programs/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 St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <windows.h>
  22 #include <commctrl.h>
  23 #include <stdlib.h>
  24 #include <tchar.h>
  25 #include <stdio.h>
  26
  27 #include "main.h"
  28
  29 #include "wine/unicode.h"
  30 static INT Image_String;
  31 static INT Image_Binary;
  32
  33 typedef struct tagLINE_INFO
  34 {
  35     DWORD dwValType;
  36     LPTSTR name;
  37     void* val;
  38     size_t val_len;
  39 } LINE_INFO;
  40
  41 /*******************************************************************************
  42  * Global and Local Variables:
  43  */
  44
  45 static WNDPROC g_orgListWndProc;
  46 static DWORD g_columnToSort = ~0UL;
  47 static BOOL  g_invertSort = FALSE;
  48 static LPTSTR g_valueName;
  49 static LPTSTR g_currentPath;
  50 static HKEY g_currentRootKey;
  51 static TCHAR g_szValueNotSet[64];
  52
  53 #define MAX_LIST_COLUMNS (IDS_LIST_COLUMN_LAST - IDS_LIST_COLUMN_FIRST + 1)
  54 static int default_column_widths[MAX_LIST_COLUMNS] = { 200, 175, 400 };
  55 static int column_alignment[MAX_LIST_COLUMNS] = { LVCFMT_LEFT, LVCFMT_LEFT, LVCFMT_LEFT };
  56
  57 static LPTSTR get_item_text(HWND hwndLV, int item)
  58 {
  59     LPTSTR newStr, curStr;
  60     unsigned int maxLen = 128;
  61
  62     curStr = HeapAlloc(GetProcessHeap(), 0, maxLen);
  63     if (!curStr) return NULL;
  64     if (item == 0) return NULL; /* first item is ALWAYS a default */
  65     do {
  66         ListView_GetItemText(hwndLV, item, 0, curStr, maxLen);
  67         if (_tcslen(curStr) < maxLen - 1) return curStr;
  68         newStr = HeapReAlloc(GetProcessHeap(), 0, curStr, maxLen * 2);
  69         if (!newStr) break;
  70         curStr = newStr;
  71         maxLen *= 2;
  72     } while (TRUE);
  73     HeapFree(GetProcessHeap(), 0, curStr);
  74     return NULL;
  75 }
  76
  77 LPCTSTR GetValueName(HWND hwndLV)
  78 {
  79     INT item;
  80
  81     if (g_valueName != LPSTR_TEXTCALLBACK)
  82         HeapFree(GetProcessHeap(), 0,  g_valueName);
  83     g_valueName = NULL;
  84
  85     item = ListView_GetNextItem(hwndLV, -1, LVNI_FOCUSED);
  86     if (item == -1) return NULL;
  87
  88     g_valueName = get_item_text(hwndLV, item);
  89
  90     return g_valueName;
  91 }
  92
  93 /* convert '\0' separated string list into ',' separated string list */
  94 static void MakeMULTISZDisplayable(LPTSTR multi)
  95 {
  96     do
  97     {
  98         for (; *multi; multi++)
  99             ;
 100         if (*(multi+1))
 101         {
 102             *multi = ',';
 103             multi++;
 104         }
 105     } while (*multi);
 106 }
 107
 108 /*******************************************************************************
 109  * Local module support methods
 110  */
 111 static void AddEntryToList(HWND hwndLV, LPTSTR Name, DWORD dwValType,
 112     void* ValBuf, DWORD dwCount, BOOL bHighlight)
 113 {
 114     LINE_INFO* linfo;
 115     LVITEM item;
 116     int index;
 117
 118     linfo = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINE_INFO) + dwCount);
 119     linfo->dwValType = dwValType;
 120     linfo->val_len = dwCount;
 121     memcpy(&linfo[1], ValBuf, dwCount);
 122
 123     if (Name)
 124         linfo->name = _tcsdup(Name);
 125     else
 126         linfo->name = NULL;
 127
 128     item.mask = LVIF_TEXT | LVIF_PARAM | LVIF_STATE | LVIF_IMAGE;
 129     item.iItem = ListView_GetItemCount(hwndLV);/*idx;  */
 130     item.iSubItem = 0;
 131     item.state = 0;
 132     item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 133     item.pszText = Name ? Name : LPSTR_TEXTCALLBACK;
 134     item.cchTextMax = Name ? _tcslen(item.pszText) : 0;
 135     if (bHighlight) {
 136         item.stateMask = item.state = LVIS_FOCUSED | LVIS_SELECTED;
 137     }
 138     switch (dwValType)
 139     {
 140     case REG_SZ:
 141     case REG_EXPAND_SZ:
 142     case REG_MULTI_SZ:
 143         item.iImage = Image_String;
 144         break;
 145     default:
 146         item.iImage = Image_Binary;
 147         break;
 148     }
 149     item.lParam = (LPARAM)linfo;
 150
 151 #if (_WIN32_IE >= 0x0300)
 152     item.iIndent = 0;
 153 #endif
 154
 155     index = ListView_InsertItem(hwndLV, &item);
 156     if (index != -1) {
 157         switch (dwValType) {
 158         case REG_SZ:
 159         case REG_EXPAND_SZ:
 160             if (ValBuf) {
 161                 ListView_SetItemText(hwndLV, index, 2, ValBuf);
 162             } else {
 163                 ListView_SetItemText(hwndLV, index, 2, g_szValueNotSet);
 164             }
 165             break;
 166         case REG_DWORD: {
 167                 TCHAR buf[64];
 168                 wsprintf(buf, _T("0x%08X (%d)"), *(DWORD*)ValBuf, *(DWORD*)ValBuf);
 169                 ListView_SetItemText(hwndLV, index, 2, buf);
 170             }
 171             break;
 172         case REG_BINARY: {
 173                 unsigned int i;
 174                 LPBYTE pData = (LPBYTE)ValBuf;
 175                 LPTSTR strBinary = HeapAlloc(GetProcessHeap(), 0, dwCount * sizeof(TCHAR) * 3 + 1);
 176                 for (i = 0; i < dwCount; i++)
 177                     wsprintf( strBinary + i*3, _T("%02X "), pData[i] );
 178                 strBinary[dwCount * 3] = 0;
 179                 ListView_SetItemText(hwndLV, index, 2, strBinary);
 180                 HeapFree(GetProcessHeap(), 0, strBinary);
 181             }
 182             break;
 183         case REG_MULTI_SZ:
 184             MakeMULTISZDisplayable(ValBuf);
 185             ListView_SetItemText(hwndLV, index, 2, ValBuf);
 186             break;
 187         default:
 188           {
 189             TCHAR szText[128];
 190             LoadString(hInst, IDS_REGISTRY_VALUE_CANT_DISPLAY, szText, COUNT_OF(szText));
 191             ListView_SetItemText(hwndLV, index, 2, szText);
 192             break;
 193           }
 194         }
 195     }
 196 }
 197
 198 static BOOL InitListViewImageList(HWND hWndListView)
 199 {
 200     HIMAGELIST himl;
 201     HICON hicon;
 202     INT cx = GetSystemMetrics(SM_CXSMICON);
 203     INT cy = GetSystemMetrics(SM_CYSMICON);
 204
 205     himl = ImageList_Create(cx, cy, ILC_MASK, 0, 2);
 206     if (!himl)
 207         return FALSE;
 208
 209     hicon = LoadImage(hInst, MAKEINTRESOURCE(IDI_STRING),
 210         IMAGE_ICON, cx, cy, LR_DEFAULTCOLOR);
 211     Image_String = ImageList_AddIcon(himl, hicon);
 212
 213     hicon = LoadImage(hInst, MAKEINTRESOURCE(IDI_BIN),
 214         IMAGE_ICON, cx, cy, LR_DEFAULTCOLOR);
 215     Image_Binary = ImageList_AddIcon(himl, hicon);
 216
 217     SendMessage( hWndListView, LVM_SETIMAGELIST, LVSIL_SMALL, (LPARAM) himl );
 218
 219     /* fail if some of the icons failed to load */
 220     if (ImageList_GetImageCount(himl) < 2)
 221         return FALSE;
 222
 223     return TRUE;
 224 }
 225
 226 static BOOL CreateListColumns(HWND hWndListView)
 227 {
 228     TCHAR szText[50];
 229     int index;
 230     LV_COLUMN lvC;
 231
 232     /* Create columns. */
 233     lvC.mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT | LVCF_SUBITEM;
 234     lvC.pszText = szText;
 235
 236     /* Load the column labels from the resource file. */
 237     for (index = 0; index < MAX_LIST_COLUMNS; index++) {
 238         lvC.iSubItem = index;
 239         lvC.cx = default_column_widths[index];
 240         lvC.fmt = column_alignment[index];
 241         LoadString(hInst, IDS_LIST_COLUMN_FIRST + index, szText, sizeof(szText)/sizeof(TCHAR));
 242         if (ListView_InsertColumn(hWndListView, index, &lvC) == -1) return FALSE;
 243     }
 244     return TRUE;
 245 }
 246
 247 /* OnGetDispInfo - processes the LVN_GETDISPINFO notification message.  */
 248
 249 static void OnGetDispInfo(NMLVDISPINFO* plvdi)
 250 {
 251     static TCHAR buffer[200];
 252     static TCHAR reg_szT[]               = {'R','E','G','_','S','Z',0},
 253                  reg_expand_szT[]        = {'R','E','G','_','E','X','P','A','N','D','_','S','Z',0},
 254                  reg_binaryT[]           = {'R','E','G','_','B','I','N','A','R','Y',0},
 255                  reg_dwordT[]            = {'R','E','G','_','D','W','O','R','D',0},
 256                  reg_dword_big_endianT[] = {'R','E','G','_','D','W','O','R','D','_',
 257                                             'B','I','G','_','E','N','D','I','A','N',0},
 258                  reg_multi_szT[]         = {'R','E','G','_','M','U','L','T','I','_','S','Z',0},
 259                  reg_linkT[]             = {'R','E','G','_','L','I','N','K',0},
 260                  reg_resource_listT[]    = {'R','E','G','_','R','E','S','O','U','R','C','E','_','L','I','S','T',0},
 261                  reg_noneT[]             = {'R','E','G','_','N','O','N','E',0},
 262                  emptyT[]                = {0};
 263
 264     plvdi->item.pszText = NULL;
 265     plvdi->item.cchTextMax = 0;
 266
 267     switch (plvdi->item.iSubItem) {
 268     case 0:
 269         plvdi->item.pszText = (LPSTR)g_pszDefaultValueName;
 270         break;
 271     case 1:
 272         switch (((LINE_INFO*)plvdi->item.lParam)->dwValType) {
 273         case REG_SZ:
 274             plvdi->item.pszText = reg_szT;
 275             break;
 276         case REG_EXPAND_SZ:
 277             plvdi->item.pszText = reg_expand_szT;
 278             break;
 279         case REG_BINARY:
 280             plvdi->item.pszText = reg_binaryT;
 281             break;
 282         case REG_DWORD:
 283             plvdi->item.pszText = reg_dwordT;
 284             break;
 285         case REG_DWORD_BIG_ENDIAN:
 286             plvdi->item.pszText = reg_dword_big_endianT;
 287             break;
 288         case REG_MULTI_SZ:
 289             plvdi->item.pszText = reg_multi_szT;
 290             break;
 291         case REG_LINK:
 292             plvdi->item.pszText = reg_linkT;
 293             break;
 294         case REG_RESOURCE_LIST:
 295             plvdi->item.pszText = reg_resource_listT;
 296             break;
 297         case REG_NONE:
 298             plvdi->item.pszText = reg_noneT;
 299             break;
 300         default:
 301           {
 302             TCHAR szUnknownFmt[64];
 303             LoadString(hInst, IDS_REGISTRY_UNKNOWN_TYPE, szUnknownFmt, COUNT_OF(szUnknownFmt));
 304             wsprintf(buffer, szUnknownFmt, plvdi->item.lParam);
 305             plvdi->item.pszText = buffer;
 306             break;
 307           }
 308         }
 309         break;
 310     case 2:
 311         plvdi->item.pszText = g_szValueNotSet;
 312         break;
 313     case 3:
 314         plvdi->item.pszText = emptyT;
 315         break;
 316     }
 317 }
 318
 319 static int CALLBACK CompareFunc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
 320 {
 321     LINE_INFO*l, *r;
 322     l = (LINE_INFO*)lParam1;
 323     r = (LINE_INFO*)lParam2;
 324     if (!l->name) return -1;
 325     if (!r->name) return +1;
 326
 327     if (g_columnToSort == ~0UL)
 328         g_columnToSort = 0;
 329
 330     if (g_columnToSort == 1 && l->dwValType != r->dwValType)
 331         return g_invertSort ? (int)r->dwValType - (int)l->dwValType : (int)l->dwValType - (int)r->dwValType;
 332     if (g_columnToSort == 2) {
 333         /* FIXME: Sort on value */
 334     }
 335     return g_invertSort ? _tcscmp(r->name, l->name) : _tcscmp(l->name, r->name);
 336 }
 337
 338 HWND StartValueRename(HWND hwndLV)
 339 {
 340     int item;
 341
 342     item = ListView_GetNextItem(hwndLV, -1, LVNI_FOCUSED | LVNI_SELECTED);
 343     if (item < 1) { /* cannot rename default key */
 344         MessageBeep(MB_ICONHAND);
 345         return 0;
 346     }
 347     return ListView_EditLabel(hwndLV, item);
 348 }
 349
 350 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 351 {
 352     switch (LOWORD(wParam)) {
 353         /*    case ID_FILE_OPEN: */
 354         /*        break; */
 355     default:
 356         return FALSE;
 357     }
 358     return TRUE;
 359 }
 360
 361 static LRESULT CALLBACK ListWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 362 {
 363     switch (message) {
 364     case WM_COMMAND:
 365         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 366             return CallWindowProc(g_orgListWndProc, hWnd, message, wParam, lParam);
 367         }
 368         break;
 369     case WM_NOTIFY_REFLECT:
 370         switch (((LPNMHDR)lParam)->code) {
 371
 372         case LVN_BEGINLABELEDIT:
 373             if (!((NMLVDISPINFO *)lParam)->item.iItem)
 374                 return 1;
 375             return 0;
 376         case LVN_GETDISPINFO:
 377             OnGetDispInfo((NMLVDISPINFO*)lParam);
 378             break;
 379         case LVN_COLUMNCLICK:
 380             if (g_columnToSort == ((LPNMLISTVIEW)lParam)->iSubItem)
 381                 g_invertSort = !g_invertSort;
 382             else {
 383                 g_columnToSort = ((LPNMLISTVIEW)lParam)->iSubItem;
 384                 g_invertSort = FALSE;
 385             }
 386
 387             SendMessage(hWnd, LVM_SORTITEMS, (WPARAM)hWnd, (LPARAM)CompareFunc);
 388             break;
 389         case LVN_ENDLABELEDIT: {
 390                 LPNMLVDISPINFO dispInfo = (LPNMLVDISPINFO)lParam;
 391                 LPTSTR valueName = get_item_text(hWnd, dispInfo->item.iItem);
 392                 LONG ret;
 393                 if (!valueName) return -1; /* cannot rename a default value */
 394                 ret = RenameValue(hWnd, g_currentRootKey, g_currentPath, valueName, dispInfo->item.pszText);
 395                 if (ret)
 396                     RefreshListView(hWnd, g_currentRootKey, g_currentPath, dispInfo->item.pszText);
 397                 HeapFree(GetProcessHeap(), 0, valueName);
 398                 return 0;
 399             }
 400         case NM_RETURN: {
 401                 int cnt = ListView_GetNextItem(hWnd, -1, LVNI_FOCUSED | LVNI_SELECTED);
 402                 if (cnt != -1)
 403                     SendMessage(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 404             }
 405             break;
 406         case NM_DBLCLK: {
 407                 NMITEMACTIVATE* nmitem = (LPNMITEMACTIVATE)lParam;
 408                 LVHITTESTINFO info;
 409
 410                 /* if (nmitem->hdr.hwndFrom != hWnd) break; unnecessary because of WM_NOTIFY_REFLECT */
 411                 /*            if (nmitem->hdr.idFrom != IDW_LISTVIEW) break;  */
 412                 /*            if (nmitem->hdr.code != ???) break;  */
 413 #ifdef _MSC_VER
 414                 switch (nmitem->uKeyFlags) {
 415                 case LVKF_ALT:     /*  The ALT key is pressed.   */
 416                     /* properties dialog box ? */
 417                     break;
 418                 case LVKF_CONTROL: /*  The CTRL key is pressed. */
 419                     /* run dialog box for providing parameters... */
 420                     break;
 421                 case LVKF_SHIFT:   /*  The SHIFT key is pressed.    */
 422                     break;
 423                 }
 424 #endif
 425                 info.pt.x = nmitem->ptAction.x;
 426                 info.pt.y = nmitem->ptAction.y;
 427                 if (ListView_HitTest(hWnd, &info) != -1) {
 428                     ListView_SetItemState(hWnd, -1, 0, LVIS_FOCUSED|LVIS_SELECTED);
 429                     ListView_SetItemState(hWnd, info.iItem, LVIS_FOCUSED|LVIS_SELECTED,
 430                         LVIS_FOCUSED|LVIS_SELECTED);
 431                     SendMessage(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 432                 }
 433             }
 434             break;
 435
 436         default:
 437             return 0; /* shouldn't call default ! */
 438         }
 439         break;
 440     case WM_CONTEXTMENU: {
 441         int cnt = ListView_GetNextItem(hWnd, -1, LVNI_SELECTED);
 442         TrackPopupMenu(GetSubMenu(hPopupMenus, cnt == -1 ? PM_NEW : PM_MODIFYVALUE),
 443                        TPM_RIGHTBUTTON, (short)LOWORD(lParam), (short)HIWORD(lParam),
 444                        0, hFrameWnd, NULL);
 445         break;
 446     }
 447     default:
 448         return CallWindowProc(g_orgListWndProc, hWnd, message, wParam, lParam);
 449     }
 450     return 0;
 451 }
 452
 453
 454 HWND CreateListView(HWND hwndParent, int id)
 455 {
 456     RECT rcClient;
 457     HWND hwndLV;
 458
 459     /* prepare strings */
 460     LoadString(hInst, IDS_REGISTRY_VALUE_NOT_SET, g_szValueNotSet, COUNT_OF(g_szValueNotSet));
 461
 462     /* Get the dimensions of the parent window's client area, and create the list view control.  */
 463     GetClientRect(hwndParent, &rcClient);
 464     hwndLV = CreateWindowEx(WS_EX_CLIENTEDGE, WC_LISTVIEW, _T("List View"),
 465                             WS_VISIBLE | WS_CHILD | WS_TABSTOP | LVS_REPORT | LVS_EDITLABELS,
 466                             0, 0, rcClient.right, rcClient.bottom,
 467                             hwndParent, (HMENU)id, hInst, NULL);
 468     if (!hwndLV) return NULL;
 469     SendMessage(hwndLV, LVM_SETEXTENDEDLISTVIEWSTYLE, 0, LVS_EX_FULLROWSELECT);
 470
 471     /* Initialize the image list */
 472     if (!InitListViewImageList(hwndLV)) goto fail;
 473     if (!CreateListColumns(hwndLV)) goto fail;
 474     g_orgListWndProc = (WNDPROC) SetWindowLongPtr(hwndLV, GWLP_WNDPROC, (LPARAM)ListWndProc);
 475     return hwndLV;
 476 fail:
 477     DestroyWindow(hwndLV);
 478     return NULL;
 479 }
 480
 481 BOOL RefreshListView(HWND hwndLV, HKEY hKeyRoot, LPCTSTR keyPath, LPCTSTR highlightValue)
 482 {
 483     BOOL result = FALSE;
 484     DWORD max_sub_key_len;
 485     DWORD max_val_name_len, valNameLen;
 486     DWORD max_val_size, valSize;
 487     DWORD val_count, index, valType;
 488     TCHAR* valName = 0;
 489     BYTE* valBuf = 0;
 490     HKEY hKey = 0;
 491     LONG errCode;
 492     INT count, i;
 493     LVITEM item;
 494
 495     if (!hwndLV) return FALSE;
 496
 497     SendMessage(hwndLV, WM_SETREDRAW, FALSE, 0);
 498
 499     errCode = RegOpenKeyEx(hKeyRoot, keyPath, 0, KEY_READ, &hKey);
 500     if (errCode != ERROR_SUCCESS) goto done;
 501
 502     count = ListView_GetItemCount(hwndLV);
 503     for (i = 0; i < count; i++) {
 504         item.mask = LVIF_PARAM;
 505         item.iItem = i;
 506         SendMessage( hwndLV, LVM_GETITEM, 0, (LPARAM)&item );
 507         free(((LINE_INFO*)item.lParam)->name);
 508         HeapFree(GetProcessHeap(), 0, (void*)item.lParam);
 509     }
 510     g_columnToSort = ~0UL;
 511     SendMessage( hwndLV, LVM_DELETEALLITEMS, 0, 0L );
 512
 513     /* get size information and resize the buffers if necessary */
 514     errCode = RegQueryInfoKey(hKey, NULL, NULL, NULL, NULL, &max_sub_key_len, NULL,
 515                               &val_count, &max_val_name_len, &max_val_size, NULL, NULL);
 516     if (errCode != ERROR_SUCCESS) goto done;
 517
 518     /* account for the terminator char */
 519     max_val_name_len++;
 520     max_val_size++;
 521
 522     valName = HeapAlloc(GetProcessHeap(), 0, max_val_name_len * sizeof(TCHAR));
 523     valBuf = HeapAlloc(GetProcessHeap(), 0, max_val_size);
 524     if (RegQueryValueEx(hKey, NULL, NULL, &valType, valBuf, &valSize) == ERROR_FILE_NOT_FOUND) {
 525         AddEntryToList(hwndLV, NULL, REG_SZ, NULL, 0, !highlightValue);
 526     }
 527     for(index = 0; index < val_count; index++) {
 528         BOOL bSelected = (valName == highlightValue); /* NOT a bug, we check for double NULL here */
 529         valNameLen = max_val_name_len;
 530         valSize = max_val_size;
 531         valType = 0;
 532         errCode = RegEnumValue(hKey, index, valName, &valNameLen, NULL, &valType, valBuf, &valSize);
 533         if (errCode != ERROR_SUCCESS) goto done;
 534         valBuf[valSize] = 0;
 535         if (valName && highlightValue && !_tcscmp(valName, highlightValue))
 536             bSelected = TRUE;
 537         AddEntryToList(hwndLV, valName[0] ? valName : NULL, valType, valBuf, valSize, bSelected);
 538     }
 539     SendMessage(hwndLV, LVM_SORTITEMS, (WPARAM)hwndLV, (LPARAM)CompareFunc);
 540
 541     g_currentRootKey = hKeyRoot;
 542     if (keyPath != g_currentPath) {
 543         HeapFree(GetProcessHeap(), 0, g_currentPath);
 544         g_currentPath = HeapAlloc(GetProcessHeap(), 0, (lstrlen(keyPath) + 1) * sizeof(TCHAR));
 545         if (!g_currentPath) goto done;
 546         lstrcpy(g_currentPath, keyPath);
 547     }
 548
 549     result = TRUE;
 550
 551 done:
 552     HeapFree(GetProcessHeap(), 0, valBuf);
 553     HeapFree(GetProcessHeap(), 0, valName);
 554     SendMessage(hwndLV, WM_SETREDRAW, TRUE, 0);
 555     if (hKey) RegCloseKey(hKey);
 556
 557     return result;
 558 }