4 * Copyright (C) 2002 Robert Dickenson <robd@reactos.org>
5 * Copyright (C) 2008 Alexander N. Sørnes <alex@thehandofagony.com>
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.
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.
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
22 #define WIN32_LEAN_AND_MEAN /* Exclude rarely-used stuff from Windows headers */
24 #define NONAMELESSUNION
25 #define NONAMELESSSTRUCT
30 #include <wine/debug.h>
36 WINE_DEFAULT_DEBUG_CHANNEL(regedit);
38 /* Global variables and constants */
39 /* Image_Open, Image_Closed, and Image_Root - integer variables for indexes of the images. */
40 /* CX_BITMAP and CY_BITMAP - width and height of an icon. */
41 /* NUM_BITMAPS - number of bitmaps to add to the image list. */
50 static BOOL UpdateExpandingTree(HWND hwndTV, HTREEITEM hItem, int state);
52 static BOOL get_item_path(HWND hwndTV, HTREEITEM hItem, HKEY* phKey, LPWSTR* pKeyPath, int* pPathLen, int* pMaxChars)
59 item.mask = TVIF_PARAM;
61 if (!TreeView_GetItemW(hwndTV, &item)) return FALSE;
64 /* found root key with valid key value */
65 *phKey = (HKEY)item.lParam;
69 hParent = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_PARENT, (LPARAM)hItem);
70 if(!get_item_path(hwndTV, hParent, phKey, pKeyPath, pPathLen, pMaxChars)) return FALSE;
72 (*pKeyPath)[*pPathLen] = '\\';
77 item.mask = TVIF_TEXT;
79 item.pszText = *pKeyPath + *pPathLen;
80 item.cchTextMax = maxChars = *pMaxChars - *pPathLen;
81 if (!TreeView_GetItemW(hwndTV, &item)) return FALSE;
82 chars = lstrlenW(item.pszText);
83 if (chars < maxChars - 1) {
87 newStr = HeapReAlloc(GetProcessHeap(), 0, *pKeyPath, *pMaxChars * 2);
88 if (!newStr) return FALSE;
96 LPWSTR GetItemPath(HWND hwndTV, HTREEITEM hItem, HKEY* phRootKey)
98 int pathLen = 0, maxLen;
101 pathBuffer = HeapAlloc(GetProcessHeap(), 0, 1024*sizeof(WCHAR));
102 if (!pathBuffer) return NULL;
104 maxLen = HeapSize(GetProcessHeap(), 0, pathBuffer);
105 if (maxLen == (SIZE_T) - 1) return NULL;
106 maxLen = maxLen / sizeof(WCHAR);
107 if (!hItem) hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CARET, 0);
108 if (!hItem) return NULL;
109 if (!get_item_path(hwndTV, hItem, phRootKey, &pathBuffer, &pathLen, &maxLen)) return NULL;
113 static LPWSTR get_path_component(LPCWSTR *lplpKeyName) {
114 LPCWSTR lpPos = *lplpKeyName;
115 LPWSTR lpResult = NULL;
119 while(*lpPos && *lpPos != '\\')
121 if (*lpPos && lpPos == *lplpKeyName)
123 len = lpPos+1-(*lplpKeyName);
124 lpResult = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
125 if (!lpResult) /* that would be very odd */
127 lstrcpynW(lpResult, *lplpKeyName, len);
128 *lplpKeyName = *lpPos ? lpPos+1 : NULL;
132 HTREEITEM FindPathInTree(HWND hwndTV, LPCWSTR lpKeyName) {
134 WCHAR buf[261]; /* tree view has 260 character limitation on item name */
135 HTREEITEM hItem, hOldItem;
138 hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_ROOT, 0);
139 SendMessageW(hwndTV, TVM_EXPAND, TVE_EXPAND, (LPARAM)hItem );
140 hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hItem);
143 LPWSTR lpItemName = get_path_component(&lpKeyName);
147 tvi.mask = TVIF_TEXT | TVIF_HANDLE;
150 tvi.cchTextMax = 260;
151 SendMessageW(hwndTV, TVM_GETITEMW, 0, (LPARAM) &tvi);
152 if (!lstrcmpiW(tvi.pszText, lpItemName)) {
153 SendMessageW(hwndTV, TVM_EXPAND, TVE_EXPAND, (LPARAM)hItem );
156 HeapFree(GetProcessHeap(), 0, lpItemName);
160 hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hItem);
163 hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)hItem);
165 HeapFree(GetProcessHeap(), 0, lpItemName);
174 BOOL DeleteNode(HWND hwndTV, HTREEITEM hItem)
176 if (!hItem) hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CARET, 0);
177 if (!hItem) return FALSE;
178 return (BOOL)SendMessageW(hwndTV, TVM_DELETEITEM, 0, (LPARAM)hItem);
181 /* Add an entry to the tree. Only give hKey for root nodes (HKEY_ constants) */
182 static HTREEITEM AddEntryToTree(HWND hwndTV, HTREEITEM hParent, LPWSTR label, HKEY hKey, DWORD dwChildren)
184 TVINSERTSTRUCTW tvins;
187 if (RegQueryInfoKeyW(hKey, 0, 0, 0, &dwChildren, 0, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS) {
192 tvins.u.item.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
193 tvins.u.item.pszText = label;
194 tvins.u.item.cchTextMax = lstrlenW(label);
195 tvins.u.item.iImage = Image_Closed;
196 tvins.u.item.iSelectedImage = Image_Open;
197 tvins.u.item.cChildren = dwChildren;
198 tvins.u.item.lParam = (LPARAM)hKey;
199 tvins.hInsertAfter = hKey ? TVI_LAST : TVI_SORT;
200 tvins.hParent = hParent;
202 return TreeView_InsertItemW(hwndTV, &tvins);
205 static BOOL match_string(LPCWSTR sstring1, LPCWSTR sstring2, int mode)
207 if (mode & SEARCH_WHOLE)
208 return !lstrcmpiW(sstring1, sstring2);
210 return NULL != StrStrIW(sstring1, sstring2);
213 static BOOL match_item(HWND hwndTV, HTREEITEM hItem, LPCWSTR sstring, int mode, int *row)
216 WCHAR keyname[KEY_MAX_LEN];
217 item.mask = TVIF_TEXT;
219 item.pszText = keyname;
220 item.cchTextMax = KEY_MAX_LEN;
221 if (!TreeView_GetItemW(hwndTV, &item)) return FALSE;
222 if ((mode & SEARCH_KEYS) && match_string(keyname, sstring, mode)) {
227 if (mode & (SEARCH_VALUES | SEARCH_CONTENT)) {
229 WCHAR valName[KEY_MAX_LEN], *KeyPath;
233 KeyPath = GetItemPath(hwndTV, hItem, &hRoot);
235 if (!KeyPath || !hRoot)
238 if (RegOpenKeyExW(hRoot, KeyPath, 0, KEY_READ, &hKey) != ERROR_SUCCESS) {
239 HeapFree(GetProcessHeap(), 0, KeyPath);
243 HeapFree(GetProcessHeap(), 0, KeyPath);
244 lenName = KEY_MAX_LEN;
246 /* RegEnumValue won't return empty default value, so fake it when dealing with *row,
247 which corresponds to list view rows, not value ids */
248 if (ERROR_SUCCESS == RegEnumValueW(hKey, 0, valName, &lenName, NULL, NULL, NULL, NULL) && *valName)
254 DWORD lenValue = 0, type = 0;
255 lenName = KEY_MAX_LEN;
257 if (ERROR_SUCCESS != RegEnumValueW(hKey,
258 i, valName, &lenName, NULL, &type, NULL, &lenValue))
261 if (mode & SEARCH_VALUES) {
262 if (match_string(valName, sstring, mode)) {
269 if ((mode & SEARCH_CONTENT) && (type == REG_EXPAND_SZ || type == REG_SZ)) {
271 buffer = HeapAlloc(GetProcessHeap(), 0, lenValue);
274 if (ERROR_SUCCESS != RegEnumValueW(hKey, i, NULL, NULL, NULL, &type, (LPBYTE)buffer, &lenValue))
276 if (match_string(buffer, sstring, mode)) {
277 HeapFree(GetProcessHeap(), 0, buffer);
282 HeapFree(GetProcessHeap(), 0, buffer);
292 HTREEITEM FindNext(HWND hwndTV, HTREEITEM hItem, LPCWSTR sstring, int mode, int *row)
294 HTREEITEM hTry, hLast;
298 if (match_item(hwndTV, hLast, sstring, mode & ~SEARCH_KEYS, row)) {
304 /* first look in subtree */
305 /* no children? maybe we haven't loaded them yet? */
306 if (!SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hLast)) {
307 UINT state = (UINT)SendMessageW(hwndTV, TVM_GETITEMSTATE, (WPARAM)hLast, -1);
308 UpdateExpandingTree(hwndTV, hLast, state);
310 hTry = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hLast);
312 if (match_item(hwndTV, hTry, sstring, mode, row))
317 /* no more children, maybe there are any siblings? */
318 hTry = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)hLast);
320 if (match_item(hwndTV, hTry, sstring, mode, row))
325 /* no more siblings, look at the next siblings in parent(s) */
326 hLast = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_PARENT, (LPARAM)hLast);
329 while (hLast && (hTry = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)hLast)) == NULL) {
330 hLast = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_PARENT, (LPARAM)hLast);
332 if (match_item(hwndTV, hTry, sstring, mode, row))
339 static BOOL RefreshTreeItem(HWND hwndTV, HTREEITEM hItem)
341 HKEY hRoot, hKey, hSubKey;
344 DWORD dwCount, dwIndex, dwMaxSubKeyLen;
349 KeyPath = GetItemPath(hwndTV, hItem, &hRoot);
351 if (!KeyPath || !hRoot)
355 if (RegOpenKeyExW(hRoot, KeyPath, 0, KEY_READ, &hKey) != ERROR_SUCCESS) {
356 WINE_TRACE("RegOpenKeyEx failed, %s was probably removed.\n", wine_dbgstr_w(KeyPath));
362 HeapFree(GetProcessHeap(), 0, KeyPath);
364 if (RegQueryInfoKeyW(hKey, 0, 0, 0, &dwCount, &dwMaxSubKeyLen, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS) {
368 /* Set the number of children again */
369 tvItem.mask = TVIF_CHILDREN;
370 tvItem.hItem = hItem;
371 tvItem.cChildren = dwCount;
372 if (!TreeView_SetItemW(hwndTV, &tvItem)) {
376 /* We don't have to bother with the rest if it's not expanded. */
377 if (SendMessageW(hwndTV, TVM_GETITEMSTATE, (WPARAM)hItem, TVIS_EXPANDED) == 0) {
382 dwMaxSubKeyLen++; /* account for the \0 terminator */
383 if (!(Name = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(WCHAR)))) {
386 tvItem.cchTextMax = dwMaxSubKeyLen;
387 if (!(tvItem.pszText = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(WCHAR)))) {
388 HeapFree(GetProcessHeap(), 0, Name);
392 /* Now go through all the children in the registry, and check if any have to be added. */
393 for (dwIndex = 0; dwIndex < dwCount; dwIndex++) {
394 DWORD cName = dwMaxSubKeyLen, dwSubCount;
398 if (RegEnumKeyExW(hKey, dwIndex, Name, &cName, 0, 0, 0, NULL) != ERROR_SUCCESS) {
402 /* Find the number of children of the node. */
404 if (RegOpenKeyExW(hKey, Name, 0, KEY_QUERY_VALUE, &hSubKey) == ERROR_SUCCESS) {
405 if (RegQueryInfoKeyW(hSubKey, 0, 0, 0, &dwSubCount, 0, 0, 0, 0, 0, 0, 0) != ERROR_SUCCESS) {
408 RegCloseKey(hSubKey);
411 /* Check if the node is already in there. */
412 for (childItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hItem); childItem;
413 childItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)childItem)) {
414 tvItem.mask = TVIF_TEXT;
415 tvItem.hItem = childItem;
416 if (!TreeView_GetItemW(hwndTV, &tvItem)) {
417 HeapFree(GetProcessHeap(), 0, Name);
418 HeapFree(GetProcessHeap(), 0, tvItem.pszText);
422 if (!lstrcmpiW(tvItem.pszText, Name)) {
428 if (found == FALSE) {
429 WINE_TRACE("New subkey %s\n", wine_dbgstr_w(Name));
430 AddEntryToTree(hwndTV, hItem, Name, NULL, dwSubCount);
433 HeapFree(GetProcessHeap(), 0, Name);
434 HeapFree(GetProcessHeap(), 0, tvItem.pszText);
437 /* Now go through all the children in the tree, and check if any have to be removed. */
438 childItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hItem);
440 HTREEITEM nextItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)childItem);
441 if (RefreshTreeItem(hwndTV, childItem) == FALSE) {
442 SendMessageW(hwndTV, TVM_DELETEITEM, 0, (LPARAM)childItem);
444 childItem = nextItem;
450 BOOL RefreshTreeView(HWND hwndTV)
453 HTREEITEM hSelectedItem;
458 hSelectedItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CARET, 0);
459 hcursorOld = SetCursor(LoadCursorW(NULL, (LPCWSTR)IDC_WAIT));
460 SendMessageW(hwndTV, WM_SETREDRAW, FALSE, 0);
462 hRoot = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_ROOT, 0);
463 hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hRoot);
465 RefreshTreeItem(hwndTV, hItem);
466 hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)hItem);
469 SendMessageW(hwndTV, WM_SETREDRAW, TRUE, 0);
470 InvalidateRect(hwndTV, NULL, FALSE);
471 SetCursor(hcursorOld);
473 /* We reselect the currently selected node, this will prompt a refresh of the listview. */
474 SendMessageW(hwndTV, TVM_SELECTITEM, TVGN_CARET, (LPARAM)hSelectedItem);
478 HTREEITEM InsertNode(HWND hwndTV, HTREEITEM hItem, LPWSTR name)
480 WCHAR buf[MAX_NEW_KEY_LEN];
481 HTREEITEM hNewItem = 0;
484 if (!hItem) hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CARET, 0);
485 if (!hItem) return FALSE;
486 if (SendMessageW(hwndTV, TVM_GETITEMSTATE, (WPARAM)hItem, TVIS_EXPANDEDONCE)) {
487 hNewItem = AddEntryToTree(hwndTV, hItem, name, 0, 0);
489 item.mask = TVIF_CHILDREN | TVIF_HANDLE;
491 if (!TreeView_GetItemW(hwndTV, &item)) return FALSE;
493 if (!TreeView_SetItemW(hwndTV, &item)) return FALSE;
495 SendMessageW(hwndTV, TVM_EXPAND, TVE_EXPAND, (LPARAM)hItem );
497 for(hNewItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)hItem); hNewItem;
498 hNewItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_NEXT, (LPARAM)hNewItem)) {
499 item.mask = TVIF_HANDLE | TVIF_TEXT;
500 item.hItem = hNewItem;
502 item.cchTextMax = COUNT_OF(buf);
503 if (!TreeView_GetItemW(hwndTV, &item)) continue;
504 if (lstrcmpW(name, item.pszText) == 0) break;
508 SendMessageW(hwndTV, TVM_SELECTITEM, TVGN_CARET, (LPARAM)hNewItem);
513 HWND StartKeyRename(HWND hwndTV)
517 if(!(hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CARET, 0))) return 0;
518 return (HWND)SendMessageW(hwndTV, TVM_EDITLABELW, 0, (LPARAM)hItem);
521 static BOOL InitTreeViewItems(HWND hwndTV, LPWSTR pHostName)
523 TVINSERTSTRUCTW tvins;
525 static WCHAR hkcr[] = {'H','K','E','Y','_','C','L','A','S','S','E','S','_','R','O','O','T',0},
526 hkcu[] = {'H','K','E','Y','_','C','U','R','R','E','N','T','_','U','S','E','R',0},
527 hklm[] = {'H','K','E','Y','_','L','O','C','A','L','_','M','A','C','H','I','N','E',0},
528 hku[] = {'H','K','E','Y','_','U','S','E','R','S',0},
529 hkcc[] = {'H','K','E','Y','_','C','U','R','R','E','N','T','_','C','O','N','F','I','G',0},
530 hkdd[] = {'H','K','E','Y','_','D','Y','N','_','D','A','T','A',0};
532 tvins.u.item.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM;
533 /* Set the text of the item. */
534 tvins.u.item.pszText = pHostName;
535 tvins.u.item.cchTextMax = lstrlenW(pHostName);
536 /* Assume the item is not a parent item, so give it an image. */
537 tvins.u.item.iImage = Image_Root;
538 tvins.u.item.iSelectedImage = Image_Root;
539 tvins.u.item.cChildren = 5;
540 /* Save the heading level in the item's application-defined data area. */
541 tvins.u.item.lParam = 0;
542 tvins.hInsertAfter = TVI_FIRST;
543 tvins.hParent = TVI_ROOT;
544 /* Add the item to the tree view control. */
545 if (!(hRoot = TreeView_InsertItemW(hwndTV, &tvins))) return FALSE;
547 if (!AddEntryToTree(hwndTV, hRoot, hkcr, HKEY_CLASSES_ROOT, 1)) return FALSE;
548 if (!AddEntryToTree(hwndTV, hRoot, hkcu, HKEY_CURRENT_USER, 1)) return FALSE;
549 if (!AddEntryToTree(hwndTV, hRoot, hklm, HKEY_LOCAL_MACHINE, 1)) return FALSE;
550 if (!AddEntryToTree(hwndTV, hRoot, hku, HKEY_USERS, 1)) return FALSE;
551 if (!AddEntryToTree(hwndTV, hRoot, hkcc, HKEY_CURRENT_CONFIG, 1)) return FALSE;
552 if (!AddEntryToTree(hwndTV, hRoot, hkdd, HKEY_DYN_DATA, 1)) return FALSE;
554 /* expand and select host name */
555 SendMessageW(hwndTV, TVM_EXPAND, TVE_EXPAND, (LPARAM)hRoot );
556 SendMessageW(hwndTV, TVM_SELECTITEM, TVGN_CARET, (LPARAM)hRoot);
562 * InitTreeViewImageLists - creates an image list, adds three bitmaps
563 * to it, and associates the image list with a tree view control.
564 * Returns TRUE if successful, or FALSE otherwise.
565 * hwndTV - handle to the tree view control.
567 static BOOL InitTreeViewImageLists(HWND hwndTV)
569 HIMAGELIST himl; /* handle to image list */
570 HICON hico; /* handle to icon */
572 /* Create the image list. */
573 if ((himl = ImageList_Create(CX_ICON, CY_ICON,
574 ILC_MASK, 0, NUM_ICONS)) == NULL)
577 /* Add the open file, closed file, and document bitmaps. */
578 hico = LoadIconW(hInst, MAKEINTRESOURCEW(IDI_OPEN_FILE));
579 Image_Open = ImageList_AddIcon(himl, hico);
581 hico = LoadIconW(hInst, MAKEINTRESOURCEW(IDI_CLOSED_FILE));
582 Image_Closed = ImageList_AddIcon(himl, hico);
584 hico = LoadIconW(hInst, MAKEINTRESOURCEW(IDI_ROOT));
585 Image_Root = ImageList_AddIcon(himl, hico);
587 /* Fail if not all of the images were added. */
588 if (ImageList_GetImageCount(himl) < NUM_ICONS)
593 /* Associate the image list with the tree view control. */
594 SendMessageW(hwndTV, TVM_SETIMAGELIST, TVSIL_NORMAL, (LPARAM)himl);
599 BOOL UpdateExpandingTree(HWND hwndTV, HTREEITEM hItem, int state)
601 DWORD dwCount, dwIndex, dwMaxSubKeyLen;
602 HKEY hRoot, hNewKey, hKey;
609 static int expanding;
610 if (expanding) return FALSE;
611 if (state & TVIS_EXPANDEDONCE ) {
615 hcursorOld = SetCursor(LoadCursorW(NULL, (LPCWSTR)IDC_WAIT));
616 SendMessageW(hwndTV, WM_SETREDRAW, FALSE, 0);
618 keyPath = GetItemPath(hwndTV, hItem, &hRoot);
619 if (!keyPath) goto done;
622 errCode = RegOpenKeyExW(hRoot, keyPath, 0, KEY_READ, &hNewKey);
623 if (errCode != ERROR_SUCCESS) goto done;
628 errCode = RegQueryInfoKeyW(hNewKey, 0, 0, 0, &dwCount, &dwMaxSubKeyLen, 0, 0, 0, 0, 0, 0);
629 if (errCode != ERROR_SUCCESS) goto done;
630 dwMaxSubKeyLen++; /* account for the \0 terminator */
631 Name = HeapAlloc(GetProcessHeap(), 0, dwMaxSubKeyLen * sizeof(WCHAR));
632 if (!Name) goto done;
634 for (dwIndex = 0; dwIndex < dwCount; dwIndex++) {
635 DWORD cName = dwMaxSubKeyLen, dwSubCount;
637 errCode = RegEnumKeyExW(hNewKey, dwIndex, Name, &cName, 0, 0, 0, 0);
638 if (errCode != ERROR_SUCCESS) continue;
639 errCode = RegOpenKeyExW(hNewKey, Name, 0, KEY_QUERY_VALUE, &hKey);
640 if (errCode == ERROR_SUCCESS) {
641 errCode = RegQueryInfoKeyW(hKey, 0, 0, 0, &dwSubCount, 0, 0, 0, 0, 0, 0, 0);
644 if (errCode != ERROR_SUCCESS) dwSubCount = 0;
645 AddEntryToTree(hwndTV, hItem, Name, NULL, dwSubCount);
647 RegCloseKey(hNewKey);
648 HeapFree(GetProcessHeap(), 0, Name);
651 item.mask = TVIF_STATE;
653 item.stateMask = TVIS_EXPANDEDONCE;
654 item.state = TVIS_EXPANDEDONCE;
655 SendMessageW(hwndTV, TVM_SETITEMW, 0, (LPARAM)&item);
656 SendMessageW(hwndTV, WM_SETREDRAW, TRUE, 0);
657 SetCursor(hcursorOld);
659 HeapFree(GetProcessHeap(), 0, keyPath);
664 BOOL OnTreeExpanding(HWND hwndTV, NMTREEVIEWW* pnmtv)
666 return UpdateExpandingTree(hwndTV, pnmtv->itemNew.hItem, pnmtv->itemNew.state);
671 * CreateTreeView - creates a tree view control.
672 * Returns the handle to the new control if successful, or NULL otherwise.
673 * hwndParent - handle to the control's parent window.
675 HWND CreateTreeView(HWND hwndParent, LPWSTR pHostName, UINT id)
679 WCHAR TreeView[] = {'T','r','e','e',' ','V','i','e','w',0};
681 /* Get the dimensions of the parent window's client area, and create the tree view control. */
682 GetClientRect(hwndParent, &rcClient);
683 hwndTV = CreateWindowExW(WS_EX_CLIENTEDGE, WC_TREEVIEWW, TreeView,
684 WS_VISIBLE | WS_CHILD | WS_TABSTOP | TVS_HASLINES | TVS_HASBUTTONS | TVS_LINESATROOT,
685 0, 0, rcClient.right, rcClient.bottom,
686 hwndParent, ULongToHandle(id), hInst, NULL);
687 SendMessageW(hwndTV, TVM_SETUNICODEFORMAT, TRUE, 0);
688 /* Initialize the image list, and add items to the control. */
689 if (!InitTreeViewImageLists(hwndTV) || !InitTreeViewItems(hwndTV, pHostName)) {
690 DestroyWindow(hwndTV);