dlls/appwiz.cpl/appwiz.c

   1 /*
   2  * Add/Remove Programs applet
   3  * Partially based on Wine Uninstaller
   4  *
   5  * Copyright 2000 Andreas Mohr
   6  * Copyright 2004 Hannu Valtonen
   7  * Copyright 2005 Jonathan Ernst
   8  * Copyright 2001-2002, 2008 Owen Rudge
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  *
  24  */
  25
  26 #include "config.h"
  27 #include "wine/port.h"
  28 #include "wine/unicode.h"
  29 #include "wine/debug.h"
  30
  31 #include <string.h>
  32 #include <stdlib.h>
  33 #include <stdarg.h>
  34 #include <stdio.h>
  35 #include <windef.h>
  36 #include <winbase.h>
  37 #include <winuser.h>
  38 #include <wingdi.h>
  39 #include <winreg.h>
  40 #include <shellapi.h>
  41 #include <commctrl.h>
  42 #include <cpl.h>
  43
  44 #include "res.h"
  45
  46 WINE_DEFAULT_DEBUG_CHANNEL(appwizcpl);
  47
  48 /* define a maximum length for various buffers we use */
  49 #define MAX_STRING_LEN    1024
  50
  51 typedef struct APPINFO {
  52     int id;
  53
  54     LPWSTR title;
  55     LPWSTR path;
  56
  57     LPWSTR icon;
  58     int iconIdx;
  59
  60     LPWSTR publisher;
  61     LPWSTR version;
  62
  63     HKEY regroot;
  64     WCHAR regkey[MAX_STRING_LEN];
  65
  66     struct APPINFO *next;
  67 } APPINFO;
  68
  69 static struct APPINFO *AppInfo = NULL;
  70 static HINSTANCE hInst;
  71
  72 /* names of registry keys */
  73 static const WCHAR BackSlashW[] = { '\\', 0 };
  74 static const WCHAR DisplayNameW[] = {'D','i','s','p','l','a','y','N','a','m','e',0};
  75 static const WCHAR DisplayIconW[] = {'D','i','s','p','l','a','y','I','c','o','n',0};
  76 static const WCHAR DisplayVersionW[] = {'D','i','s','p','l','a','y','V','e','r',
  77     's','i','o','n',0};
  78 static const WCHAR PublisherW[] = {'P','u','b','l','i','s','h','e','r',0};
  79 static const WCHAR UninstallCommandlineW[] = {'U','n','i','n','s','t','a','l','l',
  80     'S','t','r','i','n','g',0};
  81
  82 static const WCHAR PathUninstallW[] = {
  83         'S','o','f','t','w','a','r','e','\\',
  84         'M','i','c','r','o','s','o','f','t','\\',
  85         'W','i','n','d','o','w','s','\\',
  86         'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
  87         'U','n','i','n','s','t','a','l','l',0 };
  88
  89 /******************************************************************************
  90  * Name       : DllMain
  91  * Description: Entry point for DLL file
  92  */
  93 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
  94                     LPVOID lpvReserved)
  95 {
  96     TRACE("(%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved);
  97
  98     switch (fdwReason)
  99     {
 100         case DLL_PROCESS_ATTACH:
 101             hInst = hinstDLL;
 102             break;
 103     }
 104     return TRUE;
 105 }
 106
 107 /******************************************************************************
 108  * Name       : FreeAppInfo
 109  * Description: Frees memory used by an AppInfo structure, and any children.
 110  */
 111 static void FreeAppInfo(APPINFO *info)
 112 {
 113     APPINFO *iter = info;
 114
 115     while (iter)
 116     {
 117         if (iter->title)
 118             HeapFree(GetProcessHeap(), 0, iter->title);
 119
 120         if (iter->path)
 121             HeapFree(GetProcessHeap(), 0, iter->path);
 122
 123         if (iter->icon)
 124             HeapFree(GetProcessHeap(), 0, iter->icon);
 125
 126         if (iter->publisher)
 127             HeapFree(GetProcessHeap(), 0, iter->publisher);
 128
 129         if (iter->version)
 130             HeapFree(GetProcessHeap(), 0, iter->version);
 131
 132         iter = iter->next;
 133         HeapFree(GetProcessHeap(), 0, iter);
 134     }
 135 }
 136
 137 /******************************************************************************
 138  * Name       : ReadApplicationsFromRegistry
 139  * Description: Creates a linked list of uninstallable applications from the
 140  *              registry.
 141  * Parameters : root    - Which registry root to read from (HKCU/HKLM)
 142  * Returns    : TRUE if successful, FALSE otherwise
 143  */
 144 static BOOL ReadApplicationsFromRegistry(HKEY root)
 145 {
 146     HKEY hkeyUninst, hkeyApp;
 147     int i, id = 0;
 148     DWORD sizeOfSubKeyName, displen, uninstlen;
 149     WCHAR subKeyName[256];
 150     WCHAR key_app[MAX_STRING_LEN];
 151     WCHAR *p;
 152     APPINFO *iter = AppInfo;
 153     LPWSTR iconPtr;
 154     BOOL ret = FALSE;
 155
 156     if (RegOpenKeyExW(root, PathUninstallW, 0, KEY_READ, &hkeyUninst) !=
 157       ERROR_SUCCESS)
 158         return FALSE;
 159
 160     lstrcpyW(key_app, PathUninstallW);
 161     lstrcatW(key_app, BackSlashW);
 162     p = key_app+lstrlenW(PathUninstallW)+1;
 163
 164     sizeOfSubKeyName = sizeof(subKeyName) / sizeof(subKeyName[0]);
 165
 166     if (iter)
 167     {
 168         /* find the end of the list */
 169         for (iter = AppInfo; iter->next; iter = iter->next);
 170     }
 171
 172     for (i = 0; RegEnumKeyExW(hkeyUninst, i, subKeyName, &sizeOfSubKeyName, NULL,
 173         NULL, NULL, NULL) != ERROR_NO_MORE_ITEMS; ++i)
 174     {
 175         lstrcpyW(p, subKeyName);
 176         RegOpenKeyExW(root, key_app, 0, KEY_READ, &hkeyApp);
 177
 178         displen = 0;
 179         uninstlen = 0;
 180
 181         if ((RegQueryValueExW(hkeyApp, DisplayNameW, 0, 0, NULL, &displen) ==
 182             ERROR_SUCCESS) && (RegQueryValueExW(hkeyApp, UninstallCommandlineW,
 183             0, 0, NULL, &uninstlen) == ERROR_SUCCESS))
 184         {
 185             /* if we already have iter, allocate the next entry */
 186             if (iter)
 187             {
 188                 iter->next = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 189                     sizeof(struct APPINFO));
 190
 191                 if (!iter->next)
 192                     goto err;
 193
 194                 iter = iter->next;
 195             }
 196             else
 197             {
 198                 /* if not, start the list */
 199                 iter = AppInfo = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 200                     sizeof(struct APPINFO));
 201
 202                 if (!iter)
 203                     goto err;
 204             }
 205
 206             iter->title = HeapAlloc(GetProcessHeap(), 0, displen);
 207
 208             if (!iter->title)
 209                 goto err;
 210
 211             RegQueryValueExW(hkeyApp, DisplayNameW, 0, 0, (LPBYTE)iter->title,
 212                 &displen);
 213
 214             /* now get DisplayIcon */
 215             displen = 0;
 216             RegQueryValueExW(hkeyApp, DisplayIconW, 0, 0, NULL, &displen);
 217
 218             if (displen == 0)
 219                 iter->icon = 0;
 220             else
 221             {
 222                 iter->icon = HeapAlloc(GetProcessHeap(), 0, displen);
 223
 224                 if (!iter->icon)
 225                     goto err;
 226
 227                 RegQueryValueExW(hkeyApp, DisplayIconW, 0, 0, (LPBYTE)iter->icon,
 228                     &displen);
 229
 230                 /* separate the index from the icon name, if supplied */
 231                 iconPtr = strchrW(iter->icon, ',');
 232
 233                 if (iconPtr)
 234                 {
 235                     *iconPtr++ = 0;
 236                     iter->iconIdx = atoiW(iconPtr);
 237                 }
 238             }
 239
 240             iter->path = HeapAlloc(GetProcessHeap(), 0, uninstlen);
 241
 242             if (!iter->path)
 243                 goto err;
 244
 245             RegQueryValueExW(hkeyApp, UninstallCommandlineW, 0, 0,
 246                 (LPBYTE)iter->path, &uninstlen);
 247
 248             /* publisher, version */
 249             if (RegQueryValueExW(hkeyApp, PublisherW, 0, 0, NULL, &displen) ==
 250                 ERROR_SUCCESS)
 251             {
 252                 iter->publisher = HeapAlloc(GetProcessHeap(), 0, displen);
 253
 254                 if (!iter->publisher)
 255                     goto err;
 256
 257                 RegQueryValueExW(hkeyApp, PublisherW, 0, 0, (LPBYTE)iter->publisher,
 258                     &displen);
 259             }
 260
 261             if (RegQueryValueExW(hkeyApp, DisplayVersionW, 0, 0, NULL, &displen) ==
 262                 ERROR_SUCCESS)
 263             {
 264                 iter->version = HeapAlloc(GetProcessHeap(), 0, displen);
 265
 266                 if (!iter->version)
 267                     goto err;
 268
 269                 RegQueryValueExW(hkeyApp, DisplayVersionW, 0, 0, (LPBYTE)iter->version,
 270                     &displen);
 271             }
 272
 273             /* registry key */
 274             iter->regroot = root;
 275             lstrcpyW(iter->regkey, subKeyName);
 276
 277             iter->id = id++;
 278         }
 279
 280         RegCloseKey(hkeyApp);
 281         sizeOfSubKeyName = sizeof(subKeyName) / sizeof(subKeyName[0]);
 282     }
 283
 284     ret = TRUE;
 285     goto end;
 286
 287 err:
 288     RegCloseKey(hkeyApp);
 289     FreeAppInfo(iter);
 290
 291 end:
 292     RegCloseKey(hkeyUninst);
 293     return ret;
 294 }
 295
 296
 297 /******************************************************************************
 298  * Name       : AddApplicationsToList
 299  * Description: Populates the list box with applications.
 300  * Parameters : hWnd    - Handle of the dialog box
 301  */
 302 static void AddApplicationsToList(HWND hWnd, HIMAGELIST hList)
 303 {
 304     APPINFO *iter = AppInfo;
 305     LVITEMW lvItem;
 306     HICON hIcon;
 307     int index;
 308
 309     while (iter)
 310     {
 311         /* get the icon */
 312         index = 0;
 313
 314         if (iter->icon)
 315         {
 316             if (ExtractIconExW(iter->icon, iter->iconIdx, NULL, &hIcon, 1) == 1)
 317             {
 318                 index = ImageList_AddIcon(hList, hIcon);
 319                 DestroyIcon(hIcon);
 320             }
 321         }
 322
 323         lvItem.mask = LVIF_IMAGE | LVIF_TEXT | LVIF_PARAM;
 324         lvItem.iItem = iter->id;
 325         lvItem.iSubItem = 0;
 326         lvItem.pszText = iter->title;
 327         lvItem.iImage = index;
 328         lvItem.lParam = iter->id;
 329
 330         index = ListView_InsertItemW(hWnd, &lvItem);
 331
 332         /* now add the subitems (columns) */
 333         ListView_SetItemTextW(hWnd, index, 1, iter->publisher);
 334         ListView_SetItemTextW(hWnd, index, 2, iter->version);
 335
 336         iter = iter->next;
 337     }
 338 }
 339
 340 /******************************************************************************
 341  * Name       : RemoveItemsFromList
 342  * Description: Clears the application list box.
 343  * Parameters : hWnd    - Handle of the dialog box
 344  */
 345 static void RemoveItemsFromList(HWND hWnd)
 346 {
 347     SendDlgItemMessageW(hWnd, IDL_PROGRAMS, LVM_DELETEALLITEMS, 0, 0);
 348 }
 349
 350 /******************************************************************************
 351  * Name       : EmptyList
 352  * Description: Frees memory used by the application linked list.
 353  */
 354 static inline void EmptyList(void)
 355 {
 356     FreeAppInfo(AppInfo);
 357     AppInfo = NULL;
 358 }
 359
 360 /******************************************************************************
 361  * Name       : UpdateButtons
 362  * Description: Enables/disables the Add/Remove button depending on current
 363  *              selection in list box.
 364  * Parameters : hWnd    - Handle of the dialog box
 365  */
 366 static void UpdateButtons(HWND hWnd)
 367 {
 368     BOOL sel = ListView_GetSelectedCount(GetDlgItem(hWnd, IDL_PROGRAMS)) != 0;
 369
 370     EnableWindow(GetDlgItem(hWnd, IDC_ADDREMOVE), sel);
 371     EnableWindow(GetDlgItem(hWnd, IDC_SUPPORT_INFO), sel);
 372 }
 373
 374 /******************************************************************************
 375  * Name       : UninstallProgram
 376  * Description: Executes the specified program's installer.
 377  * Parameters : id      - the internal ID of the installer to remove
 378  */
 379 static void UninstallProgram(int id)
 380 {
 381     APPINFO *iter;
 382     STARTUPINFOW si;
 383     PROCESS_INFORMATION info;
 384     WCHAR errormsg[MAX_STRING_LEN];
 385     WCHAR sUninstallFailed[MAX_STRING_LEN];
 386     HKEY hkey;
 387     BOOL res;
 388
 389     LoadStringW(hInst, IDS_UNINSTALL_FAILED, sUninstallFailed,
 390         sizeof(sUninstallFailed) / sizeof(sUninstallFailed[0]));
 391
 392     for (iter = AppInfo; iter; iter = iter->next)
 393     {
 394         if (iter->id == id)
 395         {
 396             TRACE("Uninstalling %s (%s)\n", wine_dbgstr_w(iter->title),
 397                 wine_dbgstr_w(iter->path));
 398
 399             memset(&si, 0, sizeof(STARTUPINFOW));
 400             si.cb = sizeof(STARTUPINFOW);
 401             si.wShowWindow = SW_NORMAL;
 402             res = CreateProcessW(NULL, iter->path, NULL, NULL, FALSE, 0, NULL,
 403                 NULL, &si, &info);
 404
 405             if (res)
 406             {
 407                 /* wait for the process to exit */
 408                 WaitForSingleObject(info.hProcess, INFINITE);
 409             }
 410             else
 411             {
 412                 wsprintfW(errormsg, sUninstallFailed, iter->path);
 413
 414                 if (MessageBoxW(0, errormsg, iter->title, MB_YESNO |
 415                     MB_ICONQUESTION) == IDYES)
 416                 {
 417                     /* delete the application's uninstall entry */
 418                     RegOpenKeyExW(iter->regroot, PathUninstallW, 0, KEY_READ, &hkey);
 419                     RegDeleteKeyW(hkey, iter->regkey);
 420                     RegCloseKey(hkey);
 421                 }
 422             }
 423
 424             break;
 425         }
 426     }
 427 }
 428
 429 /******************************************************************************
 430  * Name       : SupportInfoDlgProc
 431  * Description: Callback procedure for support info dialog
 432  * Parameters : hWnd    - hWnd of the window
 433  *              msg     - reason for calling function
 434  *              wParam  - additional parameter
 435  *              lParam  - additional parameter
 436  * Returns    : Dependant on message
 437  */
 438 static BOOL CALLBACK SupportInfoDlgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 439 {
 440     APPINFO *iter;
 441     WCHAR oldtitle[MAX_STRING_LEN];
 442     WCHAR buf[MAX_STRING_LEN];
 443
 444     switch(msg)
 445     {
 446         case WM_INITDIALOG:
 447             for (iter = AppInfo; iter; iter = iter->next)
 448             {
 449                 if (iter->id == (int) lParam)
 450                 {
 451                     /* Update the main label with the app name */
 452                     if (GetWindowTextW(GetDlgItem(hWnd, IDC_INFO_LABEL), oldtitle,
 453                         MAX_STRING_LEN) != 0)
 454                     {
 455                         wsprintfW(buf, oldtitle, iter->title);
 456                         SetWindowTextW(GetDlgItem(hWnd, IDC_INFO_LABEL), buf);
 457                     }
 458
 459                     break;
 460                 }
 461             }
 462
 463             return TRUE;
 464
 465         case WM_DESTROY:
 466             return 0;
 467
 468         case WM_COMMAND:
 469             switch (LOWORD(wParam))
 470             {
 471                 case IDOK:
 472                     EndDialog(hWnd, TRUE);
 473                     break;
 474
 475             }
 476
 477             return TRUE;
 478     }
 479
 480     return FALSE;
 481 }
 482
 483 /******************************************************************************
 484  * Name       : SupportInfo
 485  * Description: Displays the Support Information dialog
 486  * Parameters : hWnd    - Handle of the main dialog
 487  *              id      - ID of the application to display information for
 488  */
 489 static void SupportInfo(HWND hWnd, int id)
 490 {
 491     DialogBoxParamW(hInst, MAKEINTRESOURCEW(IDD_INFO), hWnd, (DLGPROC)
 492         SupportInfoDlgProc, (LPARAM) id);
 493 }
 494
 495 /* Definition of column headers for AddListViewColumns function */
 496 typedef struct AppWizColumn {
 497    int width;
 498    int fmt;
 499    int title;
 500 } AppWizColumn;
 501
 502 AppWizColumn columns[] = {
 503     {200, LVCFMT_LEFT, IDS_COLUMN_NAME},
 504     {150, LVCFMT_LEFT, IDS_COLUMN_PUBLISHER},
 505     {100, LVCFMT_LEFT, IDS_COLUMN_VERSION},
 506 };
 507
 508 /******************************************************************************
 509  * Name       : AddListViewColumns
 510  * Description: Adds column headers to the list view control.
 511  * Parameters : hWnd    - Handle of the list view control.
 512  * Returns    : TRUE if completed successfully, FALSE otherwise.
 513  */
 514 static BOOL AddListViewColumns(HWND hWnd)
 515 {
 516     WCHAR buf[MAX_STRING_LEN];
 517     LVCOLUMNW lvc;
 518     int i;
 519
 520     lvc.mask = LVCF_FMT | LVCF_TEXT | LVCF_SUBITEM | LVCF_WIDTH;
 521
 522     /* Add the columns */
 523     for (i = 0; i < sizeof(columns) / sizeof(columns[0]); i++)
 524     {
 525         lvc.iSubItem = i;
 526         lvc.pszText = buf;
 527
 528         /* set width and format */
 529         lvc.cx = columns[i].width;
 530         lvc.fmt = columns[i].fmt;
 531
 532         LoadStringW(hInst, columns[i].title, buf, sizeof(buf) / sizeof(buf[0]));
 533
 534         if (ListView_InsertColumnW(hWnd, i, &lvc) == -1)
 535             return FALSE;
 536     }
 537
 538     return TRUE;
 539 }
 540
 541 /******************************************************************************
 542  * Name       : AddListViewImageList
 543  * Description: Creates an ImageList for the list view control.
 544  * Parameters : hWnd    - Handle of the list view control.
 545  * Returns    : Handle of the image list.
 546  */
 547 static HIMAGELIST AddListViewImageList(HWND hWnd)
 548 {
 549     HIMAGELIST hSmall;
 550     HICON hDefaultIcon;
 551
 552     hSmall = ImageList_Create(GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON),
 553         ILC_MASK, 1, 1);
 554
 555     /* Add default icon to image list */
 556     hDefaultIcon = LoadIconW(hInst, MAKEINTRESOURCEW(ICO_MAIN));
 557     ImageList_AddIcon(hSmall, hDefaultIcon);
 558     DestroyIcon(hDefaultIcon);
 559
 560     (void) ListView_SetImageList(hWnd, hSmall, LVSIL_SMALL);
 561
 562     return hSmall;
 563 }
 564
 565 /******************************************************************************
 566  * Name       : ResetApplicationList
 567  * Description: Empties the app list, if need be, and recreates it.
 568  * Parameters : bFirstRun  - TRUE if this is the first time this is run, FALSE otherwise
 569  *              hWnd       - handle of the dialog box
 570  *              hImageList - handle of the image list
 571  * Returns    : New handle of the image list.
 572  */
 573 static HIMAGELIST ResetApplicationList(BOOL bFirstRun, HWND hWnd, HIMAGELIST hImageList)
 574 {
 575     HWND hWndListView;
 576
 577     hWndListView = GetDlgItem(hWnd, IDL_PROGRAMS);
 578
 579     /* if first run, create the image list and add the listview columns */
 580     if (bFirstRun)
 581     {
 582         if (!AddListViewColumns(hWndListView))
 583             return NULL;
 584     }
 585     else /* we need to remove the existing things first */
 586     {
 587         RemoveItemsFromList(hWnd);
 588         ImageList_Destroy(hImageList);
 589
 590         /* reset the list, since it's probably changed if the uninstallation was
 591            successful */
 592         EmptyList();
 593     }
 594
 595     /* now create the image list and add the applications to the listview */
 596     hImageList = AddListViewImageList(hWndListView);
 597
 598     ReadApplicationsFromRegistry(HKEY_LOCAL_MACHINE);
 599     ReadApplicationsFromRegistry(HKEY_CURRENT_USER);
 600
 601     AddApplicationsToList(hWndListView, hImageList);
 602     UpdateButtons(hWnd);
 603
 604     return(hImageList);
 605 }
 606
 607 /******************************************************************************
 608  * Name       : MainDlgProc
 609  * Description: Callback procedure for main tab
 610  * Parameters : hWnd    - hWnd of the window
 611  *              msg     - reason for calling function
 612  *              wParam  - additional parameter
 613  *              lParam  - additional parameter
 614  * Returns    : Dependant on message
 615  */
 616 static BOOL CALLBACK MainDlgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 617 {
 618     int selitem;
 619     static HIMAGELIST hImageList;
 620     LPNMHDR nmh;
 621     LVITEMW lvItem;
 622
 623     switch(msg)
 624     {
 625         case WM_INITDIALOG:
 626             hImageList = ResetApplicationList(TRUE, hWnd, hImageList);
 627
 628             if (!hImageList)
 629                 return FALSE;
 630
 631             return TRUE;
 632
 633         case WM_DESTROY:
 634             RemoveItemsFromList(hWnd);
 635             ImageList_Destroy(hImageList);
 636
 637             EmptyList();
 638
 639             return 0;
 640
 641         case WM_NOTIFY:
 642             nmh = (LPNMHDR) lParam;
 643
 644             switch (nmh->idFrom)
 645             {
 646                 case IDL_PROGRAMS:
 647                     switch (nmh->code)
 648                     {
 649                         case LVN_ITEMCHANGED:
 650                             UpdateButtons(hWnd);
 651                             break;
 652                     }
 653                     break;
 654             }
 655
 656             return TRUE;
 657
 658         case WM_COMMAND:
 659             switch (LOWORD(wParam))
 660             {
 661                 case IDC_ADDREMOVE:
 662                     selitem = SendDlgItemMessageW(hWnd, IDL_PROGRAMS,
 663                         LVM_GETNEXTITEM, -1, LVNI_FOCUSED|LVNI_SELECTED);
 664
 665                     if (selitem != -1)
 666                     {
 667                         lvItem.iItem = selitem;
 668                         lvItem.mask = LVIF_PARAM;
 669
 670                         if (SendDlgItemMessageW(hWnd, IDL_PROGRAMS, LVM_GETITEMW,
 671                           0, (LPARAM) &lvItem))
 672                             UninstallProgram(lvItem.lParam);
 673                     }
 674
 675                     hImageList = ResetApplicationList(FALSE, hWnd, hImageList);
 676
 677                     break;
 678
 679                 case IDC_SUPPORT_INFO:
 680                     selitem = SendDlgItemMessageW(hWnd, IDL_PROGRAMS,
 681                         LVM_GETNEXTITEM, -1, LVNI_FOCUSED | LVNI_SELECTED);
 682
 683                     if (selitem != -1)
 684                     {
 685                         lvItem.iItem = selitem;
 686                         lvItem.mask = LVIF_PARAM;
 687
 688                         if (SendDlgItemMessageW(hWnd, IDL_PROGRAMS, LVM_GETITEMW,
 689                           0, (LPARAM) &lvItem))
 690                             SupportInfo(hWnd, lvItem.lParam);
 691                     }
 692
 693                     break;
 694             }
 695
 696             return TRUE;
 697     }
 698
 699     return FALSE;
 700 }
 701
 702 /******************************************************************************
 703  * Name       : StartApplet
 704  * Description: Main routine for applet
 705  * Parameters : hWnd    - hWnd of the Control Panel
 706  */
 707 static void StartApplet(HWND hWnd)
 708 {
 709     PROPSHEETPAGEW psp;
 710     PROPSHEETHEADERW psh;
 711     WCHAR tab_title[MAX_STRING_LEN], app_title[MAX_STRING_LEN];
 712
 713     /* Load the strings we will use */
 714     LoadStringW(hInst, IDS_TAB1_TITLE, tab_title, sizeof(tab_title) / sizeof(tab_title[0]));
 715     LoadStringW(hInst, IDS_CPL_TITLE, app_title, sizeof(app_title) / sizeof(app_title[0]));
 716
 717     /* Fill out the PROPSHEETPAGE */
 718     psp.dwSize = sizeof (PROPSHEETPAGEW);
 719     psp.dwFlags = PSP_USETITLE;
 720     psp.hInstance = hInst;
 721     psp.pszTemplate = MAKEINTRESOURCEW (IDD_MAIN);
 722     psp.pszIcon = NULL;
 723     psp.pfnDlgProc = (DLGPROC) MainDlgProc;
 724     psp.pszTitle = tab_title;
 725     psp.lParam = 0;
 726
 727     /* Fill out the PROPSHEETHEADER */
 728     psh.dwSize = sizeof (PROPSHEETHEADERW);
 729     psh.dwFlags = PSH_PROPSHEETPAGE | PSH_USEICONID;
 730     psh.hwndParent = hWnd;
 731     psh.hInstance = hInst;
 732     psh.pszIcon = NULL;
 733     psh.pszCaption = app_title;
 734     psh.nPages = 1;
 735     psh.ppsp = &psp;
 736     psh.pfnCallback = NULL;
 737     psh.nStartPage = 0;
 738
 739     /* Display the property sheet */
 740     PropertySheetW (&psh);
 741 }
 742
 743 /******************************************************************************
 744  * Name       : CPlApplet
 745  * Description: Entry point for Control Panel applets
 746  * Parameters : hwndCPL - hWnd of the Control Panel
 747  *              message - reason for calling function
 748  *              lParam1 - additional parameter
 749  *              lParam2 - additional parameter
 750  * Returns    : Dependant on message
 751  */
 752 LONG CALLBACK CPlApplet(HWND hwndCPL, UINT message, LPARAM lParam1, LPARAM lParam2)
 753 {
 754     INITCOMMONCONTROLSEX iccEx;
 755
 756     switch (message)
 757     {
 758         case CPL_INIT:
 759             iccEx.dwSize = sizeof(iccEx);
 760             iccEx.dwICC = ICC_LISTVIEW_CLASSES | ICC_TAB_CLASSES;
 761
 762             InitCommonControlsEx(&iccEx);
 763
 764             return TRUE;
 765
 766         case CPL_GETCOUNT:
 767             return 1;
 768
 769         case CPL_INQUIRE:
 770         {
 771             CPLINFO *appletInfo = (CPLINFO *) lParam2;
 772
 773             appletInfo->idIcon = ICO_MAIN;
 774             appletInfo->idName = IDS_CPL_TITLE;
 775             appletInfo->idInfo = IDS_CPL_DESC;
 776             appletInfo->lData = 0;
 777
 778             break;
 779         }
 780
 781         case CPL_DBLCLK:
 782             StartApplet(hwndCPL);
 783             break;
 784     }
 785
 786     return FALSE;
 787 }