base/applications/regedit/listview.c

   1 /*
   2  * Regedit listviews
   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 Street, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21 #include "regedit.h"
  22
  23 #define CX_ICON    16
  24 #define CY_ICON    16
  25 #define NUM_ICONS   2
  26
  27 int Image_String = 0;
  28 int Image_Bin = 0;
  29 INT iListViewSelect = -1;
  30
  31 typedef struct tagLINE_INFO
  32 {
  33     DWORD dwValType;
  34     LPWSTR name;
  35     void* val;
  36     size_t val_len;
  37 } LINE_INFO, *PLINE_INFO;
  38
  39 typedef struct tagSORT_INFO
  40 {
  41     INT  iSortingColumn;
  42     BOOL bSortAscending;
  43 } SORT_INFO, *PSORT_INFO;
  44
  45 /*******************************************************************************
  46  * Global and Local Variables:
  47  */
  48
  49 static INT g_iSortedColumn = 0;
  50
  51 #define MAX_LIST_COLUMNS (IDS_LIST_COLUMN_LAST - IDS_LIST_COLUMN_FIRST + 1)
  52 static const int default_column_widths[MAX_LIST_COLUMNS] = { 200, 175, 400 };
  53 static const int column_alignment[MAX_LIST_COLUMNS] = { LVCFMT_LEFT, LVCFMT_LEFT, LVCFMT_LEFT };
  54
  55 LPCWSTR GetValueName(HWND hwndLV, int iStartAt)
  56 {
  57     int item;
  58     LVITEMW LVItem;
  59     PLINE_INFO lineinfo;
  60
  61     /*
  62        if a new item is inserted, then no allocation,
  63        otherwise the heap block will be lost!
  64     */
  65     item = ListView_GetNextItem(hwndLV, iStartAt, LVNI_SELECTED);
  66     if (item == -1) return NULL;
  67
  68     /*
  69         Should be always TRUE anyways
  70     */
  71     LVItem.iItem = item;
  72     LVItem.iSubItem = 0;
  73     LVItem.mask = LVIF_PARAM;
  74     if (ListView_GetItem(hwndLV, &LVItem) == FALSE)
  75         return NULL;
  76
  77     lineinfo = (PLINE_INFO)LVItem.lParam;
  78     if (lineinfo == NULL)
  79         return NULL;
  80
  81     return lineinfo->name;
  82 }
  83
  84 VOID SetValueName(HWND hwndLV, LPCWSTR pszValueName)
  85 {
  86     INT i, c;
  87     LVFINDINFOW fi;
  88
  89     c = ListView_GetItemCount(hwndLV);
  90     for(i = 0; i < c; i++)
  91     {
  92         ListView_SetItemState(hwndLV, i, 0, LVIS_FOCUSED | LVIS_SELECTED);
  93     }
  94     if (pszValueName == NULL)
  95         i = 0;
  96     else
  97     {
  98         fi.flags    = LVFI_STRING;
  99         fi.psz      = pszValueName;
 100         i = ListView_FindItem(hwndLV, -1, &fi);
 101     }
 102     ListView_SetItemState(hwndLV, i, LVIS_FOCUSED | LVIS_SELECTED,
 103                           LVIS_FOCUSED | LVIS_SELECTED);
 104     iListViewSelect = i;
 105 }
 106
 107 BOOL IsDefaultValue(HWND hwndLV, int i)
 108 {
 109     PLINE_INFO lineinfo;
 110     LVITEMW Item;
 111
 112     Item.mask = LVIF_PARAM;
 113     Item.iItem = i;
 114     if(ListView_GetItem(hwndLV, &Item))
 115     {
 116         lineinfo = (PLINE_INFO)Item.lParam;
 117         return lineinfo && (!lineinfo->name || !wcscmp(lineinfo->name, L""));
 118     }
 119     return FALSE;
 120 }
 121
 122 /*******************************************************************************
 123  * Local module support methods
 124  */
 125 static void AddEntryToList(HWND hwndLV, LPWSTR Name, DWORD dwValType, void* ValBuf, DWORD dwCount, int Position, BOOL ValExists)
 126 {
 127     PLINE_INFO linfo;
 128     LVITEMW item;
 129     int index;
 130
 131     linfo = (PLINE_INFO)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(LINE_INFO) + dwCount);
 132     linfo->dwValType = dwValType;
 133     linfo->val_len = dwCount;
 134     if (dwCount > 0)
 135     {
 136         memcpy(&linfo[1], ValBuf, dwCount);
 137         linfo->val = &linfo[1];
 138     }
 139     linfo->name = _wcsdup(Name);
 140
 141     item.mask = LVIF_TEXT | LVIF_PARAM | LVIF_IMAGE;
 142     item.iItem = (Position == -1 ? 0: Position);
 143     item.iSubItem = 0;
 144     item.state = 0;
 145     item.stateMask = 0;
 146     item.pszText = Name;
 147     item.cchTextMax = (int)wcslen(item.pszText);
 148     if (item.cchTextMax == 0)
 149         item.pszText = LPSTR_TEXTCALLBACK;
 150     item.iImage = 0;
 151     item.lParam = (LPARAM)linfo;
 152     switch(dwValType)
 153     {
 154         case REG_SZ:
 155         case REG_EXPAND_SZ:
 156         case REG_MULTI_SZ:
 157             item.iImage = Image_String;
 158             break;
 159         default:
 160             item.iImage = Image_Bin;
 161             break;
 162     }
 163
 164     /*    item.lParam = (LPARAM)ValBuf; */
 165 #if (_WIN32_IE >= 0x0300)
 166     item.iIndent = 0;
 167 #endif
 168
 169     index = ListView_InsertItem(hwndLV, &item);
 170     if (index != -1)
 171     {
 172         switch (dwValType)
 173         {
 174         case REG_SZ:
 175         case REG_EXPAND_SZ:
 176             if(dwCount > 0)
 177             {
 178                 ListView_SetItemText(hwndLV, index, 2, ValBuf);
 179             }
 180             else if(!ValExists)
 181             {
 182                 WCHAR buffer[255];
 183                 /* load (value not set) string */
 184                 LoadStringW(hInst, IDS_VALUE_NOT_SET, buffer, COUNT_OF(buffer));
 185                 ListView_SetItemText(hwndLV, index, 2, buffer);
 186             }
 187             break;
 188         case REG_MULTI_SZ:
 189         {
 190             LPWSTR src, str;
 191             if(dwCount >= 2)
 192             {
 193                 src = (LPWSTR)ValBuf;
 194                 str = HeapAlloc(GetProcessHeap(), 0, dwCount + sizeof(WCHAR));
 195                 if(str != NULL)
 196                 {
 197                     *str = L'\0';
 198                     /* concatenate all srings */
 199                     while(*src != L'\0')
 200                     {
 201                         wcscat(str, src);
 202                         wcscat(str, L" ");
 203                         src += wcslen(src) + 1;
 204                     }
 205                     ListView_SetItemText(hwndLV, index, 2, str);
 206                     HeapFree(GetProcessHeap(), 0, str);
 207                 }
 208                 else
 209                     ListView_SetItemText(hwndLV, index, 2, L"");
 210             }
 211             else
 212                 ListView_SetItemText(hwndLV, index, 2, L"");
 213         }
 214         break;
 215         case REG_DWORD:
 216         {
 217             WCHAR buf[200];
 218             if(dwCount == sizeof(DWORD))
 219             {
 220                 wsprintf(buf, L"0x%08x (%u)", *(DWORD*)ValBuf, *(DWORD*)ValBuf);
 221             }
 222             else
 223             {
 224                 LoadStringW(hInst, IDS_INVALID_DWORD, buf, COUNT_OF(buf));
 225             }
 226             ListView_SetItemText(hwndLV, index, 2, buf);
 227         }
 228         /*            lpsRes = convertHexToDWORDStr(lpbData, dwLen); */
 229         break;
 230         default:
 231         {
 232             unsigned int i;
 233             LPBYTE pData = (LPBYTE)ValBuf;
 234             LPWSTR strBinary;
 235             if(dwCount > 0)
 236             {
 237                 strBinary = HeapAlloc(GetProcessHeap(), 0, (dwCount * sizeof(WCHAR) * 3) + sizeof(WCHAR));
 238                 for (i = 0; i < dwCount; i++)
 239                 {
 240                     wsprintf( strBinary + i*3, L"%02X ", pData[i] );
 241                 }
 242                 strBinary[dwCount * 3] = 0;
 243                 ListView_SetItemText(hwndLV, index, 2, strBinary);
 244                 HeapFree(GetProcessHeap(), 0, strBinary);
 245             }
 246             else
 247             {
 248                 WCHAR szText[128];
 249                 LoadStringW(hInst, IDS_BINARY_EMPTY, szText, COUNT_OF(szText));
 250                 ListView_SetItemText(hwndLV, index, 2, szText);
 251             }
 252         }
 253         break;
 254         }
 255     }
 256 }
 257
 258 static BOOL CreateListColumns(HWND hWndListView)
 259 {
 260     WCHAR szText[50];
 261     int index;
 262     LVCOLUMN lvC;
 263
 264     /* Create columns. */
 265     lvC.mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT | LVCF_SUBITEM;
 266     lvC.pszText = szText;
 267
 268     /* Load the column labels from the resource file. */
 269     for (index = 0; index < MAX_LIST_COLUMNS; index++)
 270     {
 271         lvC.iSubItem = index;
 272         lvC.cx = default_column_widths[index];
 273         lvC.fmt = column_alignment[index];
 274         LoadStringW(hInst, IDS_LIST_COLUMN_FIRST + index, szText, COUNT_OF(szText));
 275         if (ListView_InsertColumn(hWndListView, index, &lvC) == -1) return FALSE;
 276     }
 277     return TRUE;
 278 }
 279
 280 static BOOL InitListViewImageLists(HWND hwndLV)
 281 {
 282     HIMAGELIST himl;  /* handle to image list  */
 283     HICON hico;       /* handle to icon  */
 284
 285     /* Create the image list.  */
 286     if ((himl = ImageList_Create(CX_ICON, CY_ICON,
 287                                  ILC_MASK, 0, NUM_ICONS)) == NULL)
 288     {
 289         return FALSE;
 290     }
 291
 292     hico = LoadIconW(hInst, MAKEINTRESOURCEW(IDI_BIN));
 293     Image_Bin = ImageList_AddIcon(himl, hico);
 294
 295     hico = LoadIconW(hInst, MAKEINTRESOURCEW(IDI_STRING));
 296     Image_String = ImageList_AddIcon(himl, hico);
 297
 298     /* Fail if not all of the images were added.  */
 299     if (ImageList_GetImageCount(himl) < NUM_ICONS)
 300     {
 301         return FALSE;
 302     }
 303
 304     /* Associate the image list with the tree view control.  */
 305     (void)ListView_SetImageList(hwndLV, himl, LVSIL_SMALL);
 306
 307     return TRUE;
 308 }
 309
 310 /* OnGetDispInfo - processes the LVN_GETDISPINFO notification message.  */
 311
 312 static void OnGetDispInfo(NMLVDISPINFO* plvdi)
 313 {
 314     static WCHAR buffer[200];
 315
 316     plvdi->item.pszText = NULL;
 317     plvdi->item.cchTextMax = 0;
 318
 319     switch (plvdi->item.iSubItem)
 320     {
 321     case 0:
 322         LoadStringW(hInst, IDS_DEFAULT_VALUE_NAME, buffer, COUNT_OF(buffer));
 323         plvdi->item.pszText = buffer;
 324         break;
 325     case 1:
 326         switch (((LINE_INFO*)plvdi->item.lParam)->dwValType)
 327         {
 328             case REG_NONE:
 329                 plvdi->item.pszText = L"REG_NONE";
 330                 break;
 331             case REG_SZ:
 332                 plvdi->item.pszText = L"REG_SZ";
 333                 break;
 334             case REG_EXPAND_SZ:
 335                 plvdi->item.pszText = L"REG_EXPAND_SZ";
 336                 break;
 337             case REG_BINARY:
 338                 plvdi->item.pszText = L"REG_BINARY";
 339                 break;
 340             case REG_DWORD: /* REG_DWORD_LITTLE_ENDIAN */
 341                 plvdi->item.pszText = L"REG_DWORD";
 342                 break;
 343             case REG_DWORD_BIG_ENDIAN:
 344                 plvdi->item.pszText = L"REG_DWORD_BIG_ENDIAN";
 345                 break;
 346             case REG_LINK:
 347                 plvdi->item.pszText = L"REG_LINK";
 348                 break;
 349             case REG_MULTI_SZ:
 350                 plvdi->item.pszText = L"REG_MULTI_SZ";
 351                 break;
 352             case REG_RESOURCE_LIST:
 353                 plvdi->item.pszText = L"REG_RESOURCE_LIST";
 354                 break;
 355             case REG_FULL_RESOURCE_DESCRIPTOR:
 356                 plvdi->item.pszText = L"REG_FULL_RESOURCE_DESCRIPTOR";
 357                 break;
 358             case REG_RESOURCE_REQUIREMENTS_LIST:
 359                 plvdi->item.pszText = L"REG_RESOURCE_REQUIREMENTS_LIST";
 360                 break;
 361             case REG_QWORD: /* REG_QWORD_LITTLE_ENDIAN */
 362                 plvdi->item.pszText = L"REG_QWORD";
 363                 break;
 364             default:
 365             {
 366                 WCHAR buf2[200];
 367                 LoadStringW(hInst, IDS_UNKNOWN_TYPE, buf2, COUNT_OF(buf2));
 368                 wsprintf(buffer, buf2, ((LINE_INFO*)plvdi->item.lParam)->dwValType);
 369                 plvdi->item.pszText = buffer;
 370                 break;
 371             }
 372         }
 373         break;
 374     case 3:
 375         plvdi->item.pszText = L"";
 376         break;
 377     }
 378 }
 379
 380 static int CALLBACK CompareFunc(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
 381 {
 382     PSORT_INFO pSortInfo = (PSORT_INFO)lParamSort;
 383     LINE_INFO *l, *r;
 384     DWORD dw1, dw2;
 385     DWORDLONG qw1, qw2;
 386
 387     l = (LINE_INFO*)lParam1;
 388     r = (LINE_INFO*)lParam2;
 389
 390     if (pSortInfo->iSortingColumn == 1 && l->dwValType != r->dwValType)
 391     {
 392         /* Sort by type */
 393         if (pSortInfo->bSortAscending)
 394             return ((int)l->dwValType - (int)r->dwValType);
 395         else
 396             return ((int)r->dwValType - (int)l->dwValType);
 397     }
 398     if (pSortInfo->iSortingColumn == 2)
 399     {
 400         /* Sort by value */
 401         if (l->dwValType != r->dwValType)
 402         {
 403             if (pSortInfo->bSortAscending)
 404                 return ((int)l->dwValType - (int)r->dwValType);
 405             else
 406                 return ((int)r->dwValType - (int)l->dwValType);
 407         }
 408
 409         if (l->val == NULL && r->val == NULL)
 410             return 0;
 411
 412         if (pSortInfo->bSortAscending)
 413         {
 414             if (l->val == NULL)
 415                 return -1;
 416             if (r->val == NULL)
 417                 return 1;
 418         }
 419         else
 420         {
 421             if (l->val == NULL)
 422                 return 1;
 423             if (r->val == NULL)
 424                 return -1;
 425         }
 426
 427         switch(l->dwValType)
 428         {
 429             case REG_DWORD:
 430             {
 431                 dw1 = *(DWORD*)l->val;
 432                 dw2 = *(DWORD*)r->val;
 433                 if (pSortInfo->bSortAscending)
 434                     // return (dw1 > dw2 ? 1 : -1);
 435                     return ((int)dw1 - (int)dw2);
 436                 else
 437                     // return (dw1 > dw2 ? -1 : 1);
 438                     return ((int)dw2 - (int)dw1);
 439             }
 440
 441             case REG_QWORD: /* REG_QWORD_LITTLE_ENDIAN */
 442             {
 443                 qw1 = *(DWORDLONG*)l->val;
 444                 qw2 = *(DWORDLONG*)r->val;
 445                 if (pSortInfo->bSortAscending)
 446                     // return (qw1 > qw2 ? 1 : -1);
 447                     return ((int)qw1 - (int)qw2);
 448                 else
 449                     // return (qw1 > qw2 ? -1 : 1);
 450                     return ((int)qw2 - (int)qw1);
 451             }
 452
 453             default:
 454             {
 455                 INT nCompare = 0;
 456
 457                 if (pSortInfo->bSortAscending)
 458                 {
 459                     nCompare = memcmp(l->val, r->val, min(l->val_len, r->val_len));
 460                     if (nCompare == 0)
 461                         nCompare = l->val_len - r->val_len;
 462                 }
 463                 else
 464                 {
 465                     nCompare = memcmp(r->val, l->val, min(r->val_len, l->val_len));
 466                     if (nCompare == 0)
 467                         nCompare = r->val_len - l->val_len;
 468                 }
 469
 470                 return nCompare;
 471             }
 472         }
 473     }
 474
 475     /* Sort by name */
 476     return (pSortInfo->bSortAscending ? StrCmpLogicalW(l->name, r->name) : StrCmpLogicalW(r->name, l->name));
 477 }
 478
 479 static BOOL ListView_Sort(HWND hListView, int iSortingColumn, int iSortedColumn)
 480 {
 481     if ( (GetWindowLongPtr(hListView, GWL_STYLE) & ~LVS_NOSORTHEADER) &&
 482          (iSortingColumn >= 0) )
 483     {
 484         BOOL bSortAscending;
 485         SORT_INFO SortInfo;
 486
 487         HWND hHeader = ListView_GetHeader(hListView);
 488         HDITEM hColumn = {0};
 489
 490         /* If we are sorting according to another column, uninitialize the old one */
 491         if ( (iSortedColumn >= 0) && (iSortingColumn != iSortedColumn) )
 492         {
 493             hColumn.mask = HDI_FORMAT;
 494             Header_GetItem(hHeader, iSortedColumn, &hColumn);
 495             hColumn.fmt &= ~(HDF_SORTUP | HDF_SORTDOWN);
 496             Header_SetItem(hHeader, iSortedColumn, &hColumn);
 497         }
 498
 499         /* Get the sorting state of the new column */
 500         hColumn.mask = HDI_FORMAT;
 501         Header_GetItem(hHeader, iSortingColumn, &hColumn);
 502
 503         /*
 504          * Check whether we are sorting the list because the user clicked
 505          * on a column, or because we are refreshing the list:
 506          *
 507          * iSortedColumn >= 0 - User clicked on a column; holds the
 508          *                      old sorting column index.
 509          * iSortedColumn  < 0 - List being refreshed.
 510          */
 511         if (iSortedColumn >= 0)
 512         {
 513             /* Invert the sorting direction */
 514             bSortAscending = ((hColumn.fmt & HDF_SORTUP) == 0);
 515         }
 516         else
 517         {
 518             /*
 519              * If the sorting state of the column is uninitialized,
 520              * initialize it by default to ascending sorting.
 521              */
 522             if ((hColumn.fmt & (HDF_SORTUP | HDF_SORTDOWN)) == 0)
 523                 hColumn.fmt |= HDF_SORTUP;
 524
 525             /* Keep the same sorting direction */
 526             bSortAscending = ((hColumn.fmt & HDF_SORTUP) != 0);
 527         }
 528
 529         /* Set the new column sorting state */
 530         hColumn.fmt &= ~(bSortAscending ? HDF_SORTDOWN : HDF_SORTUP  );
 531         hColumn.fmt |=  (bSortAscending ? HDF_SORTUP   : HDF_SORTDOWN);
 532         Header_SetItem(hHeader, iSortingColumn, &hColumn);
 533
 534         /* Sort the list */
 535         SortInfo.iSortingColumn = iSortingColumn;
 536         SortInfo.bSortAscending = bSortAscending;
 537         return ListView_SortItems(hListView, CompareFunc, (LPARAM)&SortInfo);
 538     }
 539     else
 540         return TRUE;
 541 }
 542
 543 BOOL ListWndNotifyProc(HWND hWnd, WPARAM wParam, LPARAM lParam, BOOL *Result)
 544 {
 545     NMLVDISPINFO* Info;
 546     int iSortingColumn;
 547     UNREFERENCED_PARAMETER(wParam);
 548     *Result = TRUE;
 549     switch (((LPNMHDR)lParam)->code)
 550     {
 551     case LVN_GETDISPINFO:
 552         OnGetDispInfo((NMLVDISPINFO*)lParam);
 553         return TRUE;
 554     case LVN_COLUMNCLICK:
 555         iSortingColumn = ((LPNMLISTVIEW)lParam)->iSubItem;
 556         (void)ListView_Sort(hWnd, iSortingColumn, g_iSortedColumn);
 557         g_iSortedColumn = iSortingColumn;
 558         return TRUE;
 559     case NM_DBLCLK:
 560     case NM_RETURN:
 561     {
 562         SendMessageW(hFrameWnd, WM_COMMAND, MAKEWPARAM(ID_EDIT_MODIFY, 0), 0);
 563     }
 564     return TRUE;
 565     case NM_SETFOCUS:
 566         g_pChildWnd->nFocusPanel = 0;
 567         break;
 568     case LVN_BEGINLABELEDIT:
 569         Info = (NMLVDISPINFO*)lParam;
 570         if(Info)
 571         {
 572             PLINE_INFO lineinfo = (PLINE_INFO)Info->item.lParam;
 573             if(!lineinfo->name || !wcscmp(lineinfo->name, L""))
 574             {
 575                 *Result = TRUE;
 576             }
 577             else
 578             {
 579                 *Result = FALSE;
 580             }
 581         }
 582         else
 583             *Result = TRUE;
 584         return TRUE;
 585     case LVN_ENDLABELEDIT:
 586         Info = (NMLVDISPINFO*)lParam;
 587         if(Info && Info->item.pszText)
 588         {
 589             PLINE_INFO lineinfo = (PLINE_INFO)Info->item.lParam;
 590             if(!lineinfo->name || !wcscmp(lineinfo->name, L""))
 591             {
 592                 *Result = FALSE;
 593             }
 594             else
 595             {
 596                 if(wcslen(Info->item.pszText) == 0)
 597                 {
 598                     WCHAR msg[128], caption[128];
 599
 600                     LoadStringW(hInst, IDS_ERR_RENVAL_TOEMPTY, msg, COUNT_OF(msg));
 601                     LoadStringW(hInst, IDS_ERR_RENVAL_CAPTION, caption, COUNT_OF(caption));
 602                     MessageBoxW(0, msg, caption, 0);
 603                     *Result = TRUE;
 604                 }
 605                 else
 606                 {
 607                     HKEY hKeyRoot;
 608                     LPCWSTR keyPath;
 609                     LONG lResult;
 610
 611                     keyPath = GetItemPath(g_pChildWnd->hTreeWnd, 0, &hKeyRoot);
 612                     lResult = RenameValue(hKeyRoot, keyPath, Info->item.pszText, lineinfo->name);
 613                     lineinfo->name = realloc(lineinfo->name, (wcslen(Info->item.pszText)+1)*sizeof(WCHAR));
 614                     if (lineinfo->name != NULL)
 615                         wcscpy(lineinfo->name, Info->item.pszText);
 616
 617                     *Result = TRUE;
 618                     return (lResult == ERROR_SUCCESS);
 619                 }
 620             }
 621         }
 622         else
 623             *Result = TRUE;
 624
 625         return TRUE;
 626     }
 627     return FALSE;
 628 }
 629
 630 HWND CreateListView(HWND hwndParent, HMENU id)
 631 {
 632     RECT rcClient;
 633     HWND hwndLV;
 634
 635     /* Get the dimensions of the parent window's client area, and create the list view control. */
 636     GetClientRect(hwndParent, &rcClient);
 637     hwndLV = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEW, L"List View",
 638                              WS_VISIBLE | WS_CHILD | WS_TABSTOP | LVS_REPORT | LVS_EDITLABELS | LVS_SHOWSELALWAYS,
 639                              0, 0, rcClient.right, rcClient.bottom,
 640                              hwndParent, id, hInst, NULL);
 641     if (!hwndLV) return NULL;
 642
 643     /* Initialize the image list, and add items to the control. */
 644     if (!CreateListColumns(hwndLV)) goto fail;
 645     if (!InitListViewImageLists(hwndLV)) goto fail;
 646
 647     return hwndLV;
 648 fail:
 649     DestroyWindow(hwndLV);
 650     return NULL;
 651 }
 652
 653 void DestroyListView(HWND hwndLV)
 654 {
 655     INT count, i;
 656     LVITEMW item;
 657
 658     count = ListView_GetItemCount(hwndLV);
 659     for (i = 0; i < count; i++)
 660     {
 661         item.mask = LVIF_PARAM;
 662         item.iItem = i;
 663         (void)ListView_GetItem(hwndLV, &item);
 664         free(((LINE_INFO*)item.lParam)->name);
 665         HeapFree(GetProcessHeap(), 0, (void*)item.lParam);
 666     }
 667
 668 }
 669
 670 BOOL RefreshListView(HWND hwndLV, HKEY hKey, LPCWSTR keyPath)
 671 {
 672     DWORD max_sub_key_len;
 673     DWORD max_val_name_len;
 674     DWORD max_val_size;
 675     DWORD val_count;
 676     HKEY hNewKey;
 677     LONG errCode;
 678     INT i, c;
 679     BOOL AddedDefault = FALSE;
 680
 681     if (!hwndLV) return FALSE;
 682
 683     (void)ListView_EditLabel(hwndLV, -1);
 684
 685     SendMessageW(hwndLV, WM_SETREDRAW, FALSE, 0);
 686     DestroyListView(hwndLV);
 687
 688     (void)ListView_DeleteAllItems(hwndLV);
 689
 690     if(!hKey) return FALSE;
 691
 692     errCode = RegOpenKeyExW(hKey, keyPath, 0, KEY_READ, &hNewKey);
 693     if (errCode != ERROR_SUCCESS) return FALSE;
 694
 695     /* get size information and resize the buffers if necessary */
 696     errCode = RegQueryInfoKeyW(hNewKey, NULL, NULL, NULL, NULL, &max_sub_key_len, NULL,
 697                                &val_count, &max_val_name_len, &max_val_size, NULL, NULL);
 698
 699     if (errCode == ERROR_SUCCESS)
 700     {
 701         WCHAR* ValName = HeapAlloc(GetProcessHeap(), 0, ++max_val_name_len * sizeof(WCHAR));
 702         DWORD dwValNameLen = max_val_name_len;
 703         BYTE* ValBuf = HeapAlloc(GetProcessHeap(), 0, max_val_size + sizeof(WCHAR));
 704         DWORD dwValSize = max_val_size;
 705         DWORD dwIndex = 0L;
 706         DWORD dwValType;
 707         /*                if (RegQueryValueExW(hNewKey, NULL, NULL, &dwValType, ValBuf, &dwValSize) == ERROR_SUCCESS) { */
 708         /*                    AddEntryToList(hwndLV, L"(Default)", dwValType, ValBuf, dwValSize); */
 709         /*                } */
 710         /*                dwValSize = max_val_size; */
 711         while (RegEnumValueW(hNewKey, dwIndex, ValName, &dwValNameLen, NULL, &dwValType, ValBuf, &dwValSize) == ERROR_SUCCESS)
 712         {
 713             /* Add a terminating 0 character. Usually this is only necessary for strings. */
 714             ValBuf[dwValSize] = ValBuf[dwValSize + 1] = 0;
 715
 716             AddEntryToList(hwndLV, ValName, dwValType, ValBuf, dwValSize, -1, TRUE);
 717             dwValNameLen = max_val_name_len;
 718             dwValSize = max_val_size;
 719             dwValType = 0L;
 720             ++dwIndex;
 721             if(!wcscmp(ValName, L""))
 722             {
 723                 AddedDefault = TRUE;
 724             }
 725         }
 726         HeapFree(GetProcessHeap(), 0, ValBuf);
 727         HeapFree(GetProcessHeap(), 0, ValName);
 728     }
 729     RegCloseKey(hNewKey);
 730
 731     if(!AddedDefault)
 732     {
 733         AddEntryToList(hwndLV, L"", REG_SZ, NULL, 0, 0, FALSE);
 734     }
 735     c = ListView_GetItemCount(hwndLV);
 736     for(i = 0; i < c; i++)
 737     {
 738         ListView_SetItemState(hwndLV, i, 0, LVIS_FOCUSED | LVIS_SELECTED);
 739     }
 740     ListView_SetItemState(hwndLV, iListViewSelect,
 741                           LVIS_FOCUSED | LVIS_SELECTED,
 742                           LVIS_FOCUSED | LVIS_SELECTED);
 743     (void)ListView_Sort(hwndLV, g_iSortedColumn, -1);
 744     SendMessageW(hwndLV, WM_SETREDRAW, TRUE, 0);
 745
 746     return TRUE;
 747 }