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 CPlApplet*      Control_UnloadApplet(CPlApplet* applet)
  49 {
  50     unsigned    i;
  51     CPlApplet*  next;
  52
  53     for (i = 0; i < applet->count; i++) {
  54         if (!applet->info[i].dwSize) continue;
  55         applet->proc(applet->hWnd, CPL_STOP, i, applet->info[i].lData);
  56     }
  57     if (applet->proc) applet->proc(applet->hWnd, CPL_EXIT, 0L, 0L);
  58     FreeLibrary(applet->hModule);
  59     next = applet->next;
  60     HeapFree(GetProcessHeap(), 0, applet->cmd);
  61     HeapFree(GetProcessHeap(), 0, applet);
  62     return next;
  63 }
  64
  65 CPlApplet*      Control_LoadApplet(HWND hWnd, LPCWSTR cmd, CPanel* panel)
  66 {
  67     CPlApplet*  applet;
  68     unsigned    i;
  69     CPLINFO     info;
  70     NEWCPLINFOW newinfo;
  71
  72     if (!(applet = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*applet))))
  73        return applet;
  74
  75     applet->hWnd = hWnd;
  76
  77     if (!(applet->hModule = LoadLibraryW(cmd))) {
  78         WARN("Cannot load control panel applet %s\n", debugstr_w(cmd));
  79         goto theError;
  80     }
  81     if (!(applet->proc = (APPLET_PROC)GetProcAddress(applet->hModule, "CPlApplet"))) {
  82         WARN("Not a valid control panel applet %s\n", debugstr_w(cmd));
  83         goto theError;
  84     }
  85     if (!applet->proc(hWnd, CPL_INIT, 0L, 0L)) {
  86         WARN("Init of applet has failed\n");
  87         goto theError;
  88     }
  89     if ((applet->count = applet->proc(hWnd, CPL_GETCOUNT, 0L, 0L)) == 0) {
  90         WARN("No subprogram in applet\n");
  91         goto theError;
  92     }
  93
  94     applet = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, applet,
  95                          sizeof(*applet) + (applet->count - 1) * sizeof(NEWCPLINFOW));
  96
  97     if (!(applet->cmd = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(cmd)+1) * sizeof(WCHAR)))) {
  98         WARN("Cannot allocate memory for applet path\n");
  99         goto theError;
 100     }
 101
 102     lstrcpyW(applet->cmd, cmd);
 103
 104     for (i = 0; i < applet->count; i++) {
 105        ZeroMemory(&newinfo, sizeof(newinfo));
 106        newinfo.dwSize = sizeof(NEWCPLINFOA);
 107        applet->info[i].dwSize = sizeof(NEWCPLINFOW);
 108        applet->info[i].dwFlags = 0;
 109        applet->info[i].dwHelpContext = 0;
 110        applet->info[i].szHelpFile[0] = '\0';
 111        /* proc is supposed to return a null value upon success for
 112         * CPL_INQUIRE and CPL_NEWINQUIRE
 113         * However, real drivers don't seem to behave like this
 114         * So, use introspection rather than return value
 115         */
 116        applet->proc(hWnd, CPL_INQUIRE, i, (LPARAM)&info);
 117        applet->info[i].lData = info.lData;
 118        if (info.idIcon != CPL_DYNAMIC_RES)
 119            applet->info[i].hIcon = LoadIconW(applet->hModule,
 120                                              MAKEINTRESOURCEW(info.idIcon));
 121        if (info.idName != CPL_DYNAMIC_RES)
 122            LoadStringW(applet->hModule, info.idName,
 123                        applet->info[i].szName, sizeof(applet->info[i].szName) / sizeof(WCHAR));
 124        if (info.idInfo != CPL_DYNAMIC_RES)
 125            LoadStringW(applet->hModule, info.idInfo,
 126                        applet->info[i].szInfo, sizeof(applet->info[i].szInfo) / sizeof(WCHAR));
 127
 128        /* some broken control panels seem to return incorrect values in CPL_INQUIRE,
 129           but proper data in CPL_NEWINQUIRE. if we get an empty string or a null
 130           icon, see what we can get from CPL_NEWINQUIRE */
 131
 132        if ((applet->info[i].szName == 0) || (lstrlenW(applet->info[i].szName) == 0))
 133            info.idName = CPL_DYNAMIC_RES;
 134
 135        /* zero-length szInfo may not be a buggy applet, but it doesn't hurt for us
 136           to check anyway */
 137
 138        if ((applet->info[i].szInfo == 0) || (lstrlenW(applet->info[i].szInfo) == 0))
 139            info.idInfo = CPL_DYNAMIC_RES;
 140
 141        if (applet->info[i].hIcon == NULL)
 142            info.idIcon = CPL_DYNAMIC_RES;
 143
 144        if ((info.idIcon == CPL_DYNAMIC_RES) || (info.idName == CPL_DYNAMIC_RES) ||
 145            (info.idInfo == CPL_DYNAMIC_RES)) {
 146            applet->proc(hWnd, CPL_NEWINQUIRE, i, (LPARAM)&newinfo);
 147
 148            applet->info[i].dwFlags = newinfo.dwFlags;
 149            applet->info[i].dwHelpContext = newinfo.dwHelpContext;
 150            applet->info[i].lData = 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].hIcon = newinfo.hIcon;
 154            }
 155            if (newinfo.dwSize == sizeof(NEWCPLINFOW)) {
 156                if (info.idName == CPL_DYNAMIC_RES)
 157                    memcpy(applet->info[i].szName, newinfo.szName, sizeof(newinfo.szName));
 158                if (info.idInfo == CPL_DYNAMIC_RES)
 159                    memcpy(applet->info[i].szInfo, newinfo.szInfo, sizeof(newinfo.szInfo));
 160                memcpy(applet->info[i].szHelpFile, 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].szName,
 166                                        sizeof(applet->info[i].szName) / sizeof(WCHAR));
 167                if (info.idInfo == CPL_DYNAMIC_RES)
 168                    MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szInfo,
 169                                        sizeof(((LPNEWCPLINFOA)&newinfo)->szInfo) / sizeof(CHAR),
 170                                        applet->info[i].szInfo,
 171                                        sizeof(applet->info[i].szInfo) / sizeof(WCHAR));
 172                MultiByteToWideChar(CP_ACP, 0, ((LPNEWCPLINFOA)&newinfo)->szHelpFile,
 173                                    sizeof(((LPNEWCPLINFOA)&newinfo)->szHelpFile) / sizeof(CHAR),
 174                                    applet->info[i].szHelpFile,
 175                                    sizeof(applet->info[i].szHelpFile) / sizeof(WCHAR));
 176            }
 177        }
 178     }
 179
 180     applet->next = panel->first;
 181     panel->first = applet;
 182
 183     return applet;
 184
 185  theError:
 186     Control_UnloadApplet(applet);
 187     return NULL;
 188 }
 189
 190 #define IDC_LISTVIEW        1000
 191 #define IDC_STATUSBAR       1001
 192
 193 #define NUM_COLUMNS            2
 194 #define LISTVIEW_DEFSTYLE   (WS_CHILD | WS_VISIBLE | WS_TABSTOP |\
 195                              LVS_SORTASCENDING | LVS_AUTOARRANGE | LVS_SINGLESEL)
 196
 197 static BOOL Control_CreateListView (CPanel *panel)
 198 {
 199     RECT ws, sb;
 200     WCHAR empty_string[] = {0};
 201     WCHAR buf[MAX_STRING_LEN];
 202     LVCOLUMNW lvc;
 203
 204     /* Create list view */
 205     GetClientRect(panel->hWndStatusBar, &sb);
 206     GetClientRect(panel->hWnd, &ws);
 207
 208     panel->hWndListView = CreateWindowExW(WS_EX_CLIENTEDGE, WC_LISTVIEWW,
 209                           empty_string, LISTVIEW_DEFSTYLE | LVS_ICON,
 210                           0, 0, ws.right - ws.left, ws.bottom - ws.top -
 211                           (sb.bottom - sb.top), panel->hWnd,
 212                           (HMENU) IDC_LISTVIEW, panel->hInst, NULL);
 213
 214     if (!panel->hWndListView)
 215         return FALSE;
 216
 217     /* Create image lists for list view */
 218     panel->hImageListSmall = ImageList_Create(GetSystemMetrics(SM_CXSMICON),
 219         GetSystemMetrics(SM_CYSMICON), ILC_MASK, 1, 1);
 220     panel->hImageListLarge = ImageList_Create(GetSystemMetrics(SM_CXICON),
 221         GetSystemMetrics(SM_CYICON), ILC_MASK, 1, 1);
 222
 223     SendMessageW(panel->hWndListView, LVM_SETIMAGELIST, LVSIL_SMALL, (LPARAM)panel->hImageListSmall);
 224     SendMessageW(panel->hWndListView, LVM_SETIMAGELIST, LVSIL_NORMAL, (LPARAM)panel->hImageListLarge);
 225
 226     /* Create columns for list view */
 227     lvc.mask = LVCF_FMT | LVCF_TEXT | LVCF_SUBITEM | LVCF_WIDTH;
 228     lvc.pszText = buf;
 229     lvc.fmt = LVCFMT_LEFT;
 230
 231     /* Name column */
 232     lvc.iSubItem = 0;
 233     lvc.cx = (ws.right - ws.left) / 3;
 234     LoadStringW(shell32_hInstance, IDS_CPANEL_NAME, buf, sizeof(buf) / sizeof(buf[0]));
 235
 236     if (ListView_InsertColumnW(panel->hWndListView, 0, &lvc) == -1)
 237         return FALSE;
 238
 239     /* Description column */
 240     lvc.iSubItem = 1;
 241     lvc.cx = ((ws.right - ws.left) / 3) * 2;
 242     LoadStringW(shell32_hInstance, IDS_CPANEL_DESCRIPTION, buf, sizeof(buf) /
 243         sizeof(buf[0]));
 244
 245     if (ListView_InsertColumnW(panel->hWndListView, 1, &lvc) == -1)
 246         return FALSE;
 247
 248     return(TRUE);
 249 }
 250
 251 static void      Control_WndProc_Create(HWND hWnd, const CREATESTRUCTW* cs)
 252 {
 253    CPanel* panel = cs->lpCreateParams;
 254    HMENU hMenu, hSubMenu;
 255    CPlApplet* applet;
 256    MENUITEMINFOW mii;
 257    unsigned int i;
 258    int menucount, index;
 259    CPlItem *item;
 260    LVITEMW lvItem;
 261    INITCOMMONCONTROLSEX icex;
 262    INT sb_parts;
 263    int itemidx;
 264
 265    SetWindowLongPtrW(hWnd, 0, (LONG_PTR)panel);
 266    panel->hWnd = hWnd;
 267
 268    /* Initialise common control DLL */
 269    icex.dwSize = sizeof(INITCOMMONCONTROLSEX);
 270    icex.dwICC = ICC_LISTVIEW_CLASSES | ICC_BAR_CLASSES;
 271    InitCommonControlsEx(&icex);
 272
 273    /* create the status bar */
 274    if (!(panel->hWndStatusBar = CreateStatusWindowW(WS_CHILD | WS_VISIBLE | CCS_BOTTOM | SBARS_SIZEGRIP, NULL, hWnd, IDC_STATUSBAR)))
 275        return;
 276
 277    sb_parts = -1;
 278    SendMessageW(panel->hWndStatusBar, SB_SETPARTS, 1, (LPARAM) &sb_parts);
 279
 280    /* create the list view */
 281    if (!Control_CreateListView(panel))
 282        return;
 283
 284    hMenu = LoadMenuW(shell32_hInstance, MAKEINTRESOURCEW(MENU_CPANEL));
 285
 286    /* insert menu items for applets */
 287    hSubMenu = GetSubMenu(hMenu, 0);
 288    menucount = 0;
 289
 290    for (applet = panel->first; applet; applet = applet->next) {
 291       for (i = 0; i < applet->count; i++) {
 292          if (!applet->info[i].dwSize)
 293             continue;
 294
 295          /* set up a CPlItem for this particular subprogram */
 296          item = HeapAlloc(GetProcessHeap(), 0, sizeof(CPlItem));
 297
 298          if (!item)
 299             continue;
 300
 301          item->applet = applet;
 302          item->id = i;
 303
 304          mii.cbSize = sizeof(MENUITEMINFOW);
 305          mii.fMask = MIIM_ID | MIIM_STRING | MIIM_DATA;
 306          mii.dwTypeData = applet->info[i].szName;
 307          mii.cch = sizeof(applet->info[i].szName) / sizeof(applet->info[i].szName[0]);
 308          mii.wID = IDM_CPANEL_APPLET_BASE + menucount;
 309          mii.dwItemData = (ULONG_PTR)item;
 310
 311          if (InsertMenuItemW(hSubMenu, menucount, TRUE, &mii)) {
 312             /* add the list view item */
 313             index = ImageList_AddIcon(panel->hImageListLarge, applet->info[i].hIcon);
 314             ImageList_AddIcon(panel->hImageListSmall, applet->info[i].hIcon);
 315
 316             lvItem.mask = LVIF_IMAGE | LVIF_TEXT | LVIF_PARAM;
 317             lvItem.iItem = menucount;
 318             lvItem.iSubItem = 0;
 319             lvItem.pszText = applet->info[i].szName;
 320             lvItem.iImage = index;
 321             lvItem.lParam = (LPARAM) item;
 322
 323             itemidx = ListView_InsertItemW(panel->hWndListView, &lvItem);
 324
 325             /* add the description */
 326             ListView_SetItemTextW(panel->hWndListView, itemidx, 1,
 327                 applet->info[i].szInfo);
 328
 329             /* update menu bar, increment count */
 330             DrawMenuBar(hWnd);
 331             menucount++;
 332          }
 333       }
 334    }
 335
 336    panel->total_subprogs = menucount;
 337
 338    /* check the "large items" icon in the View menu */
 339    hSubMenu = GetSubMenu(hMenu, 1);
 340    CheckMenuRadioItem(hSubMenu, FCIDM_SHVIEW_BIGICON, FCIDM_SHVIEW_REPORTVIEW,
 341       FCIDM_SHVIEW_BIGICON, MF_BYCOMMAND);
 342
 343    SetMenu(hWnd, hMenu);
 344 }
 345
 346 static void Control_FreeCPlItems(HWND hWnd, CPanel *panel)
 347 {
 348     HMENU hMenu, hSubMenu;
 349     MENUITEMINFOW mii;
 350     unsigned int i;
 351
 352     /* get the File menu */
 353     hMenu = GetMenu(hWnd);
 354
 355     if (!hMenu)
 356         return;
 357
 358     hSubMenu = GetSubMenu(hMenu, 0);
 359
 360     if (!hSubMenu)
 361         return;
 362
 363     /* loop and free the item data */
 364     for (i = IDM_CPANEL_APPLET_BASE; i <= IDM_CPANEL_APPLET_BASE + panel->total_subprogs; i++)
 365     {
 366         mii.cbSize = sizeof(MENUITEMINFOW);
 367         mii.fMask = MIIM_DATA;
 368
 369         if (!GetMenuItemInfoW(hSubMenu, i, FALSE, &mii))
 370             continue;
 371
 372         HeapFree(GetProcessHeap(), 0, (LPVOID) mii.dwItemData);
 373     }
 374 }
 375
 376 static void Control_UpdateListViewStyle(CPanel *panel, UINT style, UINT id)
 377 {
 378     HMENU hMenu, hSubMenu;
 379
 380     SetWindowLongW(panel->hWndListView, GWL_STYLE, LISTVIEW_DEFSTYLE | style);
 381
 382     /* update the menu */
 383     hMenu = GetMenu(panel->hWnd);
 384     hSubMenu = GetSubMenu(hMenu, 1);
 385
 386     CheckMenuRadioItem(hSubMenu, FCIDM_SHVIEW_BIGICON, FCIDM_SHVIEW_REPORTVIEW,
 387         id, MF_BYCOMMAND);
 388 }
 389
 390 static CPlItem* Control_GetCPlItem_From_MenuID(HWND hWnd, UINT id)
 391 {
 392     HMENU hMenu, hSubMenu;
 393     MENUITEMINFOW mii;
 394
 395     /* retrieve the CPlItem structure from the menu item data */
 396     hMenu = GetMenu(hWnd);
 397
 398     if (!hMenu)
 399         return NULL;
 400
 401     hSubMenu = GetSubMenu(hMenu, 0);
 402
 403     if (!hSubMenu)
 404         return NULL;
 405
 406     mii.cbSize = sizeof(MENUITEMINFOW);
 407     mii.fMask = MIIM_DATA;
 408
 409     if (!GetMenuItemInfoW(hSubMenu, id, FALSE, &mii))
 410         return NULL;
 411
 412     return (CPlItem *) mii.dwItemData;
 413 }
 414
 415 static CPlItem* Control_GetCPlItem_From_ListView(CPanel *panel)
 416 {
 417     LVITEMW lvItem;
 418     int selitem;
 419
 420     selitem = SendMessageW(panel->hWndListView, LVM_GETNEXTITEM, -1, LVNI_FOCUSED
 421         | LVNI_SELECTED);
 422
 423     if (selitem != -1)
 424     {
 425         lvItem.iItem = selitem;
 426         lvItem.mask = LVIF_PARAM;
 427
 428         if (SendMessageW(panel->hWndListView, LVM_GETITEMW, 0, (LPARAM) &lvItem))
 429             return (CPlItem *) lvItem.lParam;
 430     }
 431
 432     return NULL;
 433 }
 434
 435 static void Control_StartApplet(HWND hWnd, CPlItem *item)
 436 {
 437     WCHAR verbOpen[] = {'c','p','l','o','p','e','n',0};
 438     WCHAR format[] = {'@','%','d',0};
 439     WCHAR param[MAX_PATH];
 440
 441     /* execute the applet if item is valid */
 442     if (item)
 443     {
 444         wsprintfW(param, format, item->id);
 445         ShellExecuteW(hWnd, verbOpen, item->applet->cmd, param, NULL, SW_SHOW);
 446     }
 447 }
 448
 449 static LRESULT WINAPI   Control_WndProc(HWND hWnd, UINT wMsg,
 450                                         WPARAM lParam1, LPARAM lParam2)
 451 {
 452    CPanel*      panel = (CPanel*)GetWindowLongPtrW(hWnd, 0);
 453
 454    if (panel || wMsg == WM_CREATE) {
 455       switch (wMsg) {
 456       case WM_CREATE:
 457          Control_WndProc_Create(hWnd, (CREATESTRUCTW*)lParam2);
 458          return 0;
 459       case WM_DESTROY:
 460          {
 461             CPlApplet*  applet = panel->first;
 462             while (applet)
 463                applet = Control_UnloadApplet(applet);
 464          }
 465          Control_FreeCPlItems(hWnd, panel);
 466          PostQuitMessage(0);
 467          break;
 468       case WM_COMMAND:
 469          switch (LOWORD(lParam1))
 470          {
 471              case IDM_CPANEL_EXIT:
 472                  SendMessageW(hWnd, WM_CLOSE, 0, 0);
 473                  return 0;
 474
 475              case IDM_CPANEL_ABOUT:
 476                  {
 477                      WCHAR appName[MAX_STRING_LEN];
 478
 479                      LoadStringW(shell32_hInstance, IDS_CPANEL_TITLE, appName,
 480                          sizeof(appName) / sizeof(appName[0]));
 481                      ShellAboutW(hWnd, appName, NULL, NULL);
 482
 483                      return 0;
 484                  }
 485
 486              case FCIDM_SHVIEW_BIGICON:
 487                  Control_UpdateListViewStyle(panel, LVS_ICON, FCIDM_SHVIEW_BIGICON);
 488                  return 0;
 489
 490              case FCIDM_SHVIEW_SMALLICON:
 491                  Control_UpdateListViewStyle(panel, LVS_SMALLICON, FCIDM_SHVIEW_SMALLICON);
 492                  return 0;
 493
 494              case FCIDM_SHVIEW_LISTVIEW:
 495                  Control_UpdateListViewStyle(panel, LVS_LIST, FCIDM_SHVIEW_LISTVIEW);
 496                  return 0;
 497
 498              case FCIDM_SHVIEW_REPORTVIEW:
 499                  Control_UpdateListViewStyle(panel, LVS_REPORT, FCIDM_SHVIEW_REPORTVIEW);
 500                  return 0;
 501
 502              default:
 503                  /* check if this is an applet */
 504                  if ((LOWORD(lParam1) >= IDM_CPANEL_APPLET_BASE) &&
 505                      (LOWORD(lParam1) <= IDM_CPANEL_APPLET_BASE + panel->total_subprogs))
 506                  {
 507                      Control_StartApplet(hWnd, Control_GetCPlItem_From_MenuID(hWnd, LOWORD(lParam1)));
 508                      return 0;
 509                  }
 510
 511                  break;
 512          }
 513
 514          break;
 515
 516       case WM_NOTIFY:
 517       {
 518           LPNMHDR nmh = (LPNMHDR) lParam2;
 519
 520           switch (nmh->idFrom)
 521           {
 522               case IDC_LISTVIEW:
 523                   switch (nmh->code)
 524                   {
 525                       case NM_RETURN:
 526                       case NM_DBLCLK:
 527                       {
 528                           Control_StartApplet(hWnd, Control_GetCPlItem_From_ListView(panel));
 529                           return 0;
 530                       }
 531                       case LVN_ITEMCHANGED:
 532                       {
 533                           CPlItem *item = Control_GetCPlItem_From_ListView(panel);
 534
 535                           /* update the status bar if item is valid */
 536                           if (item)
 537                               SetWindowTextW(panel->hWndStatusBar,
 538                                   item->applet->info[item->id].szInfo);
 539                           else
 540                               SetWindowTextW(panel->hWndStatusBar, NULL);
 541
 542                           return 0;
 543                       }
 544                   }
 545
 546                   break;
 547           }
 548
 549           break;
 550       }
 551
 552       case WM_MENUSELECT:
 553           /* check if this is an applet */
 554           if ((LOWORD(lParam1) >= IDM_CPANEL_APPLET_BASE) &&
 555               (LOWORD(lParam1) <= IDM_CPANEL_APPLET_BASE + panel->total_subprogs))
 556           {
 557               CPlItem *item = Control_GetCPlItem_From_MenuID(hWnd, LOWORD(lParam1));
 558
 559               /* update the status bar if item is valid */
 560               if (item)
 561                   SetWindowTextW(panel->hWndStatusBar, item->applet->info[item->id].szInfo);
 562           }
 563           else if ((HIWORD(lParam1) == 0xFFFF) && (lParam2 == 0))
 564           {
 565               /* reset status bar description to that of the selected icon */
 566               CPlItem *item = Control_GetCPlItem_From_ListView(panel);
 567
 568               if (item)
 569                   SetWindowTextW(panel->hWndStatusBar, item->applet->info[item->id].szInfo);
 570               else
 571                   SetWindowTextW(panel->hWndStatusBar, NULL);
 572
 573               return 0;
 574           }
 575           else
 576               SetWindowTextW(panel->hWndStatusBar, NULL);
 577
 578           return 0;
 579
 580       case WM_SIZE:
 581       {
 582           HDWP hdwp;
 583           RECT sb;
 584
 585           hdwp = BeginDeferWindowPos(2);
 586
 587           if (hdwp == NULL)
 588               break;
 589
 590           GetClientRect(panel->hWndStatusBar, &sb);
 591
 592           hdwp = DeferWindowPos(hdwp, panel->hWndListView, NULL, 0, 0,
 593               LOWORD(lParam2), HIWORD(lParam2) - (sb.bottom - sb.top),
 594               SWP_NOZORDER | SWP_NOMOVE);
 595
 596           if (hdwp == NULL)
 597               break;
 598
 599           hdwp = DeferWindowPos(hdwp, panel->hWndStatusBar, NULL, 0, 0,
 600               LOWORD(lParam2), LOWORD(lParam1), SWP_NOZORDER | SWP_NOMOVE);
 601
 602           if (hdwp != NULL)
 603               EndDeferWindowPos(hdwp);
 604
 605           return 0;
 606       }
 607      }
 608    }
 609
 610    return DefWindowProcW(hWnd, wMsg, lParam1, lParam2);
 611 }
 612
 613 static void    Control_DoInterface(CPanel* panel, HWND hWnd, HINSTANCE hInst)
 614 {
 615     WNDCLASSW   wc;
 616     MSG         msg;
 617     WCHAR appName[MAX_STRING_LEN];
 618     const WCHAR className[] = {'S','h','e','l','l','_','C','o','n','t','r','o',
 619         'l','_','W','n','d','C','l','a','s','s',0};
 620
 621     LoadStringW(shell32_hInstance, IDS_CPANEL_TITLE, appName, sizeof(appName) / sizeof(appName[0]));
 622
 623     wc.style = CS_HREDRAW|CS_VREDRAW;
 624     wc.lpfnWndProc = Control_WndProc;
 625     wc.cbClsExtra = 0;
 626     wc.cbWndExtra = sizeof(CPlApplet*);
 627     wc.hInstance = panel->hInst = hInst;
 628     wc.hIcon = 0;
 629     wc.hCursor = LoadCursorW( 0, (LPWSTR)IDC_ARROW );
 630     wc.hbrBackground = GetStockObject(WHITE_BRUSH);
 631     wc.lpszMenuName = NULL;
 632     wc.lpszClassName = className;
 633
 634     if (!RegisterClassW(&wc)) return;
 635
 636     CreateWindowExW(0, wc.lpszClassName, appName,
 637                     WS_OVERLAPPEDWINDOW | WS_VISIBLE,
 638                     CW_USEDEFAULT, CW_USEDEFAULT,
 639                     CW_USEDEFAULT, CW_USEDEFAULT,
 640                     hWnd, NULL, hInst, panel);
 641     if (!panel->hWnd) return;
 642
 643     while (GetMessageW(&msg, panel->hWnd, 0, 0)) {
 644         TranslateMessage(&msg);
 645         DispatchMessageW(&msg);
 646     }
 647 }
 648
 649 static void Control_RegisterRegistryApplets(HWND hWnd, CPanel *panel, HKEY hkey_root, LPCWSTR szRepPath)
 650 {
 651     WCHAR name[MAX_PATH];
 652     WCHAR value[MAX_PATH];
 653     HKEY hkey;
 654
 655     if (RegOpenKeyW(hkey_root, szRepPath, &hkey) == ERROR_SUCCESS)
 656     {
 657         int idx = 0;
 658
 659         for(;; ++idx)
 660         {
 661             DWORD nameLen = MAX_PATH;
 662             DWORD valueLen = MAX_PATH;
 663
 664             if (RegEnumValueW(hkey, idx, name, &nameLen, NULL, NULL, (LPBYTE)value, &valueLen) != ERROR_SUCCESS)
 665                 break;
 666
 667             Control_LoadApplet(hWnd, value, panel);
 668         }
 669         RegCloseKey(hkey);
 670     }
 671 }
 672
 673 static  void    Control_DoWindow(CPanel* panel, HWND hWnd, HINSTANCE hInst)
 674 {
 675     HANDLE              h;
 676     WIN32_FIND_DATAW    fd;
 677     WCHAR               buffer[MAX_PATH];
 678     static const WCHAR wszAllCpl[] = {'*','.','c','p','l',0};
 679     static const WCHAR wszRegPath[] = {'S','O','F','T','W','A','R','E','\\','M','i','c','r','o','s','o','f','t',
 680             '\\','W','i','n','d','o','w','s','\\','C','u','r','r','e','n','t','V','e','r','s','i','o','n',
 681             '\\','C','o','n','t','r','o','l',' ','P','a','n','e','l','\\','C','p','l','s',0};
 682     WCHAR *p;
 683
 684     /* first add .cpl files in the system directory */
 685     GetSystemDirectoryW( buffer, MAX_PATH );
 686     p = buffer + strlenW(buffer);
 687     *p++ = '\\';
 688     lstrcpyW(p, wszAllCpl);
 689
 690     if ((h = FindFirstFileW(buffer, &fd)) != INVALID_HANDLE_VALUE) {
 691         do {
 692            lstrcpyW(p, fd.cFileName);
 693            Control_LoadApplet(hWnd, buffer, panel);
 694         } while (FindNextFileW(h, &fd));
 695         FindClose(h);
 696     }
 697
 698     /* now check for cpls in the registry */
 699     Control_RegisterRegistryApplets(hWnd, panel, HKEY_LOCAL_MACHINE, wszRegPath);
 700     Control_RegisterRegistryApplets(hWnd, panel, HKEY_CURRENT_USER, wszRegPath);
 701
 702     Control_DoInterface(panel, hWnd, hInst);
 703 }
 704
 705 static  void    Control_DoLaunch(CPanel* panel, HWND hWnd, LPCWSTR wszCmd)
 706    /* forms to parse:
 707     *   foo.cpl,@sp,str
 708     *   foo.cpl,@sp
 709     *   foo.cpl,,str
 710     *   foo.cpl @sp
 711     *   foo.cpl str
 712     *   "a path\foo.cpl"
 713     */
 714 {
 715     LPWSTR      buffer;
 716     LPWSTR      beg = NULL;
 717     LPWSTR      end;
 718     WCHAR       ch;
 719     LPWSTR       ptr;
 720     signed      sp = -1;
 721     LPWSTR      extraPmtsBuf = NULL;
 722     LPWSTR      extraPmts = NULL;
 723     int        quoted = 0;
 724
 725     buffer = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(wszCmd) + 1) * sizeof(*wszCmd));
 726     if (!buffer) return;
 727
 728     end = lstrcpyW(buffer, wszCmd);
 729
 730     for (;;) {
 731         ch = *end;
 732         if (ch == '"') quoted = !quoted;
 733         if (!quoted && (ch == ' ' || ch == ',' || ch == '\0')) {
 734             *end = '\0';
 735             if (beg) {
 736                 if (*beg == '@') {
 737                     sp = atoiW(beg + 1);
 738                 } else if (*beg == '\0') {
 739                     sp = -1;
 740                 } else {
 741                     extraPmtsBuf = beg;
 742                 }
 743             }
 744             if (ch == '\0') break;
 745             beg = end + 1;
 746             if (ch == ' ') while (end[1] == ' ') end++;
 747         }
 748         end++;
 749     }
 750     while ((ptr = StrChrW(buffer, '"')))
 751         memmove(ptr, ptr+1, lstrlenW(ptr)*sizeof(WCHAR));
 752
 753     /* now check for any quotes in extraPmtsBuf and remove */
 754     if (extraPmtsBuf != NULL)
 755     {
 756         beg = end = extraPmtsBuf;
 757         quoted = 0;
 758
 759         for (;;) {
 760             ch = *end;
 761             if (ch == '"') quoted = !quoted;
 762             if (!quoted && (ch == ' ' || ch == ',' || ch == '\0')) {
 763                 *end = '\0';
 764                 if (beg) {
 765                     if (*beg != '\0') {
 766                         extraPmts = beg;
 767                     }
 768                 }
 769                 if (ch == '\0') break;
 770                     beg = end + 1;
 771                 if (ch == ' ') while (end[1] == ' ') end++;
 772             }
 773             end++;
 774         }
 775
 776         while ((ptr = StrChrW(extraPmts, '"')))
 777             memmove(ptr, ptr+1, lstrlenW(ptr)*sizeof(WCHAR));
 778
 779         if (extraPmts == NULL)
 780             extraPmts = extraPmtsBuf;
 781     }
 782
 783     /* Now check if there had been a numerical value in the extra params */
 784     if ((extraPmts) && (*extraPmts == '@') && (sp == -1)) {
 785         sp = atoiW(extraPmts + 1);
 786     }
 787
 788     TRACE("cmd %s, extra %s, sp %d\n", debugstr_w(buffer), debugstr_w(extraPmts), sp);
 789
 790     Control_LoadApplet(hWnd, buffer, panel);
 791
 792     if (panel->first) {
 793         CPlApplet* applet = panel->first;
 794
 795         assert(applet && applet->next == NULL);
 796
 797         /* we've been given a textual parameter (or none at all) */
 798         if (sp == -1) {
 799             while ((++sp) != applet->count) {
 800                 if (applet->info[sp].dwSize) {
 801                     TRACE("sp %d, name %s\n", sp, debugstr_w(applet->info[sp].szName));
 802
 803                     if (StrCmpIW(extraPmts, applet->info[sp].szName) == 0)
 804                         break;
 805                 }
 806             }
 807         }
 808
 809         if (sp >= applet->count) {
 810             WARN("Out of bounds (%u >= %u), setting to 0\n", sp, applet->count);
 811             sp = 0;
 812         }
 813
 814         if (applet->info[sp].dwSize) {
 815             if (!applet->proc(applet->hWnd, CPL_STARTWPARMSA, sp, (LPARAM)extraPmts))
 816                 applet->proc(applet->hWnd, CPL_DBLCLK, sp, applet->info[sp].lData);
 817         }
 818
 819         Control_UnloadApplet(applet);
 820     }
 821
 822     HeapFree(GetProcessHeap(), 0, buffer);
 823 }
 824
 825 /*************************************************************************
 826  * Control_RunDLLW                      [SHELL32.@]
 827  *
 828  */
 829 void WINAPI Control_RunDLLW(HWND hWnd, HINSTANCE hInst, LPCWSTR cmd, DWORD nCmdShow)
 830 {
 831     CPanel      panel;
 832
 833     TRACE("(%p, %p, %s, 0x%08x)\n",
 834           hWnd, hInst, debugstr_w(cmd), nCmdShow);
 835
 836     memset(&panel, 0, sizeof(panel));
 837
 838     if (!cmd || !*cmd) {
 839         Control_DoWindow(&panel, hWnd, hInst);
 840     } else {
 841         Control_DoLaunch(&panel, hWnd, cmd);
 842     }
 843 }
 844
 845 /*************************************************************************
 846  * Control_RunDLLA                      [SHELL32.@]
 847  *
 848  */
 849 void WINAPI Control_RunDLLA(HWND hWnd, HINSTANCE hInst, LPCSTR cmd, DWORD nCmdShow)
 850 {
 851     DWORD len = MultiByteToWideChar(CP_ACP, 0, cmd, -1, NULL, 0 );
 852     LPWSTR wszCmd = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 853     if (wszCmd && MultiByteToWideChar(CP_ACP, 0, cmd, -1, wszCmd, len ))
 854     {
 855         Control_RunDLLW(hWnd, hInst, wszCmd, nCmdShow);
 856     }
 857     HeapFree(GetProcessHeap(), 0, wszCmd);
 858 }
 859
 860 /*************************************************************************
 861  * Control_FillCache_RunDLLW                    [SHELL32.@]
 862  *
 863  */
 864 HRESULT WINAPI Control_FillCache_RunDLLW(HWND hWnd, HANDLE hModule, DWORD w, DWORD x)
 865 {
 866     FIXME("%p %p 0x%08x 0x%08x stub\n", hWnd, hModule, w, x);
 867     return 0;
 868 }
 869
 870 /*************************************************************************
 871  * Control_FillCache_RunDLLA                    [SHELL32.@]
 872  *
 873  */
 874 HRESULT WINAPI Control_FillCache_RunDLLA(HWND hWnd, HANDLE hModule, DWORD w, DWORD x)
 875 {
 876     return Control_FillCache_RunDLLW(hWnd, hModule, w, x);
 877 }
 878
 879 /*************************************************************************
 880  * CallCPLEntry16                               [SHELL32.166]
 881  *
 882  * called by desk.cpl on "Advanced" with:
 883  * hMod("DeskCp16.Dll"), pFunc("CplApplet"), 0, 1, 0xc, 0
 884  *
 885  */
 886 DWORD WINAPI CallCPLEntry16(HMODULE hMod, FARPROC pFunc, DWORD dw3, DWORD dw4, DWORD dw5, DWORD dw6)
 887 {
 888     FIXME("(%p, %p, %08x, %08x, %08x, %08x): stub.\n", hMod, pFunc, dw3, dw4, dw5, dw6);
 889     return 0x0deadbee;
 890 }