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 #include "wine/unicode.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(regedit);
  32
  33 ChildWnd* g_pChildWnd;
  34 static int last_split;
  35
  36 static const WCHAR wszLastKey[] = {'L','a','s','t','K','e','y',0};
  37 static const WCHAR wszKeyName[] = {'S','o','f','t','w','a','r','e','\\',
  38                                    'M','i','c','r','o','s','o','f','t','\\',
  39                                    'W','i','n','d','o','w','s','\\',
  40                                    'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
  41                                    'A','p','p','l','e','t','s','\\','R','e','g','e','d','i','t',0};
  42
  43 /*******************************************************************************
  44  * Local module support methods
  45  */
  46
  47 static LPCWSTR GetRootKeyName(HKEY hRootKey)
  48 {
  49     if(hRootKey == HKEY_CLASSES_ROOT)
  50         return reg_class_namesW[INDEX_HKEY_CLASSES_ROOT];
  51     if(hRootKey == HKEY_CURRENT_USER)
  52         return reg_class_namesW[INDEX_HKEY_CURRENT_USER];
  53     if(hRootKey == HKEY_LOCAL_MACHINE)
  54         return reg_class_namesW[INDEX_HKEY_LOCAL_MACHINE];
  55     if(hRootKey == HKEY_USERS)
  56         return reg_class_namesW[INDEX_HKEY_USERS];
  57     if(hRootKey == HKEY_CURRENT_CONFIG)
  58         return reg_class_namesW[INDEX_HKEY_CURRENT_CONFIG];
  59     if(hRootKey == HKEY_DYN_DATA)
  60         return reg_class_namesW[INDEX_HKEY_DYN_DATA];
  61     else
  62     {
  63         static const WCHAR unknown_key[] = {'U','N','K','N','O','W','N',' ','H','K','E','Y',',',' ',
  64                                             'P','L','E','A','S','E',' ','R','E','P','O','R','T',0};
  65         return unknown_key;
  66     }
  67 }
  68
  69 static void draw_splitbar(HWND hWnd, int x)
  70 {
  71     RECT rt;
  72     HDC hdc = GetDC(hWnd);
  73
  74     GetClientRect(hWnd, &rt);
  75     rt.left = x - SPLIT_WIDTH/2;
  76     rt.right = x + SPLIT_WIDTH/2+1;
  77     InvertRect(hdc, &rt);
  78     ReleaseDC(hWnd, hdc);
  79 }
  80
  81 static void ResizeWnd(int cx, int cy)
  82 {
  83     HDWP hdwp = BeginDeferWindowPos(2);
  84     RECT rt = {0, 0, cx, cy};
  85
  86     cx = g_pChildWnd->nSplitPos + SPLIT_WIDTH/2;
  87     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);
  88     DeferWindowPos(hdwp, g_pChildWnd->hListWnd, 0, rt.left+cx  , rt.top, rt.right-cx, rt.bottom-rt.top, SWP_NOZORDER|SWP_NOACTIVATE);
  89     EndDeferWindowPos(hdwp);
  90 }
  91
  92 static void OnPaint(HWND hWnd)
  93 {
  94     PAINTSTRUCT ps;
  95     RECT rt;
  96
  97     GetClientRect(hWnd, &rt);
  98     BeginPaint(hWnd, &ps);
  99     FillRect(ps.hdc, &rt, GetSysColorBrush(COLOR_BTNFACE));
 100     EndPaint(hWnd, &ps);
 101 }
 102
 103 static LPWSTR CombinePaths(LPCWSTR pPaths[], int nPaths) {
 104     int i, len, pos;
 105     LPWSTR combined;
 106     for (i=0, len=0; i<nPaths; i++) {
 107         if (pPaths[i] && *pPaths[i]) {
 108             len += lstrlenW(pPaths[i])+1;
 109         }
 110     }
 111     combined = heap_xalloc(len * sizeof(WCHAR));
 112     *combined = '\0';
 113     for (i=0, pos=0; i<nPaths; i++) {
 114         if (pPaths[i] && *pPaths[i]) {
 115             int llen = lstrlenW(pPaths[i]);
 116             if (!*combined)
 117                 lstrcpyW(combined, pPaths[i]);
 118             else {
 119                 combined[pos++] = '\\';
 120                 lstrcpyW(combined+pos, pPaths[i]);
 121             }
 122             pos += llen;
 123         }
 124     }
 125     return combined;
 126 }
 127
 128 static LPWSTR GetPathRoot(HWND hwndTV, HTREEITEM hItem, BOOL bFull) {
 129     LPCWSTR parts[2] = {0,0};
 130     WCHAR text[260];
 131     HKEY hRootKey = NULL;
 132     if (!hItem)
 133         hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CARET, 0);
 134     heap_free(GetItemPath(hwndTV, hItem, &hRootKey));
 135     if (!bFull && !hRootKey)
 136         return NULL;
 137     if (hRootKey)
 138         parts[1] = GetRootKeyName(hRootKey);
 139     if (bFull) {
 140         DWORD dwSize = ARRAY_SIZE(text);
 141         GetComputerNameW(text, &dwSize);
 142         parts[0] = text;
 143     }
 144     return CombinePaths(parts, 2);
 145 }
 146
 147 LPWSTR GetItemFullPath(HWND hwndTV, HTREEITEM hItem, BOOL bFull) {
 148     LPWSTR parts[2];
 149     LPWSTR ret;
 150     HKEY hRootKey = NULL;
 151
 152     parts[0] = GetPathRoot(hwndTV, hItem, bFull);
 153     parts[1] = GetItemPath(hwndTV, hItem, &hRootKey);
 154     ret = CombinePaths((LPCWSTR *)parts, 2);
 155     heap_free(parts[0]);
 156     heap_free(parts[1]);
 157     return ret;
 158 }
 159
 160 static void OnTreeSelectionChanged(HWND hwndTV, HWND hwndLV, HTREEITEM hItem, BOOL bRefreshLV)
 161 {
 162     if (bRefreshLV) {
 163         LPWSTR keyPath;
 164         HKEY hRootKey = NULL;
 165         HTREEITEM rootitem;
 166
 167         rootitem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 168         if (rootitem == hItem)
 169         {
 170             SendMessageW(hwndLV, LVM_DELETEALLITEMS, 0, 0);
 171             UpdateStatusBar();
 172             return;
 173         }
 174
 175         keyPath = GetItemPath(hwndTV, hItem, &hRootKey);
 176         RefreshListView(hwndLV, hRootKey, keyPath, NULL);
 177         heap_free(keyPath);
 178     }
 179     UpdateStatusBar();
 180 }
 181
 182 /*******************************************************************************
 183  * finish_splitbar [internal]
 184  *
 185  * make the splitbar invisible and resize the windows
 186  * (helper for ChildWndProc)
 187  */
 188 static void finish_splitbar(HWND hWnd, int x)
 189 {
 190     RECT rt;
 191
 192     draw_splitbar(hWnd, last_split);
 193     last_split = -1;
 194     GetClientRect(hWnd, &rt);
 195     g_pChildWnd->nSplitPos = x;
 196     ResizeWnd(rt.right, rt.bottom);
 197     ReleaseCapture();
 198 }
 199
 200 /*******************************************************************************
 201  *
 202  *  FUNCTION: _CmdWndProc(HWND, unsigned, WORD, LONG)
 203  *
 204  *  PURPOSE:  Processes WM_COMMAND messages for the main frame window.
 205  *
 206  */
 207
 208 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 209 {
 210     switch (LOWORD(wParam)) {
 211         /* Parse the menu selections: */
 212     case ID_REGISTRY_EXIT:
 213         DestroyWindow(hWnd);
 214         break;
 215     case ID_VIEW_REFRESH:
 216         WINE_TRACE("Is this ever called or is it just dead code?\n");
 217         /* TODO */
 218         break;
 219     case ID_SWITCH_PANELS:
 220         g_pChildWnd->nFocusPanel = !g_pChildWnd->nFocusPanel;
 221         SetFocus(g_pChildWnd->nFocusPanel? g_pChildWnd->hListWnd: g_pChildWnd->hTreeWnd);
 222         break;
 223     default:
 224         return FALSE;
 225     }
 226     return TRUE;
 227 }
 228
 229 /*******************************************************************************
 230  * get_last_key [internal]
 231  *
 232  * open last key
 233  *
 234  */
 235 static void get_last_key(HWND hwndTV)
 236 {
 237     HKEY hkey;
 238     WCHAR wszVal[KEY_MAX_LEN];
 239     DWORD dwSize = sizeof(wszVal);
 240
 241     if (RegCreateKeyExW(HKEY_CURRENT_USER, wszKeyName, 0, NULL, 0, KEY_READ, NULL, &hkey, NULL) == ERROR_SUCCESS)
 242     {
 243         if (RegQueryValueExW(hkey, wszLastKey, NULL, NULL, (LPBYTE)wszVal, &dwSize) == ERROR_SUCCESS)
 244         {
 245             HTREEITEM selection;
 246             if (!strcmpW(wszVal, g_pChildWnd->szPath))
 247                 selection = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 248             else
 249                 selection = FindPathInTree(hwndTV, wszVal);
 250             SendMessageW(hwndTV, TVM_SELECTITEM, TVGN_CARET, (LPARAM)selection);
 251         }
 252
 253         RegCloseKey(hkey);
 254     }
 255 }
 256
 257 /*******************************************************************************
 258  * set_last_key [internal]
 259  *
 260  * save last key
 261  *
 262  */
 263 static void set_last_key(HWND hwndTV)
 264 {
 265     HKEY hkey;
 266
 267     if (RegCreateKeyExW(HKEY_CURRENT_USER, wszKeyName, 0, NULL, 0, KEY_WRITE, NULL, &hkey, NULL) == ERROR_SUCCESS)
 268     {
 269         HTREEITEM selection = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_CARET, 0);
 270         HTREEITEM root = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 271         WCHAR *value;
 272
 273         if (selection == root)
 274             value = g_pChildWnd->szPath;
 275         else
 276             value = GetItemFullPath(g_pChildWnd->hTreeWnd, selection, FALSE);
 277         RegSetValueExW(hkey, wszLastKey, 0, REG_SZ, (LPBYTE)value, (lstrlenW(value) + 1) * sizeof(WCHAR));
 278         if (selection != root)
 279             heap_free(value);
 280         RegCloseKey(hkey);
 281     }
 282 }
 283
 284 static int treeview_notify(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 285 {
 286     switch (((NMHDR *)lParam)->code)
 287     {
 288         case NM_SETFOCUS:
 289             g_pChildWnd->nFocusPanel = 0;
 290             break;
 291         case TVN_BEGINLABELEDITW:
 292         {
 293             HKEY hRootKey;
 294             WCHAR *path;
 295
 296             if (!GetWindowLongPtrW(g_pChildWnd->hTreeWnd, GWLP_USERDATA))
 297                 return 1;
 298
 299             path = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hRootKey);
 300             if (!path || !*path)
 301                 return 1;
 302             return 0;
 303         }
 304         case TVN_ENDLABELEDITW:
 305         {
 306             HKEY hRootKey;
 307             NMTVDISPINFOW *dispInfo = (NMTVDISPINFOW *)lParam;
 308             WCHAR *path = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hRootKey);
 309             BOOL res = RenameKey(hWnd, hRootKey, path, dispInfo->item.pszText);
 310
 311             heap_free(path);
 312
 313             if (res)
 314             {
 315                 TVITEMW item;
 316
 317                 item.mask = TVIF_HANDLE | TVIF_TEXT;
 318                 item.hItem = dispInfo->item.hItem;
 319                 item.pszText = dispInfo->item.pszText;
 320                 SendMessageW(g_pChildWnd->hTreeWnd, TVM_SETITEMW, 0, (LPARAM)&item);
 321
 322                 path = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hRootKey);
 323                 update_listview_path(path);
 324                 heap_free(path);
 325
 326                 UpdateStatusBar();
 327             }
 328
 329             SetWindowLongPtrW(g_pChildWnd->hTreeWnd, GWLP_USERDATA, 0);
 330             return res;
 331         }
 332         case TVN_ITEMEXPANDINGW:
 333             return !OnTreeExpanding(g_pChildWnd->hTreeWnd, (NMTREEVIEWW *)lParam);
 334         case TVN_SELCHANGEDW:
 335             OnTreeSelectionChanged(g_pChildWnd->hTreeWnd, g_pChildWnd->hListWnd,
 336                                    ((NMTREEVIEWW *)lParam)->itemNew.hItem, TRUE);
 337             break;
 338     }
 339     return 0;
 340 }
 341
 342 static int listview_notify(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 343 {
 344     switch (((NMHDR *)lParam)->code)
 345     {
 346         case NM_DBLCLK:
 347         {
 348             NMITEMACTIVATE *nmitem = (NMITEMACTIVATE *)lParam;
 349
 350             if (nmitem->iItem != -1)
 351             {
 352                 LVITEMW item;
 353
 354                 item.state = 0;
 355                 item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 356                 SendMessageW(g_pChildWnd->hListWnd, LVM_SETITEMSTATE, (UINT)-1, (LPARAM)&item);
 357
 358                 item.state = LVIS_FOCUSED | LVIS_SELECTED;
 359                 item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 360                 SendMessageW(g_pChildWnd->hListWnd, LVM_SETITEMSTATE, nmitem->iItem, (LPARAM)&item);
 361
 362                 SendMessageW(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 363             }
 364             break;
 365         }
 366         case NM_RETURN:
 367         {
 368             int cnt = SendMessageW(g_pChildWnd->hListWnd, LVM_GETNEXTITEM, -1,
 369                                    MAKELPARAM(LVNI_FOCUSED | LVNI_SELECTED, 0));
 370             if (cnt != -1)
 371                 SendMessageW(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 372             break;
 373         }
 374         case NM_SETFOCUS:
 375             g_pChildWnd->nFocusPanel = 1;
 376             break;
 377         case LVN_BEGINLABELEDITW:
 378             if (!((NMLVDISPINFOW *)lParam)->item.iItem)
 379                 return 1;
 380             return 0;
 381         case LVN_COLUMNCLICK:
 382             if (g_columnToSort == ((NMLISTVIEW *)lParam)->iSubItem)
 383                 g_invertSort = !g_invertSort;
 384             else
 385             {
 386                 g_columnToSort = ((NMLISTVIEW *)lParam)->iSubItem;
 387                 g_invertSort = FALSE;
 388             }
 389
 390             SendMessageW(g_pChildWnd->hListWnd, LVM_SORTITEMS,
 391                         (WPARAM)g_pChildWnd->hListWnd, (LPARAM)CompareFunc);
 392             break;
 393         case LVN_DELETEITEM:
 394         {
 395             NMLISTVIEW *nmlv = (NMLISTVIEW *)lParam;
 396             LINE_INFO *info = (LINE_INFO *)nmlv->lParam;
 397
 398             heap_free(info->name);
 399             heap_free(info->val);
 400             heap_free(info);
 401             break;
 402         }
 403         case LVN_ENDLABELEDITW:
 404         {
 405             NMLVDISPINFOW *dispInfo = (NMLVDISPINFOW *)lParam;
 406             WCHAR *oldName = GetItemText(g_pChildWnd->hListWnd, dispInfo->item.iItem);
 407             LONG ret;
 408
 409             if (!oldName) return -1; /* cannot rename a default value */
 410             ret = RenameValue(g_pChildWnd->hListWnd, g_currentRootKey, g_currentPath,
 411                               oldName, dispInfo->item.pszText);
 412             if (ret)
 413             {
 414                 dispInfo->item.iSubItem = 0;
 415                 SendMessageW(g_pChildWnd->hListWnd, LVM_SETITEMTEXTW,
 416                              dispInfo->item.iItem, (LPARAM)&dispInfo->item);
 417             }
 418
 419             heap_free(oldName);
 420             return 0;
 421         }
 422         case LVN_GETDISPINFOW:
 423             OnGetDispInfo((NMLVDISPINFOW *)lParam);
 424             break;
 425     }
 426     return 0;
 427 }
 428
 429 #define GET_X_LPARAM(lp) ((int)(short)LOWORD(lp))
 430 #define GET_Y_LPARAM(lp) ((int)(short)HIWORD(lp))
 431
 432 /*******************************************************************************
 433  *
 434  *  FUNCTION: ChildWndProc(HWND, unsigned, WORD, LONG)
 435  *
 436  *  PURPOSE:  Processes messages for the child windows.
 437  *
 438  *  WM_COMMAND  - process the application menu
 439  *  WM_PAINT    - Paint the main window
 440  *  WM_DESTROY  - post a quit message and return
 441  *
 442  */
 443 LRESULT CALLBACK ChildWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 444 {
 445     switch (message) {
 446     case WM_CREATE:
 447         g_pChildWnd = heap_xalloc(sizeof(ChildWnd));
 448         if (!g_pChildWnd) return 0;
 449         LoadStringW(hInst, IDS_REGISTRY_ROOT_NAME, g_pChildWnd->szPath, MAX_PATH);
 450         g_pChildWnd->nSplitPos = 250;
 451         g_pChildWnd->hWnd = hWnd;
 452         g_pChildWnd->hTreeWnd = CreateTreeView(hWnd, g_pChildWnd->szPath, TREE_WINDOW);
 453         g_pChildWnd->hListWnd = CreateListView(hWnd, LIST_WINDOW/*, g_pChildWnd->szPath*/);
 454         g_pChildWnd->nFocusPanel = 1;
 455         SetFocus(g_pChildWnd->hTreeWnd);
 456         get_last_key(g_pChildWnd->hTreeWnd);
 457         break;
 458     case WM_COMMAND:
 459         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 460             goto def;
 461         }
 462         break;
 463     case WM_PAINT:
 464         OnPaint(hWnd);
 465         return 0;
 466     case WM_SETCURSOR:
 467         if (LOWORD(lParam) == HTCLIENT) {
 468             POINT pt;
 469             GetCursorPos(&pt);
 470             ScreenToClient(hWnd, &pt);
 471             if (pt.x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && pt.x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 472                 SetCursor(LoadCursorW(0, (LPCWSTR)IDC_SIZEWE));
 473                 return TRUE;
 474             }
 475         }
 476         goto def;
 477     case WM_DESTROY:
 478         set_last_key(g_pChildWnd->hTreeWnd);
 479         heap_free(g_pChildWnd);
 480         g_pChildWnd = NULL;
 481         PostQuitMessage(0);
 482         break;
 483     case WM_LBUTTONDOWN: {
 484             RECT rt;
 485             int x = (short)LOWORD(lParam);
 486             GetClientRect(hWnd, &rt);
 487             if (x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 488                 last_split = g_pChildWnd->nSplitPos;
 489                 draw_splitbar(hWnd, last_split);
 490                 SetCapture(hWnd);
 491             }
 492             break;
 493         }
 494
 495     /* WM_RBUTTONDOWN sets the splitbar the same way as WM_LBUTTONUP */
 496     case WM_LBUTTONUP:
 497     case WM_RBUTTONDOWN:
 498         if (GetCapture() == hWnd) {
 499             finish_splitbar(hWnd, LOWORD(lParam));
 500         }
 501         break;
 502
 503     case WM_CAPTURECHANGED:
 504         if (GetCapture()==hWnd && last_split>=0)
 505             draw_splitbar(hWnd, last_split);
 506         break;
 507
 508     case WM_CONTEXTMENU:
 509     {
 510         POINT pt = {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
 511         short int menu_id = -1;
 512
 513         if ((HWND)wParam == g_pChildWnd->hTreeWnd)
 514         {
 515             TVHITTESTINFO ht;
 516
 517             ht.pt = pt;
 518             ScreenToClient(g_pChildWnd->hTreeWnd, &ht.pt);
 519
 520             if (SendMessageW(g_pChildWnd->hTreeWnd, TVM_HITTEST, 0, (LPARAM)&ht))
 521             {
 522                 HTREEITEM root;
 523
 524                 SendMessageW(g_pChildWnd->hTreeWnd, TVM_SELECTITEM, TVGN_CARET, (LPARAM)ht.hItem);
 525                 root = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 526                 menu_id = (ht.hItem == root) ? PM_COMPUTER : PM_TREEVIEW;
 527             }
 528         }
 529         else
 530         {
 531             int sel = SendMessageW(g_pChildWnd->hListWnd, LVM_GETNEXTITEM, -1,
 532                                    MAKELPARAM(LVNI_SELECTED, 0));
 533             menu_id = (sel == -1) ? PM_NEW_VALUE : PM_MODIFY_VALUE;
 534         }
 535
 536         TrackPopupMenu(GetSubMenu(hPopupMenus, menu_id), TPM_RIGHTBUTTON,
 537                        pt.x, pt.y, 0, hFrameWnd, NULL);
 538         break;
 539     }
 540
 541     case WM_KEYDOWN:
 542         if (wParam == VK_ESCAPE)
 543             if (GetCapture() == hWnd) {
 544                 RECT rt;
 545                 draw_splitbar(hWnd, last_split);
 546                 GetClientRect(hWnd, &rt);
 547                 ResizeWnd(rt.right, rt.bottom);
 548                 last_split = -1;
 549                 ReleaseCapture();
 550                 SetCursor(LoadCursorW(0, (LPCWSTR)IDC_ARROW));
 551             }
 552         break;
 553
 554     case WM_MOUSEMOVE:
 555         if (GetCapture() == hWnd) {
 556             RECT rt;
 557             int x = LOWORD(lParam);
 558             HDC hdc = GetDC(hWnd);
 559             GetClientRect(hWnd, &rt);
 560             rt.left = last_split-SPLIT_WIDTH/2;
 561             rt.right = last_split+SPLIT_WIDTH/2+1;
 562             InvertRect(hdc, &rt);
 563             last_split = x;
 564             rt.left = x-SPLIT_WIDTH/2;
 565             rt.right = x+SPLIT_WIDTH/2+1;
 566             InvertRect(hdc, &rt);
 567             ReleaseDC(hWnd, hdc);
 568         }
 569         break;
 570
 571     case WM_SETFOCUS:
 572         if (g_pChildWnd != NULL) {
 573             SetFocus(g_pChildWnd->nFocusPanel? g_pChildWnd->hListWnd: g_pChildWnd->hTreeWnd);
 574         }
 575         break;
 576
 577     case WM_TIMER:
 578         break;
 579
 580     case WM_NOTIFY:
 581         if (wParam == TREE_WINDOW && g_pChildWnd)
 582             return treeview_notify(hWnd, message, wParam, lParam);
 583         else if (wParam == LIST_WINDOW && g_pChildWnd)
 584             return listview_notify(hWnd, message, wParam, lParam);
 585         break;
 586
 587     case WM_SIZE:
 588         if (wParam != SIZE_MINIMIZED && g_pChildWnd != NULL) {
 589             ResizeWnd(LOWORD(lParam), HIWORD(lParam));
 590         }
 591         /* fall through */
 592 default: def:
 593         return DefWindowProcW(hWnd, message, wParam, lParam);
 594     }
 595     return 0;
 596 }