programs/regedit/edit.c

   1 /*
   2  * Registry editing UI functions.
   3  *
   4  * Copyright (C) 2003 Dimitrie O. Paun
   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
  23 #include <windows.h>
  24 #include <commctrl.h>
  25 #include <commdlg.h>
  26 #include <cderr.h>
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include <shellapi.h>
  30 #include <shlwapi.h>
  31
  32 #include "wine/unicode.h"
  33 #include "main.h"
  34 #include "regproc.h"
  35 #include "resource.h"
  36
  37 static const WCHAR* editValueName;
  38 static WCHAR* stringValueData;
  39 static BOOL isDecimal;
  40
  41 struct edit_params
  42 {
  43     HKEY    hKey;
  44     LPCWSTR lpszValueName;
  45     void   *pData;
  46     LONG    cbData;
  47 };
  48
  49 static int vmessagebox(HWND hwnd, int buttons, int titleId, int resId, __ms_va_list va_args)
  50 {
  51     WCHAR title[256];
  52     WCHAR fmt[1024];
  53     WCHAR *str;
  54     int ret;
  55
  56     LoadStringW(hInst, titleId, title, COUNT_OF(title));
  57     LoadStringW(hInst, resId, fmt, COUNT_OF(fmt));
  58
  59     FormatMessageW(FORMAT_MESSAGE_FROM_STRING|FORMAT_MESSAGE_ALLOCATE_BUFFER,
  60                    fmt, 0, 0, (WCHAR *)&str, 0, &va_args);
  61     ret = MessageBoxW(hwnd, str, title, buttons);
  62     LocalFree(str);
  63
  64     return ret;
  65 }
  66
  67 int __cdecl messagebox(HWND hwnd, int buttons, int titleId, int resId, ...)
  68 {
  69     __ms_va_list ap;
  70     INT result;
  71
  72     __ms_va_start(ap, resId);
  73     result = vmessagebox(hwnd, buttons, titleId, resId, ap);
  74     __ms_va_end(ap);
  75
  76     return result;
  77 }
  78
  79 static void __cdecl error_code_messagebox(HWND hwnd, unsigned int msg_id, ...)
  80 {
  81     __ms_va_list ap;
  82
  83     __ms_va_start(ap, msg_id);
  84     vmessagebox(hwnd, MB_OK|MB_ICONERROR, IDS_ERROR, msg_id, ap);
  85     __ms_va_end(ap);
  86 }
  87
  88 static BOOL change_dword_base(HWND hwndDlg, BOOL toHex)
  89 {
  90     static const WCHAR percent_u[] = {'%','u',0};
  91     static const WCHAR percent_x[] = {'%','x',0};
  92
  93     WCHAR buf[128];
  94     DWORD val;
  95
  96     if (!GetDlgItemTextW(hwndDlg, IDC_VALUE_DATA, buf, COUNT_OF(buf))) return FALSE;
  97     if (!swscanf(buf, toHex ? percent_u : percent_x, &val)) return FALSE;
  98     wsprintfW(buf, toHex ? percent_x : percent_u, val);
  99     return SetDlgItemTextW(hwndDlg, IDC_VALUE_DATA, buf);
 100 }
 101
 102 static INT_PTR CALLBACK modify_dlgproc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
 103 {
 104     WCHAR* valueData;
 105     HWND hwndValue;
 106     int len;
 107
 108     switch(uMsg) {
 109     case WM_INITDIALOG:
 110         SetDlgItemTextW(hwndDlg, IDC_VALUE_NAME, editValueName);
 111         SetDlgItemTextW(hwndDlg, IDC_VALUE_DATA, stringValueData);
 112         CheckRadioButton(hwndDlg, IDC_DWORD_HEX, IDC_DWORD_DEC, isDecimal ? IDC_DWORD_DEC : IDC_DWORD_HEX);
 113         return TRUE;
 114     case WM_COMMAND:
 115         switch (LOWORD(wParam)) {
 116         case IDC_DWORD_HEX:
 117             if (isDecimal && change_dword_base(hwndDlg, TRUE)) isDecimal = FALSE;
 118         break;
 119         case IDC_DWORD_DEC:
 120             if (!isDecimal && change_dword_base(hwndDlg, FALSE)) isDecimal = TRUE;
 121         break;
 122         case IDOK:
 123             if ((hwndValue = GetDlgItem(hwndDlg, IDC_VALUE_DATA))) {
 124                 len = GetWindowTextLengthW(hwndValue);
 125                 if ((valueData = HeapReAlloc(GetProcessHeap(), 0, stringValueData, (len + 1) * sizeof(WCHAR)))) {
 126                     stringValueData = valueData;
 127                     if (!GetWindowTextW(hwndValue, stringValueData, len + 1))
 128                         *stringValueData = 0;
 129                 }
 130             }
 131             /* Fall through */
 132         case IDCANCEL:
 133             EndDialog(hwndDlg, wParam);
 134             return TRUE;
 135         }
 136     }
 137     return FALSE;
 138 }
 139
 140 static INT_PTR CALLBACK bin_modify_dlgproc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
 141 {
 142     struct edit_params *params;
 143     LPBYTE pData;
 144     LONG cbData;
 145     LONG lRet;
 146
 147     switch(uMsg) {
 148     case WM_INITDIALOG:
 149         params = (struct edit_params *)lParam;
 150         SetWindowLongPtrW(hwndDlg, DWLP_USER, (ULONG_PTR)params);
 151         if (params->lpszValueName)
 152             SetDlgItemTextW(hwndDlg, IDC_VALUE_NAME, params->lpszValueName);
 153         else
 154             SetDlgItemTextW(hwndDlg, IDC_VALUE_NAME, g_pszDefaultValueName);
 155         SendDlgItemMessageW(hwndDlg, IDC_VALUE_DATA, HEM_SETDATA, (WPARAM)params->cbData, (LPARAM)params->pData);
 156         return TRUE;
 157     case WM_COMMAND:
 158         switch (LOWORD(wParam)) {
 159         case IDOK:
 160             params = (struct edit_params *)GetWindowLongPtrW(hwndDlg, DWLP_USER);
 161             cbData = SendDlgItemMessageW(hwndDlg, IDC_VALUE_DATA, HEM_GETDATA, 0, 0);
 162             pData = HeapAlloc(GetProcessHeap(), 0, cbData);
 163
 164             if (pData)
 165             {
 166                 SendDlgItemMessageW(hwndDlg, IDC_VALUE_DATA, HEM_GETDATA, (WPARAM)cbData, (LPARAM)pData);
 167                 lRet = RegSetValueExW(params->hKey, params->lpszValueName, 0, REG_BINARY, pData, cbData);
 168             }
 169             else
 170                 lRet = ERROR_OUTOFMEMORY;
 171
 172             if (lRet == ERROR_SUCCESS)
 173                 EndDialog(hwndDlg, 1);
 174             else
 175             {
 176                 error_code_messagebox(hwndDlg, IDS_SET_VALUE_FAILED);
 177                 EndDialog(hwndDlg, 0);
 178             }
 179             return TRUE;
 180         case IDCANCEL:
 181             EndDialog(hwndDlg, 0);
 182             return TRUE;
 183         }
 184     }
 185     return FALSE;
 186 }
 187
 188 static BOOL check_value(HWND hwnd, HKEY hKey, LPCWSTR valueName)
 189 {
 190     WCHAR empty = 0;
 191     LONG lRet = RegQueryValueExW(hKey, valueName ? valueName : &empty, 0, NULL, 0, NULL);
 192     if(lRet != ERROR_SUCCESS) return FALSE;
 193     return TRUE;
 194 }
 195
 196 static LPWSTR read_value(HWND hwnd, HKEY hKey, LPCWSTR valueName, DWORD *lpType, LONG *len)
 197 {
 198     DWORD valueDataLen;
 199     LPWSTR buffer = NULL;
 200     LONG lRet;
 201         WCHAR empty = 0;
 202
 203     lRet = RegQueryValueExW(hKey, valueName ? valueName : &empty, 0, lpType, 0, &valueDataLen);
 204     if (lRet != ERROR_SUCCESS) {
 205         if (lRet == ERROR_FILE_NOT_FOUND && !valueName) { /* no default value here, make it up */
 206             if (len) *len = 1;
 207             if (lpType) *lpType = REG_SZ;
 208             buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR));
 209             *buffer = '\0';
 210             return buffer;
 211         }
 212         error_code_messagebox(hwnd, IDS_BAD_VALUE, valueName);
 213         goto done;
 214     }
 215     if ( *lpType == REG_DWORD ) valueDataLen = sizeof(DWORD);
 216     if (!(buffer = HeapAlloc(GetProcessHeap(), 0, valueDataLen+sizeof(WCHAR)))) {
 217         error_code_messagebox(hwnd, IDS_TOO_BIG_VALUE, valueDataLen);
 218         goto done;
 219     }
 220     lRet = RegQueryValueExW(hKey, valueName, 0, 0, (LPBYTE)buffer, &valueDataLen);
 221     if (lRet != ERROR_SUCCESS) {
 222         error_code_messagebox(hwnd, IDS_BAD_VALUE, valueName);
 223         goto done;
 224     }
 225     if((valueDataLen % sizeof(WCHAR)) == 0)
 226         buffer[valueDataLen / sizeof(WCHAR)] = 0;
 227     if(len) *len = valueDataLen;
 228     return buffer;
 229
 230 done:
 231     HeapFree(GetProcessHeap(), 0, buffer);
 232     return NULL;
 233 }
 234
 235 BOOL CreateKey(HWND hwnd, HKEY hKeyRoot, LPCWSTR keyPath, LPWSTR keyName)
 236 {
 237     BOOL result = FALSE;
 238     LONG lRet = ERROR_SUCCESS;
 239     HKEY retKey = NULL;
 240     WCHAR newKey[MAX_NEW_KEY_LEN - 4];
 241     int keyNum;
 242     HKEY hKey;
 243
 244     lRet = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_CREATE_SUB_KEY, &hKey);
 245     if (lRet != ERROR_SUCCESS) {
 246         error_code_messagebox(hwnd, IDS_CREATE_KEY_FAILED);
 247         goto done;
 248     }
 249
 250     if (!LoadStringW(GetModuleHandleW(0), IDS_NEWKEY, newKey, COUNT_OF(newKey))) goto done;
 251
 252     /* try to find a name for the key being created (maximum = 100 attempts) */
 253     for (keyNum = 1; keyNum < 100; keyNum++) {
 254         wsprintfW(keyName, newKey, keyNum);
 255         lRet = RegOpenKeyW(hKey, keyName, &retKey);
 256         if (lRet != ERROR_SUCCESS) break;
 257         RegCloseKey(retKey);
 258     }
 259     if (lRet == ERROR_SUCCESS) goto done;
 260
 261     lRet = RegCreateKeyW(hKey, keyName, &retKey);
 262     if (lRet != ERROR_SUCCESS) {
 263         error_code_messagebox(hwnd, IDS_CREATE_KEY_FAILED);
 264         goto done;
 265     }
 266
 267     result = TRUE;
 268
 269 done:
 270     RegCloseKey(retKey);
 271     return result;
 272 }
 273
 274 BOOL ModifyValue(HWND hwnd, HKEY hKeyRoot, LPCWSTR keyPath, LPCWSTR valueName)
 275 {
 276     BOOL result = FALSE;
 277     DWORD type;
 278     LONG lRet;
 279     HKEY hKey;
 280     LONG len;
 281
 282     lRet = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_READ | KEY_SET_VALUE, &hKey);
 283     if (lRet != ERROR_SUCCESS) {
 284         error_code_messagebox(hwnd, IDS_SET_VALUE_FAILED);
 285         return FALSE;
 286     }
 287
 288     editValueName = valueName ? valueName : g_pszDefaultValueName;
 289     if(!(stringValueData = read_value(hwnd, hKey, valueName, &type, &len))) goto done;
 290
 291     if ( (type == REG_SZ) || (type == REG_EXPAND_SZ) ) {
 292         if (DialogBoxW(0, MAKEINTRESOURCEW(IDD_EDIT_STRING), hwnd, modify_dlgproc) == IDOK) {
 293             lRet = RegSetValueExW(hKey, valueName, 0, type, (LPBYTE)stringValueData, (lstrlenW(stringValueData) + 1) * sizeof(WCHAR));
 294             if (lRet == ERROR_SUCCESS) result = TRUE;
 295             else error_code_messagebox(hwnd, IDS_SET_VALUE_FAILED);
 296         }
 297     } else if ( type == REG_DWORD ) {
 298         const WCHAR u[] = {'%','u',0};
 299         const WCHAR x[] = {'%','x',0};
 300         wsprintfW(stringValueData, isDecimal ? u : x, *((DWORD*)stringValueData));
 301         if (DialogBoxW(0, MAKEINTRESOURCEW(IDD_EDIT_DWORD), hwnd, modify_dlgproc) == IDOK) {
 302             DWORD val;
 303             CHAR* valueA = GetMultiByteString(stringValueData);
 304             if (sscanf(valueA, isDecimal ? "%u" : "%x", &val)) {
 305                 lRet = RegSetValueExW(hKey, valueName, 0, type, (BYTE*)&val, sizeof(val));
 306                 if (lRet == ERROR_SUCCESS) result = TRUE;
 307                 else error_code_messagebox(hwnd, IDS_SET_VALUE_FAILED);
 308             }
 309             HeapFree(GetProcessHeap(), 0, valueA);
 310         }
 311     } else if ( type == REG_BINARY ) {
 312         struct edit_params params;
 313         params.hKey = hKey;
 314         params.lpszValueName = valueName;
 315         params.pData = stringValueData;
 316         params.cbData = len;
 317         result = DialogBoxParamW(NULL, MAKEINTRESOURCEW(IDD_EDIT_BINARY), hwnd,
 318             bin_modify_dlgproc, (LPARAM)&params);
 319     } else if ( type == REG_MULTI_SZ ) {
 320         WCHAR char1 = '\r', char2 = '\n';
 321         WCHAR *tmpValueData = NULL;
 322         INT i, j, count;
 323
 324         for ( i = 0, count = 0; i < len - 1; i++)
 325             if ( !stringValueData[i] && stringValueData[i + 1] )
 326                 count++;
 327         tmpValueData = HeapAlloc( GetProcessHeap(), 0, ( len + count ) * sizeof(WCHAR));
 328         if ( !tmpValueData ) goto done;
 329
 330         for ( i = 0, j = 0; i < len - 1; i++)
 331         {
 332             if ( !stringValueData[i] && stringValueData[i + 1])
 333             {
 334                 tmpValueData[j++] = char1;
 335                 tmpValueData[j++] = char2;
 336             }
 337             else
 338                 tmpValueData[j++] = stringValueData[i];
 339         }
 340         tmpValueData[j] = stringValueData[i];
 341         HeapFree( GetProcessHeap(), 0, stringValueData);
 342         stringValueData = tmpValueData;
 343         tmpValueData = NULL;
 344
 345         if (DialogBoxW(0, MAKEINTRESOURCEW(IDD_EDIT_MULTI_STRING), hwnd, modify_dlgproc) == IDOK)
 346         {
 347             len = lstrlenW( stringValueData );
 348             tmpValueData = HeapAlloc( GetProcessHeap(), 0, (len + 2) * sizeof(WCHAR));
 349             if ( !tmpValueData ) goto done;
 350
 351             for ( i = 0, j = 0; i < len - 1; i++)
 352             {
 353                 if ( stringValueData[i] == char1 && stringValueData[i + 1] == char2)
 354                 {
 355                     if ( tmpValueData[j - 1] != 0)
 356                         tmpValueData[j++] = 0;
 357                     i++;
 358                 }
 359                 else
 360                     tmpValueData[j++] = stringValueData[i];
 361             }
 362             tmpValueData[j++] = stringValueData[i];
 363             tmpValueData[j++] = 0;
 364             tmpValueData[j++] = 0;
 365             HeapFree( GetProcessHeap(), 0, stringValueData);
 366             stringValueData = tmpValueData;
 367
 368             lRet = RegSetValueExW(hKey, valueName, 0, type, (LPBYTE)stringValueData, j * sizeof(WCHAR));
 369             if (lRet == ERROR_SUCCESS) result = TRUE;
 370             else error_code_messagebox(hwnd, IDS_SET_VALUE_FAILED);
 371         }
 372     } else {
 373         error_code_messagebox(hwnd, IDS_UNSUPPORTED_TYPE, type);
 374     }
 375
 376 done:
 377     HeapFree(GetProcessHeap(), 0, stringValueData);
 378     stringValueData = NULL;
 379     RegCloseKey(hKey);
 380     return result;
 381 }
 382
 383 BOOL DeleteKey(HWND hwnd, HKEY hKeyRoot, LPCWSTR keyPath)
 384 {
 385     BOOL result = FALSE;
 386     LONG lRet;
 387     HKEY hKey;
 388
 389     lRet = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_READ|KEY_SET_VALUE, &hKey);
 390     if (lRet != ERROR_SUCCESS) {
 391         error_code_messagebox(hwnd, IDS_DELETE_KEY_FAILED);
 392         return FALSE;
 393     }
 394
 395     if (messagebox(hwnd, MB_YESNO | MB_ICONEXCLAMATION, IDS_DELETE_BOX_TITLE, IDS_DELETE_BOX_TEXT, keyPath) != IDYES)
 396         goto done;
 397
 398     lRet = SHDeleteKeyW(hKeyRoot, keyPath);
 399     if (lRet != ERROR_SUCCESS) {
 400         error_code_messagebox(hwnd, IDS_BAD_KEY, keyPath);
 401         goto done;
 402     }
 403     result = TRUE;
 404
 405 done:
 406     RegCloseKey(hKey);
 407     return result;
 408 }
 409
 410 BOOL DeleteValue(HWND hwnd, HKEY hKeyRoot, LPCWSTR keyPath, LPCWSTR valueName, BOOL showMessageBox)
 411 {
 412     BOOL result = FALSE;
 413     LONG lRet;
 414     HKEY hKey;
 415     LPCWSTR visibleValueName = valueName ? valueName : g_pszDefaultValueName;
 416     WCHAR empty = 0;
 417
 418     lRet = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_READ | KEY_SET_VALUE, &hKey);
 419     if (lRet != ERROR_SUCCESS) return FALSE;
 420
 421     if (showMessageBox)
 422     {
 423         if (messagebox(hwnd, MB_YESNO | MB_ICONEXCLAMATION, IDS_DELETE_BOX_TITLE, IDS_DELETE_BOX_TEXT, visibleValueName) != IDYES)
 424             goto done;
 425     }
 426
 427     lRet = RegDeleteValueW(hKey, valueName ? valueName : &empty);
 428     if (lRet != ERROR_SUCCESS && valueName) {
 429         error_code_messagebox(hwnd, IDS_BAD_VALUE, valueName);
 430     }
 431     if (lRet != ERROR_SUCCESS) goto done;
 432     result = TRUE;
 433
 434 done:
 435     RegCloseKey(hKey);
 436     return result;
 437 }
 438
 439 BOOL CreateValue(HWND hwnd, HKEY hKeyRoot, LPCWSTR keyPath, DWORD valueType, LPWSTR valueName)
 440 {
 441     LONG lRet = ERROR_SUCCESS;
 442     WCHAR newValue[256];
 443     DWORD valueDword = 0;
 444     BOOL result = FALSE;
 445     int valueNum;
 446     HKEY hKey;
 447
 448     lRet = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_READ | KEY_SET_VALUE, &hKey);
 449     if (lRet != ERROR_SUCCESS) {
 450         error_code_messagebox(hwnd, IDS_CREATE_VALUE_FAILED);
 451         return FALSE;
 452     }
 453
 454     if (!LoadStringW(GetModuleHandleW(0), IDS_NEWVALUE, newValue, COUNT_OF(newValue))) goto done;
 455
 456     /* try to find a name for the value being created (maximum = 100 attempts) */
 457     for (valueNum = 1; valueNum < 100; valueNum++) {
 458         wsprintfW(valueName, newValue, valueNum);
 459         lRet = RegQueryValueExW(hKey, valueName, 0, 0, 0, 0);
 460         if (lRet == ERROR_FILE_NOT_FOUND) break;
 461     }
 462     if (lRet != ERROR_FILE_NOT_FOUND) {
 463         error_code_messagebox(hwnd, IDS_CREATE_VALUE_FAILED);
 464         goto done;
 465     }
 466
 467     lRet = RegSetValueExW(hKey, valueName, 0, valueType, (BYTE*)&valueDword, sizeof(DWORD));
 468     if (lRet != ERROR_SUCCESS) {
 469         error_code_messagebox(hwnd, IDS_CREATE_VALUE_FAILED);
 470         goto done;
 471     }
 472     result = TRUE;
 473
 474 done:
 475     RegCloseKey(hKey);
 476     return result;
 477 }
 478
 479 BOOL RenameValue(HWND hwnd, HKEY hKeyRoot, LPCWSTR keyPath, LPCWSTR oldName, LPCWSTR newName)
 480 {
 481     LPWSTR value = NULL;
 482     DWORD type;
 483     LONG len, lRet;
 484     BOOL result = FALSE;
 485     HKEY hKey;
 486
 487     if (!oldName) return FALSE;
 488     if (!newName) return FALSE;
 489
 490     lRet = RegOpenKeyExW(hKeyRoot, keyPath, 0, KEY_READ | KEY_SET_VALUE, &hKey);
 491     if (lRet != ERROR_SUCCESS) {
 492         error_code_messagebox(hwnd, IDS_RENAME_VALUE_FAILED);
 493         return FALSE;
 494     }
 495     /* check if the value already exists */
 496     if (check_value(hwnd, hKey, newName)) {
 497         error_code_messagebox(hwnd, IDS_VALUE_EXISTS, oldName);
 498         goto done;
 499     }
 500     value = read_value(hwnd, hKey, oldName, &type, &len);
 501     if(!value) goto done;
 502     lRet = RegSetValueExW(hKey, newName, 0, type, (BYTE*)value, len);
 503     if (lRet != ERROR_SUCCESS) {
 504         error_code_messagebox(hwnd, IDS_RENAME_VALUE_FAILED);
 505         goto done;
 506     }
 507     lRet = RegDeleteValueW(hKey, oldName);
 508     if (lRet != ERROR_SUCCESS) {
 509         RegDeleteValueW(hKey, newName);
 510         error_code_messagebox(hwnd, IDS_RENAME_VALUE_FAILED);
 511         goto done;
 512     }
 513     result = TRUE;
 514
 515 done:
 516     HeapFree(GetProcessHeap(), 0, value);
 517     RegCloseKey(hKey);
 518     return result;
 519 }
 520
 521
 522 BOOL RenameKey(HWND hwnd, HKEY hRootKey, LPCWSTR keyPath, LPCWSTR newName)
 523 {
 524     LPWSTR parentPath = 0;
 525     LPCWSTR srcSubKey = 0;
 526     HKEY parentKey = 0;
 527     HKEY destKey = 0;
 528     BOOL result = FALSE;
 529     LONG lRet;
 530     DWORD disposition;
 531
 532     if (!keyPath || !newName) return FALSE;
 533
 534     if (!strrchrW(keyPath, '\\')) {
 535         parentKey = hRootKey;
 536         srcSubKey = keyPath;
 537     } else {
 538         LPWSTR srcSubKey_copy;
 539
 540         parentPath = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(keyPath)+1)*sizeof(WCHAR));
 541         lstrcpyW(parentPath, keyPath);
 542         srcSubKey_copy = strrchrW(parentPath, '\\');
 543         *srcSubKey_copy = 0;
 544         srcSubKey = srcSubKey_copy + 1;
 545         lRet = RegOpenKeyExW(hRootKey, parentPath, 0, KEY_READ | KEY_CREATE_SUB_KEY, &parentKey);
 546         if (lRet != ERROR_SUCCESS) {
 547             error_code_messagebox(hwnd, IDS_RENAME_KEY_FAILED);
 548             goto done;
 549         }
 550     }
 551
 552     /* The following fails if the old name is the same as the new name. */
 553     if (!lstrcmpW(srcSubKey, newName)) goto done;
 554
 555     lRet = RegCreateKeyExW(parentKey, newName, 0, NULL, REG_OPTION_NON_VOLATILE,
 556         KEY_WRITE, NULL /* FIXME */, &destKey, &disposition);
 557     if (disposition == REG_OPENED_EXISTING_KEY)
 558         lRet = ERROR_FILE_EXISTS;
 559     if (lRet != ERROR_SUCCESS) {
 560         error_code_messagebox(hwnd, IDS_KEY_EXISTS, srcSubKey);
 561         goto done;
 562     }
 563
 564     /* FIXME: SHCopyKey does not copy the security attributes */
 565     lRet = SHCopyKeyW(parentKey, srcSubKey, destKey, 0);
 566     if (lRet != ERROR_SUCCESS) {
 567         RegCloseKey(destKey);
 568         RegDeleteKeyW(parentKey, newName);
 569         error_code_messagebox(hwnd, IDS_RENAME_KEY_FAILED);
 570         goto done;
 571     }
 572
 573     lRet = SHDeleteKeyW(hRootKey, keyPath);
 574     if (lRet != ERROR_SUCCESS) {
 575         error_code_messagebox(hwnd, IDS_RENAME_KEY_FAILED);
 576         goto done;
 577     }
 578
 579     result = TRUE;
 580
 581 done:
 582     RegCloseKey(destKey);
 583     if (parentKey) {
 584         RegCloseKey(parentKey);
 585         HeapFree(GetProcessHeap(), 0, parentPath);
 586     }
 587     return result;
 588 }