dlls/shell32/control.c

   1 /* Control Panel management
   2  *
   3  * Copyright 2001 Eric Pouech
   4  * Copyright 2008 Owen Rudge
   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 #include <assert.h>
  22 #include <stdarg.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "wingdi.h"
  30 #include "winuser.h"
  31 #include "winreg.h"
  32 #include "wine/debug.h"
  33 #include "cpl.h"
  34 #include "wine/unicode.h"
  35 #include "commctrl.h"
  36
  37 #define NO_SHLWAPI_REG
  38 #include "shlwapi.h"
  39
  40 #include "cpanel.h"
  41 #include "shresdef.h"
  42 #include "shell32_main.h"
  43
  44 #define MAX_STRING_LEN      1024
  45
  46 WINE_DEFAULT_DEBUG_CHANNEL(shlctrl);
  47
  48 void Control_UnloadApplet(CPlApplet* applet)
  49 {
  50     unsigned    i;
  51
  52     for (i = 0; i < applet->count; i++)
  53         applet->proc(applet->hWnd, CPL_STOP, i, applet->info[i].data);
  54
  55     if (applet->proc) applet->proc(applet->hWnd, CPL_EXIT, 0L, 0L);
  56     FreeLibrary(applet->hModule);
  57     list_remove( &applet->entry );
  58     HeapFree(GetProcessHeap(), 0, applet->cmd);
  59     HeapFree(GetProcessHeap(), 0, applet);
  60 }
  61
  62 CPlApplet*      Control_LoadApplet(HWND hWnd, LPCWSTR cmd, CPanel* panel)
  63 {
  64     CPlApplet*  applet;
  65     DWORD len;
  66     unsigned    i;
  67     CPLINFO     info;
  68     NEWCPLINFOW newinfo;
  69
  70     if (!(applet = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*applet))))
  71        return applet;
  72
  73     len = ExpandEnvironmentStringsW(cmd, NULL, 0);
  74     if (len > 0)
  75     {
  76         if (!(applet->cmd = HeapAlloc(GetProcessHeap(), 0, (len+1) * sizeof(WCHAR))))
  77         {
  78             WARN("Cannot allocate memory for applet path\n");
  79             goto theError;
  80         }
  81         ExpandEnvironmentStringsW(cmd, applet->cmd, len+1);
  82     }
  83     else
  84     {
  85         WARN("Cannot expand applet path\n");
  86         goto theError;
  87     }
  88
  89     applet->hWnd = hWnd;
  90
  91     if (!(applet->hModule = LoadLibraryW(applet->cmd))) {
  92         WARN("Cannot load control panel applet %s\n", debugstr_w(applet->cmd));
  93         goto theError;
  94     }
  95     if (!(applet->proc = (APPLET_PROC)GetProcAddress(applet->hModule, "CPlApplet"))) {
  96         WARN("Not a valid control panel applet %s\n", debugstr_w(applet->cmd));
  97         goto theError;
  98     }
  99     if (!applet->proc(hWnd, CPL_INIT, 0L, 0L)) {
 100         WARN("Init of applet has failed\n");
 101         goto theError;
 102     }
 103     if ((applet->count = applet->proc(hWnd, CPL_GETCOUNT, 0L, 0L)) == 0) {
 104         WARN("No subprogram in applet\n");
 105         applet->proc(applet->hWnd, CPL_EXIT, 0, 0);
 106         goto theError;
 107     }
 108
 109     applet = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, applet,
 110                          FIELD_OFFSET( CPlApplet, info[applet->count] ));
 111
 112     for (i = 0; i < applet->count; i++) {
 113        ZeroMemory(&newinfo, sizeof(newinfo));
 114        newinfo.dwSize = sizeof(NEWCPLINFOA);
 115        applet->info[i].helpfile[0] = 0;
 116        /* proc is supposed to return a null value upon success for
 117         * CPL_INQUIRE and CPL_NEWINQUIRE
 118         * However, real drivers don't seem to behave like this
 119         * So, use introspection rather than return value
 120         */
 121        applet->proc(hWnd, CPL_INQUIRE, i, (LPARAM)&info);
 122        applet->info[i].data = info.lData;
 123        if (info.idIcon != CPL_DYNAMIC_RES)
 124            applet->info[i].icon = LoadIconW(applet->hModule, MAKEINTRESOURCEW(info.idIcon));
 125        if (info.idName != CPL_DYNAMIC_RES)
 126            LoadStringW(applet->hModule, info.idName,
 127                        applet->info[i].name, sizeof(applet->info[i].name) / sizeof(WCHAR));
 128        if (info.idInfo != CPL_DYNAMIC_RES)
 129            LoadStringW(applet->hModule, info.idInfo,
 130                        applet->info[i].info, sizeof(applet->info[i].info) / sizeof(WCHAR));
 131
 132        /* some broken control panels seem to return incorrect values in CPL_INQUIRE,
 133           but proper data in CPL_NEWINQUIRE. if we get an empty string or a null
 134           icon, see what we can get from CPL_NEWINQUIRE */
 135
 136        if (!applet->info[i].name[0]) info.idName = CPL_DYNAMIC_RES;
 137
 138        /* zero-length szInfo may not be a buggy applet, but it doesn't hurt for us
 139           to check anyway */
 140
 141        if (!applet->info[i].info[0]) info.idInfo = CPL_DYNAMIC_RES;
 142
 143        if (applet->info[i].icon == NULL)
 144            info.idIcon = CPL_DYNAMIC_RES;
 145
 146        if ((info.idIcon == CPL_DYNAMIC_RES) || (info.idName == CPL_DYNAMIC_RES) ||
 147            (info.idInfo == CPL_DYNAMIC_RES)) {
 148            applet->proc(hWnd, CPL_NEWINQUIRE, i, (LPARAM)&newinfo);
 149
 150            applet->info[i].data = newinfo.lData;
 151            if (info.idIcon == CPL_DYNAMIC_RES) {
 152                if (!newinfo.hIcon) WARN("couldn't get icon for applet %u\n", i);
 153                applet->info[i].icon = newinfo.hIcon;
 154            }
 155            if (newinfo.dwSize == sizeof(NEWCPLINFOW)) {
 156                if (info.idName == CPL_DYNAMIC_RES)
 157                    memcpy(applet->info[i].name, newinfo.szName, sizeof(newinfo.szName));
 158                if (info.idInfo == CPL_DYNAMIC_RES)
 159                    memcpy(applet->info[i].info, newinfo.szInfo, sizeof(newinfo.szInfo));
 160                memcpy(applet->info[i].helpfile, newinfo.szHelpFile, sizeof(newinfo.szHelpFile));
 161            } else {
 162                if (info.idName == CPL_DYNAMIC_RES)
 163                    MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szName,
 164                                        sizeof(((LPNEWCPLINFOA)&newinfo)->szName) / sizeof(CHAR),
 165                                        applet->info[i].name, sizeof(applet->info[i].name) / sizeof(WCHAR));
 166                if (info.idInfo == CPL_DYNAMIC_RES)
 167                    MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szInfo,
 168                                        sizeof(((LPNEWCPLINFOA)&newinfo)->szInfo) / sizeof(CHAR),
 169                                        applet->info[i].info, sizeof(applet->info[i].info) / sizeof(WCHAR));
 170                MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szHelpFile,
 171                                    sizeof(((LPNEWCPLINFOA)&newinfo)->szHelpFile) / sizeof(CHAR),
 172                                    applet->info[i].helpfile,
 173                                    sizeof(applet->info[i].helpfile) / sizeof(WCHAR));
 174            }
 175        }
 176     }
 177
 178     list_add_head( &panel->applets, &applet->entry );
 179     return applet;
 180
 181  theError:
 182     FreeLibrary(applet->hModule);
 183     HeapFree(GetProcessHeap(), 0, applet->cmd);
 184     HeapFree(GetProcessHeap(), 0, applet);
 185     return NULL;
 186 }
 187
 188 #define IDC_LISTVIEW        1000
 189 #define IDC_STATUSBAR       1001
 190
 191 #define NUM_COLUMNS            2
 192 #define LISTVIEW_DEFSTYLE   (WS_CHILD | WS_VISIBLE | WS_TABSTOP |\
 193                              LVS_SORTASCENDING | LVS_AUTOARRANGE | LVS_SINGLESEL)
 194
 195 static BOOL Control_CreateListView (CPanel *panel)
 196 {
 197     RECT ws, sb;
 198     WCHAR empty_string[] = {0};
 199     WCHAR buf[MAX_STRING_LEN];
 200     LVCOLUMNW lvc;
 201
 202     /* Create list view */
 203     GetClientRect(panel->hWndStatusBar, &sb);
 204     GetClientRect(panel->hWnd, &ws);
 205
 206     panel->hWndListView = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW,
 207                           empty_string, LISTVIEW_DEFSTYLE | LVS_ICON,
 208                           0, 0, ws.right - ws.left, ws.bottom - ws.top -
 209                           (sb.bottom - sb.top), panel->hWnd,
 210                           (HMENU) IDC_LISTVIEW, panel->hInst, NULL);
 211
 212     if (!panel->hWndListView)
 213         return FALSE;
 214
 215     /* Create image lists for list view */
 216     panel->hImageListSmall = ImageList_Create(GetSystemMetrics(SM_CXSMICON),
 217         GetSystemMetrics(SM_CYSMICON), ILC_COLOR32 | ILC_MASK, 1, 1);
 218     panel->hImageListLarge = ImageList_Create(GetSystemMetrics(SM_CXICON),
 219         GetSystemMetrics(SM_CYICON), ILC_COLOR32 | ILC_MASK, 1, 1);
 220
 221     SendMessageW(panel->hWndListView, LVM_SETIMAGELIST, LVSIL_SMALL, (LPARAM)panel->hImageListSmall);
 222     SendMessageW(panel->hWndListView, LVM_SETIMAGELIST, LVSIL_NORMAL, (LPARAM)panel->hImageListLarge);
 223
 224     /* Create columns for list view */
 225     lvc.mask = LVCF_FMT | LVCF_TEXT | LVCF_SUBITEM | LVCF_WIDTH;
 226     lvc.pszText = buf;
 227     lvc.fmt = LVCFMT_LEFT;
 228
 229     /* Name column */
 230     lvc.iSubItem = 0;
 231     lvc.cx = (ws.right - ws.left) / 3;
 232     LoadStringW(shell32_hInstance, IDS_CPANEL_NAME, buf, sizeof(buf) / sizeof(buf[0]));
 233
 234     if (ListView_InsertColumnW(panel->hWndListView, 0, &lvc) == -1)
 235         return FALSE;
 236
 237     /* Description column */
 238     lvc.iSubItem = 1;
 239     lvc.cx = ((ws.right - ws.left) / 3) * 2;
 240     LoadStringW(shell32_hInstance, IDS_CPANEL_DESCRIPTION, buf, sizeof(buf) /
 241         sizeof(buf[0]));
 242
 243     if (ListView_InsertColumnW(panel->hWndListView, 1, &lvc) == -1)
 244         return FALSE;
 245
 246     return(TRUE);
 247 }
 248
 249 static void      Control_WndProc_Create(HWND hWnd, const CREATESTRUCTW* cs)
 250 {
 251    CPanel* panel = cs->lpCreateParams;
 252    HMENU hMenu, hSubMenu;
 253    CPlApplet* applet;
 254    MENUITEMINFOW mii;
 255    unsigned int i;
 256    int menucount, index;
 257    CPlItem *item;
 258    LVITEMW lvItem;
 259    INITCOMMONCONTROLSEX icex;
 260    INT sb_parts;
 261    int itemidx;
 262
 263    SetWindowLongPtrW(hWnd, 0, (LONG_PTR)panel);
 264    panel->hWnd = hWnd;
 265
 266    /* Initialise common control DLL */
 267    icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
 268    icex.dwICC = ICC_LISTVIEW_CLASSES | ICC_BAR_CLASSES;
 269    InitCommonControlsEx(&icex);
 270
 271    /* create the status bar */
 272    if (!(panel->hWndStatusBar = CreateStatusWindowW(WS_CHILD | WS_VISIBLE | CCS_BOTTOM | SBARS_SIZEGRIP, NULL, hWnd, IDC_STATUSBAR)))
 273        return;
 274
 275    sb_parts = -1;
 276    SendMessageW(panel->hWndStatusBar, SB_SETPARTS, 1, (LPARAM) &sb_parts);
 277
 278    /* create the list view */
 279    if (!Control_CreateListView(panel))
 280        return;
 281
 282    hMenu = LoadMenuW(shell32_hInstance, MAKEINTRESOURCEW(MENU_CPANEL));
 283
 284    /* insert menu items for applets */
 285    hSubMenu = GetSubMenu(hMenu, 0);
 286    menucount = 0;
 287
 288    LIST_FOR_EACH_ENTRY( applet, &panel->applets, CPlApplet, entry )
 289    {
 290       for (i = 0; i < applet->count; i++) {
 291          /* set up a CPlItem for this particular subprogram */
 292          item = HeapAlloc(GetProcessHeap(), 0, sizeof(CPlItem));
 293
 294          if (!item)
 295             continue;
 296
 297          item->applet = applet;
 298          item->id = i;
 299
 300          mii.cbSize = sizeof(MENUITEMINFOW);
 301          mii.fMask = MIIM_ID | MIIM_STRING | MIIM_DATA;
 302          mii.dwTypeData = applet->info[i].name;
 303          mii.cch = sizeof(applet->info[i].name) / sizeof(WCHAR);
 304          mii.wID = IDM_CPANEL_APPLET_BASE + menucount;
 305          mii.dwItemData = (ULONG_PTR)item;
 306
 307          if (InsertMenuItemW(hSubMenu, menucount, TRUE, &mii)) {
 308             /* add the list view item */
 309             HICON icon = applet->info[i].icon;
 310             if (!icon) icon = LoadImageW( 0, (LPCWSTR)IDI_WINLOGO, IMAGE_ICON, 0, 0, LR_SHARED );
 311             index = ImageList_AddIcon(panel->hImageListLarge, icon);
 312             ImageList_AddIcon(panel->hImageListSmall, icon);
 313
 314             lvItem.mask = LVIF_IMAGE | LVIF_TEXT | LVIF_PARAM;
 315             lvItem.iItem = menucount;
 316             lvItem.iSubItem = 0;
 317             lvItem.pszText = applet->info[i].name;
 318             lvItem.iImage = index;
 319             lvItem.lParam = (LPARAM) item;
 320
 321             itemidx = ListView_InsertItemW(panel->hWndListView, &lvItem);
 322
 323             /* add the description */
 324             ListView_SetItemTextW(panel->hWndListView, itemidx, 1, applet->info[i].info);
 325
 326             /* update menu bar, increment count */
 327             DrawMenuBar(hWnd);
 328             menucount++;
 329          }
 330       }
 331    }
 332
 333    panel->total_subprogs = menucount;
 334
 335    /* check the "large items" icon in the View menu */
 336    hSubMenu = GetSubMenu(hMenu, 1);
 337    CheckMenuRadioItem(hSubMenu, FCIDM_SHVIEW_BIGICON, FCIDM_SHVIEW_REPORTVIEW,
 338       FCIDM_SHVIEW_BIGICON, MF_BYCOMMAND);
 339
 340    SetMenu(hWnd, hMenu);
 341 }
 342
 343 static void Control_FreeCPlItems(HWND hWnd, CPanel *panel)
 344 {
 345     HMENU hMenu, hSubMenu;
 346     MENUITEMINFOW mii;
 347     unsigned int i;
 348
 349     /* get the File menu */
 350     hMenu = GetMenu(hWnd);
 351
 352     if (!hMenu)
 353         return;
 354
 355     hSubMenu = GetSubMenu(hMenu, 0);
 356
 357     if (!hSubMenu)
 358         return;
 359
 360     /* loop and free the item data */
 361     for (i = IDM_CPANEL_APPLET_BASE; i <= IDM_CPANEL_APPLET_BASE + panel->total_subprogs; i++)
 362     {
 363         mii.cbSize = sizeof(MENUITEMINFOW);
 364         mii.fMask = MIIM_DATA;
 365
 366         if (!GetMenuItemInfoW(hSubMenu, i, FALSE, &mii))
 367             continue;
 368
 369         HeapFree(GetProcessHeap(), 0, (LPVOID) mii.dwItemData);
 370     }
 371 }
 372
 373 static void Control_UpdateListViewStyle(CPanel *panel, UINT style, UINT id)
 374 {
 375     HMENU hMenu, hSubMenu;
 376
 377     SetWindowLongW(panel->hWndListView, GWL_STYLE, LISTVIEW_DEFSTYLE | style);
 378
 379     /* update the menu */
 380     hMenu = GetMenu(panel->hWnd);
 381     hSubMenu = GetSubMenu(hMenu, 1);
 382
 383     CheckMenuRadioItem(hSubMenu, FCIDM_SHVIEW_BIGICON, FCIDM_SHVIEW_REPORTVIEW,
 384         id, MF_BYCOMMAND);
 385 }
 386
 387 static CPlItem* Control_GetCPlItem_From_MenuID(HWND hWnd, UINT id)
 388 {
 389     HMENU hMenu, hSubMenu;
 390     MENUITEMINFOW mii;
 391
 392     /* retrieve the CPlItem structure from the menu item data */
 393     hMenu = GetMenu(hWnd);
 394
 395     if (!hMenu)
 396         return NULL;
 397
 398     hSubMenu = GetSubMenu(hMenu, 0);
 399
 400     if (!hSubMenu)
 401         return NULL;
 402
 403     mii.cbSize = sizeof(MENUITEMINFOW);
 404     mii.fMask = MIIM_DATA;
 405
 406     if (!GetMenuItemInfoW(hSubMenu, id, FALSE, &mii))
 407         return NULL;
 408
 409     return (CPlItem *) mii.dwItemData;
 410 }
 411
 412 static CPlItem* Control_GetCPlItem_From_ListView(CPanel *panel)
 413 {
 414     LVITEMW lvItem;
 415     int selitem;
 416
 417     selitem = SendMessageW(panel->hWndListView, LVM_GETNEXTITEM, -1, LVNI_FOCUSED
 418         | LVNI_SELECTED);
 419
 420     if (selitem != -1)
 421     {
 422         lvItem.iItem = selitem;
 423         lvItem.mask = LVIF_PARAM;
 424
 425         if (SendMessageW(panel->hWndListView, LVM_GETITEMW, 0, (LPARAM) &lvItem))
 426             return (CPlItem *) lvItem.lParam;
 427     }
 428
 429     return NULL;
 430 }
 431
 432 static void Control_StartApplet(HWND hWnd, CPlItem *item)
 433 {
 434     WCHAR verbOpen[] = {'c','p','l','o','p','e','n',0};
 435     WCHAR format[] = {'@','%','d',0};
 436     WCHAR param[MAX_PATH];
 437
 438     /* execute the applet if item is valid */
 439     if (item)
 440     {
 441         wsprintfW(param, format, item->id);
 442         ShellExecuteW(hWnd, verbOpen, item->applet->cmd, param, NULL, SW_SHOW);
 443     }
 444 }
 445
 446 static LRESULT WINAPI   Control_WndProc(HWND hWnd, UINT wMsg,
 447                                         WPARAM lParam1, LPARAM lParam2)
 448 {
 449    CPanel*      panel = (CPanel*)GetWindowLongPtrW(hWnd, 0);
 450
 451    if (panel || wMsg == WM_CREATE) {
 452       switch (wMsg) {
 453       case WM_CREATE:
 454          Control_WndProc_Create(hWnd, (CREATESTRUCTW*)lParam2);
 455          return 0;
 456       case WM_DESTROY:
 457          {
 458              CPlApplet *applet, *next;
 459              LIST_FOR_EACH_ENTRY_SAFE( applet, next, &panel->applets, CPlApplet, entry )
 460                  Control_UnloadApplet(applet);
 461          }
 462          Control_FreeCPlItems(hWnd, panel);
 463          PostQuitMessage(0);
 464          break;
 465       case WM_COMMAND:
 466          switch (LOWORD(lParam1))
 467          {
 468              case IDM_CPANEL_EXIT:
 469                  SendMessageW(hWnd, WM_CLOSE, 0, 0);
 470                  return 0;
 471
 472              case IDM_CPANEL_ABOUT:
 473                  {
 474                      WCHAR appName[MAX_STRING_LEN];
 475                      HICON icon = LoadImageW(shell32_hInstance, MAKEINTRESOURCEW(IDI_SHELL_CONTROL_PANEL),
 476                                              IMAGE_ICON, 48, 48, LR_SHARED);
 477
 478                      LoadStringW(shell32_hInstance, IDS_CPANEL_TITLE, appName,
 479                          sizeof(appName) / sizeof(appName[0]));
 480                      ShellAboutW(hWnd, appName, NULL, icon);
 481
 482                      return 0;
 483                  }
 484
 485              case FCIDM_SHVIEW_BIGICON:
 486                  Control_UpdateListViewStyle(panel, LVS_ICON, FCIDM_SHVIEW_BIGICON);
 487                  return 0;
 488
 489              case FCIDM_SHVIEW_SMALLICON:
 490                  Control_UpdateListViewStyle(panel, LVS_SMALLICON, FCIDM_SHVIEW_SMALLICON);
 491                  return 0;
 492
 493              case FCIDM_SHVIEW_LISTVIEW:
 494                  Control_UpdateListViewStyle(panel, LVS_LIST, FCIDM_SHVIEW_LISTVIEW);
 495                  return 0;
 496
 497              case FCIDM_SHVIEW_REPORTVIEW:
 498                  Control_UpdateListViewStyle(panel, LVS_REPORT, FCIDM_SHVIEW_REPORTVIEW);
 499                  return 0;
 500
 501              default:
 502                  /* check if this is an applet */
 503                  if ((LOWORD(lParam1) >= IDM_CPANEL_APPLET_BASE) &&
 504                      (LOWORD(lParam1) <= IDM_CPANEL_APPLET_BASE + panel->total_subprogs))
 505                  {
 506                      Control_StartApplet(hWnd, Control_GetCPlItem_From_MenuID(hWnd, LOWORD(lParam1)));
 507                      return 0;
 508                  }
 509
 510                  break;
 511          }
 512
 513          break;
 514
 515       case WM_NOTIFY:
 516       {
 517           LPNMHDR nmh = (LPNMHDR) lParam2;
 518
 519           switch (nmh->idFrom)
 520           {
 521               case IDC_LISTVIEW:
 522                   switch (nmh->code)
 523                   {
 524                       case NM_RETURN:
 525                       case NM_DBLCLK:
 526                       {
 527                           Control_StartApplet(hWnd, Control_GetCPlItem_From_ListView(panel));
 528                           return 0;
 529                       }
 530                       case LVN_ITEMCHANGED:
 531                       {
 532                           CPlItem *item = Control_GetCPlItem_From_ListView(panel);
 533
 534                           /* update the status bar if item is valid */
 535                           if (item)
 536                               SetWindowTextW(panel->hWndStatusBar, item->applet->info[item->id].info);
 537                           else
 538                               SetWindowTextW(panel->hWndStatusBar, NULL);
 539
 540                           return 0;
 541                       }
 542                   }
 543
 544                   break;
 545           }
 546
 547           break;
 548       }
 549
 550       case WM_MENUSELECT:
 551           /* check if this is an applet */
 552           if ((LOWORD(lParam1) >= IDM_CPANEL_APPLET_BASE) &&
 553               (LOWORD(lParam1) <= IDM_CPANEL_APPLET_BASE + panel->total_subprogs))
 554           {
 555               CPlItem *item = Control_GetCPlItem_From_MenuID(hWnd, LOWORD(lParam1));
 556
 557               /* update the status bar if item is valid */
 558               if (item)
 559                   SetWindowTextW(panel->hWndStatusBar, item->applet->info[item->id].info);
 560           }
 561           else if ((HIWORD(lParam1) == 0xFFFF) && (lParam2 == 0))
 562           {
 563               /* reset status bar description to that of the selected icon */
 564               CPlItem *item = Control_GetCPlItem_From_ListView(panel);
 565
 566               if (item)
 567                   SetWindowTextW(panel->hWndStatusBar, item->applet->info[item->id].info);
 568               else
 569                   SetWindowTextW(panel->hWndStatusBar, NULL);
 570
 571               return 0;
 572           }
 573           else
 574               SetWindowTextW(panel->hWndStatusBar, NULL);
 575
 576           return 0;
 577
 578       case WM_SIZE:
 579       {
 580           HDWP hdwp;
 581           RECT sb;
 582
 583           hdwp = BeginDeferWindowPos(2);
 584
 585           if (hdwp == NULL)
 586               break;
 587
 588           GetClientRect(panel->hWndStatusBar, &sb);
 589
 590           hdwp = DeferWindowPos(hdwp, panel->hWndListView, NULL, 0, 0,
 591               LOWORD(lParam2), HIWORD(lParam2) - (sb.bottom - sb.top),
 592               SWP_NOZORDER | SWP_NOMOVE);
 593
 594           if (hdwp == NULL)
 595               break;
 596
 597           hdwp = DeferWindowPos(hdwp, panel->hWndStatusBar, NULL, 0, 0,
 598               LOWORD(lParam2), LOWORD(lParam1), SWP_NOZORDER | SWP_NOMOVE);
 599
 600           if (hdwp != NULL)
 601               EndDeferWindowPos(hdwp);
 602
 603           return 0;
 604       }
 605      }
 606    }
 607
 608    return DefWindowProcW(hWnd, wMsg, lParam1, lParam2);
 609 }
 610
 611 static void    Control_DoInterface(CPanel* panel, HWND hWnd, HINSTANCE hInst)
 612 {
 613     WNDCLASSEXW wc;
 614     MSG         msg;
 615     WCHAR appName[MAX_STRING_LEN];
 616     const WCHAR className[] = {'S','h','e','l','l','_','C','o','n','t','r','o',
 617         'l','_','W','n','d','C','l','a','s','s',0};
 618
 619     LoadStringW(shell32_hInstance, IDS_CPANEL_TITLE, appName, sizeof(appName) / sizeof(appName[0]));
 620
 621     wc.cbSize = sizeof(wc);
 622     wc.style = CS_HREDRAW|CS_VREDRAW;
 623     wc.lpfnWndProc = Control_WndProc;
 624     wc.cbClsExtra = 0;
 625     wc.cbWndExtra = sizeof(CPlApplet*);
 626     wc.hInstance = panel->hInst = hInst;
 627     wc.hIcon = LoadIconW( shell32_hInstance, MAKEINTRESOURCEW(IDI_SHELL_CONTROL_PANEL) );
 628     wc.hCursor = LoadCursorW( 0, (LPWSTR)IDC_ARROW );
 629     wc.hbrBackground = GetStockObject(WHITE_BRUSH);
 630     wc.lpszMenuName = NULL;
 631     wc.lpszClassName = className;
 632     wc.hIconSm = LoadImageW( shell32_hInstance, MAKEINTRESOURCEW(IDI_SHELL_CONTROL_PANEL), IMAGE_ICON,
 633                              GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON), LR_SHARED);
 634
 635     if (!RegisterClassExW(&wc)) return;
 636
 637     CreateWindowExW(0, wc.lpszClassName, appName,
 638                     WS_OVERLAPPEDWINDOW | WS_VISIBLE,
 639                     CW_USEDEFAULT, CW_USEDEFAULT,
 640                     CW_USEDEFAULT, CW_USEDEFAULT,
 641                     hWnd, NULL, hInst, panel);
 642     if (!panel->hWnd) return;
 643
 644     while (GetMessageW(&msg, panel->hWnd, 0, 0)) {
 645         TranslateMessage(&msg);
 646         DispatchMessageW(&msg);
 647     }
 648 }
 649
 650 static void Control_RegisterRegistryApplets(HWND hWnd, CPanel *panel, HKEY hkey_root, LPCWSTR szRepPath)
 651 {
 652     WCHAR name[MAX_PATH];
 653     WCHAR value[MAX_PATH];
 654     HKEY hkey;
 655
 656     if (RegOpenKeyW(hkey_root, szRepPath, &hkey) == ERROR_SUCCESS)
 657     {
 658         int idx = 0;
 659
 660         for(;; ++idx)
 661         {
 662             DWORD nameLen = MAX_PATH;
 663             DWORD valueLen = MAX_PATH;
 664
 665             if (RegEnumValueW(hkey, idx, name, &nameLen, NULL, NULL, (LPBYTE)value, &valueLen) != ERROR_SUCCESS)
 666                 break;
 667
 668             Control_LoadApplet(hWnd, value, panel);
 669         }
 670         RegCloseKey(hkey);
 671     }
 672 }
 673
 674 static  void    Control_DoWindow(CPanel* panel, HWND hWnd, HINSTANCE hInst)
 675 {
 676     HANDLE              h;
 677     WIN32_FIND_DATAW    fd;
 678     WCHAR               buffer[MAX_PATH];
 679     static const WCHAR wszAllCpl[] = {'*','.','c','p','l',0};
 680     static const WCHAR wszRegPath[] = {'S','O','F','T','W','A','R','E','\\','M','i','c','r','o','s','o','f','t',
 681             '\\','W','i','n','d','o','w','s','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n',
 682             '\\','C','o','n','t','r','o','l',' ','P','a','n','e','l','\\','C','p','l','s',0};
 683     WCHAR *p;
 684
 685     /* first add .cpl files in the system directory */
 686     GetSystemDirectoryW( buffer, MAX_PATH );
 687     p = buffer + strlenW(buffer);
 688     *p++ = '\\';
 689     lstrcpyW(p, wszAllCpl);
 690
 691     if ((h = FindFirstFileW(buffer, &fd)) != INVALID_HANDLE_VALUE) {
 692         do {
 693            lstrcpyW(p, fd.cFileName);
 694            Control_LoadApplet(hWnd, buffer, panel);
 695         } while (FindNextFileW(h, &fd));
 696         FindClose(h);
 697     }
 698
 699     /* now check for cpls in the registry */
 700     Control_RegisterRegistryApplets(hWnd, panel, HKEY_LOCAL_MACHINE, wszRegPath);
 701     Control_RegisterRegistryApplets(hWnd, panel, HKEY_CURRENT_USER, wszRegPath);
 702
 703     Control_DoInterface(panel, hWnd, hInst);
 704 }
 705
 706 static  void    Control_DoLaunch(CPanel* panel, HWND hWnd, LPCWSTR wszCmd)
 707    /* forms to parse:
 708     *   foo.cpl,@sp,str
 709     *   foo.cpl,@sp
 710     *   foo.cpl,,str
 711     *   foo.cpl @sp
 712     *   foo.cpl str
 713     *   "a path\foo.cpl"
 714     */
 715 {
 716     LPWSTR      buffer;
 717     LPWSTR      beg = NULL;
 718     LPWSTR      end;
 719     WCHAR       ch;
 720     LPWSTR       ptr;
 721     signed      sp = -1;
 722     LPWSTR      extraPmtsBuf = NULL;
 723     LPWSTR      extraPmts = NULL;
 724     BOOL        quoted = FALSE;
 725     CPlApplet *applet;
 726
 727     buffer = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(wszCmd) + 1) * sizeof(*wszCmd));
 728     if (!buffer) return;
 729
 730     end = lstrcpyW(buffer, wszCmd);
 731
 732     for (;;) {
 733         ch = *end;
 734         if (ch == '"') quoted = !quoted;
 735         if (!quoted && (ch == ' ' || ch == ',' || ch == '\0')) {
 736             *end = '\0';
 737             if (beg) {
 738                 if (*beg == '@') {
 739                     sp = atoiW(beg + 1);
 740                 } else if (*beg == '\0') {
 741                     sp = -1;
 742                 } else {
 743                     extraPmtsBuf = beg;
 744                 }
 745             }
 746             if (ch == '\0') break;
 747             beg = end + 1;
 748             if (ch == ' ') while (end[1] == ' ') end++;
 749         }
 750         end++;
 751     }
 752     while ((ptr = StrChrW(buffer, '"')))
 753         memmove(ptr, ptr+1, lstrlenW(ptr)*sizeof(WCHAR));
 754
 755     /* now check for any quotes in extraPmtsBuf and remove */
 756     if (extraPmtsBuf != NULL)
 757     {
 758         beg = end = extraPmtsBuf;
 759         quoted = FALSE;
 760
 761         for (;;) {
 762             ch = *end;
 763             if (ch == '"') quoted = !quoted;
 764             if (!quoted && (ch == ' ' || ch == ',' || ch == '\0')) {
 765                 *end = '\0';
 766                 if (beg) {
 767                     if (*beg != '\0') {
 768                         extraPmts = beg;
 769                     }
 770                 }
 771                 if (ch == '\0') break;
 772                 beg = end + 1;
 773                 if (ch == ' ') while (end[1] == ' ') end++;
 774             }
 775             end++;
 776         }
 777
 778         while ((ptr = StrChrW(extraPmts, '"')))
 779             memmove(ptr, ptr+1, lstrlenW(ptr)*sizeof(WCHAR));
 780
 781         if (extraPmts == NULL)
 782             extraPmts = extraPmtsBuf;
 783     }
 784
 785     /* Now check if there had been a numerical value in the extra params */
 786     if ((extraPmts) && (*extraPmts == '@') && (sp == -1)) {
 787         sp = atoiW(extraPmts + 1);
 788     }
 789
 790     TRACE("cmd %s, extra %s, sp %d\n", debugstr_w(buffer), debugstr_w(extraPmts), sp);
 791
 792     applet = Control_LoadApplet(hWnd, buffer, panel);
 793     if (applet)
 794     {
 795         /* we've been given a textual parameter (or none at all) */
 796         if (sp == -1) {
 797             while ((++sp) != applet->count) {
 798                 TRACE("sp %d, name %s\n", sp, debugstr_w(applet->info[sp].name));
 799
 800                 if (StrCmpIW(extraPmts, applet->info[sp].name) == 0)
 801                     break;
 802             }
 803         }
 804
 805         if (sp >= applet->count) {
 806             WARN("Out of bounds (%u >= %u), setting to 0\n", sp, applet->count);
 807             sp = 0;
 808         }
 809
 810         if (!applet->proc(applet->hWnd, CPL_STARTWPARMSW, sp, (LPARAM)extraPmts))
 811             applet->proc(applet->hWnd, CPL_DBLCLK, sp, applet->info[sp].data);
 812
 813         Control_UnloadApplet(applet);
 814     }
 815
 816     HeapFree(GetProcessHeap(), 0, buffer);
 817 }
 818
 819 /*************************************************************************
 820  * Control_RunDLLW                      [SHELL32.@]
 821  *
 822  */
 823 void WINAPI Control_RunDLLW(HWND hWnd, HINSTANCE hInst, LPCWSTR cmd, DWORD nCmdShow)
 824 {
 825     CPanel      panel;
 826
 827     TRACE("(%p, %p, %s, 0x%08x)\n",
 828           hWnd, hInst, debugstr_w(cmd), nCmdShow);
 829
 830     memset(&panel, 0, sizeof(panel));
 831     list_init( &panel.applets );
 832
 833     if (!cmd || !*cmd) {
 834         Control_DoWindow(&panel, hWnd, hInst);
 835     } else {
 836         Control_DoLaunch(&panel, hWnd, cmd);
 837     }
 838 }
 839
 840 /*************************************************************************
 841  * Control_RunDLLA                      [SHELL32.@]
 842  *
 843  */
 844 void WINAPI Control_RunDLLA(HWND hWnd, HINSTANCE hInst, LPCSTR cmd, DWORD nCmdShow)
 845 {
 846     DWORD len = MultiByteToWideChar(CP_ACP, 0, cmd, -1, NULL, 0 );
 847     LPWSTR wszCmd = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 848     if (wszCmd && MultiByteToWideChar(CP_ACP, 0, cmd, -1, wszCmd, len ))
 849     {
 850         Control_RunDLLW(hWnd, hInst, wszCmd, nCmdShow);
 851     }
 852     HeapFree(GetProcessHeap(), 0, wszCmd);
 853 }
 854
 855 /*************************************************************************
 856  * Control_FillCache_RunDLLW                    [SHELL32.@]
 857  *
 858  */
 859 HRESULT WINAPI Control_FillCache_RunDLLW(HWND hWnd, HANDLE hModule, DWORD w, DWORD x)
 860 {
 861     FIXME("%p %p 0x%08x 0x%08x stub\n", hWnd, hModule, w, x);
 862     return S_OK;
 863 }
 864
 865 /*************************************************************************
 866  * Control_FillCache_RunDLLA                    [SHELL32.@]
 867  *
 868  */
 869 HRESULT WINAPI Control_FillCache_RunDLLA(HWND hWnd, HANDLE hModule, DWORD w, DWORD x)
 870 {
 871     return Control_FillCache_RunDLLW(hWnd, hModule, w, x);
 872 }
 873
 874 /*************************************************************************
 875  * CallCPLEntry16                               [SHELL32.166]
 876  *
 877  * called by desk.cpl on "Advanced" with:
 878  * hMod("DeskCp16.Dll"), pFunc("CplApplet"), 0, 1, 0xc, 0
 879  *
 880  */
 881 DWORD WINAPI CallCPLEntry16(HMODULE hMod, FARPROC pFunc, DWORD dw3, DWORD dw4, DWORD dw5, DWORD dw6)
 882 {
 883     FIXME("(%p, %p, %08x, %08x, %08x, %08x): stub.\n", hMod, pFunc, dw3, dw4, dw5, dw6);
 884     return 0x0deadbee;
 885 }