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
  62     curStr = HeapAlloc(GetProcessHeap(), 0, maxLen * sizeof(WCHAR));
  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_GetItemTextW(hwndLV, item, 0, curStr, maxLen * sizeof(WCHAR));
  70         if (lstrlenW(curStr) < maxLen - 1) return curStr;
  71         newStr = HeapReAlloc(GetProcessHeap(), 0, curStr, maxLen * 2 * sizeof(WCHAR));
  72         if (!newStr) break;
  73         curStr = newStr;
  74         maxLen *= 2;
  75     } while (TRUE);
  76     HeapFree(GetProcessHeap(), 0, curStr);
  77     return NULL;
  78 }
  79
  80 LPCWSTR GetValueName(HWND hwndLV)
  81 {
  82     INT item;
  83
  84     if (g_valueName != LPSTR_TEXTCALLBACKW)
  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 = GetItemText(hwndLV, item);
  92
  93     return g_valueName;
  94 }
  95
  96 /* convert '\0' separated string list into ',' separated string list */
  97 static void MakeMULTISZDisplayable(LPWSTR 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, LPWSTR Name, DWORD dwValType,
 115     void* ValBuf, DWORD dwCount, BOOL bHighlight)
 116 {
 117     LINE_INFO* linfo;
 118     LVITEMW 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     CopyMemory(&linfo[1], ValBuf, dwCount);
 125
 126     if (Name)
 127     {
 128         linfo->name = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(Name) + 1) * sizeof(WCHAR));
 129         lstrcpyW(linfo->name, Name);
 130     } else
 131     {
 132         linfo->name = NULL;
 133     }
 134
 135     item.mask = LVIF_TEXT | LVIF_PARAM | LVIF_STATE | LVIF_IMAGE;
 136     item.iItem = ListView_GetItemCount(hwndLV);/*idx;  */
 137     item.iSubItem = 0;
 138     item.state = 0;
 139     item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 140     item.pszText = Name ? Name : LPSTR_TEXTCALLBACKW;
 141     item.cchTextMax = Name ? lstrlenW(item.pszText) : 0;
 142     if (bHighlight) {
 143         item.stateMask = item.state = LVIS_FOCUSED | LVIS_SELECTED;
 144     }
 145     switch (dwValType)
 146     {
 147     case REG_SZ:
 148     case REG_EXPAND_SZ:
 149     case REG_MULTI_SZ:
 150         item.iImage = Image_String;
 151         break;
 152     default:
 153         item.iImage = Image_Binary;
 154         break;
 155     }
 156     item.lParam = (LPARAM)linfo;
 157
 158 #if (_WIN32_IE >= 0x0300)
 159     item.iIndent = 0;
 160 #endif
 161
 162     index = ListView_InsertItemW(hwndLV, &item);
 163     if (index != -1) {
 164         switch (dwValType) {
 165         case REG_SZ:
 166         case REG_EXPAND_SZ:
 167             if (ValBuf) {
 168                 ListView_SetItemTextW(hwndLV, index, 2, ValBuf);
 169             } else {
 170                 ListView_SetItemTextW(hwndLV, index, 2, g_szValueNotSet);
 171             }
 172             break;
 173         case REG_DWORD: {
 174                 WCHAR buf[64];
 175                 WCHAR format[] = {'0','x','%','0','8','x',' ','(','%','u',')',0};
 176                 wsprintfW(buf, format, *(DWORD*)ValBuf, *(DWORD*)ValBuf);
 177                 ListView_SetItemTextW(hwndLV, index, 2, buf);
 178             }
 179             break;
 180         case REG_BINARY: {
 181                 unsigned int i;
 182                 LPBYTE pData = ValBuf;
 183                 LPWSTR strBinary = HeapAlloc(GetProcessHeap(), 0, dwCount * sizeof(WCHAR) * 3 + sizeof(WCHAR));
 184                 WCHAR format[] = {'%','0','2','X',' ',0};
 185                 for (i = 0; i < dwCount; i++)
 186                     wsprintfW( strBinary + i*3, format, pData[i] );
 187                 strBinary[dwCount * 3] = 0;
 188                 ListView_SetItemTextW(hwndLV, index, 2, strBinary);
 189                 HeapFree(GetProcessHeap(), 0, strBinary);
 190             }
 191             break;
 192         case REG_MULTI_SZ:
 193             MakeMULTISZDisplayable(ValBuf);
 194             ListView_SetItemTextW(hwndLV, index, 2, ValBuf);
 195             break;
 196         default:
 197           {
 198             WCHAR szText[128];
 199             LoadStringW(hInst, IDS_REGISTRY_VALUE_CANT_DISPLAY, szText, COUNT_OF(szText));
 200             ListView_SetItemTextW(hwndLV, index, 2, szText);
 201             break;
 202           }
 203         }
 204     }
 205 }
 206
 207 static BOOL InitListViewImageList(HWND hWndListView)
 208 {
 209     HIMAGELIST himl;
 210     HICON hicon;
 211     INT cx = GetSystemMetrics(SM_CXSMICON);
 212     INT cy = GetSystemMetrics(SM_CYSMICON);
 213
 214     himl = ImageList_Create(cx, cy, ILC_MASK, 0, 2);
 215     if (!himl)
 216         return FALSE;
 217
 218     hicon = LoadImageW(hInst, MAKEINTRESOURCEW(IDI_STRING),
 219         IMAGE_ICON, cx, cy, LR_DEFAULTCOLOR);
 220     Image_String = ImageList_AddIcon(himl, hicon);
 221
 222     hicon = LoadImageW(hInst, MAKEINTRESOURCEW(IDI_BIN),
 223         IMAGE_ICON, cx, cy, LR_DEFAULTCOLOR);
 224     Image_Binary = ImageList_AddIcon(himl, hicon);
 225
 226     SendMessageW( hWndListView, LVM_SETIMAGELIST, LVSIL_SMALL, (LPARAM) himl );
 227
 228     /* fail if some of the icons failed to load */
 229     if (ImageList_GetImageCount(himl) < 2)
 230         return FALSE;
 231
 232     return TRUE;
 233 }
 234
 235 static BOOL CreateListColumns(HWND hWndListView)
 236 {
 237     WCHAR szText[50];
 238     int index;
 239     LVCOLUMNW lvC;
 240
 241     /* Create columns. */
 242     lvC.mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT | LVCF_SUBITEM;
 243     lvC.pszText = szText;
 244
 245     /* Load the column labels from the resource file. */
 246     for (index = 0; index < MAX_LIST_COLUMNS; index++) {
 247         lvC.iSubItem = index;
 248         lvC.cx = default_column_widths[index];
 249         lvC.fmt = column_alignment[index];
 250         LoadStringW(hInst, IDS_LIST_COLUMN_FIRST + index, szText, sizeof(szText)/sizeof(WCHAR));
 251         if (ListView_InsertColumnW(hWndListView, index, &lvC) == -1) return FALSE;
 252     }
 253     return TRUE;
 254 }
 255
 256 /* OnGetDispInfo - processes the LVN_GETDISPINFO notification message.  */
 257
 258 static void OnGetDispInfo(NMLVDISPINFOW* plvdi)
 259 {
 260     static WCHAR buffer[200];
 261     static WCHAR reg_szT[]               = {'R','E','G','_','S','Z',0},
 262                  reg_expand_szT[]        = {'R','E','G','_','E','X','P','A','N','D','_','S','Z',0},
 263                  reg_binaryT[]           = {'R','E','G','_','B','I','N','A','R','Y',0},
 264                  reg_dwordT[]            = {'R','E','G','_','D','W','O','R','D',0},
 265                  reg_dword_big_endianT[] = {'R','E','G','_','D','W','O','R','D','_',
 266                                             'B','I','G','_','E','N','D','I','A','N',0},
 267                  reg_multi_szT[]         = {'R','E','G','_','M','U','L','T','I','_','S','Z',0},
 268                  reg_linkT[]             = {'R','E','G','_','L','I','N','K',0},
 269                  reg_resource_listT[]    = {'R','E','G','_','R','E','S','O','U','R','C','E','_','L','I','S','T',0},
 270                  reg_noneT[]             = {'R','E','G','_','N','O','N','E',0},
 271                  emptyT[]                = {0};
 272
 273     plvdi->item.pszText = NULL;
 274     plvdi->item.cchTextMax = 0;
 275
 276     switch (plvdi->item.iSubItem) {
 277     case 0:
 278         plvdi->item.pszText = g_pszDefaultValueName;
 279         break;
 280     case 1:
 281         switch (((LINE_INFO*)plvdi->item.lParam)->dwValType) {
 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 szUnknownFmt[64];
 312             LoadStringW(hInst, IDS_REGISTRY_UNKNOWN_TYPE, szUnknownFmt, COUNT_OF(szUnknownFmt));
 313             wsprintfW(buffer, szUnknownFmt, plvdi->item.lParam);
 314             plvdi->item.pszText = buffer;
 315             break;
 316           }
 317         }
 318         break;
 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 && l->dwValType != r->dwValType)
 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     }
 344     return g_invertSort ? lstrcmpiW(r->name, l->name) : lstrcmpiW(l->name, r->name);
 345 }
 346
 347 HWND StartValueRename(HWND hwndLV)
 348 {
 349     int item;
 350
 351     item = ListView_GetNextItem(hwndLV, -1, LVNI_FOCUSED | LVNI_SELECTED);
 352     if (item < 1) { /* cannot rename default key */
 353         MessageBeep(MB_ICONHAND);
 354         return 0;
 355     }
 356     return ListView_EditLabel(hwndLV, item);
 357 }
 358
 359 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 360 {
 361     switch (LOWORD(wParam)) {
 362         /*    case ID_FILE_OPEN: */
 363         /*        break; */
 364     default:
 365         return FALSE;
 366     }
 367     return TRUE;
 368 }
 369
 370 static LRESULT CALLBACK ListWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 371 {
 372     switch (message) {
 373     case WM_COMMAND:
 374         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 375             return CallWindowProc(g_orgListWndProc, hWnd, message, wParam, lParam);
 376         }
 377         break;
 378     case WM_NOTIFY_REFLECT:
 379         switch (((LPNMHDR)lParam)->code) {
 380
 381         case LVN_BEGINLABELEDITW:
 382             if (!((NMLVDISPINFOW *)lParam)->item.iItem)
 383                 return 1;
 384             return 0;
 385         case LVN_GETDISPINFOW:
 386             OnGetDispInfo((NMLVDISPINFOW*)lParam);
 387             break;
 388         case LVN_COLUMNCLICK:
 389             if (g_columnToSort == ((LPNMLISTVIEW)lParam)->iSubItem)
 390                 g_invertSort = !g_invertSort;
 391             else {
 392                 g_columnToSort = ((LPNMLISTVIEW)lParam)->iSubItem;
 393                 g_invertSort = FALSE;
 394             }
 395
 396             SendMessageW(hWnd, LVM_SORTITEMS, (WPARAM)hWnd, (LPARAM)CompareFunc);
 397             break;
 398         case LVN_ENDLABELEDITW: {
 399                 LPNMLVDISPINFOW dispInfo = (LPNMLVDISPINFOW)lParam;
 400                 LPWSTR oldName = GetItemText(hWnd, dispInfo->item.iItem);
 401                 LONG ret;
 402                 if (!oldName) return -1; /* cannot rename a default value */
 403                 ret = RenameValue(hWnd, g_currentRootKey, g_currentPath, oldName, dispInfo->item.pszText);
 404                 if (ret)
 405                 {
 406                     RefreshListView(hWnd, g_currentRootKey, g_currentPath, dispInfo->item.pszText);
 407                 }
 408                 HeapFree(GetProcessHeap(), 0, oldName);
 409                 return 0;
 410             }
 411         case NM_RETURN: {
 412                 int cnt = ListView_GetNextItem(hWnd, -1, LVNI_FOCUSED | LVNI_SELECTED);
 413                 if (cnt != -1)
 414                     SendMessageW(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 415             }
 416             break;
 417         case NM_DBLCLK: {
 418                 NMITEMACTIVATE* nmitem = (LPNMITEMACTIVATE)lParam;
 419                 LVHITTESTINFO info;
 420
 421                 /* if (nmitem->hdr.hwndFrom != hWnd) break; unnecessary because of WM_NOTIFY_REFLECT */
 422                 /*            if (nmitem->hdr.idFrom != IDW_LISTVIEW) break;  */
 423                 /*            if (nmitem->hdr.code != ???) break;  */
 424 #ifdef _MSC_VER
 425                 switch (nmitem->uKeyFlags) {
 426                 case LVKF_ALT:     /*  The ALT key is pressed.   */
 427                     /* properties dialog box ? */
 428                     break;
 429                 case LVKF_CONTROL: /*  The CTRL key is pressed. */
 430                     /* run dialog box for providing parameters... */
 431                     break;
 432                 case LVKF_SHIFT:   /*  The SHIFT key is pressed.    */
 433                     break;
 434                 }
 435 #endif
 436                 info.pt.x = nmitem->ptAction.x;
 437                 info.pt.y = nmitem->ptAction.y;
 438                 if (ListView_HitTest(hWnd, &info) != -1) {
 439                     ListView_SetItemState(hWnd, -1, 0, LVIS_FOCUSED|LVIS_SELECTED);
 440                     ListView_SetItemState(hWnd, info.iItem, LVIS_FOCUSED|LVIS_SELECTED,
 441                         LVIS_FOCUSED|LVIS_SELECTED);
 442                     SendMessageW(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 443                 }
 444             }
 445             break;
 446
 447         default:
 448             return 0; /* shouldn't call default ! */
 449         }
 450         break;
 451     case WM_CONTEXTMENU: {
 452         int cnt = ListView_GetNextItem(hWnd, -1, LVNI_SELECTED);
 453         TrackPopupMenu(GetSubMenu(hPopupMenus, cnt == -1 ? PM_NEW : PM_MODIFYVALUE),
 454                        TPM_RIGHTBUTTON, (short)LOWORD(lParam), (short)HIWORD(lParam),
 455                        0, hFrameWnd, NULL);
 456         break;
 457     }
 458     default:
 459         return CallWindowProc(g_orgListWndProc, hWnd, message, wParam, lParam);
 460     }
 461     return 0;
 462 }
 463
 464
 465 HWND CreateListView(HWND hwndParent, UINT id)
 466 {
 467     RECT rcClient;
 468     HWND hwndLV;
 469     WCHAR ListView[] = {'L','i','s','t',' ','V','i','e','w',0};
 470
 471     /* prepare strings */
 472     LoadStringW(hInst, IDS_REGISTRY_VALUE_NOT_SET, g_szValueNotSet, COUNT_OF(g_szValueNotSet));
 473
 474     /* Get the dimensions of the parent window's client area, and create the list view control.  */
 475     GetClientRect(hwndParent, &rcClient);
 476     hwndLV = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW, ListView,
 477                             WS_VISIBLE | WS_CHILD | WS_TABSTOP | LVS_REPORT | LVS_EDITLABELS,
 478                             0, 0, rcClient.right, rcClient.bottom,
 479                             hwndParent, ULongToHandle(id), hInst, NULL);
 480     if (!hwndLV) return NULL;
 481     SendMessageW(hwndLV, LVM_SETUNICODEFORMAT, TRUE, 0);
 482     SendMessageW(hwndLV, LVM_SETEXTENDEDLISTVIEWSTYLE, 0, LVS_EX_FULLROWSELECT);
 483
 484     /* Initialize the image list */
 485     if (!InitListViewImageList(hwndLV)) goto fail;
 486     if (!CreateListColumns(hwndLV)) goto fail;
 487     g_orgListWndProc = (WNDPROC) SetWindowLongPtrW(hwndLV, GWLP_WNDPROC, (LPARAM)ListWndProc);
 488     return hwndLV;
 489 fail:
 490     DestroyWindow(hwndLV);
 491     return NULL;
 492 }
 493
 494 BOOL RefreshListView(HWND hwndLV, HKEY hKeyRoot, LPCWSTR keyPath, LPCWSTR highlightValue)
 495 {
 496     BOOL result = FALSE;
 497     DWORD max_sub_key_len;
 498     DWORD max_val_name_len, valNameLen;
 499     DWORD max_val_size, valSize;
 500     DWORD val_count, index, valType;
 501     WCHAR* valName = 0;
 502     BYTE* valBuf = 0;
 503     HKEY hKey = 0;
 504     LONG errCode;
 505     INT count, i;
 506     LVITEMW item;
 507
 508     if (!hwndLV) return FALSE;
 509
 510     SendMessageW(hwndLV, WM_SETREDRAW, FALSE, 0);
 511
 512     errCode = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_READ, &hKey);
 513     if (errCode != ERROR_SUCCESS) goto done;
 514
 515     count = ListView_GetItemCount(hwndLV);
 516     for (i = 0; i < count; i++) {
 517         item.mask = LVIF_PARAM;
 518         item.iItem = i;
 519         SendMessageW( hwndLV, LVM_GETITEM, 0, (LPARAM)&item );
 520         HeapFree(GetProcessHeap(), 0, ((LINE_INFO*)item.lParam)->name);
 521         HeapFree(GetProcessHeap(), 0, (void*)item.lParam);
 522     }
 523     g_columnToSort = ~0U;
 524     SendMessageW( hwndLV, LVM_DELETEALLITEMS, 0, 0L );
 525
 526     /* get size information and resize the buffers if necessary */
 527     errCode = RegQueryInfoKeyW(hKey, NULL, NULL, NULL, NULL, &max_sub_key_len, NULL,
 528                               &val_count, &max_val_name_len, &max_val_size, NULL, NULL);
 529     if (errCode != ERROR_SUCCESS) goto done;
 530
 531     /* account for the terminator char */
 532     max_val_name_len++;
 533     max_val_size++;
 534
 535     valName = HeapAlloc(GetProcessHeap(), 0, max_val_name_len * sizeof(WCHAR));
 536     if (!valName)
 537         goto done;
 538     valBuf = HeapAlloc(GetProcessHeap(), 0, max_val_size);
 539     if (!valBuf)
 540         goto done;
 541
 542     if (RegQueryValueExW(hKey, NULL, NULL, &valType, valBuf, &valSize) == ERROR_FILE_NOT_FOUND) {
 543         AddEntryToList(hwndLV, NULL, REG_SZ, NULL, 0, !highlightValue);
 544     }
 545     for(index = 0; index < val_count; index++) {
 546         BOOL bSelected = (valName == highlightValue); /* NOT a bug, we check for double NULL here */
 547         valNameLen = max_val_name_len;
 548         valSize = max_val_size;
 549         valType = 0;
 550         errCode = RegEnumValueW(hKey, index, valName, &valNameLen, NULL, &valType, valBuf, &valSize);
 551         if (errCode != ERROR_SUCCESS) goto done;
 552         valBuf[valSize] = 0;
 553         if (highlightValue && !lstrcmpW(valName, highlightValue))
 554             bSelected = TRUE;
 555         AddEntryToList(hwndLV, valName[0] ? valName : NULL, valType, valBuf, valSize, bSelected);
 556     }
 557     SendMessageW(hwndLV, LVM_SORTITEMS, (WPARAM)hwndLV, (LPARAM)CompareFunc);
 558
 559     g_currentRootKey = hKeyRoot;
 560     if (keyPath != g_currentPath) {
 561         HeapFree(GetProcessHeap(), 0, g_currentPath);
 562         g_currentPath = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(keyPath) + 1) * sizeof(WCHAR));
 563         if (!g_currentPath) goto done;
 564         lstrcpyW(g_currentPath, keyPath);
 565     }
 566
 567     result = TRUE;
 568
 569 done:
 570     HeapFree(GetProcessHeap(), 0, valBuf);
 571     HeapFree(GetProcessHeap(), 0, valName);
 572     SendMessageW(hwndLV, WM_SETREDRAW, TRUE, 0);
 573     if (hKey) RegCloseKey(hKey);
 574
 575     return result;
 576 }