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 && l->dwValType != r->dwValType)
 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     }
 341     return g_invertSort ? lstrcmpiW(r->name, l->name) : lstrcmpiW(l->name, r->name);
 342 }
 343
 344 HWND StartValueRename(HWND hwndLV)
 345 {
 346     int item;
 347
 348     item = SendMessageW(hwndLV, LVM_GETNEXTITEM, -1, MAKELPARAM(LVNI_FOCUSED | LVNI_SELECTED, 0));
 349     if (item < 1) { /* cannot rename default key */
 350         MessageBeep(MB_ICONHAND);
 351         return 0;
 352     }
 353     return (HWND)SendMessageW(hwndLV, LVM_EDITLABELW, item, 0);
 354 }
 355
 356 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 357 {
 358     switch (LOWORD(wParam)) {
 359         /*    case ID_FILE_OPEN: */
 360         /*        break; */
 361     default:
 362         return FALSE;
 363     }
 364     return TRUE;
 365 }
 366
 367 static LRESULT CALLBACK ListWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 368 {
 369     switch (message) {
 370     case WM_COMMAND:
 371         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 372             return CallWindowProcW(g_orgListWndProc, hWnd, message, wParam, lParam);
 373         }
 374         break;
 375     case WM_NOTIFY_REFLECT:
 376         switch (((LPNMHDR)lParam)->code) {
 377
 378         case LVN_BEGINLABELEDITW:
 379             if (!((NMLVDISPINFOW *)lParam)->item.iItem)
 380                 return 1;
 381             return 0;
 382         case LVN_GETDISPINFOW:
 383             OnGetDispInfo((NMLVDISPINFOW*)lParam);
 384             break;
 385         case LVN_COLUMNCLICK:
 386             if (g_columnToSort == ((LPNMLISTVIEW)lParam)->iSubItem)
 387                 g_invertSort = !g_invertSort;
 388             else {
 389                 g_columnToSort = ((LPNMLISTVIEW)lParam)->iSubItem;
 390                 g_invertSort = FALSE;
 391             }
 392
 393             SendMessageW(hWnd, LVM_SORTITEMS, (WPARAM)hWnd, (LPARAM)CompareFunc);
 394             break;
 395         case LVN_ENDLABELEDITW: {
 396                 LPNMLVDISPINFOW dispInfo = (LPNMLVDISPINFOW)lParam;
 397                 LPWSTR oldName = GetItemText(hWnd, dispInfo->item.iItem);
 398                 LONG ret;
 399                 if (!oldName) return -1; /* cannot rename a default value */
 400                 ret = RenameValue(hWnd, g_currentRootKey, g_currentPath, oldName, dispInfo->item.pszText);
 401                 if (ret)
 402                 {
 403                     RefreshListView(hWnd, g_currentRootKey, g_currentPath, dispInfo->item.pszText);
 404                 }
 405                 HeapFree(GetProcessHeap(), 0, oldName);
 406                 return 0;
 407             }
 408         case NM_RETURN: {
 409             int cnt = SendMessageW(hWnd, LVM_GETNEXTITEM, -1, MAKELPARAM(LVNI_FOCUSED | LVNI_SELECTED, 0));
 410             if (cnt != -1)
 411                 SendMessageW(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 412             }
 413             break;
 414         case NM_DBLCLK: {
 415                 NMITEMACTIVATE* nmitem = (LPNMITEMACTIVATE)lParam;
 416                 LVHITTESTINFO info;
 417
 418                 /* if (nmitem->hdr.hwndFrom != hWnd) break; unnecessary because of WM_NOTIFY_REFLECT */
 419                 /*            if (nmitem->hdr.idFrom != IDW_LISTVIEW) break;  */
 420                 /*            if (nmitem->hdr.code != ???) break;  */
 421 #ifdef _MSC_VER
 422                 switch (nmitem->uKeyFlags) {
 423                 case LVKF_ALT:     /*  The ALT key is pressed.   */
 424                     /* properties dialog box ? */
 425                     break;
 426                 case LVKF_CONTROL: /*  The CTRL key is pressed. */
 427                     /* run dialog box for providing parameters... */
 428                     break;
 429                 case LVKF_SHIFT:   /*  The SHIFT key is pressed.    */
 430                     break;
 431                 }
 432 #endif
 433                 info.pt.x = nmitem->ptAction.x;
 434                 info.pt.y = nmitem->ptAction.y;
 435                 if (SendMessageW(hWnd, LVM_HITTEST, 0, (LPARAM)&info) != -1) {
 436                     LVITEMW item;
 437
 438                     item.state = 0;
 439                     item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 440                     SendMessageW(hWnd, LVM_SETITEMSTATE, (UINT)-1, (LPARAM)&item);
 441
 442                     item.state = LVIS_FOCUSED | LVIS_SELECTED;
 443                     item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 444                     SendMessageW(hWnd, LVM_SETITEMSTATE, info.iItem, (LPARAM)&item);
 445
 446                     SendMessageW(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 447                 }
 448             }
 449             break;
 450
 451         default:
 452             return 0; /* shouldn't call default ! */
 453         }
 454         break;
 455     case WM_CONTEXTMENU: {
 456         int cnt = SendMessageW(hWnd, LVM_GETNEXTITEM, -1, MAKELPARAM(LVNI_SELECTED, 0));
 457         TrackPopupMenu(GetSubMenu(hPopupMenus, cnt == -1 ? PM_NEW : PM_MODIFYVALUE),
 458                        TPM_RIGHTBUTTON, (short)LOWORD(lParam), (short)HIWORD(lParam),
 459                        0, hFrameWnd, NULL);
 460         break;
 461     }
 462     default:
 463         return CallWindowProcW(g_orgListWndProc, hWnd, message, wParam, lParam);
 464     }
 465     return 0;
 466 }
 467
 468
 469 HWND CreateListView(HWND hwndParent, UINT id)
 470 {
 471     RECT rcClient;
 472     HWND hwndLV;
 473     WCHAR ListView[] = {'L','i','s','t',' ','V','i','e','w',0};
 474
 475     /* prepare strings */
 476     LoadStringW(hInst, IDS_REGISTRY_VALUE_NOT_SET, g_szValueNotSet, COUNT_OF(g_szValueNotSet));
 477
 478     /* Get the dimensions of the parent window's client area, and create the list view control.  */
 479     GetClientRect(hwndParent, &rcClient);
 480     hwndLV = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW, ListView,
 481                             WS_VISIBLE | WS_CHILD | WS_TABSTOP | LVS_REPORT | LVS_EDITLABELS,
 482                             0, 0, rcClient.right, rcClient.bottom,
 483                             hwndParent, ULongToHandle(id), hInst, NULL);
 484     if (!hwndLV) return NULL;
 485     SendMessageW(hwndLV, LVM_SETUNICODEFORMAT, TRUE, 0);
 486     SendMessageW(hwndLV, LVM_SETEXTENDEDLISTVIEWSTYLE, 0, LVS_EX_FULLROWSELECT);
 487
 488     /* Initialize the image list */
 489     if (!InitListViewImageList(hwndLV)) goto fail;
 490     if (!CreateListColumns(hwndLV)) goto fail;
 491     g_orgListWndProc = (WNDPROC) SetWindowLongPtrW(hwndLV, GWLP_WNDPROC, (LPARAM)ListWndProc);
 492     return hwndLV;
 493 fail:
 494     DestroyWindow(hwndLV);
 495     return NULL;
 496 }
 497
 498 BOOL RefreshListView(HWND hwndLV, HKEY hKeyRoot, LPCWSTR keyPath, LPCWSTR highlightValue)
 499 {
 500     BOOL result = FALSE;
 501     DWORD max_sub_key_len;
 502     DWORD max_val_name_len, valNameLen;
 503     DWORD max_val_size, valSize;
 504     DWORD val_count, index, valType;
 505     WCHAR* valName = 0;
 506     BYTE* valBuf = 0;
 507     HKEY hKey = 0;
 508     LONG errCode;
 509     INT count, i;
 510     LVITEMW item;
 511
 512     if (!hwndLV) return FALSE;
 513
 514     SendMessageW(hwndLV, WM_SETREDRAW, FALSE, 0);
 515
 516     errCode = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_READ, &hKey);
 517     if (errCode != ERROR_SUCCESS) goto done;
 518
 519     count = SendMessageW(hwndLV, LVM_GETITEMCOUNT, 0, 0);
 520     for (i = 0; i < count; i++) {
 521         item.mask = LVIF_PARAM;
 522         item.iItem = i;
 523         SendMessageW( hwndLV, LVM_GETITEMW, 0, (LPARAM)&item );
 524         HeapFree(GetProcessHeap(), 0, ((LINE_INFO*)item.lParam)->name);
 525         HeapFree(GetProcessHeap(), 0, (void*)item.lParam);
 526     }
 527     g_columnToSort = ~0U;
 528     SendMessageW( hwndLV, LVM_DELETEALLITEMS, 0, 0L );
 529
 530     /* get size information and resize the buffers if necessary */
 531     errCode = RegQueryInfoKeyW(hKey, NULL, NULL, NULL, NULL, &max_sub_key_len, NULL,
 532                               &val_count, &max_val_name_len, &max_val_size, NULL, NULL);
 533     if (errCode != ERROR_SUCCESS) goto done;
 534
 535     /* account for the terminator char */
 536     max_val_name_len++;
 537     max_val_size++;
 538
 539     valName = HeapAlloc(GetProcessHeap(), 0, max_val_name_len * sizeof(WCHAR));
 540     if (!valName)
 541         goto done;
 542     valBuf = HeapAlloc(GetProcessHeap(), 0, max_val_size);
 543     if (!valBuf)
 544         goto done;
 545
 546     if (RegQueryValueExW(hKey, NULL, NULL, &valType, valBuf, &valSize) == ERROR_FILE_NOT_FOUND) {
 547         AddEntryToList(hwndLV, NULL, REG_SZ, NULL, 0, !highlightValue);
 548     }
 549     for(index = 0; index < val_count; index++) {
 550         BOOL bSelected = (valName == highlightValue); /* NOT a bug, we check for double NULL here */
 551         valNameLen = max_val_name_len;
 552         valSize = max_val_size;
 553         valType = 0;
 554         errCode = RegEnumValueW(hKey, index, valName, &valNameLen, NULL, &valType, valBuf, &valSize);
 555         if (errCode != ERROR_SUCCESS) goto done;
 556         valBuf[valSize] = 0;
 557         if (highlightValue && !lstrcmpW(valName, highlightValue))
 558             bSelected = TRUE;
 559         AddEntryToList(hwndLV, valName[0] ? valName : NULL, valType, valBuf, valSize, bSelected);
 560     }
 561     SendMessageW(hwndLV, LVM_SORTITEMS, (WPARAM)hwndLV, (LPARAM)CompareFunc);
 562
 563     g_currentRootKey = hKeyRoot;
 564     if (keyPath != g_currentPath) {
 565         HeapFree(GetProcessHeap(), 0, g_currentPath);
 566         g_currentPath = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(keyPath) + 1) * sizeof(WCHAR));
 567         if (!g_currentPath) goto done;
 568         lstrcpyW(g_currentPath, keyPath);
 569     }
 570
 571     result = TRUE;
 572
 573 done:
 574     HeapFree(GetProcessHeap(), 0, valBuf);
 575     HeapFree(GetProcessHeap(), 0, valName);
 576     SendMessageW(hwndLV, WM_SETREDRAW, TRUE, 0);
 577     if (hKey) RegCloseKey(hKey);
 578
 579     return result;
 580 }