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 <winternl.h>
  24 #include <commctrl.h>
  25 #include <stdlib.h>
  26 #include <stdio.h>
  27
  28 #include "main.h"
  29
  30 #include "wine/unicode.h"
  31 static INT Image_String;
  32 static INT Image_Binary;
  33
  34 typedef struct tagLINE_INFO
  35 {
  36     DWORD dwValType;
  37     LPWSTR name;
  38     void* val;
  39     size_t val_len;
  40 } LINE_INFO;
  41
  42 /*******************************************************************************
  43  * Global and Local Variables:
  44  */
  45
  46 static WNDPROC g_orgListWndProc;
  47 static DWORD g_columnToSort = ~0U;
  48 static BOOL  g_invertSort = FALSE;
  49 static LPWSTR g_valueName;
  50 static LPWSTR g_currentPath;
  51 static HKEY g_currentRootKey;
  52 static WCHAR g_szValueNotSet[64];
  53
  54 #define MAX_LIST_COLUMNS (IDS_LIST_COLUMN_LAST - IDS_LIST_COLUMN_FIRST + 1)
  55 static int default_column_widths[MAX_LIST_COLUMNS] = { 200, 175, 400 };
  56 static int column_alignment[MAX_LIST_COLUMNS] = { LVCFMT_LEFT, LVCFMT_LEFT, LVCFMT_LEFT };
  57
  58 LPWSTR GetItemText(HWND hwndLV, UINT item)
  59 {
  60     LPWSTR newStr, curStr;
  61     unsigned int maxLen = 128;
  62     if (item == 0) return NULL; /* first item is ALWAYS a default */
  63
  64     curStr = HeapAlloc(GetProcessHeap(), 0, maxLen * sizeof(WCHAR));
  65     if (!curStr) return NULL;
  66     do {
  67         ListView_GetItemTextW(hwndLV, item, 0, curStr, maxLen);
  68         if (lstrlenW(curStr) < maxLen - 1) return curStr;
  69         maxLen *= 2;
  70         newStr = HeapReAlloc(GetProcessHeap(), 0, curStr, maxLen * sizeof(WCHAR));
  71         if (!newStr) break;
  72         curStr = newStr;
  73     } while (TRUE);
  74     HeapFree(GetProcessHeap(), 0, curStr);
  75     return NULL;
  76 }
  77
  78 LPCWSTR GetValueName(HWND hwndLV)
  79 {
  80     INT item;
  81
  82     if (g_valueName != LPSTR_TEXTCALLBACKW)
  83         HeapFree(GetProcessHeap(), 0,  g_valueName);
  84     g_valueName = NULL;
  85
  86     item = SendMessageW(hwndLV, LVM_GETNEXTITEM, -1, MAKELPARAM(LVNI_FOCUSED, 0));
  87     if (item == -1) return NULL;
  88
  89     g_valueName = GetItemText(hwndLV, item);
  90
  91     return g_valueName;
  92 }
  93
  94 /* convert '\0' separated string list into ',' separated string list */
  95 static void MakeMULTISZDisplayable(LPWSTR multi)
  96 {
  97     do
  98     {
  99         for (; *multi; multi++)
 100             ;
 101         if (*(multi+1))
 102         {
 103             *multi = ',';
 104             multi++;
 105         }
 106     } while (*multi);
 107 }
 108
 109 /*******************************************************************************
 110  * Local module support methods
 111  */
 112 void format_value_data(HWND hwndLV, int index, DWORD type, void *data, DWORD size)
 113 {
 114     switch (type)
 115     {
 116         case REG_SZ:
 117         case REG_EXPAND_SZ:
 118             ListView_SetItemTextW(hwndLV, index, 2, data ? data : g_szValueNotSet);
 119             break;
 120         case REG_DWORD:
 121         case REG_DWORD_BIG_ENDIAN:
 122         {
 123             DWORD value = *(DWORD *)data;
 124             WCHAR buf[64];
 125             WCHAR format[] = {'0','x','%','0','8','x',' ','(','%','u',')',0};
 126             if (type == REG_DWORD_BIG_ENDIAN)
 127                 value = RtlUlongByteSwap(value);
 128             wsprintfW(buf, format, value, value);
 129             ListView_SetItemTextW(hwndLV, index, 2, buf);
 130             break;
 131         }
 132         case REG_MULTI_SZ:
 133             MakeMULTISZDisplayable(data);
 134             ListView_SetItemTextW(hwndLV, index, 2, data);
 135             break;
 136         case REG_BINARY:
 137         case REG_NONE:
 138         default:
 139         {
 140             unsigned int i;
 141             BYTE *pData = data;
 142             WCHAR *strBinary = HeapAlloc(GetProcessHeap(), 0, size * sizeof(WCHAR) * 3 + sizeof(WCHAR));
 143             WCHAR format[] = {'%','0','2','X',' ',0};
 144             for (i = 0; i < size; i++)
 145                 wsprintfW( strBinary + i*3, format, pData[i] );
 146             strBinary[size * 3] = 0;
 147             ListView_SetItemTextW(hwndLV, index, 2, strBinary);
 148             HeapFree(GetProcessHeap(), 0, strBinary);
 149             break;
 150         }
 151     }
 152 }
 153
 154 int AddEntryToList(HWND hwndLV, WCHAR *Name, DWORD dwValType, void *ValBuf, DWORD dwCount, int pos)
 155 {
 156     LINE_INFO* linfo;
 157     LVITEMW item;
 158     int index;
 159
 160     linfo = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINE_INFO) + dwCount);
 161     linfo->dwValType = dwValType;
 162     linfo->val_len = dwCount;
 163     CopyMemory(&linfo[1], ValBuf, dwCount);
 164
 165     if (Name)
 166     {
 167         linfo->name = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(Name) + 1) * sizeof(WCHAR));
 168         lstrcpyW(linfo->name, Name);
 169     } else
 170     {
 171         linfo->name = NULL;
 172     }
 173
 174     item.mask = LVIF_TEXT | LVIF_PARAM | LVIF_STATE | LVIF_IMAGE;
 175     item.iItem = (pos == -1) ? SendMessageW(hwndLV, LVM_GETITEMCOUNT, 0, 0) : pos;
 176     item.iSubItem = 0;
 177     item.state = 0;
 178     item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 179     item.pszText = Name ? Name : LPSTR_TEXTCALLBACKW;
 180     item.cchTextMax = Name ? lstrlenW(item.pszText) : 0;
 181
 182     switch (dwValType)
 183     {
 184     case REG_SZ:
 185     case REG_EXPAND_SZ:
 186     case REG_MULTI_SZ:
 187         item.iImage = Image_String;
 188         break;
 189     default:
 190         item.iImage = Image_Binary;
 191         break;
 192     }
 193     item.lParam = (LPARAM)linfo;
 194
 195 #if (_WIN32_IE >= 0x0300)
 196     item.iIndent = 0;
 197 #endif
 198
 199     if ((index = ListView_InsertItemW(hwndLV, &item)) != -1)
 200         format_value_data(hwndLV, index, dwValType, ValBuf, dwCount);
 201     return index;
 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     {
 279         DWORD data_type = ((LINE_INFO *)plvdi->item.lParam)->dwValType;
 280
 281         switch (data_type) {
 282         case REG_SZ:
 283             plvdi->item.pszText = reg_szT;
 284             break;
 285         case REG_EXPAND_SZ:
 286             plvdi->item.pszText = reg_expand_szT;
 287             break;
 288         case REG_BINARY:
 289             plvdi->item.pszText = reg_binaryT;
 290             break;
 291         case REG_DWORD:
 292             plvdi->item.pszText = reg_dwordT;
 293             break;
 294         case REG_DWORD_BIG_ENDIAN:
 295             plvdi->item.pszText = reg_dword_big_endianT;
 296             break;
 297         case REG_MULTI_SZ:
 298             plvdi->item.pszText = reg_multi_szT;
 299             break;
 300         case REG_LINK:
 301             plvdi->item.pszText = reg_linkT;
 302             break;
 303         case REG_RESOURCE_LIST:
 304             plvdi->item.pszText = reg_resource_listT;
 305             break;
 306         case REG_NONE:
 307             plvdi->item.pszText = reg_noneT;
 308             break;
 309         default:
 310           {
 311             WCHAR fmt[] = {'0','x','%','x',0};
 312             wsprintfW(buffer, fmt, data_type);
 313             plvdi->item.pszText = buffer;
 314             break;
 315           }
 316         }
 317         break;
 318     }
 319     case 2:
 320         plvdi->item.pszText = g_szValueNotSet;
 321         break;
 322     case 3:
 323         plvdi->item.pszText = emptyT;
 324         break;
 325     }
 326 }
 327
 328 static int CALLBACK CompareFunc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
 329 {
 330     LINE_INFO*l, *r;
 331     l = (LINE_INFO*)lParam1;
 332     r = (LINE_INFO*)lParam2;
 333     if (!l->name) return -1;
 334     if (!r->name) return +1;
 335
 336     if (g_columnToSort == ~0U)
 337         g_columnToSort = 0;
 338
 339     if (g_columnToSort == 1)
 340         return g_invertSort ? (int)r->dwValType - (int)l->dwValType : (int)l->dwValType - (int)r->dwValType;
 341     if (g_columnToSort == 2) {
 342         /* FIXME: Sort on value */
 343         return 0;
 344     }
 345     return g_invertSort ? lstrcmpiW(r->name, l->name) : lstrcmpiW(l->name, r->name);
 346 }
 347
 348 HWND StartValueRename(HWND hwndLV)
 349 {
 350     int item;
 351
 352     item = SendMessageW(hwndLV, LVM_GETNEXTITEM, -1, MAKELPARAM(LVNI_FOCUSED | LVNI_SELECTED, 0));
 353     if (item < 1) { /* cannot rename default key */
 354         MessageBeep(MB_ICONHAND);
 355         return 0;
 356     }
 357     return (HWND)SendMessageW(hwndLV, LVM_EDITLABELW, item, 0);
 358 }
 359
 360 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 361 {
 362     switch (LOWORD(wParam)) {
 363         /*    case ID_FILE_OPEN: */
 364         /*        break; */
 365     default:
 366         return FALSE;
 367     }
 368     return TRUE;
 369 }
 370
 371 static LRESULT CALLBACK ListWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 372 {
 373     switch (message) {
 374     case WM_COMMAND:
 375         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 376             return CallWindowProcW(g_orgListWndProc, hWnd, message, wParam, lParam);
 377         }
 378         break;
 379     case WM_NOTIFY_REFLECT:
 380         switch (((LPNMHDR)lParam)->code) {
 381
 382         case LVN_BEGINLABELEDITW:
 383             if (!((NMLVDISPINFOW *)lParam)->item.iItem)
 384                 return 1;
 385             return 0;
 386         case LVN_GETDISPINFOW:
 387             OnGetDispInfo((NMLVDISPINFOW*)lParam);
 388             break;
 389         case LVN_COLUMNCLICK:
 390             if (g_columnToSort == ((LPNMLISTVIEW)lParam)->iSubItem)
 391                 g_invertSort = !g_invertSort;
 392             else {
 393                 g_columnToSort = ((LPNMLISTVIEW)lParam)->iSubItem;
 394                 g_invertSort = FALSE;
 395             }
 396
 397             SendMessageW(hWnd, LVM_SORTITEMS, (WPARAM)hWnd, (LPARAM)CompareFunc);
 398             break;
 399         case LVN_ENDLABELEDITW: {
 400                 LPNMLVDISPINFOW dispInfo = (LPNMLVDISPINFOW)lParam;
 401                 LPWSTR oldName = GetItemText(hWnd, dispInfo->item.iItem);
 402                 LONG ret;
 403
 404                 if (!oldName) return -1; /* cannot rename a default value */
 405                 ret = RenameValue(hWnd, g_currentRootKey, g_currentPath, oldName, dispInfo->item.pszText);
 406                 if (ret)
 407                 {
 408                     dispInfo->item.iSubItem = 0;
 409                     SendMessageW(hWnd, LVM_SETITEMTEXTW, dispInfo->item.iItem, (LPARAM)&dispInfo->item);
 410                 }
 411                 HeapFree(GetProcessHeap(), 0, oldName);
 412                 return 0;
 413             }
 414         case NM_RETURN: {
 415             int cnt = SendMessageW(hWnd, LVM_GETNEXTITEM, -1, MAKELPARAM(LVNI_FOCUSED | LVNI_SELECTED, 0));
 416             if (cnt != -1)
 417                 SendMessageW(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 418             }
 419             break;
 420         case NM_SETFOCUS:
 421             g_pChildWnd->nFocusPanel = 1;
 422             break;
 423         case NM_DBLCLK: {
 424                 NMITEMACTIVATE* nmitem = (LPNMITEMACTIVATE)lParam;
 425                 LVHITTESTINFO info;
 426
 427                 /* if (nmitem->hdr.hwndFrom != hWnd) break; unnecessary because of WM_NOTIFY_REFLECT */
 428                 /*            if (nmitem->hdr.idFrom != IDW_LISTVIEW) break;  */
 429                 /*            if (nmitem->hdr.code != ???) break;  */
 430 #ifdef _MSC_VER
 431                 switch (nmitem->uKeyFlags) {
 432                 case LVKF_ALT:     /*  The ALT key is pressed.   */
 433                     /* properties dialog box ? */
 434                     break;
 435                 case LVKF_CONTROL: /*  The CTRL key is pressed. */
 436                     /* run dialog box for providing parameters... */
 437                     break;
 438                 case LVKF_SHIFT:   /*  The SHIFT key is pressed.    */
 439                     break;
 440                 }
 441 #endif
 442                 info.pt.x = nmitem->ptAction.x;
 443                 info.pt.y = nmitem->ptAction.y;
 444                 if (SendMessageW(hWnd, LVM_HITTEST, 0, (LPARAM)&info) != -1) {
 445                     LVITEMW item;
 446
 447                     item.state = 0;
 448                     item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 449                     SendMessageW(hWnd, LVM_SETITEMSTATE, (UINT)-1, (LPARAM)&item);
 450
 451                     item.state = LVIS_FOCUSED | LVIS_SELECTED;
 452                     item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 453                     SendMessageW(hWnd, LVM_SETITEMSTATE, info.iItem, (LPARAM)&item);
 454
 455                     SendMessageW(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 456                 }
 457             }
 458             break;
 459
 460         default:
 461             return 0; /* shouldn't call default ! */
 462         }
 463         break;
 464     case WM_CONTEXTMENU: {
 465         int cnt = SendMessageW(hWnd, LVM_GETNEXTITEM, -1, MAKELPARAM(LVNI_SELECTED, 0));
 466         TrackPopupMenu(GetSubMenu(hPopupMenus, cnt == -1 ? PM_NEW_VALUE : PM_MODIFY_VALUE),
 467                        TPM_RIGHTBUTTON, (short)LOWORD(lParam), (short)HIWORD(lParam),
 468                        0, hFrameWnd, NULL);
 469         break;
 470     }
 471     default:
 472         return CallWindowProcW(g_orgListWndProc, hWnd, message, wParam, lParam);
 473     }
 474     return 0;
 475 }
 476
 477
 478 HWND CreateListView(HWND hwndParent, UINT id)
 479 {
 480     RECT rcClient;
 481     HWND hwndLV;
 482     WCHAR ListView[] = {'L','i','s','t',' ','V','i','e','w',0};
 483
 484     /* prepare strings */
 485     LoadStringW(hInst, IDS_REGISTRY_VALUE_NOT_SET, g_szValueNotSet, COUNT_OF(g_szValueNotSet));
 486
 487     /* Get the dimensions of the parent window's client area, and create the list view control.  */
 488     GetClientRect(hwndParent, &rcClient);
 489     hwndLV = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW, ListView,
 490                             WS_VISIBLE | WS_CHILD | WS_TABSTOP | LVS_REPORT | LVS_EDITLABELS,
 491                             0, 0, rcClient.right, rcClient.bottom,
 492                             hwndParent, ULongToHandle(id), hInst, NULL);
 493     if (!hwndLV) return NULL;
 494     SendMessageW(hwndLV, LVM_SETUNICODEFORMAT, TRUE, 0);
 495     SendMessageW(hwndLV, LVM_SETEXTENDEDLISTVIEWSTYLE, 0, LVS_EX_FULLROWSELECT);
 496
 497     /* Initialize the image list */
 498     if (!InitListViewImageList(hwndLV)) goto fail;
 499     if (!CreateListColumns(hwndLV)) goto fail;
 500     g_orgListWndProc = (WNDPROC) SetWindowLongPtrW(hwndLV, GWLP_WNDPROC, (LPARAM)ListWndProc);
 501     return hwndLV;
 502 fail:
 503     DestroyWindow(hwndLV);
 504     return NULL;
 505 }
 506
 507 BOOL RefreshListView(HWND hwndLV, HKEY hKeyRoot, LPCWSTR keyPath, LPCWSTR highlightValue)
 508 {
 509     BOOL result = FALSE;
 510     DWORD max_sub_key_len;
 511     DWORD max_val_name_len, valNameLen;
 512     DWORD max_val_size, valSize;
 513     DWORD val_count, index, valType;
 514     WCHAR* valName = 0;
 515     BYTE* valBuf = 0;
 516     HKEY hKey = 0;
 517     LONG errCode;
 518     INT count, i;
 519     LVITEMW item;
 520
 521     if (!hwndLV) return FALSE;
 522
 523     SendMessageW(hwndLV, WM_SETREDRAW, FALSE, 0);
 524
 525     errCode = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_READ, &hKey);
 526     if (errCode != ERROR_SUCCESS) goto done;
 527
 528     count = SendMessageW(hwndLV, LVM_GETITEMCOUNT, 0, 0);
 529     for (i = 0; i < count; i++) {
 530         item.mask = LVIF_PARAM;
 531         item.iItem = i;
 532         SendMessageW( hwndLV, LVM_GETITEMW, 0, (LPARAM)&item );
 533         HeapFree(GetProcessHeap(), 0, ((LINE_INFO*)item.lParam)->name);
 534         HeapFree(GetProcessHeap(), 0, (void*)item.lParam);
 535     }
 536     g_columnToSort = ~0U;
 537     SendMessageW( hwndLV, LVM_DELETEALLITEMS, 0, 0L );
 538
 539     /* get size information and resize the buffers if necessary */
 540     errCode = RegQueryInfoKeyW(hKey, NULL, NULL, NULL, NULL, &max_sub_key_len, NULL,
 541                               &val_count, &max_val_name_len, &max_val_size, NULL, NULL);
 542     if (errCode != ERROR_SUCCESS) goto done;
 543
 544     /* account for the terminator char */
 545     max_val_name_len++;
 546     max_val_size++;
 547
 548     valName = HeapAlloc(GetProcessHeap(), 0, max_val_name_len * sizeof(WCHAR));
 549     if (!valName)
 550         goto done;
 551     valBuf = HeapAlloc(GetProcessHeap(), 0, max_val_size);
 552     if (!valBuf)
 553         goto done;
 554
 555     valSize = max_val_size;
 556     if (RegQueryValueExW(hKey, NULL, NULL, &valType, valBuf, &valSize) == ERROR_FILE_NOT_FOUND) {
 557         AddEntryToList(hwndLV, NULL, REG_SZ, NULL, 0, -1);
 558     }
 559     for(index = 0; index < val_count; index++) {
 560         valNameLen = max_val_name_len;
 561         valSize = max_val_size;
 562         valType = 0;
 563         errCode = RegEnumValueW(hKey, index, valName, &valNameLen, NULL, &valType, valBuf, &valSize);
 564         if (errCode != ERROR_SUCCESS) goto done;
 565         valBuf[valSize] = 0;
 566         AddEntryToList(hwndLV, valName[0] ? valName : NULL, valType, valBuf, valSize, -1);
 567     }
 568
 569     memset(&item, 0, sizeof(item));
 570     if (!highlightValue)
 571     {
 572         item.state = item.stateMask = LVIS_FOCUSED;
 573         SendMessageW(hwndLV, LVM_SETITEMSTATE, 0, (LPARAM)&item);
 574     }
 575
 576     SendMessageW(hwndLV, LVM_SORTITEMS, (WPARAM)hwndLV, (LPARAM)CompareFunc);
 577
 578     g_currentRootKey = hKeyRoot;
 579     if (keyPath != g_currentPath) {
 580         HeapFree(GetProcessHeap(), 0, g_currentPath);
 581         g_currentPath = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(keyPath) + 1) * sizeof(WCHAR));
 582         if (!g_currentPath) goto done;
 583         lstrcpyW(g_currentPath, keyPath);
 584     }
 585
 586     result = TRUE;
 587
 588 done:
 589     HeapFree(GetProcessHeap(), 0, valBuf);
 590     HeapFree(GetProcessHeap(), 0, valName);
 591     SendMessageW(hwndLV, WM_SETREDRAW, TRUE, 0);
 592     if (hKey) RegCloseKey(hKey);
 593
 594     return result;
 595 }