programs/regedit/childwnd.c

   1 /*
   2  * Regedit child window
   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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define WIN32_LEAN_AND_MEAN     /* Exclude rarely-used stuff from Windows headers */
  22 #include <windows.h>
  23 #include <commctrl.h>
  24
  25 #include "main.h"
  26
  27 #include "wine/debug.h"
  28 #include "wine/heap.h"
  29
  30 WINE_DEFAULT_DEBUG_CHANNEL(regedit);
  31
  32 ChildWnd* g_pChildWnd;
  33 static int last_split;
  34
  35 static const WCHAR wszLastKey[] = L"LastKey";
  36 static const WCHAR wszKeyName[] = L"Software\\Microsoft\\Windows\\CurrentVersion\\Applets\\Regedit";
  37
  38 /*******************************************************************************
  39  * Local module support methods
  40  */
  41
  42 static LPCWSTR GetRootKeyName(HKEY hRootKey)
  43 {
  44     if(hRootKey == HKEY_CLASSES_ROOT)
  45         return reg_class_namesW[INDEX_HKEY_CLASSES_ROOT];
  46     if(hRootKey == HKEY_CURRENT_USER)
  47         return reg_class_namesW[INDEX_HKEY_CURRENT_USER];
  48     if(hRootKey == HKEY_LOCAL_MACHINE)
  49         return reg_class_namesW[INDEX_HKEY_LOCAL_MACHINE];
  50     if(hRootKey == HKEY_USERS)
  51         return reg_class_namesW[INDEX_HKEY_USERS];
  52     if(hRootKey == HKEY_CURRENT_CONFIG)
  53         return reg_class_namesW[INDEX_HKEY_CURRENT_CONFIG];
  54     if(hRootKey == HKEY_DYN_DATA)
  55         return reg_class_namesW[INDEX_HKEY_DYN_DATA];
  56     else
  57         return L"Unknown HKEY. Please report.";
  58 }
  59
  60 static void draw_splitbar(HWND hWnd, int x)
  61 {
  62     RECT rt;
  63     HDC hdc = GetDC(hWnd);
  64
  65     GetClientRect(hWnd, &rt);
  66     rt.left = x - SPLIT_WIDTH/2;
  67     rt.right = x + SPLIT_WIDTH/2+1;
  68     InvertRect(hdc, &rt);
  69     ReleaseDC(hWnd, hdc);
  70 }
  71
  72 static void ResizeWnd(int cx, int cy)
  73 {
  74     HDWP hdwp = BeginDeferWindowPos(2);
  75     RECT rt = {0, 0, cx, cy};
  76
  77     cx = g_pChildWnd->nSplitPos + SPLIT_WIDTH/2;
  78     DeferWindowPos(hdwp, g_pChildWnd->hTreeWnd, 0, rt.left, rt.top, g_pChildWnd->nSplitPos-SPLIT_WIDTH/2-rt.left, rt.bottom-rt.top, SWP_NOZORDER|SWP_NOACTIVATE);
  79     DeferWindowPos(hdwp, g_pChildWnd->hListWnd, 0, rt.left+cx  , rt.top, rt.right-cx, rt.bottom-rt.top, SWP_NOZORDER|SWP_NOACTIVATE);
  80     EndDeferWindowPos(hdwp);
  81 }
  82
  83 static void OnPaint(HWND hWnd)
  84 {
  85     PAINTSTRUCT ps;
  86     RECT rt;
  87
  88     GetClientRect(hWnd, &rt);
  89     BeginPaint(hWnd, &ps);
  90     FillRect(ps.hdc, &rt, GetSysColorBrush(COLOR_BTNFACE));
  91     EndPaint(hWnd, &ps);
  92 }
  93
  94 static LPWSTR CombinePaths(LPCWSTR pPaths[], int nPaths) {
  95     int i, len, pos;
  96     LPWSTR combined;
  97     for (i=0, len=0; i<nPaths; i++) {
  98         if (pPaths[i] && *pPaths[i]) {
  99             len += lstrlenW(pPaths[i])+1;
 100         }
 101     }
 102     combined = heap_xalloc(len * sizeof(WCHAR));
 103     *combined = '\0';
 104     for (i=0, pos=0; i<nPaths; i++) {
 105         if (pPaths[i] && *pPaths[i]) {
 106             int llen = lstrlenW(pPaths[i]);
 107             if (!*combined)
 108                 lstrcpyW(combined, pPaths[i]);
 109             else {
 110                 combined[pos++] = '\\';
 111                 lstrcpyW(combined+pos, pPaths[i]);
 112             }
 113             pos += llen;
 114         }
 115     }
 116     return combined;
 117 }
 118
 119 static LPWSTR GetPathRoot(HWND hwndTV, HTREEITEM hItem, BOOL bFull) {
 120     LPCWSTR parts[2] = {0,0};
 121     WCHAR text[260];
 122     HKEY hRootKey = NULL;
 123     if (!hItem)
 124         hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CARET, 0);
 125     heap_free(GetItemPath(hwndTV, hItem, &hRootKey));
 126     if (!bFull && !hRootKey)
 127         return NULL;
 128     if (hRootKey)
 129         parts[1] = GetRootKeyName(hRootKey);
 130     if (bFull) {
 131         DWORD dwSize = ARRAY_SIZE(text);
 132         GetComputerNameW(text, &dwSize);
 133         parts[0] = text;
 134     }
 135     return CombinePaths(parts, 2);
 136 }
 137
 138 LPWSTR GetItemFullPath(HWND hwndTV, HTREEITEM hItem, BOOL bFull) {
 139     LPWSTR parts[2];
 140     LPWSTR ret;
 141     HKEY hRootKey = NULL;
 142
 143     parts[0] = GetPathRoot(hwndTV, hItem, bFull);
 144     parts[1] = GetItemPath(hwndTV, hItem, &hRootKey);
 145     ret = CombinePaths((LPCWSTR *)parts, 2);
 146     heap_free(parts[0]);
 147     heap_free(parts[1]);
 148     return ret;
 149 }
 150
 151 static void OnTreeSelectionChanged(HWND hwndTV, HWND hwndLV, HTREEITEM hItem, BOOL bRefreshLV)
 152 {
 153     if (bRefreshLV) {
 154         LPWSTR keyPath;
 155         HKEY hRootKey = NULL;
 156         HTREEITEM rootitem;
 157
 158         rootitem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 159         if (rootitem == hItem)
 160         {
 161             SendMessageW(hwndLV, LVM_DELETEALLITEMS, 0, 0);
 162             UpdateStatusBar();
 163             return;
 164         }
 165
 166         keyPath = GetItemPath(hwndTV, hItem, &hRootKey);
 167         RefreshListView(hwndLV, hRootKey, keyPath, NULL);
 168         heap_free(keyPath);
 169     }
 170     UpdateStatusBar();
 171 }
 172
 173 /*******************************************************************************
 174  * finish_splitbar [internal]
 175  *
 176  * make the splitbar invisible and resize the windows
 177  * (helper for ChildWndProc)
 178  */
 179 static void finish_splitbar(HWND hWnd, int x)
 180 {
 181     RECT rt;
 182
 183     draw_splitbar(hWnd, last_split);
 184     last_split = -1;
 185     GetClientRect(hWnd, &rt);
 186     g_pChildWnd->nSplitPos = x;
 187     ResizeWnd(rt.right, rt.bottom);
 188     ReleaseCapture();
 189 }
 190
 191 /*******************************************************************************
 192  *
 193  *  FUNCTION: _CmdWndProc(HWND, unsigned, WORD, LONG)
 194  *
 195  *  PURPOSE:  Processes WM_COMMAND messages for the main frame window.
 196  *
 197  */
 198
 199 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 200 {
 201     switch (LOWORD(wParam)) {
 202         /* Parse the menu selections: */
 203     case ID_REGISTRY_EXIT:
 204         DestroyWindow(hWnd);
 205         break;
 206     case ID_VIEW_REFRESH:
 207         WINE_TRACE("Is this ever called or is it just dead code?\n");
 208         /* TODO */
 209         break;
 210     case ID_SWITCH_PANELS:
 211         g_pChildWnd->nFocusPanel = !g_pChildWnd->nFocusPanel;
 212         SetFocus(g_pChildWnd->nFocusPanel? g_pChildWnd->hListWnd: g_pChildWnd->hTreeWnd);
 213         break;
 214     default:
 215         return FALSE;
 216     }
 217     return TRUE;
 218 }
 219
 220 /*******************************************************************************
 221  * get_last_key [internal]
 222  *
 223  * open last key
 224  *
 225  */
 226 static void get_last_key(HWND hwndTV)
 227 {
 228     HKEY hkey;
 229     WCHAR wszVal[KEY_MAX_LEN];
 230     DWORD dwSize = sizeof(wszVal);
 231
 232     if (RegCreateKeyExW(HKEY_CURRENT_USER, wszKeyName, 0, NULL, 0, KEY_READ, NULL, &hkey, NULL) == ERROR_SUCCESS)
 233     {
 234         HTREEITEM selection = NULL;
 235         if (RegQueryValueExW(hkey, wszLastKey, NULL, NULL, (LPBYTE)wszVal, &dwSize) == ERROR_SUCCESS)
 236         {
 237             if (lstrcmpW(wszVal, g_pChildWnd->szPath))
 238                 selection = FindPathInTree(hwndTV, wszVal);
 239         }
 240
 241         if(!selection)
 242         {
 243             selection = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 244             SendMessageW(hwndTV, TVM_EXPAND, TVE_EXPAND, (LPARAM)selection );
 245         }
 246         else
 247             SendMessageW(hwndTV, TVM_SELECTITEM, TVGN_CARET, (LPARAM)selection);
 248
 249         RegCloseKey(hkey);
 250     }
 251 }
 252
 253 /*******************************************************************************
 254  * set_last_key [internal]
 255  *
 256  * save last key
 257  *
 258  */
 259 static void set_last_key(HWND hwndTV)
 260 {
 261     HKEY hkey;
 262
 263     if (RegCreateKeyExW(HKEY_CURRENT_USER, wszKeyName, 0, NULL, 0, KEY_WRITE, NULL, &hkey, NULL) == ERROR_SUCCESS)
 264     {
 265         HTREEITEM selection = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_CARET, 0);
 266         HTREEITEM root = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 267         WCHAR *value;
 268
 269         if (selection == root)
 270             value = g_pChildWnd->szPath;
 271         else
 272             value = GetItemFullPath(g_pChildWnd->hTreeWnd, selection, FALSE);
 273         RegSetValueExW(hkey, wszLastKey, 0, REG_SZ, (LPBYTE)value, (lstrlenW(value) + 1) * sizeof(WCHAR));
 274         if (selection != root)
 275             heap_free(value);
 276         RegCloseKey(hkey);
 277     }
 278 }
 279
 280 static int treeview_notify(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 281 {
 282     switch (((NMHDR *)lParam)->code)
 283     {
 284         case NM_SETFOCUS:
 285             g_pChildWnd->nFocusPanel = 0;
 286             break;
 287         case TVN_BEGINLABELEDITW:
 288         {
 289             HKEY hRootKey;
 290             WCHAR *path;
 291
 292             if (!GetWindowLongPtrW(g_pChildWnd->hTreeWnd, GWLP_USERDATA))
 293                 return 1;
 294
 295             path = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hRootKey);
 296             if (!path || !*path)
 297                 return 1;
 298             return 0;
 299         }
 300         case TVN_ENDLABELEDITW:
 301         {
 302             HKEY hRootKey;
 303             NMTVDISPINFOW *dispInfo = (NMTVDISPINFOW *)lParam;
 304             WCHAR *path = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hRootKey);
 305             BOOL res = RenameKey(hWnd, hRootKey, path, dispInfo->item.pszText);
 306
 307             heap_free(path);
 308
 309             if (res)
 310             {
 311                 TVITEMW item;
 312
 313                 item.mask = TVIF_HANDLE | TVIF_TEXT;
 314                 item.hItem = dispInfo->item.hItem;
 315                 item.pszText = dispInfo->item.pszText;
 316                 SendMessageW(g_pChildWnd->hTreeWnd, TVM_SETITEMW, 0, (LPARAM)&item);
 317
 318                 path = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hRootKey);
 319                 update_listview_path(path);
 320                 heap_free(path);
 321
 322                 UpdateStatusBar();
 323             }
 324
 325             SetWindowLongPtrW(g_pChildWnd->hTreeWnd, GWLP_USERDATA, 0);
 326             return res;
 327         }
 328         case TVN_ITEMEXPANDINGW:
 329             return !OnTreeExpanding(g_pChildWnd->hTreeWnd, (NMTREEVIEWW *)lParam);
 330         case TVN_SELCHANGEDW:
 331             OnTreeSelectionChanged(g_pChildWnd->hTreeWnd, g_pChildWnd->hListWnd,
 332                                    ((NMTREEVIEWW *)lParam)->itemNew.hItem, TRUE);
 333             break;
 334     }
 335     return 0;
 336 }
 337
 338 static int listview_notify(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 339 {
 340     switch (((NMHDR *)lParam)->code)
 341     {
 342         case NM_DBLCLK:
 343         {
 344             NMITEMACTIVATE *nmitem = (NMITEMACTIVATE *)lParam;
 345
 346             if (nmitem->iItem != -1)
 347             {
 348                 LVITEMW item;
 349
 350                 item.state = 0;
 351                 item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 352                 SendMessageW(g_pChildWnd->hListWnd, LVM_SETITEMSTATE, (UINT)-1, (LPARAM)&item);
 353
 354                 item.state = LVIS_FOCUSED | LVIS_SELECTED;
 355                 item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 356                 SendMessageW(g_pChildWnd->hListWnd, LVM_SETITEMSTATE, nmitem->iItem, (LPARAM)&item);
 357
 358                 SendMessageW(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 359             }
 360             break;
 361         }
 362         case NM_RETURN:
 363         {
 364             int cnt = SendMessageW(g_pChildWnd->hListWnd, LVM_GETNEXTITEM, -1,
 365                                    MAKELPARAM(LVNI_FOCUSED | LVNI_SELECTED, 0));
 366             if (cnt != -1)
 367                 SendMessageW(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 368             break;
 369         }
 370         case NM_SETFOCUS:
 371             g_pChildWnd->nFocusPanel = 1;
 372             break;
 373         case LVN_BEGINLABELEDITW:
 374             if (!((NMLVDISPINFOW *)lParam)->item.iItem)
 375                 return 1;
 376             return 0;
 377         case LVN_COLUMNCLICK:
 378             if (g_columnToSort == ((NMLISTVIEW *)lParam)->iSubItem)
 379                 g_invertSort = !g_invertSort;
 380             else
 381             {
 382                 g_columnToSort = ((NMLISTVIEW *)lParam)->iSubItem;
 383                 g_invertSort = FALSE;
 384             }
 385
 386             SendMessageW(g_pChildWnd->hListWnd, LVM_SORTITEMS,
 387                         (WPARAM)g_pChildWnd->hListWnd, (LPARAM)CompareFunc);
 388             break;
 389         case LVN_DELETEITEM:
 390         {
 391             NMLISTVIEW *nmlv = (NMLISTVIEW *)lParam;
 392             LINE_INFO *info = (LINE_INFO *)nmlv->lParam;
 393
 394             heap_free(info->name);
 395             heap_free(info->val);
 396             heap_free(info);
 397             break;
 398         }
 399         case LVN_ENDLABELEDITW:
 400         {
 401             NMLVDISPINFOW *dispInfo = (NMLVDISPINFOW *)lParam;
 402             WCHAR *oldName = GetItemText(g_pChildWnd->hListWnd, dispInfo->item.iItem);
 403             LONG ret;
 404
 405             if (!oldName) return -1; /* cannot rename a default value */
 406             ret = RenameValue(g_pChildWnd->hListWnd, g_currentRootKey, g_currentPath,
 407                               oldName, dispInfo->item.pszText);
 408             if (ret)
 409             {
 410                 dispInfo->item.iSubItem = 0;
 411                 SendMessageW(g_pChildWnd->hListWnd, LVM_SETITEMTEXTW,
 412                              dispInfo->item.iItem, (LPARAM)&dispInfo->item);
 413             }
 414
 415             heap_free(oldName);
 416             return 0;
 417         }
 418         case LVN_GETDISPINFOW:
 419             OnGetDispInfo((NMLVDISPINFOW *)lParam);
 420             break;
 421     }
 422     return 0;
 423 }
 424
 425 #define GET_X_LPARAM(lp) ((int)(short)LOWORD(lp))
 426 #define GET_Y_LPARAM(lp) ((int)(short)HIWORD(lp))
 427
 428 /*******************************************************************************
 429  *
 430  *  FUNCTION: ChildWndProc(HWND, unsigned, WORD, LONG)
 431  *
 432  *  PURPOSE:  Processes messages for the child windows.
 433  *
 434  *  WM_COMMAND  - process the application menu
 435  *  WM_PAINT    - Paint the main window
 436  *  WM_DESTROY  - post a quit message and return
 437  *
 438  */
 439 LRESULT CALLBACK ChildWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 440 {
 441     switch (message) {
 442     case WM_CREATE:
 443         g_pChildWnd = heap_xalloc(sizeof(ChildWnd));
 444         if (!g_pChildWnd) return 0;
 445         LoadStringW(hInst, IDS_REGISTRY_ROOT_NAME, g_pChildWnd->szPath, MAX_PATH);
 446         g_pChildWnd->nSplitPos = 250;
 447         g_pChildWnd->hWnd = hWnd;
 448         g_pChildWnd->hTreeWnd = CreateTreeView(hWnd, g_pChildWnd->szPath, TREE_WINDOW);
 449         g_pChildWnd->hListWnd = CreateListView(hWnd, LIST_WINDOW/*, g_pChildWnd->szPath*/);
 450         g_pChildWnd->nFocusPanel = 1;
 451         SetFocus(g_pChildWnd->hTreeWnd);
 452         get_last_key(g_pChildWnd->hTreeWnd);
 453         break;
 454     case WM_COMMAND:
 455         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 456             goto def;
 457         }
 458         break;
 459     case WM_PAINT:
 460         OnPaint(hWnd);
 461         return 0;
 462     case WM_SETCURSOR:
 463         if (LOWORD(lParam) == HTCLIENT) {
 464             POINT pt;
 465             GetCursorPos(&pt);
 466             ScreenToClient(hWnd, &pt);
 467             if (pt.x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && pt.x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 468                 SetCursor(LoadCursorW(0, (LPCWSTR)IDC_SIZEWE));
 469                 return TRUE;
 470             }
 471         }
 472         goto def;
 473     case WM_DESTROY:
 474         set_last_key(g_pChildWnd->hTreeWnd);
 475         heap_free(g_pChildWnd);
 476         g_pChildWnd = NULL;
 477         PostQuitMessage(0);
 478         break;
 479     case WM_LBUTTONDOWN: {
 480             RECT rt;
 481             int x = (short)LOWORD(lParam);
 482             GetClientRect(hWnd, &rt);
 483             if (x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 484                 last_split = g_pChildWnd->nSplitPos;
 485                 draw_splitbar(hWnd, last_split);
 486                 SetCapture(hWnd);
 487             }
 488             break;
 489         }
 490
 491     /* WM_RBUTTONDOWN sets the splitbar the same way as WM_LBUTTONUP */
 492     case WM_LBUTTONUP:
 493     case WM_RBUTTONDOWN:
 494         if (GetCapture() == hWnd) {
 495             finish_splitbar(hWnd, LOWORD(lParam));
 496         }
 497         break;
 498
 499     case WM_CAPTURECHANGED:
 500         if (GetCapture()==hWnd && last_split>=0)
 501             draw_splitbar(hWnd, last_split);
 502         break;
 503
 504     case WM_CONTEXTMENU:
 505     {
 506         POINT pt = {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
 507         short int menu_id = -1;
 508
 509         if ((HWND)wParam == g_pChildWnd->hTreeWnd)
 510         {
 511             TVHITTESTINFO ht;
 512
 513             ht.pt = pt;
 514             ScreenToClient(g_pChildWnd->hTreeWnd, &ht.pt);
 515
 516             if (SendMessageW(g_pChildWnd->hTreeWnd, TVM_HITTEST, 0, (LPARAM)&ht))
 517             {
 518                 HTREEITEM root;
 519
 520                 SendMessageW(g_pChildWnd->hTreeWnd, TVM_SELECTITEM, TVGN_CARET, (LPARAM)ht.hItem);
 521                 root = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 522                 menu_id = (ht.hItem == root) ? PM_COMPUTER : PM_TREEVIEW;
 523             }
 524         }
 525         else
 526         {
 527             int sel = SendMessageW(g_pChildWnd->hListWnd, LVM_GETNEXTITEM, -1,
 528                                    MAKELPARAM(LVNI_SELECTED, 0));
 529             menu_id = (sel == -1) ? PM_NEW_VALUE : PM_MODIFY_VALUE;
 530         }
 531
 532         TrackPopupMenu(GetSubMenu(hPopupMenus, menu_id), TPM_RIGHTBUTTON,
 533                        pt.x, pt.y, 0, hFrameWnd, NULL);
 534         break;
 535     }
 536
 537     case WM_KEYDOWN:
 538         if (wParam == VK_ESCAPE)
 539             if (GetCapture() == hWnd) {
 540                 RECT rt;
 541                 draw_splitbar(hWnd, last_split);
 542                 GetClientRect(hWnd, &rt);
 543                 ResizeWnd(rt.right, rt.bottom);
 544                 last_split = -1;
 545                 ReleaseCapture();
 546                 SetCursor(LoadCursorW(0, (LPCWSTR)IDC_ARROW));
 547             }
 548         break;
 549
 550     case WM_MOUSEMOVE:
 551         if (GetCapture() == hWnd) {
 552             RECT rt;
 553             int x = LOWORD(lParam);
 554             HDC hdc = GetDC(hWnd);
 555             GetClientRect(hWnd, &rt);
 556             rt.left = last_split-SPLIT_WIDTH/2;
 557             rt.right = last_split+SPLIT_WIDTH/2+1;
 558             InvertRect(hdc, &rt);
 559             last_split = x;
 560             rt.left = x-SPLIT_WIDTH/2;
 561             rt.right = x+SPLIT_WIDTH/2+1;
 562             InvertRect(hdc, &rt);
 563             ReleaseDC(hWnd, hdc);
 564         }
 565         break;
 566
 567     case WM_SETFOCUS:
 568         if (g_pChildWnd != NULL) {
 569             SetFocus(g_pChildWnd->nFocusPanel? g_pChildWnd->hListWnd: g_pChildWnd->hTreeWnd);
 570         }
 571         break;
 572
 573     case WM_TIMER:
 574         break;
 575
 576     case WM_NOTIFY:
 577         if (wParam == TREE_WINDOW && g_pChildWnd)
 578             return treeview_notify(hWnd, message, wParam, lParam);
 579         else if (wParam == LIST_WINDOW && g_pChildWnd)
 580             return listview_notify(hWnd, message, wParam, lParam);
 581         break;
 582
 583     case WM_SIZE:
 584         if (wParam != SIZE_MINIMIZED && g_pChildWnd != NULL) {
 585             ResizeWnd(LOWORD(lParam), HIWORD(lParam));
 586         }
 587         /* fall through */
 588 default: def:
 589         return DefWindowProcW(hWnd, message, wParam, lParam);
 590     }
 591     return 0;
 592 }