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','a','s','t','K','e','y',0};
  36 static const WCHAR wszKeyName[] = {'S','o','f','t','w','a','r','e','\\',
  37                                    'M','i','c','r','o','s','o','f','t','\\',
  38                                    'W','i','n','d','o','w','s','\\',
  39                                    'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
  40                                    'A','p','p','l','e','t','s','\\','R','e','g','e','d','i','t',0};
  41
  42 /*******************************************************************************
  43  * Local module support methods
  44  */
  45
  46 static LPCWSTR GetRootKeyName(HKEY hRootKey)
  47 {
  48     if(hRootKey == HKEY_CLASSES_ROOT)
  49         return reg_class_namesW[INDEX_HKEY_CLASSES_ROOT];
  50     if(hRootKey == HKEY_CURRENT_USER)
  51         return reg_class_namesW[INDEX_HKEY_CURRENT_USER];
  52     if(hRootKey == HKEY_LOCAL_MACHINE)
  53         return reg_class_namesW[INDEX_HKEY_LOCAL_MACHINE];
  54     if(hRootKey == HKEY_USERS)
  55         return reg_class_namesW[INDEX_HKEY_USERS];
  56     if(hRootKey == HKEY_CURRENT_CONFIG)
  57         return reg_class_namesW[INDEX_HKEY_CURRENT_CONFIG];
  58     if(hRootKey == HKEY_DYN_DATA)
  59         return reg_class_namesW[INDEX_HKEY_DYN_DATA];
  60     else
  61     {
  62         static const WCHAR unknown_key[] = {'U','N','K','N','O','W','N',' ','H','K','E','Y',',',' ',
  63                                             'P','L','E','A','S','E',' ','R','E','P','O','R','T',0};
  64         return unknown_key;
  65     }
  66 }
  67
  68 static void draw_splitbar(HWND hWnd, int x)
  69 {
  70     RECT rt;
  71     HDC hdc = GetDC(hWnd);
  72
  73     GetClientRect(hWnd, &rt);
  74     rt.left = x - SPLIT_WIDTH/2;
  75     rt.right = x + SPLIT_WIDTH/2+1;
  76     InvertRect(hdc, &rt);
  77     ReleaseDC(hWnd, hdc);
  78 }
  79
  80 static void ResizeWnd(int cx, int cy)
  81 {
  82     HDWP hdwp = BeginDeferWindowPos(2);
  83     RECT rt = {0, 0, cx, cy};
  84
  85     cx = g_pChildWnd->nSplitPos + SPLIT_WIDTH/2;
  86     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);
  87     DeferWindowPos(hdwp, g_pChildWnd->hListWnd, 0, rt.left+cx  , rt.top, rt.right-cx, rt.bottom-rt.top, SWP_NOZORDER|SWP_NOACTIVATE);
  88     EndDeferWindowPos(hdwp);
  89 }
  90
  91 static void OnPaint(HWND hWnd)
  92 {
  93     PAINTSTRUCT ps;
  94     RECT rt;
  95
  96     GetClientRect(hWnd, &rt);
  97     BeginPaint(hWnd, &ps);
  98     FillRect(ps.hdc, &rt, GetSysColorBrush(COLOR_BTNFACE));
  99     EndPaint(hWnd, &ps);
 100 }
 101
 102 static LPWSTR CombinePaths(LPCWSTR pPaths[], int nPaths) {
 103     int i, len, pos;
 104     LPWSTR combined;
 105     for (i=0, len=0; i<nPaths; i++) {
 106         if (pPaths[i] && *pPaths[i]) {
 107             len += lstrlenW(pPaths[i])+1;
 108         }
 109     }
 110     combined = heap_xalloc(len * sizeof(WCHAR));
 111     *combined = '\0';
 112     for (i=0, pos=0; i<nPaths; i++) {
 113         if (pPaths[i] && *pPaths[i]) {
 114             int llen = lstrlenW(pPaths[i]);
 115             if (!*combined)
 116                 lstrcpyW(combined, pPaths[i]);
 117             else {
 118                 combined[pos++] = '\\';
 119                 lstrcpyW(combined+pos, pPaths[i]);
 120             }
 121             pos += llen;
 122         }
 123     }
 124     return combined;
 125 }
 126
 127 static LPWSTR GetPathRoot(HWND hwndTV, HTREEITEM hItem, BOOL bFull) {
 128     LPCWSTR parts[2] = {0,0};
 129     WCHAR text[260];
 130     HKEY hRootKey = NULL;
 131     if (!hItem)
 132         hItem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_CARET, 0);
 133     heap_free(GetItemPath(hwndTV, hItem, &hRootKey));
 134     if (!bFull && !hRootKey)
 135         return NULL;
 136     if (hRootKey)
 137         parts[1] = GetRootKeyName(hRootKey);
 138     if (bFull) {
 139         DWORD dwSize = ARRAY_SIZE(text);
 140         GetComputerNameW(text, &dwSize);
 141         parts[0] = text;
 142     }
 143     return CombinePaths(parts, 2);
 144 }
 145
 146 LPWSTR GetItemFullPath(HWND hwndTV, HTREEITEM hItem, BOOL bFull) {
 147     LPWSTR parts[2];
 148     LPWSTR ret;
 149     HKEY hRootKey = NULL;
 150
 151     parts[0] = GetPathRoot(hwndTV, hItem, bFull);
 152     parts[1] = GetItemPath(hwndTV, hItem, &hRootKey);
 153     ret = CombinePaths((LPCWSTR *)parts, 2);
 154     heap_free(parts[0]);
 155     heap_free(parts[1]);
 156     return ret;
 157 }
 158
 159 static void OnTreeSelectionChanged(HWND hwndTV, HWND hwndLV, HTREEITEM hItem, BOOL bRefreshLV)
 160 {
 161     if (bRefreshLV) {
 162         LPWSTR keyPath;
 163         HKEY hRootKey = NULL;
 164         HTREEITEM rootitem;
 165
 166         rootitem = (HTREEITEM)SendMessageW(hwndTV, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 167         if (rootitem == hItem)
 168         {
 169             SendMessageW(hwndLV, LVM_DELETEALLITEMS, 0, 0);
 170             UpdateStatusBar();
 171             return;
 172         }
 173
 174         keyPath = GetItemPath(hwndTV, hItem, &hRootKey);
 175         RefreshListView(hwndLV, hRootKey, keyPath, NULL);
 176         heap_free(keyPath);
 177     }
 178     UpdateStatusBar();
 179 }
 180
 181 /*******************************************************************************
 182  * finish_splitbar [internal]
 183  *
 184  * make the splitbar invisible and resize the windows
 185  * (helper for ChildWndProc)
 186  */
 187 static void finish_splitbar(HWND hWnd, int x)
 188 {
 189     RECT rt;
 190
 191     draw_splitbar(hWnd, last_split);
 192     last_split = -1;
 193     GetClientRect(hWnd, &rt);
 194     g_pChildWnd->nSplitPos = x;
 195     ResizeWnd(rt.right, rt.bottom);
 196     ReleaseCapture();
 197 }
 198
 199 /*******************************************************************************
 200  *
 201  *  FUNCTION: _CmdWndProc(HWND, unsigned, WORD, LONG)
 202  *
 203  *  PURPOSE:  Processes WM_COMMAND messages for the main frame window.
 204  *
 205  */
 206
 207 static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 208 {
 209     switch (LOWORD(wParam)) {
 210         /* Parse the menu selections: */
 211     case ID_REGISTRY_EXIT:
 212         DestroyWindow(hWnd);
 213         break;
 214     case ID_VIEW_REFRESH:
 215         WINE_TRACE("Is this ever called or is it just dead code?\n");
 216         /* TODO */
 217         break;
 218     case ID_SWITCH_PANELS:
 219         g_pChildWnd->nFocusPanel = !g_pChildWnd->nFocusPanel;
 220         SetFocus(g_pChildWnd->nFocusPanel? g_pChildWnd->hListWnd: g_pChildWnd->hTreeWnd);
 221         break;
 222     default:
 223         return FALSE;
 224     }
 225     return TRUE;
 226 }
 227
 228 /*******************************************************************************
 229  * get_last_key [internal]
 230  *
 231  * open last key
 232  *
 233  */
 234 static void get_last_key(HWND hwndTV)
 235 {
 236     HKEY hkey;
 237     WCHAR wszVal[KEY_MAX_LEN];
 238     DWORD dwSize = sizeof(wszVal);
 239
 240     if (RegCreateKeyExW(HKEY_CURRENT_USER, wszKeyName, 0, NULL, 0, KEY_READ, NULL, &hkey, NULL) == ERROR_SUCCESS)
 241     {
 242         HTREEITEM selection = NULL;
 243         if (RegQueryValueExW(hkey, wszLastKey, NULL, NULL, (LPBYTE)wszVal, &dwSize) == ERROR_SUCCESS)
 244         {
 245             if (lstrcmpW(wszVal, g_pChildWnd->szPath))
 246                 selection = FindPathInTree(hwndTV, wszVal);
 247         }
 248
 249         if(!selection)
 250         {
 251             selection = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 252             SendMessageW(hwndTV, TVM_EXPAND, TVE_EXPAND, (LPARAM)selection );
 253         }
 254         else
 255             SendMessageW(hwndTV, TVM_SELECTITEM, TVGN_CARET, (LPARAM)selection);
 256
 257         RegCloseKey(hkey);
 258     }
 259 }
 260
 261 /*******************************************************************************
 262  * set_last_key [internal]
 263  *
 264  * save last key
 265  *
 266  */
 267 static void set_last_key(HWND hwndTV)
 268 {
 269     HKEY hkey;
 270
 271     if (RegCreateKeyExW(HKEY_CURRENT_USER, wszKeyName, 0, NULL, 0, KEY_WRITE, NULL, &hkey, NULL) == ERROR_SUCCESS)
 272     {
 273         HTREEITEM selection = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_CARET, 0);
 274         HTREEITEM root = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 275         WCHAR *value;
 276
 277         if (selection == root)
 278             value = g_pChildWnd->szPath;
 279         else
 280             value = GetItemFullPath(g_pChildWnd->hTreeWnd, selection, FALSE);
 281         RegSetValueExW(hkey, wszLastKey, 0, REG_SZ, (LPBYTE)value, (lstrlenW(value) + 1) * sizeof(WCHAR));
 282         if (selection != root)
 283             heap_free(value);
 284         RegCloseKey(hkey);
 285     }
 286 }
 287
 288 static int treeview_notify(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 289 {
 290     switch (((NMHDR *)lParam)->code)
 291     {
 292         case NM_SETFOCUS:
 293             g_pChildWnd->nFocusPanel = 0;
 294             break;
 295         case TVN_BEGINLABELEDITW:
 296         {
 297             HKEY hRootKey;
 298             WCHAR *path;
 299
 300             if (!GetWindowLongPtrW(g_pChildWnd->hTreeWnd, GWLP_USERDATA))
 301                 return 1;
 302
 303             path = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hRootKey);
 304             if (!path || !*path)
 305                 return 1;
 306             return 0;
 307         }
 308         case TVN_ENDLABELEDITW:
 309         {
 310             HKEY hRootKey;
 311             NMTVDISPINFOW *dispInfo = (NMTVDISPINFOW *)lParam;
 312             WCHAR *path = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hRootKey);
 313             BOOL res = RenameKey(hWnd, hRootKey, path, dispInfo->item.pszText);
 314
 315             heap_free(path);
 316
 317             if (res)
 318             {
 319                 TVITEMW item;
 320
 321                 item.mask = TVIF_HANDLE | TVIF_TEXT;
 322                 item.hItem = dispInfo->item.hItem;
 323                 item.pszText = dispInfo->item.pszText;
 324                 SendMessageW(g_pChildWnd->hTreeWnd, TVM_SETITEMW, 0, (LPARAM)&item);
 325
 326                 path = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hRootKey);
 327                 update_listview_path(path);
 328                 heap_free(path);
 329
 330                 UpdateStatusBar();
 331             }
 332
 333             SetWindowLongPtrW(g_pChildWnd->hTreeWnd, GWLP_USERDATA, 0);
 334             return res;
 335         }
 336         case TVN_ITEMEXPANDINGW:
 337             return !OnTreeExpanding(g_pChildWnd->hTreeWnd, (NMTREEVIEWW *)lParam);
 338         case TVN_SELCHANGEDW:
 339             OnTreeSelectionChanged(g_pChildWnd->hTreeWnd, g_pChildWnd->hListWnd,
 340                                    ((NMTREEVIEWW *)lParam)->itemNew.hItem, TRUE);
 341             break;
 342     }
 343     return 0;
 344 }
 345
 346 static int listview_notify(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 347 {
 348     switch (((NMHDR *)lParam)->code)
 349     {
 350         case NM_DBLCLK:
 351         {
 352             NMITEMACTIVATE *nmitem = (NMITEMACTIVATE *)lParam;
 353
 354             if (nmitem->iItem != -1)
 355             {
 356                 LVITEMW item;
 357
 358                 item.state = 0;
 359                 item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 360                 SendMessageW(g_pChildWnd->hListWnd, LVM_SETITEMSTATE, (UINT)-1, (LPARAM)&item);
 361
 362                 item.state = LVIS_FOCUSED | LVIS_SELECTED;
 363                 item.stateMask = LVIS_FOCUSED | LVIS_SELECTED;
 364                 SendMessageW(g_pChildWnd->hListWnd, LVM_SETITEMSTATE, nmitem->iItem, (LPARAM)&item);
 365
 366                 SendMessageW(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 367             }
 368             break;
 369         }
 370         case NM_RETURN:
 371         {
 372             int cnt = SendMessageW(g_pChildWnd->hListWnd, LVM_GETNEXTITEM, -1,
 373                                    MAKELPARAM(LVNI_FOCUSED | LVNI_SELECTED, 0));
 374             if (cnt != -1)
 375                 SendMessageW(hFrameWnd, WM_COMMAND, ID_EDIT_MODIFY, 0);
 376             break;
 377         }
 378         case NM_SETFOCUS:
 379             g_pChildWnd->nFocusPanel = 1;
 380             break;
 381         case LVN_BEGINLABELEDITW:
 382             if (!((NMLVDISPINFOW *)lParam)->item.iItem)
 383                 return 1;
 384             return 0;
 385         case LVN_COLUMNCLICK:
 386             if (g_columnToSort == ((NMLISTVIEW *)lParam)->iSubItem)
 387                 g_invertSort = !g_invertSort;
 388             else
 389             {
 390                 g_columnToSort = ((NMLISTVIEW *)lParam)->iSubItem;
 391                 g_invertSort = FALSE;
 392             }
 393
 394             SendMessageW(g_pChildWnd->hListWnd, LVM_SORTITEMS,
 395                         (WPARAM)g_pChildWnd->hListWnd, (LPARAM)CompareFunc);
 396             break;
 397         case LVN_DELETEITEM:
 398         {
 399             NMLISTVIEW *nmlv = (NMLISTVIEW *)lParam;
 400             LINE_INFO *info = (LINE_INFO *)nmlv->lParam;
 401
 402             heap_free(info->name);
 403             heap_free(info->val);
 404             heap_free(info);
 405             break;
 406         }
 407         case LVN_ENDLABELEDITW:
 408         {
 409             NMLVDISPINFOW *dispInfo = (NMLVDISPINFOW *)lParam;
 410             WCHAR *oldName = GetItemText(g_pChildWnd->hListWnd, dispInfo->item.iItem);
 411             LONG ret;
 412
 413             if (!oldName) return -1; /* cannot rename a default value */
 414             ret = RenameValue(g_pChildWnd->hListWnd, g_currentRootKey, g_currentPath,
 415                               oldName, dispInfo->item.pszText);
 416             if (ret)
 417             {
 418                 dispInfo->item.iSubItem = 0;
 419                 SendMessageW(g_pChildWnd->hListWnd, LVM_SETITEMTEXTW,
 420                              dispInfo->item.iItem, (LPARAM)&dispInfo->item);
 421             }
 422
 423             heap_free(oldName);
 424             return 0;
 425         }
 426         case LVN_GETDISPINFOW:
 427             OnGetDispInfo((NMLVDISPINFOW *)lParam);
 428             break;
 429     }
 430     return 0;
 431 }
 432
 433 #define GET_X_LPARAM(lp) ((int)(short)LOWORD(lp))
 434 #define GET_Y_LPARAM(lp) ((int)(short)HIWORD(lp))
 435
 436 /*******************************************************************************
 437  *
 438  *  FUNCTION: ChildWndProc(HWND, unsigned, WORD, LONG)
 439  *
 440  *  PURPOSE:  Processes messages for the child windows.
 441  *
 442  *  WM_COMMAND  - process the application menu
 443  *  WM_PAINT    - Paint the main window
 444  *  WM_DESTROY  - post a quit message and return
 445  *
 446  */
 447 LRESULT CALLBACK ChildWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 448 {
 449     switch (message) {
 450     case WM_CREATE:
 451         g_pChildWnd = heap_xalloc(sizeof(ChildWnd));
 452         if (!g_pChildWnd) return 0;
 453         LoadStringW(hInst, IDS_REGISTRY_ROOT_NAME, g_pChildWnd->szPath, MAX_PATH);
 454         g_pChildWnd->nSplitPos = 250;
 455         g_pChildWnd->hWnd = hWnd;
 456         g_pChildWnd->hTreeWnd = CreateTreeView(hWnd, g_pChildWnd->szPath, TREE_WINDOW);
 457         g_pChildWnd->hListWnd = CreateListView(hWnd, LIST_WINDOW/*, g_pChildWnd->szPath*/);
 458         g_pChildWnd->nFocusPanel = 1;
 459         SetFocus(g_pChildWnd->hTreeWnd);
 460         get_last_key(g_pChildWnd->hTreeWnd);
 461         break;
 462     case WM_COMMAND:
 463         if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
 464             goto def;
 465         }
 466         break;
 467     case WM_PAINT:
 468         OnPaint(hWnd);
 469         return 0;
 470     case WM_SETCURSOR:
 471         if (LOWORD(lParam) == HTCLIENT) {
 472             POINT pt;
 473             GetCursorPos(&pt);
 474             ScreenToClient(hWnd, &pt);
 475             if (pt.x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && pt.x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 476                 SetCursor(LoadCursorW(0, (LPCWSTR)IDC_SIZEWE));
 477                 return TRUE;
 478             }
 479         }
 480         goto def;
 481     case WM_DESTROY:
 482         set_last_key(g_pChildWnd->hTreeWnd);
 483         heap_free(g_pChildWnd);
 484         g_pChildWnd = NULL;
 485         PostQuitMessage(0);
 486         break;
 487     case WM_LBUTTONDOWN: {
 488             RECT rt;
 489             int x = (short)LOWORD(lParam);
 490             GetClientRect(hWnd, &rt);
 491             if (x>=g_pChildWnd->nSplitPos-SPLIT_WIDTH/2 && x<g_pChildWnd->nSplitPos+SPLIT_WIDTH/2+1) {
 492                 last_split = g_pChildWnd->nSplitPos;
 493                 draw_splitbar(hWnd, last_split);
 494                 SetCapture(hWnd);
 495             }
 496             break;
 497         }
 498
 499     /* WM_RBUTTONDOWN sets the splitbar the same way as WM_LBUTTONUP */
 500     case WM_LBUTTONUP:
 501     case WM_RBUTTONDOWN:
 502         if (GetCapture() == hWnd) {
 503             finish_splitbar(hWnd, LOWORD(lParam));
 504         }
 505         break;
 506
 507     case WM_CAPTURECHANGED:
 508         if (GetCapture()==hWnd && last_split>=0)
 509             draw_splitbar(hWnd, last_split);
 510         break;
 511
 512     case WM_CONTEXTMENU:
 513     {
 514         POINT pt = {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
 515         short int menu_id = -1;
 516
 517         if ((HWND)wParam == g_pChildWnd->hTreeWnd)
 518         {
 519             TVHITTESTINFO ht;
 520
 521             ht.pt = pt;
 522             ScreenToClient(g_pChildWnd->hTreeWnd, &ht.pt);
 523
 524             if (SendMessageW(g_pChildWnd->hTreeWnd, TVM_HITTEST, 0, (LPARAM)&ht))
 525             {
 526                 HTREEITEM root;
 527
 528                 SendMessageW(g_pChildWnd->hTreeWnd, TVM_SELECTITEM, TVGN_CARET, (LPARAM)ht.hItem);
 529                 root = (HTREEITEM)SendMessageW(g_pChildWnd->hTreeWnd, TVM_GETNEXTITEM, TVGN_ROOT, 0);
 530                 menu_id = (ht.hItem == root) ? PM_COMPUTER : PM_TREEVIEW;
 531             }
 532         }
 533         else
 534         {
 535             int sel = SendMessageW(g_pChildWnd->hListWnd, LVM_GETNEXTITEM, -1,
 536                                    MAKELPARAM(LVNI_SELECTED, 0));
 537             menu_id = (sel == -1) ? PM_NEW_VALUE : PM_MODIFY_VALUE;
 538         }
 539
 540         TrackPopupMenu(GetSubMenu(hPopupMenus, menu_id), TPM_RIGHTBUTTON,
 541                        pt.x, pt.y, 0, hFrameWnd, NULL);
 542         break;
 543     }
 544
 545     case WM_KEYDOWN:
 546         if (wParam == VK_ESCAPE)
 547             if (GetCapture() == hWnd) {
 548                 RECT rt;
 549                 draw_splitbar(hWnd, last_split);
 550                 GetClientRect(hWnd, &rt);
 551                 ResizeWnd(rt.right, rt.bottom);
 552                 last_split = -1;
 553                 ReleaseCapture();
 554                 SetCursor(LoadCursorW(0, (LPCWSTR)IDC_ARROW));
 555             }
 556         break;
 557
 558     case WM_MOUSEMOVE:
 559         if (GetCapture() == hWnd) {
 560             RECT rt;
 561             int x = LOWORD(lParam);
 562             HDC hdc = GetDC(hWnd);
 563             GetClientRect(hWnd, &rt);
 564             rt.left = last_split-SPLIT_WIDTH/2;
 565             rt.right = last_split+SPLIT_WIDTH/2+1;
 566             InvertRect(hdc, &rt);
 567             last_split = x;
 568             rt.left = x-SPLIT_WIDTH/2;
 569             rt.right = x+SPLIT_WIDTH/2+1;
 570             InvertRect(hdc, &rt);
 571             ReleaseDC(hWnd, hdc);
 572         }
 573         break;
 574
 575     case WM_SETFOCUS:
 576         if (g_pChildWnd != NULL) {
 577             SetFocus(g_pChildWnd->nFocusPanel? g_pChildWnd->hListWnd: g_pChildWnd->hTreeWnd);
 578         }
 579         break;
 580
 581     case WM_TIMER:
 582         break;
 583
 584     case WM_NOTIFY:
 585         if (wParam == TREE_WINDOW && g_pChildWnd)
 586             return treeview_notify(hWnd, message, wParam, lParam);
 587         else if (wParam == LIST_WINDOW && g_pChildWnd)
 588             return listview_notify(hWnd, message, wParam, lParam);
 589         break;
 590
 591     case WM_SIZE:
 592         if (wParam != SIZE_MINIMIZED && g_pChildWnd != NULL) {
 593             ResizeWnd(LOWORD(lParam), HIWORD(lParam));
 594         }
 595         /* fall through */
 596 default: def:
 597         return DefWindowProcW(hWnd, message, wParam, lParam);
 598     }
 599     return 0;
 600 }