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 = ~0U;
  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) { /* first item is ALWAYS a default */
  65         HeapFree(GetProcessHeap(), 0, curStr);
  66         return NULL;
  67     }
  68     do {
  69         ListView_GetItemText(hwndLV, item, 0, curStr, maxLen);
  70         if (_tcslen(curStr) < maxLen - 1) return curStr;
  71         newStr = HeapReAlloc(GetProcessHeap(), 0, curStr, maxLen * 2);
  72         if (!newStr) break;
  73         curStr = newStr;
  74         maxLen *= 2;
  75     } while (TRUE);
  76     HeapFree(GetProcessHeap(), 0, curStr);
  77     return NULL;
  78 }
  79
  80 LPCTSTR GetValueName(HWND hwndLV)
  81 {
  82     INT item;
  83
  84     if (g_valueName != LPSTR_TEXTCALLBACK)
  85         HeapFree(GetProcessHeap(), 0,  g_valueName);
  86     g_valueName = NULL;
  87
  88     item = ListView_GetNextItem(hwndLV, -1, LVNI_FOCUSED);
  89     if (item == -1) return NULL;
  90
  91     g_valueName = get_item_text(hwndLV, item);
  92
  93     return g_valueName;
  94 }
  95
  96 /* convert '\0' separated string list into ',' separated string list */
  97 static void MakeMULTISZDisplayable(LPTSTR multi)
  98 {
  99     do
 100     {
 101         for (; *multi; multi++)
 102             ;
 103         if (*(multi+1))
 104         {
 105             *multi = ',';
 106             multi++;
 107         }
 108     } while (*multi);
 109 }
 110
 111 /*******************************************************************************
 112  * Local module support methods
 113  */
 114 static void AddEntryToList(HWND hwndLV, LPTSTR Name, DWORD dwValType,
 115     void* ValBuf, DWORD dwCount, BOOL bHighlight)
 116 {
 117     LINE_INFO* linfo;
 118     LVITEM item;
 119     int index;
 120
 121     linfo = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINE_INFO) + dwCount);
 122     linfo->dwValType = dwValType;
 123     linfo->val_len = dwCount;
 124     memcpy(&linfo[1], ValBuf, dwCount);
 125
 126     if (Name)
 127         linfo->name = _tcsdup(Name);
 128     else
 129         linfo->name = NULL;
 130
 131     item.mask = LVIF_TEXT | LVIF_PARAM | LVIF_STATE | LVIF_IMAGE;
 132     item.iItem = ListView_GetItemCount(hwndLV);/*idx;  */
 133     item.iSubItem = 0;
 134     item.state = 0;
 135     item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 136     item.pszText = Name ? Name : LPSTR_TEXTCALLBACK;
 137     item.cchTextMax = Name ? _tcslen(item.pszText) : 0;
 138     if (bHighlight) {
 139         item.stateMask = item.state = LVIS_FOCUSED | LVIS_SELECTED;
 140     }
 141     switch (dwValType)
 142     {
 143     case REG_SZ:
 144     case REG_EXPAND_SZ:
 145     case REG_MULTI_SZ:
 146         item.iImage = Image_String;
 147         break;
 148     default:
 149         item.iImage = Image_Binary;
 150         break;
 151     }
 152     item.lParam = (LPARAM)linfo;
 153
 154 #if (_WIN32_IE >= 0x0300)
 155     item.iIndent = 0;
 156 #endif
 157
 158     index = ListView_InsertItem(hwndLV, &item);
 159     if (index != -1) {
 160         switch (dwValType) {
 161         case REG_SZ:
 162         case REG_EXPAND_SZ:
 163             if (ValBuf) {
 164                 ListView_SetItemText(hwndLV, index, 2, ValBuf);
 165             } else {
 166                 ListView_SetItemText(hwndLV, index, 2, g_szValueNotSet);
 167             }
 168             break;
 169         case REG_DWORD: {
 170                 TCHAR buf[64];
 171                 wsprintf(buf, _T("0x%08x (%u)"), *(DWORD*)ValBuf, *(DWORD*)ValBuf);
 172                 ListView_SetItemText(hwndLV, index, 2, buf);
 173             }
 174             break;
 175         case REG_BINARY: {
 176                 unsigned int i;
 177                 LPBYTE pData = (LPBYTE)ValBuf;
 178                 LPTSTR strBinary = HeapAlloc(GetProcessHeap(), 0, dwCount * sizeof(TCHAR) * 3 + 1);
 179                 for (i = 0; i < dwCount; i++)
 180                     wsprintf( strBinary + i*3, _T("%02X "), pData[i] );
 181                 strBinary[dwCount * 3] = 0;
 182                 ListView_SetItemText(hwndLV, index, 2, strBinary);
 183                 HeapFree(GetProcessHeap(), 0, strBinary);
 184             }
 185             break;
 186         case REG_MULTI_SZ:
 187             MakeMULTISZDisplayable(ValBuf);
 188             ListView_SetItemText(hwndLV, index, 2, ValBuf);
 189             break;
 190         default:
 191           {
 192             TCHAR szText[128];
 193             LoadString(hInst, IDS_REGISTRY_VALUE_CANT_DISPLAY, szText, COUNT_OF(szText));
 194             ListView_SetItemText(hwndLV, index, 2, szText);
 195             break;
 196           }
 197         }
 198     }
 199 }
 200
 201 static BOOL InitListViewImageList(HWND hWndListView)
 202 {
 203     HIMAGELIST himl;
 204     HICON hicon;
 205     INT cx = GetSystemMetrics(SM_CXSMICON);
 206     INT cy = GetSystemMetrics(SM_CYSMICON);
 207
 208     himl = ImageList_Create(cx, cy, ILC_MASK, 0, 2);
 209     if (!himl)
 210         return FALSE;
 211
 212     hicon = LoadImage(hInst, MAKEINTRESOURCE(IDI_STRING),
 213         IMAGE_ICON, cx, cy, LR_DEFAULTCOLOR);
 214     Image_String = ImageList_AddIcon(himl, hicon);
 215
 216     hicon = LoadImage(hInst, MAKEINTRESOURCE(IDI_BIN),
 217         IMAGE_ICON, cx, cy, LR_DEFAULTCOLOR);
 218     Image_Binary = ImageList_AddIcon(himl, hicon);
 219
 220     SendMessage( hWndListView, LVM_SETIMAGELIST, LVSIL_SMALL, (LPARAM) himl );
 221
 222     /* fail if some of the icons failed to load */
 223     if (ImageList_GetImageCount(himl) < 2)
 224         return FALSE;
 225
 226     return TRUE;
 227 }
 228
 229 static BOOL CreateListColumns(HWND hWndListView)
 230 {
 231     TCHAR szText[50];
 232     int index;
 233     LV_COLUMN lvC;
 234
 235     /* Create columns. */
 236     lvC.mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT | LVCF_SUBITEM;
 237     lvC.pszText = szText;
 238
 239     /* Load the column labels from the resource file. */
 240     for (index = 0; index < MAX_LIST_COLUMNS; index++) {
 241         lvC.iSubItem = index;
 242         lvC.cx = default_column_widths[index];
 243         lvC.fmt = column_alignment[index];
 244         LoadString(hInst, IDS_LIST_COLUMN_FIRST + index, szText, sizeof(szText)/sizeof(TCHAR));
 245         if (ListView_InsertColumn(hWndListView, index, &lvC) == -1) return FALSE;
 246     }
 247     return TRUE;
 248 }
 249
 250 /* OnGetDispInfo - processes the LVN_GETDISPINFO notification message.  */
 251
 252 static void OnGetDispInfo(NMLVDISPINFO* plvdi)
 253 {
 254     static TCHAR buffer[200];
 255     static TCHAR reg_szT[]               = {'R','E','G','_','S','Z',0},
 256                  reg_expand_szT[]        = {'R','E','G','_','E','X','P','A','N','D','_','S','Z',0},
 257                  reg_binaryT[]           = {'R','E','G','_','B','I','N','A','R','Y',0},
 258                  reg_dwordT[]            = {'R','E','G','_','D','W','O','R','D',0},
 259                  reg_dword_big_endianT[] = {'R','E','G','_','D','W','O','R','D','_',
 260                                             'B','I','G','_','E','N','D','I','A','N',0},
 261                  reg_multi_szT[]         = {'R','E','G','_','M','U','L','T','I','_','S','Z',0},
 262                  reg_linkT[]             = {'R','E','G','_','L','I','N','K',0},
 263                  reg_resource_listT[]    = {'R','E','G','_','R','E','S','O','U','R','C','E','_','L','I','S','T',0},
 264                  reg_noneT[]             = {'R','E','G','_','N','O','N','E',0},
 265                  emptyT[]                = {0};
 266
 267     plvdi->item.pszText = NULL;
 268     plvdi->item.cchTextMax = 0;
 269
 270     switch (plvdi->item.iSubItem) {
 271     case 0:
 272         plvdi->item.pszText = (LPSTR)g_pszDefaultValueName;
 273         break;
 274     case 1:
 275         switch (((LINE_INFO*)plvdi->item.lParam)->dwValType) {
 276         case REG_SZ:
 277             plvdi->item.pszText = reg_szT;
 278             break;
 279         case REG_EXPAND_SZ:
 280             plvdi->item.pszText = reg_expand_szT;
 281             break;
 282         case REG_BINARY:
 283             plvdi->item.pszText = reg_binaryT;
 284             break;
 285         case REG_DWORD:
 286             plvdi->item.pszText = reg_dwordT;
 287             break;
 288         case REG_DWORD_BIG_ENDIAN:
 289             plvdi->item.pszText = reg_dword_big_endianT;
 290             break;
 291         case REG_MULTI_SZ:
 292             plvdi->item.pszText = reg_multi_szT;
 293             break;
 294         case REG_LINK:
 295             plvdi->item.pszText = reg_linkT;
 296             break;
 297         case REG_RESOURCE_LIST:
 298             plvdi->item.pszText = reg_resource_listT;
 299             break;
 300         case REG_NONE:
 301             plvdi->item.pszText = reg_noneT;
 302             break;
 303         default:
 304           {
 305             TCHAR szUnknownFmt[64];
 306             LoadString(hInst, IDS_REGISTRY_UNKNOWN_TYPE, szUnknownFmt, COUNT_OF(szUnknownFmt));
 307             wsprintf(buffer, szUnknownFmt, plvdi->item.lParam);
 308             plvdi->item.pszText = buffer;
 309             break;
 310           }
 311         }
 312         break;
 313     case 2:
 314         plvdi->item.pszText = g_szValueNotSet;
 315         break;
 316     case 3:
 317         plvdi->item.pszText = emptyT;
 318         break;
 319     }
 320 }
 321
 322 static int CALLBACK CompareFunc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
 323 {
 324     LINE_INFO*l, *r;
 325     l = (LINE_INFO*)lParam1;
 326     r = (LINE_INFO*)lParam2;
 327     if (!l->name) return -1;
 328     if (!r->name) return +1;
 329
 330     if (g_columnToSort == ~0U)
 331         g_columnToSort = 0;
 332
 333     if (g_columnToSort == 1 && l->dwValType != r->dwValType)
 334         return g_invertSort ? (int)r->dwValType - (int)l->dwValType : (int)l->dwValType - (int)r->dwValType;
 335     if (g_columnToSort == 2) {
 336         /* FIXME: Sort on value */
 337     }
 338     return g_invertSort ? _tcscmp(r->name, l->name) : _tcscmp(l->name, r->name);
 339 }
 340
 341 HWND StartValueRename(HWND hwndLV)
 342 {
 343     int item;
 344
 345     item = ListView_GetNextItem(hwndLV, -1, LVNI_FOCUSED | LVNI_SELECTED);
 346     if (item < 1) { /* cannot rename default key */
 347         MessageBeep(MB_ICONHAND);
 348         return 0;
 349     }
 350     return ListView_EditLabel(hwndLV, item);
 351 }
 352
 353 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 354 {
 355     switch (LOWORD(wParam)) {
 356         /*    case ID_FILE_OPEN: */
 357         /*        break; */
 358     default:
 359         return FALSE;
 360     }
 361     return TRUE;
 362 }
 363
 364 static LRESULT CALLBACK ListWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 365 {
 366     switch (message) {
 367     case WM_COMMAND:
 368         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 369             return CallWindowProc(g_orgListWndProc, hWnd, message, wParam, lParam);
 370         }
 371         break;
 372     case WM_NOTIFY_REFLECT:
 373         switch (((LPNMHDR)lParam)->code) {
 374
 375         case LVN_BEGINLABELEDIT:
 376             if (!((NMLVDISPINFO *)lParam)->item.iItem)
 377                 return 1;
 378             return 0;
 379         case LVN_GETDISPINFO:
 380             OnGetDispInfo((NMLVDISPINFO*)lParam);
 381             break;
 382         case LVN_COLUMNCLICK:
 383             if (g_columnToSort == ((LPNMLISTVIEW)lParam)->iSubItem)
 384                 g_invertSort = !g_invertSort;
 385             else {
 386                 g_columnToSort = ((LPNMLISTVIEW)lParam)->iSubItem;
 387                 g_invertSort = FALSE;
 388             }
 389
 390             SendMessage(hWnd, LVM_SORTITEMS, (WPARAM)hWnd, (LPARAM)CompareFunc);
 391             break;
 392         case LVN_ENDLABELEDIT: {
 393                 LPNMLVDISPINFO dispInfo = (LPNMLVDISPINFO)lParam;
 394                 LPTSTR valueName = get_item_text(hWnd, dispInfo->item.iItem);
 395                 LONG ret;
 396                 if (!valueName) return -1; /* cannot rename a default value */
 397                 ret = RenameValue(hWnd, g_currentRootKey, g_currentPath, valueName, dispInfo->item.pszText);
 398                 if (ret)
 399                     RefreshListView(hWnd, g_currentRootKey, g_currentPath, dispInfo->item.pszText);
 400                 HeapFree(GetProcessHeap(), 0, valueName);
 401                 return 0;
 402             }
 403         case NM_RETURN: {
 404                 int cnt = ListView_GetNextItem(hWnd, -1, LVNI_FOCUSED | LVNI_SELECTED);
 405                 if (cnt != -1)
 406                     SendMessage(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 407             }
 408             break;
 409         case NM_DBLCLK: {
 410                 NMITEMACTIVATE* nmitem = (LPNMITEMACTIVATE)lParam;
 411                 LVHITTESTINFO info;
 412
 413                 /* if (nmitem->hdr.hwndFrom != hWnd) break; unnecessary because of WM_NOTIFY_REFLECT */
 414                 /*            if (nmitem->hdr.idFrom != IDW_LISTVIEW) break;  */
 415                 /*            if (nmitem->hdr.code != ???) break;  */
 416 #ifdef _MSC_VER
 417                 switch (nmitem->uKeyFlags) {
 418                 case LVKF_ALT:     /*  The ALT key is pressed.   */
 419                     /* properties dialog box ? */
 420                     break;
 421                 case LVKF_CONTROL: /*  The CTRL key is pressed. */
 422                     /* run dialog box for providing parameters... */
 423                     break;
 424                 case LVKF_SHIFT:   /*  The SHIFT key is pressed.    */
 425                     break;
 426                 }
 427 #endif
 428                 info.pt.x = nmitem->ptAction.x;
 429                 info.pt.y = nmitem->ptAction.y;
 430                 if (ListView_HitTest(hWnd, &info) != -1) {
 431                     ListView_SetItemState(hWnd, -1, 0, LVIS_FOCUSED|LVIS_SELECTED);
 432                     ListView_SetItemState(hWnd, info.iItem, LVIS_FOCUSED|LVIS_SELECTED,
 433                         LVIS_FOCUSED|LVIS_SELECTED);
 434                     SendMessage(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 435                 }
 436             }
 437             break;
 438
 439         default:
 440             return 0; /* shouldn't call default ! */
 441         }
 442         break;
 443     case WM_CONTEXTMENU: {
 444         int cnt = ListView_GetNextItem(hWnd, -1, LVNI_SELECTED);
 445         TrackPopupMenu(GetSubMenu(hPopupMenus, cnt == -1 ? PM_NEW : PM_MODIFYVALUE),
 446                        TPM_RIGHTBUTTON, (short)LOWORD(lParam), (short)HIWORD(lParam),
 447                        0, hFrameWnd, NULL);
 448         break;
 449     }
 450     default:
 451         return CallWindowProc(g_orgListWndProc, hWnd, message, wParam, lParam);
 452     }
 453     return 0;
 454 }
 455
 456
 457 HWND CreateListView(HWND hwndParent, UINT id)
 458 {
 459     RECT rcClient;
 460     HWND hwndLV;
 461
 462     /* prepare strings */
 463     LoadString(hInst, IDS_REGISTRY_VALUE_NOT_SET, g_szValueNotSet, COUNT_OF(g_szValueNotSet));
 464
 465     /* Get the dimensions of the parent window's client area, and create the list view control.  */
 466     GetClientRect(hwndParent, &rcClient);
 467     hwndLV = CreateWindowEx(WS_EX_CLIENTEDGE, WC_LISTVIEW, _T("List View"),
 468                             WS_VISIBLE | WS_CHILD | WS_TABSTOP | LVS_REPORT | LVS_EDITLABELS,
 469                             0, 0, rcClient.right, rcClient.bottom,
 470                             hwndParent, (HMENU)ULongToHandle(id), hInst, NULL);
 471     if (!hwndLV) return NULL;
 472     SendMessage(hwndLV, LVM_SETEXTENDEDLISTVIEWSTYLE, 0, LVS_EX_FULLROWSELECT);
 473
 474     /* Initialize the image list */
 475     if (!InitListViewImageList(hwndLV)) goto fail;
 476     if (!CreateListColumns(hwndLV)) goto fail;
 477     g_orgListWndProc = (WNDPROC) SetWindowLongPtr(hwndLV, GWLP_WNDPROC, (LPARAM)ListWndProc);
 478     return hwndLV;
 479 fail:
 480     DestroyWindow(hwndLV);
 481     return NULL;
 482 }
 483
 484 BOOL RefreshListView(HWND hwndLV, HKEY hKeyRoot, LPCTSTR keyPath, LPCTSTR highlightValue)
 485 {
 486     BOOL result = FALSE;
 487     DWORD max_sub_key_len;
 488     DWORD max_val_name_len, valNameLen;
 489     DWORD max_val_size, valSize;
 490     DWORD val_count, index, valType;
 491     TCHAR* valName = 0;
 492     BYTE* valBuf = 0;
 493     HKEY hKey = 0;
 494     LONG errCode;
 495     INT count, i;
 496     LVITEM item;
 497
 498     if (!hwndLV) return FALSE;
 499
 500     SendMessage(hwndLV, WM_SETREDRAW, FALSE, 0);
 501
 502     errCode = RegOpenKeyEx(hKeyRoot, keyPath, 0, KEY_READ, &hKey);
 503     if (errCode != ERROR_SUCCESS) goto done;
 504
 505     count = ListView_GetItemCount(hwndLV);
 506     for (i = 0; i < count; i++) {
 507         item.mask = LVIF_PARAM;
 508         item.iItem = i;
 509         SendMessage( hwndLV, LVM_GETITEM, 0, (LPARAM)&item );
 510         free(((LINE_INFO*)item.lParam)->name);
 511         HeapFree(GetProcessHeap(), 0, (void*)item.lParam);
 512     }
 513     g_columnToSort = ~0U;
 514     SendMessage( hwndLV, LVM_DELETEALLITEMS, 0, 0L );
 515
 516     /* get size information and resize the buffers if necessary */
 517     errCode = RegQueryInfoKey(hKey, NULL, NULL, NULL, NULL, &max_sub_key_len, NULL,
 518                               &val_count, &max_val_name_len, &max_val_size, NULL, NULL);
 519     if (errCode != ERROR_SUCCESS) goto done;
 520
 521     /* account for the terminator char */
 522     max_val_name_len++;
 523     max_val_size++;
 524
 525     valName = HeapAlloc(GetProcessHeap(), 0, max_val_name_len * sizeof(TCHAR));
 526     valBuf = HeapAlloc(GetProcessHeap(), 0, max_val_size);
 527     if (RegQueryValueEx(hKey, NULL, NULL, &valType, valBuf, &valSize) == ERROR_FILE_NOT_FOUND) {
 528         AddEntryToList(hwndLV, NULL, REG_SZ, NULL, 0, !highlightValue);
 529     }
 530     for(index = 0; index < val_count; index++) {
 531         BOOL bSelected = (valName == highlightValue); /* NOT a bug, we check for double NULL here */
 532         valNameLen = max_val_name_len;
 533         valSize = max_val_size;
 534         valType = 0;
 535         errCode = RegEnumValue(hKey, index, valName, &valNameLen, NULL, &valType, valBuf, &valSize);
 536         if (errCode != ERROR_SUCCESS) goto done;
 537         valBuf[valSize] = 0;
 538         if (valName && highlightValue && !_tcscmp(valName, highlightValue))
 539             bSelected = TRUE;
 540         AddEntryToList(hwndLV, valName[0] ? valName : NULL, valType, valBuf, valSize, bSelected);
 541     }
 542     SendMessage(hwndLV, LVM_SORTITEMS, (WPARAM)hwndLV, (LPARAM)CompareFunc);
 543
 544     g_currentRootKey = hKeyRoot;
 545     if (keyPath != g_currentPath) {
 546         HeapFree(GetProcessHeap(), 0, g_currentPath);
 547         g_currentPath = HeapAlloc(GetProcessHeap(), 0, (lstrlen(keyPath) + 1) * sizeof(TCHAR));
 548         if (!g_currentPath) goto done;
 549         lstrcpy(g_currentPath, keyPath);
 550     }
 551
 552     result = TRUE;
 553
 554 done:
 555     HeapFree(GetProcessHeap(), 0, valBuf);
 556     HeapFree(GetProcessHeap(), 0, valName);
 557     SendMessage(hwndLV, WM_SETREDRAW, TRUE, 0);
 558     if (hKey) RegCloseKey(hKey);
 559
 560     return result;
 561 }