programs/regedit/listview.c

   1 /*
   2  * Regedit listviews
   3  *
   4  * Copyright (C) 2002 Robert Dickenson <robd@reactos.org>
   5  * Copyright (C) 2008 Alexander N. Sørnes <alex@thehandofagony.com>
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include <windows.h>
  23 #include <commctrl.h>
  24 #include <stdlib.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     LPWSTR 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 LPWSTR g_valueName;
  49 static LPWSTR g_currentPath;
  50 static HKEY g_currentRootKey;
  51 static WCHAR 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 LPWSTR GetItemText(HWND hwndLV, UINT item)
  58 {
  59     LPWSTR newStr, curStr;
  60     unsigned int maxLen = 128;
  61     if (item == 0) return NULL; /* first item is ALWAYS a default */
  62
  63     curStr = HeapAlloc(GetProcessHeap(), 0, maxLen * sizeof(WCHAR));
  64     if (!curStr) return NULL;
  65     do {
  66         ListView_GetItemTextW(hwndLV, item, 0, curStr, maxLen);
  67         if (lstrlenW(curStr) < maxLen - 1) return curStr;
  68         maxLen *= 2;
  69         newStr = HeapReAlloc(GetProcessHeap(), 0, curStr, maxLen * sizeof(WCHAR));
  70         if (!newStr) break;
  71         curStr = newStr;
  72     } while (TRUE);
  73     HeapFree(GetProcessHeap(), 0, curStr);
  74     return NULL;
  75 }
  76
  77 LPCWSTR GetValueName(HWND hwndLV)
  78 {
  79     INT item;
  80
  81     if (g_valueName != LPSTR_TEXTCALLBACKW)
  82         HeapFree(GetProcessHeap(), 0,  g_valueName);
  83     g_valueName = NULL;
  84
  85     item = SendMessageW(hwndLV, LVM_GETNEXTITEM, -1, MAKELPARAM(LVNI_FOCUSED, 0));
  86     if (item == -1) return NULL;
  87
  88     g_valueName = GetItemText(hwndLV, item);
  89
  90     return g_valueName;
  91 }
  92
  93 /* convert '\0' separated string list into ',' separated string list */
  94 static void MakeMULTISZDisplayable(LPWSTR 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, LPWSTR Name, DWORD dwValType,
 112     void* ValBuf, DWORD dwCount, BOOL bHighlight)
 113 {
 114     LINE_INFO* linfo;
 115     LVITEMW 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     CopyMemory(&linfo[1], ValBuf, dwCount);
 122
 123     if (Name)
 124     {
 125         linfo->name = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(Name) + 1) * sizeof(WCHAR));
 126         lstrcpyW(linfo->name, Name);
 127     } else
 128     {
 129         linfo->name = NULL;
 130     }
 131
 132     item.mask = LVIF_TEXT | LVIF_PARAM | LVIF_STATE | LVIF_IMAGE;
 133     item.iItem = SendMessageW(hwndLV, LVM_GETITEMCOUNT, 0, 0);
 134     item.iSubItem = 0;
 135     item.state = 0;
 136     item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 137     item.pszText = Name ? Name : LPSTR_TEXTCALLBACKW;
 138     item.cchTextMax = Name ? lstrlenW(item.pszText) : 0;
 139     if (bHighlight) {
 140         item.stateMask = item.state = LVIS_FOCUSED | LVIS_SELECTED;
 141     }
 142     switch (dwValType)
 143     {
 144     case REG_SZ:
 145     case REG_EXPAND_SZ:
 146     case REG_MULTI_SZ:
 147         item.iImage = Image_String;
 148         break;
 149     default:
 150         item.iImage = Image_Binary;
 151         break;
 152     }
 153     item.lParam = (LPARAM)linfo;
 154
 155 #if (_WIN32_IE >= 0x0300)
 156     item.iIndent = 0;
 157 #endif
 158
 159     index = ListView_InsertItemW(hwndLV, &item);
 160     if (index != -1) {
 161         switch (dwValType) {
 162         case REG_SZ:
 163         case REG_EXPAND_SZ:
 164             if (ValBuf) {
 165                 ListView_SetItemTextW(hwndLV, index, 2, ValBuf);
 166             } else {
 167                 ListView_SetItemTextW(hwndLV, index, 2, g_szValueNotSet);
 168             }
 169             break;
 170         case REG_DWORD: {
 171                 WCHAR buf[64];
 172                 WCHAR format[] = {'0','x','%','0','8','x',' ','(','%','u',')',0};
 173                 wsprintfW(buf, format, *(DWORD*)ValBuf, *(DWORD*)ValBuf);
 174                 ListView_SetItemTextW(hwndLV, index, 2, buf);
 175             }
 176             break;
 177         case REG_BINARY: {
 178                 unsigned int i;
 179                 LPBYTE pData = ValBuf;
 180                 LPWSTR strBinary = HeapAlloc(GetProcessHeap(), 0, dwCount * sizeof(WCHAR) * 3 + sizeof(WCHAR));
 181                 WCHAR format[] = {'%','0','2','X',' ',0};
 182                 for (i = 0; i < dwCount; i++)
 183                     wsprintfW( strBinary + i*3, format, pData[i] );
 184                 strBinary[dwCount * 3] = 0;
 185                 ListView_SetItemTextW(hwndLV, index, 2, strBinary);
 186                 HeapFree(GetProcessHeap(), 0, strBinary);
 187             }
 188             break;
 189         case REG_MULTI_SZ:
 190             MakeMULTISZDisplayable(ValBuf);
 191             ListView_SetItemTextW(hwndLV, index, 2, ValBuf);
 192             break;
 193         default:
 194           {
 195             WCHAR szText[128];
 196             LoadStringW(hInst, IDS_REGISTRY_VALUE_CANT_DISPLAY, szText, COUNT_OF(szText));
 197             ListView_SetItemTextW(hwndLV, index, 2, szText);
 198             break;
 199           }
 200         }
 201     }
 202 }
 203
 204 static BOOL InitListViewImageList(HWND hWndListView)
 205 {
 206     HIMAGELIST himl;
 207     HICON hicon;
 208     INT cx = GetSystemMetrics(SM_CXSMICON);
 209     INT cy = GetSystemMetrics(SM_CYSMICON);
 210
 211     himl = ImageList_Create(cx, cy, ILC_MASK, 0, 2);
 212     if (!himl)
 213         return FALSE;
 214
 215     hicon = LoadImageW(hInst, MAKEINTRESOURCEW(IDI_STRING),
 216         IMAGE_ICON, cx, cy, LR_DEFAULTCOLOR);
 217     Image_String = ImageList_AddIcon(himl, hicon);
 218
 219     hicon = LoadImageW(hInst, MAKEINTRESOURCEW(IDI_BIN),
 220         IMAGE_ICON, cx, cy, LR_DEFAULTCOLOR);
 221     Image_Binary = ImageList_AddIcon(himl, hicon);
 222
 223     SendMessageW( hWndListView, LVM_SETIMAGELIST, LVSIL_SMALL, (LPARAM) himl );
 224
 225     /* fail if some of the icons failed to load */
 226     if (ImageList_GetImageCount(himl) < 2)
 227         return FALSE;
 228
 229     return TRUE;
 230 }
 231
 232 static BOOL CreateListColumns(HWND hWndListView)
 233 {
 234     WCHAR szText[50];
 235     int index;
 236     LVCOLUMNW lvC;
 237
 238     /* Create columns. */
 239     lvC.mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT | LVCF_SUBITEM;
 240     lvC.pszText = szText;
 241
 242     /* Load the column labels from the resource file. */
 243     for (index = 0; index < MAX_LIST_COLUMNS; index++) {
 244         lvC.iSubItem = index;
 245         lvC.cx = default_column_widths[index];
 246         lvC.fmt = column_alignment[index];
 247         LoadStringW(hInst, IDS_LIST_COLUMN_FIRST + index, szText, sizeof(szText)/sizeof(WCHAR));
 248         if (ListView_InsertColumnW(hWndListView, index, &lvC) == -1) return FALSE;
 249     }
 250     return TRUE;
 251 }
 252
 253 /* OnGetDispInfo - processes the LVN_GETDISPINFO notification message.  */
 254
 255 static void OnGetDispInfo(NMLVDISPINFOW* plvdi)
 256 {
 257     static WCHAR buffer[200];
 258     static WCHAR reg_szT[]               = {'R','E','G','_','S','Z',0},
 259                  reg_expand_szT[]        = {'R','E','G','_','E','X','P','A','N','D','_','S','Z',0},
 260                  reg_binaryT[]           = {'R','E','G','_','B','I','N','A','R','Y',0},
 261                  reg_dwordT[]            = {'R','E','G','_','D','W','O','R','D',0},
 262                  reg_dword_big_endianT[] = {'R','E','G','_','D','W','O','R','D','_',
 263                                             'B','I','G','_','E','N','D','I','A','N',0},
 264                  reg_multi_szT[]         = {'R','E','G','_','M','U','L','T','I','_','S','Z',0},
 265                  reg_linkT[]             = {'R','E','G','_','L','I','N','K',0},
 266                  reg_resource_listT[]    = {'R','E','G','_','R','E','S','O','U','R','C','E','_','L','I','S','T',0},
 267                  reg_noneT[]             = {'R','E','G','_','N','O','N','E',0},
 268                  emptyT[]                = {0};
 269
 270     plvdi->item.pszText = NULL;
 271     plvdi->item.cchTextMax = 0;
 272
 273     switch (plvdi->item.iSubItem) {
 274     case 0:
 275         plvdi->item.pszText = g_pszDefaultValueName;
 276         break;
 277     case 1:
 278         switch (((LINE_INFO*)plvdi->item.lParam)->dwValType) {
 279         case REG_SZ:
 280             plvdi->item.pszText = reg_szT;
 281             break;
 282         case REG_EXPAND_SZ:
 283             plvdi->item.pszText = reg_expand_szT;
 284             break;
 285         case REG_BINARY:
 286             plvdi->item.pszText = reg_binaryT;
 287             break;
 288         case REG_DWORD:
 289             plvdi->item.pszText = reg_dwordT;
 290             break;
 291         case REG_DWORD_BIG_ENDIAN:
 292             plvdi->item.pszText = reg_dword_big_endianT;
 293             break;
 294         case REG_MULTI_SZ:
 295             plvdi->item.pszText = reg_multi_szT;
 296             break;
 297         case REG_LINK:
 298             plvdi->item.pszText = reg_linkT;
 299             break;
 300         case REG_RESOURCE_LIST:
 301             plvdi->item.pszText = reg_resource_listT;
 302             break;
 303         case REG_NONE:
 304             plvdi->item.pszText = reg_noneT;
 305             break;
 306         default:
 307           {
 308             WCHAR szUnknownFmt[64];
 309             LoadStringW(hInst, IDS_REGISTRY_UNKNOWN_TYPE, szUnknownFmt, COUNT_OF(szUnknownFmt));
 310             wsprintfW(buffer, szUnknownFmt, plvdi->item.lParam);
 311             plvdi->item.pszText = buffer;
 312             break;
 313           }
 314         }
 315         break;
 316     case 2:
 317         plvdi->item.pszText = g_szValueNotSet;
 318         break;
 319     case 3:
 320         plvdi->item.pszText = emptyT;
 321         break;
 322     }
 323 }
 324
 325 static int CALLBACK CompareFunc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
 326 {
 327     LINE_INFO*l, *r;
 328     l = (LINE_INFO*)lParam1;
 329     r = (LINE_INFO*)lParam2;
 330     if (!l->name) return -1;
 331     if (!r->name) return +1;
 332
 333     if (g_columnToSort == ~0U)
 334         g_columnToSort = 0;
 335
 336     if (g_columnToSort == 1)
 337         return g_invertSort ? (int)r->dwValType - (int)l->dwValType : (int)l->dwValType - (int)r->dwValType;
 338     if (g_columnToSort == 2) {
 339         /* FIXME: Sort on value */
 340         return 0;
 341     }
 342     return g_invertSort ? lstrcmpiW(r->name, l->name) : lstrcmpiW(l->name, r->name);
 343 }
 344
 345 HWND StartValueRename(HWND hwndLV)
 346 {
 347     int item;
 348
 349     item = SendMessageW(hwndLV, LVM_GETNEXTITEM, -1, MAKELPARAM(LVNI_FOCUSED | LVNI_SELECTED, 0));
 350     if (item < 1) { /* cannot rename default key */
 351         MessageBeep(MB_ICONHAND);
 352         return 0;
 353     }
 354     return (HWND)SendMessageW(hwndLV, LVM_EDITLABELW, item, 0);
 355 }
 356
 357 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 358 {
 359     switch (LOWORD(wParam)) {
 360         /*    case ID_FILE_OPEN: */
 361         /*        break; */
 362     default:
 363         return FALSE;
 364     }
 365     return TRUE;
 366 }
 367
 368 static LRESULT CALLBACK ListWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 369 {
 370     switch (message) {
 371     case WM_COMMAND:
 372         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 373             return CallWindowProcW(g_orgListWndProc, hWnd, message, wParam, lParam);
 374         }
 375         break;
 376     case WM_NOTIFY_REFLECT:
 377         switch (((LPNMHDR)lParam)->code) {
 378
 379         case LVN_BEGINLABELEDITW:
 380             if (!((NMLVDISPINFOW *)lParam)->item.iItem)
 381                 return 1;
 382             return 0;
 383         case LVN_GETDISPINFOW:
 384             OnGetDispInfo((NMLVDISPINFOW*)lParam);
 385             break;
 386         case LVN_COLUMNCLICK:
 387             if (g_columnToSort == ((LPNMLISTVIEW)lParam)->iSubItem)
 388                 g_invertSort = !g_invertSort;
 389             else {
 390                 g_columnToSort = ((LPNMLISTVIEW)lParam)->iSubItem;
 391                 g_invertSort = FALSE;
 392             }
 393
 394             SendMessageW(hWnd, LVM_SORTITEMS, (WPARAM)hWnd, (LPARAM)CompareFunc);
 395             break;
 396         case LVN_ENDLABELEDITW: {
 397                 LPNMLVDISPINFOW dispInfo = (LPNMLVDISPINFOW)lParam;
 398                 LPWSTR oldName = GetItemText(hWnd, dispInfo->item.iItem);
 399                 LONG ret;
 400                 if (!oldName) return -1; /* cannot rename a default value */
 401                 ret = RenameValue(hWnd, g_currentRootKey, g_currentPath, oldName, dispInfo->item.pszText);
 402                 if (ret)
 403                 {
 404                     RefreshListView(hWnd, g_currentRootKey, g_currentPath, dispInfo->item.pszText);
 405                 }
 406                 HeapFree(GetProcessHeap(), 0, oldName);
 407                 return 0;
 408             }
 409         case NM_RETURN: {
 410             int cnt = SendMessageW(hWnd, LVM_GETNEXTITEM, -1, MAKELPARAM(LVNI_FOCUSED | LVNI_SELECTED, 0));
 411             if (cnt != -1)
 412                 SendMessageW(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 413             }
 414             break;
 415         case NM_DBLCLK: {
 416                 NMITEMACTIVATE* nmitem = (LPNMITEMACTIVATE)lParam;
 417                 LVHITTESTINFO info;
 418
 419                 /* if (nmitem->hdr.hwndFrom != hWnd) break; unnecessary because of WM_NOTIFY_REFLECT */
 420                 /*            if (nmitem->hdr.idFrom != IDW_LISTVIEW) break;  */
 421                 /*            if (nmitem->hdr.code != ???) break;  */
 422 #ifdef _MSC_VER
 423                 switch (nmitem->uKeyFlags) {
 424                 case LVKF_ALT:     /*  The ALT key is pressed.   */
 425                     /* properties dialog box ? */
 426                     break;
 427                 case LVKF_CONTROL: /*  The CTRL key is pressed. */
 428                     /* run dialog box for providing parameters... */
 429                     break;
 430                 case LVKF_SHIFT:   /*  The SHIFT key is pressed.    */
 431                     break;
 432                 }
 433 #endif
 434                 info.pt.x = nmitem->ptAction.x;
 435                 info.pt.y = nmitem->ptAction.y;
 436                 if (SendMessageW(hWnd, LVM_HITTEST, 0, (LPARAM)&info) != -1) {
 437                     LVITEMW item;
 438
 439                     item.state = 0;
 440                     item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 441                     SendMessageW(hWnd, LVM_SETITEMSTATE, (UINT)-1, (LPARAM)&item);
 442
 443                     item.state = LVIS_FOCUSED | LVIS_SELECTED;
 444                     item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 445                     SendMessageW(hWnd, LVM_SETITEMSTATE, info.iItem, (LPARAM)&item);
 446
 447                     SendMessageW(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 448                 }
 449             }
 450             break;
 451
 452         default:
 453             return 0; /* shouldn't call default ! */
 454         }
 455         break;
 456     case WM_CONTEXTMENU: {
 457         int cnt = SendMessageW(hWnd, LVM_GETNEXTITEM, -1, MAKELPARAM(LVNI_SELECTED, 0));
 458         TrackPopupMenu(GetSubMenu(hPopupMenus, cnt == -1 ? PM_NEW : PM_MODIFYVALUE),
 459                        TPM_RIGHTBUTTON, (short)LOWORD(lParam), (short)HIWORD(lParam),
 460                        0, hFrameWnd, NULL);
 461         break;
 462     }
 463     default:
 464         return CallWindowProcW(g_orgListWndProc, hWnd, message, wParam, lParam);
 465     }
 466     return 0;
 467 }
 468
 469
 470 HWND CreateListView(HWND hwndParent, UINT id)
 471 {
 472     RECT rcClient;
 473     HWND hwndLV;
 474     WCHAR ListView[] = {'L','i','s','t',' ','V','i','e','w',0};
 475
 476     /* prepare strings */
 477     LoadStringW(hInst, IDS_REGISTRY_VALUE_NOT_SET, g_szValueNotSet, COUNT_OF(g_szValueNotSet));
 478
 479     /* Get the dimensions of the parent window's client area, and create the list view control.  */
 480     GetClientRect(hwndParent, &rcClient);
 481     hwndLV = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW, ListView,
 482                             WS_VISIBLE | WS_CHILD | WS_TABSTOP | LVS_REPORT | LVS_EDITLABELS,
 483                             0, 0, rcClient.right, rcClient.bottom,
 484                             hwndParent, ULongToHandle(id), hInst, NULL);
 485     if (!hwndLV) return NULL;
 486     SendMessageW(hwndLV, LVM_SETUNICODEFORMAT, TRUE, 0);
 487     SendMessageW(hwndLV, LVM_SETEXTENDEDLISTVIEWSTYLE, 0, LVS_EX_FULLROWSELECT);
 488
 489     /* Initialize the image list */
 490     if (!InitListViewImageList(hwndLV)) goto fail;
 491     if (!CreateListColumns(hwndLV)) goto fail;
 492     g_orgListWndProc = (WNDPROC) SetWindowLongPtrW(hwndLV, GWLP_WNDPROC, (LPARAM)ListWndProc);
 493     return hwndLV;
 494 fail:
 495     DestroyWindow(hwndLV);
 496     return NULL;
 497 }
 498
 499 BOOL RefreshListView(HWND hwndLV, HKEY hKeyRoot, LPCWSTR keyPath, LPCWSTR highlightValue)
 500 {
 501     BOOL result = FALSE;
 502     DWORD max_sub_key_len;
 503     DWORD max_val_name_len, valNameLen;
 504     DWORD max_val_size, valSize;
 505     DWORD val_count, index, valType;
 506     WCHAR* valName = 0;
 507     BYTE* valBuf = 0;
 508     HKEY hKey = 0;
 509     LONG errCode;
 510     INT count, i;
 511     LVITEMW item;
 512
 513     if (!hwndLV) return FALSE;
 514
 515     SendMessageW(hwndLV, WM_SETREDRAW, FALSE, 0);
 516
 517     errCode = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_READ, &hKey);
 518     if (errCode != ERROR_SUCCESS) goto done;
 519
 520     count = SendMessageW(hwndLV, LVM_GETITEMCOUNT, 0, 0);
 521     for (i = 0; i < count; i++) {
 522         item.mask = LVIF_PARAM;
 523         item.iItem = i;
 524         SendMessageW( hwndLV, LVM_GETITEMW, 0, (LPARAM)&item );
 525         HeapFree(GetProcessHeap(), 0, ((LINE_INFO*)item.lParam)->name);
 526         HeapFree(GetProcessHeap(), 0, (void*)item.lParam);
 527     }
 528     g_columnToSort = ~0U;
 529     SendMessageW( hwndLV, LVM_DELETEALLITEMS, 0, 0L );
 530
 531     /* get size information and resize the buffers if necessary */
 532     errCode = RegQueryInfoKeyW(hKey, NULL, NULL, NULL, NULL, &max_sub_key_len, NULL,
 533                               &val_count, &max_val_name_len, &max_val_size, NULL, NULL);
 534     if (errCode != ERROR_SUCCESS) goto done;
 535
 536     /* account for the terminator char */
 537     max_val_name_len++;
 538     max_val_size++;
 539
 540     valName = HeapAlloc(GetProcessHeap(), 0, max_val_name_len * sizeof(WCHAR));
 541     if (!valName)
 542         goto done;
 543     valBuf = HeapAlloc(GetProcessHeap(), 0, max_val_size);
 544     if (!valBuf)
 545         goto done;
 546
 547     if (RegQueryValueExW(hKey, NULL, NULL, &valType, valBuf, &valSize) == ERROR_FILE_NOT_FOUND) {
 548         AddEntryToList(hwndLV, NULL, REG_SZ, NULL, 0, !highlightValue);
 549     }
 550     for(index = 0; index < val_count; index++) {
 551         BOOL bSelected = (valName == highlightValue); /* NOT a bug, we check for double NULL here */
 552         valNameLen = max_val_name_len;
 553         valSize = max_val_size;
 554         valType = 0;
 555         errCode = RegEnumValueW(hKey, index, valName, &valNameLen, NULL, &valType, valBuf, &valSize);
 556         if (errCode != ERROR_SUCCESS) goto done;
 557         valBuf[valSize] = 0;
 558         if (highlightValue && !lstrcmpW(valName, highlightValue))
 559             bSelected = TRUE;
 560         AddEntryToList(hwndLV, valName[0] ? valName : NULL, valType, valBuf, valSize, bSelected);
 561     }
 562     SendMessageW(hwndLV, LVM_SORTITEMS, (WPARAM)hwndLV, (LPARAM)CompareFunc);
 563
 564     g_currentRootKey = hKeyRoot;
 565     if (keyPath != g_currentPath) {
 566         HeapFree(GetProcessHeap(), 0, g_currentPath);
 567         g_currentPath = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(keyPath) + 1) * sizeof(WCHAR));
 568         if (!g_currentPath) goto done;
 569         lstrcpyW(g_currentPath, keyPath);
 570     }
 571
 572     result = TRUE;
 573
 574 done:
 575     HeapFree(GetProcessHeap(), 0, valBuf);
 576     HeapFree(GetProcessHeap(), 0, valName);
 577     SendMessageW(hwndLV, WM_SETREDRAW, TRUE, 0);
 578     if (hKey) RegCloseKey(hKey);
 579
 580     return result;
 581 }