case REG_QWORD: /* REG_QWORD_LITTLE_ENDIAN */
 443             {
 444                 qw1 = *(DWORDLONG*)l->val;
 445                 qw2 = *(DWORDLONG*)r->val;
 446                 if (pSortInfo->bSortAscending)
 447                     // return (qw1 > qw2 ? 1 : -1);
 448                     return ((int)qw1 - (int)qw2);
 449                 else
 450                     // return (qw1 > qw2 ? -1 : 1);
 451                     return ((int)qw2 - (int)qw1);
 452             }
 453
 454             default:
 455             {
 456                 INT nCompare = 0;
 457
 458                 if (pSortInfo->bSortAscending)
 459                 {
 460                     nCompare = memcmp(l->val, r->val, min(l->val_len, r->val_len));
 461                     if (nCompare == 0)
 462                         nCompare = l->val_len - r->val_len;
 463                 }
 464                 else
 465                 {
 466                     nCompare = memcmp(r->val, l->val, min(r->val_len, l->val_len));
 467                     if (nCompare == 0)
 468                         nCompare = r->val_len - l->val_len;
 469                 }
 470
 471                 return nCompare;
 472             }
 473         }
 474     }
 475
 476     /* Sort by name */
 477     return (pSortInfo->bSortAscending ? StrCmpLogicalW(l->name, r->name) : StrCmpLogicalW(r->name, l->name));
 478 }
 479
 480 static BOOL ListView_Sort(HWND hListView, int iSortingColumn, int iSortedColumn)
 481 {
 482     if ( (GetWindowLongPtr(hListView, GWL_STYLE) & ~LVS_NOSORTHEADER) &&
 483          (iSortingColumn >= 0) )
 484     {
 485         BOOL bSortAscending;
 486         SORT_INFO SortInfo;
 487
 488         HWND hHeader = ListView_GetHeader(hListView);
 489         HDITEM hColumn = {0};
 490
 491         /* If we are sorting according to another column, uninitialize the old one */
 492         if ( (iSortedColumn >= 0) && (iSortingColumn != iSortedColumn) )
 493         {
 494             hColumn.mask = HDI_FORMAT;
 495             Header_GetItem(hHeader, iSortedColumn, &hColumn);
 496             hColumn.fmt &= ~(HDF_SORTUP | HDF_SORTDOWN);
 497             Header_SetItem(hHeader, iSortedColumn, &hColumn);
 498         }
 499
 500         /* Get the sorting state of the new column */
 501         hColumn.mask = HDI_FORMAT;
 502         Header_GetItem(hHeader, iSortingColumn, &hColumn);
 503
 504         /*
 505          * Check whether we are sorting the list because the user clicked
 506          * on a column, or because we are refreshing the list:
 507          *
 508          * iSortedColumn >= 0 - User clicked on a column; holds the
 509          *                      old sorting column index.
 510          * iSortedColumn  < 0 - List being refreshed.
 511          */
 512         if (iSortedColumn >= 0)
 513         {
 514             /* Invert the sorting direction */
 515             bSortAscending = ((hColumn.fmt & HDF_SORTUP) == 0);
 516         }
 517         else
 518         {
 519             /*
 520              * If the sorting state of the column is uninitialized,
 521              * initialize it by default to ascending sorting.
 522              */
 523             if ((hColumn.fmt & (HDF_SORTUP | HDF_SORTDOWN)) == 0)
 524                 hColumn.fmt |= HDF_SORTUP;
 525
 526             /* Keep the same sorting direction */
 527             bSortAscending = ((hColumn.fmt & HDF_SORTUP) != 0);
 528         }
 529
 530         /* Set the new column sorting state */
 531         hColumn.fmt &= ~(bSortAscending ? HDF_SORTDOWN : HDF_SORTUP  );
 532         hColumn.fmt |=  (bSortAscending ? HDF_SORTUP   : HDF_SORTDOWN);
 533         Header_SetItem(hHeader, iSortingColumn, &hColumn);
 534
 535         /* Sort the list */
 536         SortInfo.iSortingColumn = iSortingColumn;
 537         SortInfo.bSortAscending = bSortAscending;
 538         return ListView_SortItems(hListView, CompareFunc, (LPARAM)&SortInfo);
 539     }
 540     else
 541         return TRUE;
 542 }
 543
 544 BOOL ListWndNotifyProc(HWND hWnd, WPARAM wParam, LPARAM lParam, BOOL *Result)
 545 {
 546     NMLVDISPINFO* Info;
 547     int iSortingColumn;
 548     UNREFERENCED_PARAMETER(wParam);
 549     *Result = TRUE;
 550     switch (((LPNMHDR)lParam)->code)
 551     {
 552     case LVN_GETDISPINFO:
 553         OnGetDispInfo((NMLVDISPINFO*)lParam);
 554         return TRUE;
 555     case LVN_COLUMNCLICK:
 556         iSortingColumn = ((LPNMLISTVIEW)lParam)->iSubItem;
 557         (void)ListView_Sort(hWnd, iSortingColumn, g_iSortedColumn);
 558         g_iSortedColumn = iSortingColumn;
 559         return TRUE;
 560     case NM_DBLCLK:
 561     case NM_RETURN:
 562     {
 563         SendMessageW(hFrameWnd, WM_COMMAND, MAKEWPARAM(ID_EDIT_MODIFY, 0), 0);
 564     }
 565     return TRUE;
 566     case NM_SETFOCUS:
 567         g_pChildWnd->nFocusPanel = 0;
 568         break;
 569     case LVN_BEGINLABELEDIT:
 570         Info = (NMLVDISPINFO*)lParam;
 571         if(Info)
 572         {
 573             PLINE_INFO lineinfo = (PLINE_INFO)Info->item.lParam;
 574             if(!lineinfo->name || !wcscmp(lineinfo->name, L""))
 575             {
 576                 *Result = TRUE;
 577             }
 578             else
 579             {
 580                 *Result = FALSE;
 581             }
 582         }
 583         else
 584             *Result = TRUE;
 585         return TRUE;
 586     case LVN_ENDLABELEDIT:
 587         Info = (NMLVDISPINFO*)lParam;
 588         if(Info && Info->item.pszText)
 589         {
 590             PLINE_INFO lineinfo = (PLINE_INFO)Info->item.lParam;
 591             if(!lineinfo->name || !wcscmp(lineinfo->name, L""))
 592             {
 593                 *Result = FALSE;
 594             }
 595             else
 596             {
 597                 if(wcslen(Info->item.pszText) == 0)
 598                 {
 599                     WCHAR msg[128], caption[128];
 600
 601                     LoadStringW(hInst, IDS_ERR_RENVAL_TOEMPTY, msg, COUNT_OF(msg));
 602                     LoadStringW(hInst, IDS_ERR_RENVAL_CAPTION, caption, COUNT_OF(caption));
 603                     MessageBoxW(0, msg, caption, 0);
 604                     *Result = TRUE;
 605                 }
 606                 else
 607                 {
 608                     HKEY hKeyRoot;
 609                     LPCWSTR keyPath;
 610                     LONG lResult;
 611
 612                     keyPath = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hKeyRoot);
 613                     lResult = RenameValue(hKeyRoot, keyPath, Info->item.pszText, lineinfo->name);
 614                     lineinfo->name = realloc(lineinfo->name, (wcslen(Info->item.pszText)+1)*sizeof(WCHAR));
 615                     if (lineinfo->name != NULL)
 616                         wcscpy(lineinfo->name, Info->item.pszText);
 617
 618                     *Result = TRUE;
 619                     return (lResult == ERROR_SUCCESS);
 620                 }
 621             }
 622         }
 623         else
 624             *Result = TRUE;
 625
 626         return TRUE;
 627     }
 628     return FALSE;
 629 }
 630
 631 HWND CreateListView(HWND hwndParent, HMENU id)
 632 {
 633     RECT rcClient;
 634     HWND hwndLV;
 635
 636     /* Get the dimensions of the parent window's client area, and create the list view control. */
 637     GetClientRect(hwndParent, &rcClient);
 638     hwndLV = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEW, L"List View",
 639                              WS_VISIBLE | WS_CHILD | WS_TABSTOP | LVS_REPORT | LVS_EDITLABELS | LVS_SHOWSELALWAYS,
 640                              0, 0, rcClient.right, rcClient.bottom,
 641                              hwndParent, id, hInst, NULL);
 642     if (!hwndLV) return NULL;
 643
 644     /* Initialize the image list, and add items to the control. */
 645     if (!CreateListColumns(hwndLV)) goto fail;
 646     if (!InitListViewImageLists(hwndLV)) goto fail;
 647
 648     return hwndLV;
 649 fail:
 650     DestroyWindow(hwndLV);
 651     return NULL;
 652 }
 653
 654 void DestroyListView(HWND hwndLV)
 655 {
 656     INT count, i;
 657     LVITEMW item;
 658
 659     count = ListView_GetItemCount(hwndLV);
 660     for (i = 0; i < count; i++)
 661     {
 662         item.mask = LVIF_PARAM;
 663         item.iItem = i;
 664         (void)ListView_GetItem(hwndLV, &item);
 665         free(((LINE_INFO*)item.lParam)->name);
 666         HeapFree(GetProcessHeap(), 0, (void*)item.lParam);
 667     }
 668
 669 }
 670
 671 BOOL RefreshListView(HWND hwndLV, HKEY hKey, LPCWSTR keyPath)
 672 {
 673     DWORD max_sub_key_len;
 674     DWORD max_val_name_len;
 675     DWORD max_val_size;
 676     DWORD val_count;
 677     HKEY hNewKey;
 678     LONG errCode;
 679     INT i, c;
 680     BOOL AddedDefault = FALSE;
 681
 682     if (!hwndLV) return FALSE;
 683
 684     (void)ListView_EditLabel(hwndLV, -1);
 685
 686     SendMessageW(hwndLV, WM_SETREDRAW, FALSE, 0);
 687     DestroyListView(hwndLV);
 688
 689     (void)ListView_DeleteAllItems(hwndLV);
 690
 691     if(!hKey) return FALSE;
 692
 693     errCode = RegOpenKeyExW(hKey, keyPath, 0, KEY_READ, &hNewKey);
 694     if (errCode != ERROR_SUCCESS) return FALSE;
 695
 696     /* get size information and resize the buffers if necessary */
 697     errCode = RegQueryInfoKeyW(hNewKey, NULL, NULL, NULL, NULL, &max_sub_key_len, NULL,
 698                                &val_count, &max_val_name_len, &max_val_size, NULL, NULL);
 699
 700     if (errCode == ERROR_SUCCESS)
 701     {
 702         WCHAR* ValName = HeapAlloc(GetProcessHeap(), 0, ++max_val_name_len * sizeof(WCHAR));
 703         DWORD dwValNameLen = max_val_name_len;
 704         BYTE* ValBuf = HeapAlloc(GetProcessHeap(), 0, max_val_size + sizeof(WCHAR));
 705         DWORD dwValSize = max_val_size;
 706         DWORD dwIndex = 0L;
 707         DWORD dwValType;
 708         /*                if (RegQueryValueExW(hNewKey, NULL, NULL, &dwValType, ValBuf, &dwValSize) == ERROR_SUCCESS) { */
 709         /*                    AddEntryToList(hwndLV, L"(Default)", dwValType, ValBuf, dwValSize); */
 710         /*                } */
 711         /*                dwValSize = max_val_size; */
 712         while (RegEnumValueW(hNewKey, dwIndex, ValName, &dwValNameLen, NULL, &dwValType, ValBuf, &dwValSize) == ERROR_SUCCESS)
 713         {
 714             /* Add a terminating 0 character. Usually this is only necessary for strings. */
 715             ValBuf[dwValSize] = ValBuf[dwValSize + 1] = 0;
 716
 717             AddEntryToList(hwndLV, ValName, dwValType, ValBuf, dwValSize, -1, TRUE);
 718             dwValNameLen = max_val_name_len;
 719             dwValSize = max_val_size;
 720             dwValType = 0L;
 721             ++dwIndex;
 722             if(!wcscmp(ValName, L""))
 723             {
 724                 AddedDefault = TRUE;
 725             }
 726         }
 727         HeapFree(GetProcessHeap(), 0, ValBuf);
 728         HeapFree(GetProcessHeap(), 0, ValName);
 729     }
 730     RegCloseKey(hNewKey);
 731
 732     if(!AddedDefault)
 733     {
 734         AddEntryToList(hwndLV, L"", REG_SZ, NULL, 0, 0, FALSE);
 735     }
 736     c = ListView_GetItemCount(hwndLV);
 737     for(i = 0; i < c; i++)
 738     {
 739         ListView_SetItemState(hwndLV, i, 0, LVIS_FOCUSED | LVIS_SELECTED);
 740     }
 741     ListView_SetItemState(hwndLV, iListViewSelect,
 742                           LVIS_FOCUSED | LVIS_SELECTED,
 743                           LVIS_FOCUSED | LVIS_SELECTED);
 744     (void)ListView_Sort(hwndLV, g_iSortedColumn, -1);
 745     SendMessageW(hwndLV, WM_SETREDRAW, TRUE, 0);
 746
 747     return TRUE;
 748 }