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 #define NONAMELESSUNION
  27
  28 #include "config.h"
  29 #include "wine/port.h"
  30 #include "wine/unicode.h"
  31 #include "wine/debug.h"
  32
  33 #include <string.h>
  34 #include <stdlib.h>
  35 #include <stdarg.h>
  36 #include <stdio.h>
  37 #include <windef.h>
  38 #include <winbase.h>
  39 #include <winuser.h>
  40 #include <wingdi.h>
  41 #include <winreg.h>
  42 #include <shellapi.h>
  43 #include <commctrl.h>
  44 #include <commdlg.h>
  45 #include <cpl.h>
  46
  47 #include "res.h"
  48
  49 WINE_DEFAULT_DEBUG_CHANNEL(appwizcpl);
  50
  51 /* define a maximum length for various buffers we use */
  52 #define MAX_STRING_LEN    1024
  53
  54 typedef struct APPINFO {
  55     int id;
  56
  57     LPWSTR title;
  58     LPWSTR path;
  59     LPWSTR path_modify;
  60
  61     LPWSTR icon;
  62     int iconIdx;
  63
  64     LPWSTR publisher;
  65     LPWSTR version;
  66
  67     HKEY regroot;
  68     WCHAR regkey[MAX_STRING_LEN];
  69
  70     struct APPINFO *next;
  71 } APPINFO;
  72
  73 static struct APPINFO *AppInfo = NULL;
  74 static HINSTANCE hInst;
  75
  76 static WCHAR btnRemove[MAX_STRING_LEN];
  77 static WCHAR btnModifyRemove[MAX_STRING_LEN];
  78
  79 static const WCHAR openW[] = {'o','p','e','n',0};
  80
  81 /* names of registry keys */
  82 static const WCHAR BackSlashW[] = { '\\', 0 };
  83 static const WCHAR DisplayNameW[] = {'D','i','s','p','l','a','y','N','a','m','e',0};
  84 static const WCHAR DisplayIconW[] = {'D','i','s','p','l','a','y','I','c','o','n',0};
  85 static const WCHAR DisplayVersionW[] = {'D','i','s','p','l','a','y','V','e','r',
  86     's','i','o','n',0};
  87 static const WCHAR PublisherW[] = {'P','u','b','l','i','s','h','e','r',0};
  88 static const WCHAR ContactW[] = {'C','o','n','t','a','c','t',0};
  89 static const WCHAR HelpLinkW[] = {'H','e','l','p','L','i','n','k',0};
  90 static const WCHAR HelpTelephoneW[] = {'H','e','l','p','T','e','l','e','p','h',
  91     'o','n','e',0};
  92 static const WCHAR ModifyPathW[] = {'M','o','d','i','f','y','P','a','t','h',0};
  93 static const WCHAR NoModifyW[] = {'N','o','M','o','d','i','f','y',0};
  94 static const WCHAR ReadmeW[] = {'R','e','a','d','m','e',0};
  95 static const WCHAR URLUpdateInfoW[] = {'U','R','L','U','p','d','a','t','e','I',
  96     'n','f','o',0};
  97 static const WCHAR CommentsW[] = {'C','o','m','m','e','n','t','s',0};
  98 static const WCHAR UninstallCommandlineW[] = {'U','n','i','n','s','t','a','l','l',
  99     'S','t','r','i','n','g',0};
 100
 101 static const WCHAR PathUninstallW[] = {
 102         'S','o','f','t','w','a','r','e','\\',
 103         'M','i','c','r','o','s','o','f','t','\\',
 104         'W','i','n','d','o','w','s','\\',
 105         'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
 106         'U','n','i','n','s','t','a','l','l',0 };
 107
 108 /******************************************************************************
 109  * Name       : DllMain
 110  * Description: Entry point for DLL file
 111  */
 112 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
 113                     LPVOID lpvReserved)
 114 {
 115     TRACE("(%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved);
 116
 117     switch (fdwReason)
 118     {
 119         case DLL_PROCESS_ATTACH:
 120             hInst = hinstDLL;
 121             break;
 122     }
 123     return TRUE;
 124 }
 125
 126 /******************************************************************************
 127  * Name       : FreeAppInfo
 128  * Description: Frees memory used by an AppInfo structure, and any children.
 129  */
 130 static void FreeAppInfo(APPINFO *info)
 131 {
 132     while (info)
 133     {
 134         APPINFO *next_info = info->next;
 135
 136         HeapFree(GetProcessHeap(), 0, info->title);
 137         HeapFree(GetProcessHeap(), 0, info->path);
 138         HeapFree(GetProcessHeap(), 0, info->path_modify);
 139         HeapFree(GetProcessHeap(), 0, info->icon);
 140         HeapFree(GetProcessHeap(), 0, info->publisher);
 141         HeapFree(GetProcessHeap(), 0, info->version);
 142         HeapFree(GetProcessHeap(), 0, info);
 143         info = next_info;
 144     }
 145 }
 146
 147 /******************************************************************************
 148  * Name       : ReadApplicationsFromRegistry
 149  * Description: Creates a linked list of uninstallable applications from the
 150  *              registry.
 151  * Parameters : root    - Which registry root to read from (HKCU/HKLM)
 152  * Returns    : TRUE if successful, FALSE otherwise
 153  */
 154 static BOOL ReadApplicationsFromRegistry(HKEY root)
 155 {
 156     HKEY hkeyUninst, hkeyApp;
 157     int i, id = 0;
 158     DWORD sizeOfSubKeyName, displen, uninstlen;
 159     DWORD dwNoModify, dwType;
 160     WCHAR subKeyName[256];
 161     WCHAR key_app[MAX_STRING_LEN];
 162     WCHAR *p;
 163     APPINFO *iter = AppInfo;
 164     LPWSTR iconPtr;
 165     BOOL ret = FALSE;
 166
 167     if (RegOpenKeyExW(root, PathUninstallW, 0, KEY_READ, &hkeyUninst) !=
 168       ERROR_SUCCESS)
 169         return FALSE;
 170
 171     lstrcpyW(key_app, PathUninstallW);
 172     lstrcatW(key_app, BackSlashW);
 173     p = key_app+lstrlenW(PathUninstallW)+1;
 174
 175     sizeOfSubKeyName = sizeof(subKeyName) / sizeof(subKeyName[0]);
 176
 177     if (iter)
 178     {
 179         /* find the end of the list */
 180         for (iter = AppInfo; iter->next; iter = iter->next);
 181     }
 182
 183     for (i = 0; RegEnumKeyExW(hkeyUninst, i, subKeyName, &sizeOfSubKeyName, NULL,
 184         NULL, NULL, NULL) != ERROR_NO_MORE_ITEMS; ++i)
 185     {
 186         lstrcpyW(p, subKeyName);
 187         RegOpenKeyExW(root, key_app, 0, KEY_READ, &hkeyApp);
 188
 189         displen = 0;
 190         uninstlen = 0;
 191
 192         if ((RegQueryValueExW(hkeyApp, DisplayNameW, 0, 0, NULL, &displen) ==
 193             ERROR_SUCCESS) && (RegQueryValueExW(hkeyApp, UninstallCommandlineW,
 194             0, 0, NULL, &uninstlen) == ERROR_SUCCESS))
 195         {
 196             /* if we already have iter, allocate the next entry */
 197             if (iter)
 198             {
 199                 iter->next = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 200                     sizeof(struct APPINFO));
 201
 202                 if (!iter->next)
 203                     goto err;
 204
 205                 iter = iter->next;
 206             }
 207             else
 208             {
 209                 /* if not, start the list */
 210                 iter = AppInfo = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
 211                     sizeof(struct APPINFO));
 212
 213                 if (!iter)
 214                     goto err;
 215             }
 216
 217             iter->title = HeapAlloc(GetProcessHeap(), 0, displen);
 218
 219             if (!iter->title)
 220                 goto err;
 221
 222             RegQueryValueExW(hkeyApp, DisplayNameW, 0, 0, (LPBYTE)iter->title,
 223                 &displen);
 224
 225             /* now get DisplayIcon */
 226             displen = 0;
 227             RegQueryValueExW(hkeyApp, DisplayIconW, 0, 0, NULL, &displen);
 228
 229             if (displen == 0)
 230                 iter->icon = 0;
 231             else
 232             {
 233                 iter->icon = HeapAlloc(GetProcessHeap(), 0, displen);
 234
 235                 if (!iter->icon)
 236                     goto err;
 237
 238                 RegQueryValueExW(hkeyApp, DisplayIconW, 0, 0, (LPBYTE)iter->icon,
 239                     &displen);
 240
 241                 /* separate the index from the icon name, if supplied */
 242                 iconPtr = strchrW(iter->icon, ',');
 243
 244                 if (iconPtr)
 245                 {
 246                     *iconPtr++ = 0;
 247                     iter->iconIdx = atoiW(iconPtr);
 248                 }
 249             }
 250
 251             iter->path = HeapAlloc(GetProcessHeap(), 0, uninstlen);
 252
 253             if (!iter->path)
 254                 goto err;
 255
 256             RegQueryValueExW(hkeyApp, UninstallCommandlineW, 0, 0,
 257                 (LPBYTE)iter->path, &uninstlen);
 258
 259             /* publisher, version */
 260             if (RegQueryValueExW(hkeyApp, PublisherW, 0, 0, NULL, &displen) ==
 261                 ERROR_SUCCESS)
 262             {
 263                 iter->publisher = HeapAlloc(GetProcessHeap(), 0, displen);
 264
 265                 if (!iter->publisher)
 266                     goto err;
 267
 268                 RegQueryValueExW(hkeyApp, PublisherW, 0, 0, (LPBYTE)iter->publisher,
 269                     &displen);
 270             }
 271
 272             if (RegQueryValueExW(hkeyApp, DisplayVersionW, 0, 0, NULL, &displen) ==
 273                 ERROR_SUCCESS)
 274             {
 275                 iter->version = HeapAlloc(GetProcessHeap(), 0, displen);
 276
 277                 if (!iter->version)
 278                     goto err;
 279
 280                 RegQueryValueExW(hkeyApp, DisplayVersionW, 0, 0, (LPBYTE)iter->version,
 281                     &displen);
 282             }
 283
 284             /* Check if NoModify is set */
 285             dwType = REG_DWORD;
 286             dwNoModify = 0;
 287             displen = sizeof(DWORD);
 288
 289             if (RegQueryValueExW(hkeyApp, NoModifyW, NULL, &dwType, (LPBYTE)&dwNoModify, &displen)
 290                 != ERROR_SUCCESS)
 291             {
 292                 dwNoModify = 0;
 293             }
 294
 295             /* Some installers incorrectly create a REG_SZ instead of a REG_DWORD - check for
 296                ASCII 49, which equals 1 */
 297             if (dwType == REG_SZ)
 298                 dwNoModify = (dwNoModify == 49) ? 1 : 0;
 299
 300             /* Fetch the modify path */
 301             if ((dwNoModify == 0) && (RegQueryValueExW(hkeyApp, ModifyPathW, 0, 0, NULL, &displen)
 302                 == ERROR_SUCCESS))
 303             {
 304                 iter->path_modify = HeapAlloc(GetProcessHeap(), 0, displen);
 305
 306                 if (!iter->path_modify)
 307                     goto err;
 308
 309                 RegQueryValueExW(hkeyApp, ModifyPathW, 0, 0, (LPBYTE)iter->path_modify, &displen);
 310             }
 311
 312             /* registry key */
 313             iter->regroot = root;
 314             lstrcpyW(iter->regkey, subKeyName);
 315
 316             iter->id = id++;
 317         }
 318
 319         RegCloseKey(hkeyApp);
 320         sizeOfSubKeyName = sizeof(subKeyName) / sizeof(subKeyName[0]);
 321     }
 322
 323     ret = TRUE;
 324     goto end;
 325
 326 err:
 327     RegCloseKey(hkeyApp);
 328     FreeAppInfo(iter);
 329
 330 end:
 331     RegCloseKey(hkeyUninst);
 332     return ret;
 333 }
 334
 335
 336 /******************************************************************************
 337  * Name       : AddApplicationsToList
 338  * Description: Populates the list box with applications.
 339  * Parameters : hWnd    - Handle of the dialog box
 340  */
 341 static void AddApplicationsToList(HWND hWnd, HIMAGELIST hList)
 342 {
 343     APPINFO *iter;
 344     LVITEMW lvItem;
 345     HICON hIcon;
 346     int index;
 347
 348     for (iter = AppInfo; iter; iter = iter->next)
 349     {
 350         if (!iter->title[0]) continue;
 351
 352         /* get the icon */
 353         index = 0;
 354
 355         if (iter->icon)
 356         {
 357             if (ExtractIconExW(iter->icon, iter->iconIdx, NULL, &hIcon, 1) == 1)
 358             {
 359                 index = ImageList_AddIcon(hList, hIcon);
 360                 DestroyIcon(hIcon);
 361             }
 362         }
 363
 364         lvItem.mask = LVIF_IMAGE | LVIF_TEXT | LVIF_PARAM;
 365         lvItem.iItem = iter->id;
 366         lvItem.iSubItem = 0;
 367         lvItem.pszText = iter->title;
 368         lvItem.iImage = index;
 369         lvItem.lParam = iter->id;
 370
 371         index = ListView_InsertItemW(hWnd, &lvItem);
 372
 373         /* now add the subitems (columns) */
 374         ListView_SetItemTextW(hWnd, index, 1, iter->publisher);
 375         ListView_SetItemTextW(hWnd, index, 2, iter->version);
 376     }
 377 }
 378
 379 /******************************************************************************
 380  * Name       : RemoveItemsFromList
 381  * Description: Clears the application list box.
 382  * Parameters : hWnd    - Handle of the dialog box
 383  */
 384 static void RemoveItemsFromList(HWND hWnd)
 385 {
 386     SendDlgItemMessageW(hWnd, IDL_PROGRAMS, LVM_DELETEALLITEMS, 0, 0);
 387 }
 388
 389 /******************************************************************************
 390  * Name       : EmptyList
 391  * Description: Frees memory used by the application linked list.
 392  */
 393 static inline void EmptyList(void)
 394 {
 395     FreeAppInfo(AppInfo);
 396     AppInfo = NULL;
 397 }
 398
 399 /******************************************************************************
 400  * Name       : UpdateButtons
 401  * Description: Enables/disables the Add/Remove button depending on current
 402  *              selection in list box.
 403  * Parameters : hWnd    - Handle of the dialog box
 404  */
 405 static void UpdateButtons(HWND hWnd)
 406 {
 407     APPINFO *iter;
 408     LVITEMW lvItem;
 409     DWORD selitem = SendDlgItemMessageW(hWnd, IDL_PROGRAMS, LVM_GETNEXTITEM, -1,
 410        LVNI_FOCUSED | LVNI_SELECTED);
 411     BOOL enable_modify = FALSE;
 412
 413     if (selitem != -1)
 414     {
 415         lvItem.iItem = selitem;
 416         lvItem.mask = LVIF_PARAM;
 417
 418         if (SendDlgItemMessageW(hWnd, IDL_PROGRAMS, LVM_GETITEMW, 0, (LPARAM) &lvItem))
 419         {
 420             for (iter = AppInfo; iter; iter = iter->next)
 421             {
 422                 if (iter->id == lvItem.lParam)
 423                 {
 424                     /* Decide whether to display Modify/Remove as one button or two */
 425                     enable_modify = (iter->path_modify != NULL);
 426
 427                     /* Update title as appropriate */
 428                     if (iter->path_modify == NULL)
 429                         SetWindowTextW(GetDlgItem(hWnd, IDC_ADDREMOVE), btnModifyRemove);
 430                     else
 431                         SetWindowTextW(GetDlgItem(hWnd, IDC_ADDREMOVE), btnRemove);
 432
 433                     break;
 434                 }
 435             }
 436         }
 437     }
 438
 439     /* Enable/disable other buttons if necessary */
 440     EnableWindow(GetDlgItem(hWnd, IDC_ADDREMOVE), (selitem != -1));
 441     EnableWindow(GetDlgItem(hWnd, IDC_SUPPORT_INFO), (selitem != -1));
 442     EnableWindow(GetDlgItem(hWnd, IDC_MODIFY), enable_modify);
 443 }
 444
 445 /******************************************************************************
 446  * Name       : InstallProgram
 447  * Description: Search for potential Installer and execute it.
 448  * Parameters : hWnd    - Handle of the dialog box
 449  */
 450 static void InstallProgram(HWND hWnd)
 451 {
 452     OPENFILENAMEW ofn;
 453     WCHAR titleW[MAX_STRING_LEN];
 454     WCHAR FilterBufferW[MAX_STRING_LEN];
 455     WCHAR FileNameBufferW[MAX_PATH];
 456
 457     LoadStringW(hInst, IDS_CPL_TITLE, titleW, sizeof(titleW)/sizeof(WCHAR));
 458     LoadStringW(hInst, IDS_INSTALL_FILTER, FilterBufferW, sizeof(FilterBufferW)/sizeof(WCHAR));
 459
 460     memset(&ofn, 0, sizeof(OPENFILENAMEW));
 461     ofn.lStructSize = sizeof(OPENFILENAMEW);
 462     ofn.hwndOwner = hWnd;
 463     ofn.hInstance = hInst;
 464     ofn.lpstrFilter = FilterBufferW;
 465     ofn.nFilterIndex = 0;
 466     ofn.lpstrFile = FileNameBufferW;
 467     ofn.nMaxFile = MAX_PATH;
 468     ofn.lpstrFileTitle = NULL;
 469     ofn.nMaxFileTitle = 0;
 470     ofn.lpstrTitle = titleW;
 471     ofn.Flags = OFN_HIDEREADONLY | OFN_ENABLESIZING;
 472     FileNameBufferW[0] = 0;
 473
 474     if (GetOpenFileNameW(&ofn))
 475     {
 476         SHELLEXECUTEINFOW sei;
 477         memset(&sei, 0, sizeof(sei));
 478         sei.cbSize = sizeof(sei);
 479         sei.lpVerb = openW;
 480         sei.nShow = SW_SHOWDEFAULT;
 481         sei.fMask = SEE_MASK_NO_CONSOLE;
 482         sei.lpFile = ofn.lpstrFile;
 483
 484         ShellExecuteExW(&sei);
 485     }
 486 }
 487
 488 /******************************************************************************
 489  * Name       : UninstallProgram
 490  * Description: Executes the specified program's installer.
 491  * Parameters : id      - the internal ID of the installer to remove
 492  * Parameters : button  - ID of button pressed (Modify or Remove)
 493  */
 494 static void UninstallProgram(int id, DWORD button)
 495 {
 496     APPINFO *iter;
 497     STARTUPINFOW si;
 498     PROCESS_INFORMATION info;
 499     WCHAR errormsg[MAX_STRING_LEN];
 500     WCHAR sUninstallFailed[MAX_STRING_LEN];
 501     HKEY hkey;
 502     BOOL res;
 503
 504     LoadStringW(hInst, IDS_UNINSTALL_FAILED, sUninstallFailed,
 505         sizeof(sUninstallFailed) / sizeof(sUninstallFailed[0]));
 506
 507     for (iter = AppInfo; iter; iter = iter->next)
 508     {
 509         if (iter->id == id)
 510         {
 511             TRACE("Uninstalling %s (%s)\n", wine_dbgstr_w(iter->title),
 512                 wine_dbgstr_w(iter->path));
 513
 514             memset(&si, 0, sizeof(STARTUPINFOW));
 515             si.cb = sizeof(STARTUPINFOW);
 516             si.wShowWindow = SW_NORMAL;
 517
 518             res = CreateProcessW(NULL, (button == IDC_MODIFY) ? iter->path_modify : iter->path,
 519                 NULL, NULL, FALSE, 0, NULL, NULL, &si, &info);
 520
 521             if (res)
 522             {
 523                 CloseHandle(info.hThread);
 524
 525                 /* wait for the process to exit */
 526                 WaitForSingleObject(info.hProcess, INFINITE);
 527                 CloseHandle(info.hProcess);
 528             }
 529             else
 530             {
 531                 wsprintfW(errormsg, sUninstallFailed, iter->path);
 532
 533                 if (MessageBoxW(0, errormsg, iter->title, MB_YESNO |
 534                     MB_ICONQUESTION) == IDYES)
 535                 {
 536                     /* delete the application's uninstall entry */
 537                     RegOpenKeyExW(iter->regroot, PathUninstallW, 0, KEY_READ, &hkey);
 538                     RegDeleteKeyW(hkey, iter->regkey);
 539                     RegCloseKey(hkey);
 540                 }
 541             }
 542
 543             break;
 544         }
 545     }
 546 }
 547
 548 /**********************************************************************************
 549  * Name       : SetInfoDialogText
 550  * Description: Sets the text of a label in a window, based upon a registry entry
 551  *              or string passed to the function.
 552  * Parameters : hKey         - registry entry to read from, NULL if not reading
 553  *                             from registry
 554  *              lpKeyName    - key to read from, or string to check if hKey is NULL
 555  *              lpAltMessage - alternative message if entry not found
 556  *              hWnd         - handle of dialog box
 557  *              iDlgItem     - ID of label in dialog box
 558  */
 559 static void SetInfoDialogText(HKEY hKey, LPCWSTR lpKeyName, LPCWSTR lpAltMessage,
 560   HWND hWnd, int iDlgItem)
 561 {
 562     WCHAR buf[MAX_STRING_LEN];
 563     DWORD buflen;
 564     HWND hWndDlgItem;
 565
 566     hWndDlgItem = GetDlgItem(hWnd, iDlgItem);
 567
 568     /* if hKey is null, lpKeyName contains the string we want to check */
 569     if (hKey == NULL)
 570     {
 571         if ((lpKeyName) && (lstrlenW(lpKeyName) > 0))
 572             SetWindowTextW(hWndDlgItem, lpKeyName);
 573         else
 574             SetWindowTextW(hWndDlgItem, lpAltMessage);
 575     }
 576     else
 577     {
 578         buflen = MAX_STRING_LEN;
 579
 580         if ((RegQueryValueExW(hKey, lpKeyName, 0, 0, (LPBYTE) buf, &buflen) ==
 581            ERROR_SUCCESS) && (lstrlenW(buf) > 0))
 582             SetWindowTextW(hWndDlgItem, buf);
 583         else
 584             SetWindowTextW(hWndDlgItem, lpAltMessage);
 585     }
 586 }
 587
 588 /******************************************************************************
 589  * Name       : SupportInfoDlgProc
 590  * Description: Callback procedure for support info dialog
 591  * Parameters : hWnd    - hWnd of the window
 592  *              msg     - reason for calling function
 593  *              wParam  - additional parameter
 594  *              lParam  - additional parameter
 595  * Returns    : Dependant on message
 596  */
 597 static BOOL CALLBACK SupportInfoDlgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 598 {
 599     APPINFO *iter;
 600     HKEY hkey;
 601     WCHAR oldtitle[MAX_STRING_LEN];
 602     WCHAR buf[MAX_STRING_LEN];
 603     WCHAR key[MAX_STRING_LEN];
 604     WCHAR notfound[MAX_STRING_LEN];
 605
 606     switch(msg)
 607     {
 608         case WM_INITDIALOG:
 609             for (iter = AppInfo; iter; iter = iter->next)
 610             {
 611                 if (iter->id == (int) lParam)
 612                 {
 613                     lstrcpyW(key, PathUninstallW);
 614                     lstrcatW(key, BackSlashW);
 615                     lstrcatW(key, iter->regkey);
 616
 617                     /* check the application's registry entries */
 618                     RegOpenKeyExW(iter->regroot, key, 0, KEY_READ, &hkey);
 619
 620                     /* Load our "not specified" string */
 621                     LoadStringW(hInst, IDS_NOT_SPECIFIED, notfound,
 622                         sizeof(notfound) / sizeof(notfound[0]));
 623
 624                     /* Update the data for items already read into the structure */
 625                     SetInfoDialogText(NULL, iter->publisher, notfound, hWnd,
 626                         IDC_INFO_PUBLISHER);
 627                     SetInfoDialogText(NULL, iter->version, notfound, hWnd,
 628                         IDC_INFO_VERSION);
 629
 630                     /* And now update the data for those items in the registry */
 631                     SetInfoDialogText(hkey, ContactW, notfound, hWnd,
 632                         IDC_INFO_CONTACT);
 633                     SetInfoDialogText(hkey, HelpLinkW, notfound, hWnd,
 634                         IDC_INFO_SUPPORT);
 635                     SetInfoDialogText(hkey, HelpTelephoneW, notfound, hWnd,
 636                         IDC_INFO_PHONE);
 637                     SetInfoDialogText(hkey, ReadmeW, notfound, hWnd,
 638                         IDC_INFO_README);
 639                     SetInfoDialogText(hkey, URLUpdateInfoW, notfound, hWnd,
 640                         IDC_INFO_UPDATES);
 641                     SetInfoDialogText(hkey, CommentsW, notfound, hWnd,
 642                         IDC_INFO_COMMENTS);
 643
 644                     /* Update the main label with the app name */
 645                     if (GetWindowTextW(GetDlgItem(hWnd, IDC_INFO_LABEL), oldtitle,
 646                         MAX_STRING_LEN) != 0)
 647                     {
 648                         wsprintfW(buf, oldtitle, iter->title);
 649                         SetWindowTextW(GetDlgItem(hWnd, IDC_INFO_LABEL), buf);
 650                     }
 651
 652                     RegCloseKey(hkey);
 653
 654                     break;
 655                 }
 656             }
 657
 658             return TRUE;
 659
 660         case WM_DESTROY:
 661             return 0;
 662
 663         case WM_COMMAND:
 664             switch (LOWORD(wParam))
 665             {
 666                 case IDOK:
 667                     EndDialog(hWnd, TRUE);
 668                     break;
 669
 670             }
 671
 672             return TRUE;
 673     }
 674
 675     return FALSE;
 676 }
 677
 678 /******************************************************************************
 679  * Name       : SupportInfo
 680  * Description: Displays the Support Information dialog
 681  * Parameters : hWnd    - Handle of the main dialog
 682  *              id      - ID of the application to display information for
 683  */
 684 static void SupportInfo(HWND hWnd, int id)
 685 {
 686     DialogBoxParamW(hInst, MAKEINTRESOURCEW(IDD_INFO), hWnd, (DLGPROC)
 687         SupportInfoDlgProc, (LPARAM) id);
 688 }
 689
 690 /* Definition of column headers for AddListViewColumns function */
 691 typedef struct AppWizColumn {
 692    int width;
 693    int fmt;
 694    int title;
 695 } AppWizColumn;
 696
 697 static const AppWizColumn columns[] = {
 698     {200, LVCFMT_LEFT, IDS_COLUMN_NAME},
 699     {150, LVCFMT_LEFT, IDS_COLUMN_PUBLISHER},
 700     {100, LVCFMT_LEFT, IDS_COLUMN_VERSION},
 701 };
 702
 703 /******************************************************************************
 704  * Name       : AddListViewColumns
 705  * Description: Adds column headers to the list view control.
 706  * Parameters : hWnd    - Handle of the list view control.
 707  * Returns    : TRUE if completed successfully, FALSE otherwise.
 708  */
 709 static BOOL AddListViewColumns(HWND hWnd)
 710 {
 711     WCHAR buf[MAX_STRING_LEN];
 712     LVCOLUMNW lvc;
 713     UINT i;
 714
 715     lvc.mask = LVCF_FMT | LVCF_TEXT | LVCF_SUBITEM | LVCF_WIDTH;
 716
 717     /* Add the columns */
 718     for (i = 0; i < sizeof(columns) / sizeof(columns[0]); i++)
 719     {
 720         lvc.iSubItem = i;
 721         lvc.pszText = buf;
 722
 723         /* set width and format */
 724         lvc.cx = columns[i].width;
 725         lvc.fmt = columns[i].fmt;
 726
 727         LoadStringW(hInst, columns[i].title, buf, sizeof(buf) / sizeof(buf[0]));
 728
 729         if (ListView_InsertColumnW(hWnd, i, &lvc) == -1)
 730             return FALSE;
 731     }
 732
 733     return TRUE;
 734 }
 735
 736 /******************************************************************************
 737  * Name       : AddListViewImageList
 738  * Description: Creates an ImageList for the list view control.
 739  * Parameters : hWnd    - Handle of the list view control.
 740  * Returns    : Handle of the image list.
 741  */
 742 static HIMAGELIST AddListViewImageList(HWND hWnd)
 743 {
 744     HIMAGELIST hSmall;
 745     HICON hDefaultIcon;
 746
 747     hSmall = ImageList_Create(GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON),
 748         ILC_MASK, 1, 1);
 749
 750     /* Add default icon to image list */
 751     hDefaultIcon = LoadIconW(hInst, MAKEINTRESOURCEW(ICO_MAIN));
 752     ImageList_AddIcon(hSmall, hDefaultIcon);
 753     DestroyIcon(hDefaultIcon);
 754
 755     SendMessageW(hWnd, LVM_SETIMAGELIST, LVSIL_SMALL, (LPARAM)hSmall);
 756
 757     return hSmall;
 758 }
 759
 760 /******************************************************************************
 761  * Name       : ResetApplicationList
 762  * Description: Empties the app list, if need be, and recreates it.
 763  * Parameters : bFirstRun  - TRUE if this is the first time this is run, FALSE otherwise
 764  *              hWnd       - handle of the dialog box
 765  *              hImageList - handle of the image list
 766  * Returns    : New handle of the image list.
 767  */
 768 static HIMAGELIST ResetApplicationList(BOOL bFirstRun, HWND hWnd, HIMAGELIST hImageList)
 769 {
 770     HWND hWndListView;
 771
 772     hWndListView = GetDlgItem(hWnd, IDL_PROGRAMS);
 773
 774     /* if first run, create the image list and add the listview columns */
 775     if (bFirstRun)
 776     {
 777         if (!AddListViewColumns(hWndListView))
 778             return NULL;
 779     }
 780     else /* we need to remove the existing things first */
 781     {
 782         RemoveItemsFromList(hWnd);
 783         ImageList_Destroy(hImageList);
 784
 785         /* reset the list, since it's probably changed if the uninstallation was
 786            successful */
 787         EmptyList();
 788     }
 789
 790     /* now create the image list and add the applications to the listview */
 791     hImageList = AddListViewImageList(hWndListView);
 792
 793     ReadApplicationsFromRegistry(HKEY_LOCAL_MACHINE);
 794     ReadApplicationsFromRegistry(HKEY_CURRENT_USER);
 795
 796     AddApplicationsToList(hWndListView, hImageList);
 797     UpdateButtons(hWnd);
 798
 799     return(hImageList);
 800 }
 801
 802 /******************************************************************************
 803  * Name       : MainDlgProc
 804  * Description: Callback procedure for main tab
 805  * Parameters : hWnd    - hWnd of the window
 806  *              msg     - reason for calling function
 807  *              wParam  - additional parameter
 808  *              lParam  - additional parameter
 809  * Returns    : Dependant on message
 810  */
 811 static BOOL CALLBACK MainDlgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 812 {
 813     int selitem;
 814     static HIMAGELIST hImageList;
 815     LPNMHDR nmh;
 816     LVITEMW lvItem;
 817
 818     switch(msg)
 819     {
 820         case WM_INITDIALOG:
 821             hImageList = ResetApplicationList(TRUE, hWnd, hImageList);
 822
 823             if (!hImageList)
 824                 return FALSE;
 825
 826             return TRUE;
 827
 828         case WM_DESTROY:
 829             RemoveItemsFromList(hWnd);
 830             ImageList_Destroy(hImageList);
 831
 832             EmptyList();
 833
 834             return 0;
 835
 836         case WM_NOTIFY:
 837             nmh = (LPNMHDR) lParam;
 838
 839             switch (nmh->idFrom)
 840             {
 841                 case IDL_PROGRAMS:
 842                     switch (nmh->code)
 843                     {
 844                         case LVN_ITEMCHANGED:
 845                             UpdateButtons(hWnd);
 846                             break;
 847                     }
 848                     break;
 849             }
 850
 851             return TRUE;
 852
 853         case WM_COMMAND:
 854             switch (LOWORD(wParam))
 855             {
 856                 case IDC_INSTALL:
 857                     InstallProgram(hWnd);
 858                     break;
 859
 860                 case IDC_ADDREMOVE:
 861                 case IDC_MODIFY:
 862                     selitem = SendDlgItemMessageW(hWnd, IDL_PROGRAMS,
 863                         LVM_GETNEXTITEM, -1, LVNI_FOCUSED|LVNI_SELECTED);
 864
 865                     if (selitem != -1)
 866                     {
 867                         lvItem.iItem = selitem;
 868                         lvItem.mask = LVIF_PARAM;
 869
 870                         if (SendDlgItemMessageW(hWnd, IDL_PROGRAMS, LVM_GETITEMW,
 871                           0, (LPARAM) &lvItem))
 872                             UninstallProgram(lvItem.lParam, LOWORD(wParam));
 873                     }
 874
 875                     hImageList = ResetApplicationList(FALSE, hWnd, hImageList);
 876
 877                     break;
 878
 879                 case IDC_SUPPORT_INFO:
 880                     selitem = SendDlgItemMessageW(hWnd, IDL_PROGRAMS,
 881                         LVM_GETNEXTITEM, -1, LVNI_FOCUSED | LVNI_SELECTED);
 882
 883                     if (selitem != -1)
 884                     {
 885                         lvItem.iItem = selitem;
 886                         lvItem.mask = LVIF_PARAM;
 887
 888                         if (SendDlgItemMessageW(hWnd, IDL_PROGRAMS, LVM_GETITEMW,
 889                           0, (LPARAM) &lvItem))
 890                             SupportInfo(hWnd, lvItem.lParam);
 891                     }
 892
 893                     break;
 894             }
 895
 896             return TRUE;
 897     }
 898
 899     return FALSE;
 900 }
 901
 902 /******************************************************************************
 903  * Name       : StartApplet
 904  * Description: Main routine for applet
 905  * Parameters : hWnd    - hWnd of the Control Panel
 906  */
 907 static void StartApplet(HWND hWnd)
 908 {
 909     PROPSHEETPAGEW psp;
 910     PROPSHEETHEADERW psh;
 911     WCHAR tab_title[MAX_STRING_LEN], app_title[MAX_STRING_LEN];
 912
 913     /* Load the strings we will use */
 914     LoadStringW(hInst, IDS_TAB1_TITLE, tab_title, sizeof(tab_title) / sizeof(tab_title[0]));
 915     LoadStringW(hInst, IDS_CPL_TITLE, app_title, sizeof(app_title) / sizeof(app_title[0]));
 916     LoadStringW(hInst, IDS_REMOVE, btnRemove, sizeof(btnRemove) / sizeof(btnRemove[0]));
 917     LoadStringW(hInst, IDS_MODIFY_REMOVE, btnModifyRemove, sizeof(btnModifyRemove) / sizeof(btnModifyRemove[0]));
 918
 919     /* Fill out the PROPSHEETPAGE */
 920     psp.dwSize = sizeof (PROPSHEETPAGEW);
 921     psp.dwFlags = PSP_USETITLE;
 922     psp.hInstance = hInst;
 923     psp.u.pszTemplate = MAKEINTRESOURCEW (IDD_MAIN);
 924     psp.u2.pszIcon = NULL;
 925     psp.pfnDlgProc = (DLGPROC) MainDlgProc;
 926     psp.pszTitle = tab_title;
 927     psp.lParam = 0;
 928
 929     /* Fill out the PROPSHEETHEADER */
 930     psh.dwSize = sizeof (PROPSHEETHEADERW);
 931     psh.dwFlags = PSH_PROPSHEETPAGE | PSH_USEICONID;
 932     psh.hwndParent = hWnd;
 933     psh.hInstance = hInst;
 934     psh.u.pszIcon = NULL;
 935     psh.pszCaption = app_title;
 936     psh.nPages = 1;
 937     psh.u3.ppsp = &psp;
 938     psh.pfnCallback = NULL;
 939     psh.u2.nStartPage = 0;
 940
 941     /* Display the property sheet */
 942     PropertySheetW (&psh);
 943 }
 944
 945 /******************************************************************************
 946  * Name       : CPlApplet
 947  * Description: Entry point for Control Panel applets
 948  * Parameters : hwndCPL - hWnd of the Control Panel
 949  *              message - reason for calling function
 950  *              lParam1 - additional parameter
 951  *              lParam2 - additional parameter
 952  * Returns    : Dependant on message
 953  */
 954 LONG CALLBACK CPlApplet(HWND hwndCPL, UINT message, LPARAM lParam1, LPARAM lParam2)
 955 {
 956     INITCOMMONCONTROLSEX iccEx;
 957
 958     switch (message)
 959     {
 960         case CPL_INIT:
 961             iccEx.dwSize = sizeof(iccEx);
 962             iccEx.dwICC = ICC_LISTVIEW_CLASSES | ICC_TAB_CLASSES;
 963
 964             InitCommonControlsEx(&iccEx);
 965
 966             return TRUE;
 967
 968         case CPL_GETCOUNT:
 969             return 1;
 970
 971         case CPL_INQUIRE:
 972         {
 973             CPLINFO *appletInfo = (CPLINFO *) lParam2;
 974
 975             appletInfo->idIcon = ICO_MAIN;
 976             appletInfo->idName = IDS_CPL_TITLE;
 977             appletInfo->idInfo = IDS_CPL_DESC;
 978             appletInfo->lData = 0;
 979
 980             break;
 981         }
 982
 983         case CPL_DBLCLK:
 984             StartApplet(hwndCPL);
 985             break;
 986     }
 987
 988     return FALSE;
 989 }