reactos/subsys/system/regedit/treeview.c

   1 /*
   2  * Regedit treeview
   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #define WIN32_LEAN_AND_MEAN     /* Exclude rarely-used stuff from Windows headers */
  22
  23 #define NONAMELESSUNION
  24 #define NONAMELESSSTRUCT
  25 #include <windows.h>
  26 #include <commctrl.h>
  27 #include <stdlib.h>
  28 #include <tchar.h>
  29 #include <process.h>
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <tchar.h>
  33
  34 #include "main.h"
  35
  36 /* Global variables and constants  */
  37 /* Image_Open, Image_Closed, and Image_Root - integer variables for indexes of the images.  */
  38 /* CX_ICON and CY_ICON - width and height of an icon.  */
  39 /* NUM_ICON - number of icons to add to the image list.  */
  40 int Image_Open;
  41 int Image_Closed;
  42 int Image_Root;
  43
  44 static LPTSTR pathBuffer;
  45
  46 #define CX_ICON    16
  47 #define CY_ICON    16
  48 #define NUM_ICONS    3
  49
  50 static BOOL get_item_path(HWND hwndTV, HTREEITEM hItem, HKEY* phKey, LPTSTR* pKeyPath, int* pPathLen, int* pMaxLen)
  51 {
  52     TVITEM item;
  53     int maxLen, len;
  54     LPTSTR newStr;
  55
  56     item.mask = TVIF_PARAM;
  57     item.hItem = hItem;
  58     if (!TreeView_GetItem(hwndTV, &item)) return FALSE;
  59
  60     if (item.lParam) {
  61         /* found root key with valid key value */
  62         *phKey = (HKEY)item.lParam;
  63         return TRUE;
  64     }
  65
  66     if(!get_item_path(hwndTV, TreeView_GetParent(hwndTV, hItem), phKey, pKeyPath, pPathLen, pMaxLen)) return FALSE;
  67     if (*pPathLen) {
  68         (*pKeyPath)[*pPathLen] = _T('\\');
  69         ++(*pPathLen);
  70     }
  71
  72     do {
  73         item.mask = TVIF_TEXT;
  74         item.hItem = hItem;
  75         item.pszText = *pKeyPath + *pPathLen;
  76         item.cchTextMax = maxLen = *pMaxLen - *pPathLen;
  77         if (!TreeView_GetItem(hwndTV, &item)) return FALSE;
  78         len = _tcslen(item.pszText);
  79         if (len < maxLen - 1) {
  80             *pPathLen += len;
  81             break;
  82         }
  83         newStr = HeapReAlloc(GetProcessHeap(), 0, *pKeyPath, *pMaxLen * 2);
  84         if (!newStr) return FALSE;
  85         *pKeyPath = newStr;
  86         *pMaxLen *= 2;
  87     } while(TRUE);
  88
  89     return TRUE;
  90 }
  91
  92 LPCTSTR GetItemPath(HWND hwndTV, HTREEITEM hItem, HKEY* phRootKey)
  93 {
  94     int pathLen = 0, maxLen;
  95
  96     *phRootKey = NULL;
  97     if (!pathBuffer) pathBuffer = HeapAlloc(GetProcessHeap(), 0, 1024);
  98     if (!pathBuffer) return NULL;
  99     *pathBuffer = 0;
 100     maxLen = HeapSize(GetProcessHeap(), 0, pathBuffer);
 101     if (maxLen == -1) return NULL;
 102     if (!hItem) hItem = TreeView_GetSelection(hwndTV);
 103     if (!hItem) return NULL;
 104     if (!get_item_path(hwndTV, hItem, phRootKey, &pathBuffer, &pathLen, &maxLen)) {
 105                 return NULL;
 106         }
 107     return pathBuffer;
 108 }
 109
 110 /* Add an entry to the tree. Only give hKey for root nodes (HKEY_ constants) */
 111 static HTREEITEM AddEntryToTree(HWND hwndTV, HTREEITEM hParent, LPTSTR label, HKEY hKey, DWORD dwChildren)
 112 {
 113     TVITEM tvi;
 114     TVINSERTSTRUCT tvins;
 115
 116     if (hKey) {
 117         if (RegQueryInfoKey(hKey, 0, 0, 0, &dwChildren, 0, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS) {
 118             dwChildren = 0;
 119         }
 120     }
 121
 122     tvi.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
 123     tvi.pszText = label;
 124     tvi.cchTextMax = lstrlen(tvi.pszText);
 125     tvi.iImage = Image_Closed;
 126     tvi.iSelectedImage = Image_Open;
 127     tvi.cChildren = dwChildren;
 128     tvi.lParam = (LPARAM)hKey;
 129     tvins.DUMMYUNIONNAME.item = tvi;
 130     tvins.hInsertAfter = (HTREEITEM)(hKey ? TVI_LAST : TVI_FIRST);
 131     tvins.hParent = hParent;
 132     return TreeView_InsertItem(hwndTV, &tvins);
 133 }
 134
 135 static BOOL RefreshTreeItem(HWND hwndTV, HTREEITEM hItem)
 136 {
 137     HKEY hRoot, hKey, hSubKey;
 138     HTREEITEM childItem;
 139     LPCTSTR KeyPath;
 140     DWORD dwCount, dwIndex, dwMaxSubKeyLen;
 141     LPTSTR Name = NULL;
 142     TVITEM tvItem;
 143     LPTSTR pszNodes = NULL;
 144     BOOL bSuccess = FALSE;
 145     LPTSTR s;
 146     BOOL bAddedAny;
 147
 148     KeyPath = GetItemPath(hwndTV, hItem, &hRoot);
 149
 150     if (*KeyPath) {
 151         if (RegOpenKeyEx(hRoot, KeyPath, 0, KEY_READ, &hKey) != ERROR_SUCCESS) {
 152             goto done;
 153         }
 154     } else {
 155         hKey = hRoot;
 156     }
 157
 158     if (RegQueryInfoKey(hKey, 0, 0, 0, &dwCount, &dwMaxSubKeyLen, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS) {
 159         goto done;
 160     }
 161
 162     /* Set the number of children again */
 163     tvItem.mask = TVIF_CHILDREN;
 164     tvItem.hItem = hItem;
 165     tvItem.cChildren = dwCount;
 166     if (!TreeView_SetItem(hwndTV, &tvItem)) {
 167         goto done;
 168     }
 169
 170     /* We don't have to bother with the rest if it's not expanded. */
 171     if (TreeView_GetItemState(hwndTV, hItem, TVIS_EXPANDED) == 0) {
 172         RegCloseKey(hKey);
 173         bSuccess = TRUE;
 174         goto done;
 175     }
 176
 177     dwMaxSubKeyLen++; /* account for the \0 terminator */
 178     if (!(Name = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(TCHAR)))) {
 179         goto done;
 180     }
 181     tvItem.cchTextMax = dwMaxSubKeyLen;
 182     /*if (!(tvItem.pszText = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(TCHAR)))) {
 183         goto done;
 184     }*/
 185
 186     /* Get all of the tree node siblings in one contiguous block of memory */
 187     {
 188         DWORD dwPhysicalSize = 0;
 189         DWORD dwActualSize = 0;
 190         DWORD dwNewPhysicalSize;
 191         LPTSTR pszNewNodes;
 192         DWORD dwStep = 10000;
 193
 194         for (childItem = TreeView_GetChild(hwndTV, hItem); childItem;
 195                 childItem = TreeView_GetNextSibling(hwndTV, childItem)) {
 196
 197             if (dwActualSize + dwMaxSubKeyLen + 1 > dwPhysicalSize)
 198             {
 199                 dwNewPhysicalSize = dwActualSize + dwMaxSubKeyLen + 1 + dwStep;
 200
 201                 if (pszNodes)
 202                     pszNewNodes = (LPTSTR) HeapReAlloc(GetProcessHeap(), 0, pszNodes, dwNewPhysicalSize * sizeof(TCHAR));
 203                 else
 204                     pszNewNodes = (LPTSTR) HeapAlloc(GetProcessHeap(), 0, dwNewPhysicalSize * sizeof(TCHAR));
 205                 if (!pszNewNodes)
 206                     goto done;
 207
 208                 dwPhysicalSize = dwNewPhysicalSize;
 209                 pszNodes = pszNewNodes;
 210             }
 211
 212             tvItem.mask = TVIF_TEXT;
 213             tvItem.hItem = childItem;
 214             tvItem.pszText = &pszNodes[dwActualSize];
 215             tvItem.cchTextMax = dwPhysicalSize - dwActualSize;
 216             if (!TreeView_GetItem(hwndTV, &tvItem))
 217                 goto done;
 218
 219             dwActualSize += _tcslen(&pszNodes[dwActualSize]) + 1;
 220         }
 221
 222         if (pszNodes)
 223             pszNodes[dwActualSize] = '\0';
 224     }
 225
 226     /* Now go through all the children in the registry, and check if any have to be added. */
 227     bAddedAny = FALSE;
 228     for (dwIndex = 0; dwIndex < dwCount; dwIndex++) {
 229         DWORD cName = dwMaxSubKeyLen, dwSubCount;
 230         BOOL found;
 231
 232         found = FALSE;
 233         if (RegEnumKeyEx(hKey, dwIndex, Name, &cName, 0, 0, 0, NULL) != ERROR_SUCCESS) {
 234             continue;
 235         }
 236
 237         /* Check if the node is already in there. */
 238         if (pszNodes) {
 239             for (s = pszNodes; *s; s += _tcslen(s) + 1) {
 240                 if (!_tcscmp(s, Name)) {
 241                     found = TRUE;
 242                     break;
 243                 }
 244             }
 245         }
 246
 247         if (found == FALSE) {
 248             /* Find the number of children of the node. */
 249             dwSubCount = 0;
 250             if (RegOpenKeyEx(hKey, Name, 0, KEY_QUERY_VALUE, &hSubKey) == ERROR_SUCCESS) {
 251                 if (RegQueryInfoKey(hSubKey, 0, 0, 0, &dwSubCount, 0, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS) {
 252                     dwSubCount = 0;
 253                 }
 254                 RegCloseKey(hSubKey);
 255             }
 256
 257             AddEntryToTree(hwndTV, hItem, Name, NULL, dwSubCount);
 258             bAddedAny = TRUE;
 259         }
 260     }
 261     RegCloseKey(hKey);
 262
 263     if (bAddedAny)
 264         SendMessage(hwndTV, TVM_SORTCHILDREN, 0, (LPARAM) hItem);
 265
 266     /* Now go through all the children in the tree, and check if any have to be removed. */
 267     childItem = TreeView_GetChild(hwndTV, hItem);
 268     while (childItem) {
 269         HTREEITEM nextItem = TreeView_GetNextSibling(hwndTV, childItem);
 270         if (RefreshTreeItem(hwndTV, childItem) == FALSE) {
 271             TreeView_DeleteItem(hwndTV, childItem);
 272         }
 273         childItem = nextItem;
 274     }
 275     bSuccess = TRUE;
 276
 277 done:
 278     if (pszNodes)
 279         HeapFree(GetProcessHeap(), 0, pszNodes);
 280     if (Name)
 281         HeapFree(GetProcessHeap(), 0, Name);
 282     return bSuccess;
 283 }
 284
 285 BOOL RefreshTreeView(HWND hwndTV)
 286 {
 287     HTREEITEM hItem;
 288     HTREEITEM hSelectedItem;
 289     HCURSOR hcursorOld;
 290
 291     hSelectedItem = TreeView_GetSelection(hwndTV);
 292     hcursorOld = SetCursor(LoadCursor(NULL, IDC_WAIT));
 293     SendMessage(hwndTV, WM_SETREDRAW, FALSE, 0);
 294
 295     hItem = TreeView_GetChild(hwndTV, TreeView_GetRoot(hwndTV));
 296     while (hItem) {
 297         RefreshTreeItem(hwndTV, hItem);
 298         hItem = TreeView_GetNextSibling(hwndTV, hItem);
 299     }
 300
 301     SendMessage(hwndTV, WM_SETREDRAW, TRUE, 0);
 302     SetCursor(hcursorOld);
 303
 304     /* We reselect the currently selected node, this will prompt a refresh of the listview. */
 305     TreeView_SelectItem(hwndTV, hSelectedItem);
 306     return TRUE;
 307 }
 308
 309 HTREEITEM InsertNode(HWND hwndTV, HTREEITEM hItem, LPTSTR name)
 310 {
 311     TCHAR buf[MAX_NEW_KEY_LEN];
 312     HTREEITEM hNewItem = 0;
 313     TVITEMEX item;
 314
 315     if (!hItem) hItem = TreeView_GetSelection(hwndTV);
 316     if (!hItem) return FALSE;
 317     if (TreeView_GetItemState(hwndTV, hItem, TVIS_EXPANDEDONCE)) {
 318         hNewItem = AddEntryToTree(hwndTV, hItem, name, 0, 0);
 319         SendMessage(hwndTV, TVM_SORTCHILDREN, 0, (LPARAM) hItem);
 320     } else {
 321         item.mask = TVIF_CHILDREN | TVIF_HANDLE;
 322         item.hItem = hItem;
 323         if (!TreeView_GetItem(hwndTV, &item)) return FALSE;
 324         item.cChildren = 1;
 325         if (!TreeView_SetItem(hwndTV, &item)) return FALSE;
 326     }
 327     TreeView_Expand(hwndTV, hItem, TVE_EXPAND);
 328     if (!hNewItem) {
 329         for(hNewItem = TreeView_GetChild(hwndTV, hItem); hNewItem; hNewItem = TreeView_GetNextSibling(hwndTV, hNewItem)) {
 330             item.mask = TVIF_HANDLE | TVIF_TEXT;
 331             item.hItem = hNewItem;
 332             item.pszText = buf;
 333             item.cchTextMax = COUNT_OF(buf);
 334             if (!TreeView_GetItem(hwndTV, &item)) continue;
 335             if (lstrcmp(name, item.pszText) == 0) break;
 336         }
 337     }
 338     if (hNewItem) TreeView_SelectItem(hwndTV, hNewItem);
 339
 340     return hNewItem;
 341 }
 342
 343 HWND StartKeyRename(HWND hwndTV)
 344 {
 345     HTREEITEM hItem;
 346
 347     if(!(hItem = TreeView_GetSelection(hwndTV))) return 0;
 348     return TreeView_EditLabel(hwndTV, hItem);
 349 }
 350
 351 static BOOL InitTreeViewItems(HWND hwndTV, LPTSTR pHostName)
 352 {
 353     TVITEM tvi;
 354     TVINSERTSTRUCT tvins;
 355     HTREEITEM hRoot;
 356
 357     tvi.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
 358     /* Set the text of the item.  */
 359     tvi.pszText = pHostName;
 360     tvi.cchTextMax = lstrlen(tvi.pszText);
 361     /* Assume the item is not a parent item, so give it an image.  */
 362     tvi.iImage = Image_Root;
 363     tvi.iSelectedImage = Image_Root;
 364     tvi.cChildren = 5;
 365     /* Save the heading level in the item's application-defined data area.  */
 366     tvi.lParam = (LPARAM)NULL;
 367     tvins.DUMMYUNIONNAME.item = tvi;
 368     tvins.hInsertAfter = (HTREEITEM)TVI_FIRST;
 369     tvins.hParent = TVI_ROOT;
 370     /* Add the item to the tree view control.  */
 371     if (!(hRoot = TreeView_InsertItem(hwndTV, &tvins))) return FALSE;
 372
 373     if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_CLASSES_ROOT"), HKEY_CLASSES_ROOT, 1)) return FALSE;
 374     if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_CURRENT_USER"), HKEY_CURRENT_USER, 1)) return FALSE;
 375     if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_LOCAL_MACHINE"), HKEY_LOCAL_MACHINE, 1)) return FALSE;
 376     if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_USERS"), HKEY_USERS, 1)) return FALSE;
 377     if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_CURRENT_CONFIG"), HKEY_CURRENT_CONFIG, 1)) return FALSE;
 378
 379         if (GetVersion() & 0x80000000)
 380     {
 381         /* Win9x specific key */
 382         if (!AddEntryToTree(hwndTV, hRoot, _T("HKEY_DYN_DATA"), HKEY_DYN_DATA, 1)) return FALSE;
 383         }
 384
 385     /* expand and select host name */
 386     TreeView_Expand(hwndTV, hRoot, TVE_EXPAND);
 387     TreeView_Select(hwndTV, hRoot, TVGN_CARET);
 388     return TRUE;
 389 }
 390
 391
 392 /*
 393  * InitTreeViewImageLists - creates an image list, adds three bitmaps
 394  * to it, and associates the image list with a tree view control.
 395  * Returns TRUE if successful, or FALSE otherwise.
 396  * hwndTV - handle to the tree view control.
 397  */
 398 static BOOL InitTreeViewImageLists(HWND hwndTV)
 399 {
 400     HIMAGELIST himl;  /* handle to image list  */
 401     HICON hico;       /* handle to icon  */
 402
 403     /* Create the image list.  */
 404     if ((himl = ImageList_Create(CX_ICON, CY_ICON,
 405                                  ILC_MASK, 0, NUM_ICONS)) == NULL)
 406         return FALSE;
 407
 408     /* Add the open file, closed file, and document bitmaps.  */
 409     hico = LoadIcon(hInst, MAKEINTRESOURCE(IDI_OPEN_FILE));
 410     Image_Open = ImageList_AddIcon(himl, hico);
 411
 412     hico = LoadIcon(hInst, MAKEINTRESOURCE(IDI_CLOSED_FILE));
 413     Image_Closed = ImageList_AddIcon(himl, hico);
 414
 415     hico = LoadIcon(hInst, MAKEINTRESOURCE(IDI_ROOT));
 416     Image_Root = ImageList_AddIcon(himl, hico);
 417
 418     /* Fail if not all of the images were added.  */
 419     if (ImageList_GetImageCount(himl) < NUM_ICONS)
 420     {
 421       return FALSE;
 422     }
 423
 424     /* Associate the image list with the tree view control.  */
 425     TreeView_SetImageList(hwndTV, himl, TVSIL_NORMAL);
 426
 427     return TRUE;
 428 }
 429
 430 BOOL OnTreeExpanding(HWND hwndTV, NMTREEVIEW* pnmtv)
 431 {
 432     DWORD dwCount, dwIndex, dwMaxSubKeyLen;
 433     HKEY hRoot, hNewKey, hKey;
 434     LPCTSTR keyPath;
 435     LPTSTR Name;
 436     LONG errCode;
 437     HCURSOR hcursorOld;
 438
 439     static int expanding;
 440     if (expanding) return FALSE;
 441     if (pnmtv->itemNew.state & TVIS_EXPANDEDONCE ) {
 442         return TRUE;
 443     }
 444     expanding = TRUE;
 445     hcursorOld = SetCursor(LoadCursor(NULL, IDC_WAIT));
 446     SendMessage(hwndTV, WM_SETREDRAW, FALSE, 0);
 447
 448     keyPath = GetItemPath(hwndTV, pnmtv->itemNew.hItem, &hRoot);
 449     if (!keyPath) goto done;
 450
 451     if (*keyPath) {
 452         errCode = RegOpenKeyEx(hRoot, keyPath, 0, KEY_READ, &hNewKey);
 453         if (errCode != ERROR_SUCCESS) goto done;
 454     } else {
 455         hNewKey = hRoot;
 456     }
 457
 458     errCode = RegQueryInfoKey(hNewKey, 0, 0, 0, &dwCount, &dwMaxSubKeyLen, 0, 0, 0, 0, 0, 0);
 459     if (errCode != ERROR_SUCCESS) goto done;
 460     dwMaxSubKeyLen++; /* account for the \0 terminator */
 461     Name = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(TCHAR));
 462     if (!Name) goto done;
 463
 464     for (dwIndex = 0; dwIndex < dwCount; dwIndex++) {
 465         DWORD cName = dwMaxSubKeyLen, dwSubCount;
 466
 467         errCode = RegEnumKeyEx(hNewKey, dwIndex, Name, &cName, 0, 0, 0, 0);
 468         if (errCode != ERROR_SUCCESS) continue;
 469         errCode = RegOpenKeyEx(hNewKey, Name, 0, KEY_QUERY_VALUE, &hKey);
 470         if (errCode == ERROR_SUCCESS) {
 471             errCode = RegQueryInfoKey(hKey, 0, 0, 0, &dwSubCount, 0, 0, 0, 0, 0, 0, 0);
 472             RegCloseKey(hKey);
 473         }
 474         if (errCode != ERROR_SUCCESS) dwSubCount = 0;
 475         AddEntryToTree(hwndTV, pnmtv->itemNew.hItem, Name, NULL, dwSubCount);
 476     }
 477
 478     SendMessage(hwndTV, TVM_SORTCHILDREN, 0, (LPARAM)pnmtv->itemNew.hItem);
 479
 480     RegCloseKey(hNewKey);
 481     HeapFree(GetProcessHeap(), 0, Name);
 482
 483 done:
 484     SendMessage(hwndTV, WM_SETREDRAW, TRUE, 0);
 485     SetCursor(hcursorOld);
 486     expanding = FALSE;
 487
 488     return TRUE;
 489 }
 490
 491
 492 BOOL CreateNewKey(HWND hwndTV, HTREEITEM hItem)
 493 {
 494     TCHAR szNewKeyFormat[128];
 495     TCHAR szNewKey[128];
 496     LPCTSTR pszKeyPath;
 497     int iIndex = 1;
 498     HKEY hRootKey;
 499     HKEY hKey = NULL;
 500     HKEY hNewKey = NULL;
 501     BOOL bSuccess = FALSE;
 502     LONG lResult;
 503     DWORD dwDisposition;
 504     HTREEITEM hNewItem;
 505
 506     pszKeyPath = GetItemPath(g_pChildWnd->hTreeWnd, hItem, &hRootKey);
 507     if (RegOpenKey(hRootKey, pszKeyPath, &hKey) != ERROR_SUCCESS)
 508         goto done;
 509
 510     if (LoadString(hInst, IDS_NEW_KEY, szNewKeyFormat, sizeof(szNewKeyFormat) / sizeof(szNewKeyFormat[0])) <= 0)
 511         goto done;
 512
 513     do
 514     {
 515         _sntprintf(szNewKey, sizeof(szNewKey) / sizeof(szNewKey[0]), szNewKeyFormat, iIndex++);
 516         lResult = RegCreateKeyEx(hKey, szNewKey, 0, NULL, 0, KEY_ALL_ACCESS, NULL, &hNewKey, &dwDisposition);
 517         if (hNewKey && (dwDisposition == REG_OPENED_EXISTING_KEY))
 518         {
 519             RegCloseKey(hNewKey);
 520             hNewKey = NULL;
 521         }
 522     }
 523     while(!hNewKey);
 524
 525     hNewItem = AddEntryToTree(hwndTV, hItem, szNewKey, NULL, 0);
 526     if (!hNewItem)
 527         goto done;
 528     SendMessage(hwndTV, TVM_SORTCHILDREN, 0, (LPARAM) hItem);
 529     TreeView_EditLabel(hwndTV, hNewItem);
 530
 531     bSuccess = TRUE;
 532
 533 done:
 534     if (hKey)
 535         RegCloseKey(hKey);
 536     if (hNewKey)
 537         RegCloseKey(hNewKey);
 538     return bSuccess;
 539 }
 540
 541
 542 /*
 543  * CreateTreeView - creates a tree view control.
 544  * Returns the handle to the new control if successful, or NULL otherwise.
 545  * hwndParent - handle to the control's parent window.
 546  */
 547 HWND CreateTreeView(HWND hwndParent, LPTSTR pHostName, int id)
 548 {
 549     RECT rcClient;
 550     HWND hwndTV;
 551
 552     /* Get the dimensions of the parent window's client area, and create the tree view control.  */
 553     GetClientRect(hwndParent, &rcClient);
 554     hwndTV = CreateWindowEx(WS_EX_CLIENTEDGE, WC_TREEVIEW, NULL,
 555                             WS_VISIBLE | WS_CHILD | WS_TABSTOP | TVS_HASLINES | TVS_HASBUTTONS | TVS_LINESATROOT | TVS_EDITLABELS,
 556                             0, 0, rcClient.right, rcClient.bottom,
 557                             hwndParent, (HMENU)id, hInst, NULL);
 558     /* Initialize the image list, and add items to the control.  */
 559     if (!InitTreeViewImageLists(hwndTV) || !InitTreeViewItems(hwndTV, pHostName)) {
 560         DestroyWindow(hwndTV);
 561         return NULL;
 562     }
 563     return hwndTV;
 564 }
 565
 566 void DestroyTreeView() {
 567         if (pathBuffer)
 568                 HeapFree(GetProcessHeap(), 0, pathBuffer);
 569 }
 570
 571 BOOL SelectNode(HWND hwndTV, LPCTSTR keyPath)
 572 {
 573         HTREEITEM hRoot, hItem;
 574         HTREEITEM hChildItem;
 575         TCHAR szPathPart[128];
 576         TCHAR szBuffer[128];
 577         LPCTSTR s;
 578         TVITEM tvi;
 579
 580         hRoot = TreeView_GetRoot(hwndTV);
 581         hItem = hRoot;
 582
 583         while(keyPath[0])
 584         {
 585                 s = _tcschr(keyPath, '\\');
 586                 lstrcpyn(szPathPart, keyPath, s ? s - keyPath + 1 : _tcslen(keyPath) + 1);
 587
 588                 /* Special case for root to expand root key abbreviations */
 589                 if (hItem == hRoot)
 590                 {
 591                         if (!_tcscmp(szPathPart, TEXT("HKCR")))
 592                                 _tcscpy(szPathPart, TEXT("HKEY_CLASSES_ROOT"));
 593                         else if (!_tcscmp(szPathPart, TEXT("HKCU")))
 594                                 _tcscpy(szPathPart, TEXT("HKEY_CURRENT_USER"));
 595                         else if (!_tcscmp(szPathPart, TEXT("HKLM")))
 596                                 _tcscpy(szPathPart, TEXT("HKEY_LOCAL_MACHINE"));
 597                         else if (!_tcscmp(szPathPart, TEXT("HKU")))
 598                                 _tcscpy(szPathPart, TEXT("HKEY_USERS"));
 599                         else if (!_tcscmp(szPathPart, TEXT("HKCC")))
 600                                 _tcscpy(szPathPart, TEXT("HKEY_CURRENT_CONFIG"));
 601                         else if (!_tcscmp(szPathPart, TEXT("HKDD")))
 602                                 _tcscpy(szPathPart, TEXT("HKEY_DYN_DATA"));
 603                 }
 604
 605                 for (hChildItem = TreeView_GetChild(hwndTV, hItem); hChildItem;
 606                         hChildItem = TreeView_GetNextSibling(hwndTV, hChildItem))
 607                 {
 608                         memset(&tvi, 0, sizeof(tvi));
 609                         tvi.hItem = hChildItem;
 610                         tvi.mask = TVIF_TEXT | TVIF_CHILDREN;
 611                         tvi.pszText = szBuffer;
 612                         tvi.cchTextMax = sizeof(szBuffer) / sizeof(szBuffer[0]);
 613
 614                         TreeView_GetItem(hwndTV, &tvi);
 615
 616                         if (!_tcscmp(szBuffer, szPathPart))
 617                                 break;
 618                 }
 619
 620                 if (!hChildItem)
 621                         return FALSE;
 622
 623                 if (tvi.cChildren > 0)
 624                 {
 625                         if (!TreeView_Expand(hwndTV, hChildItem, TVE_EXPAND))
 626                                 return FALSE;
 627                 }
 628
 629                 keyPath = s ? s + 1 : _T("");
 630                 hItem = hChildItem;
 631         }
 632
 633         TreeView_SelectItem(hwndTV, hItem);
 634         TreeView_EnsureVisible(hwndTV, hItem);
 635
 636         return TRUE;
 637 }
 638