programs/winecfg/libraries.c

   1 /*
   2  * WineCfg libraries tabsheet
   3  *
   4  * Copyright 2004 Robert van Herk
   5  * Copyright 2004 Mike Hearn
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  *
  21  */
  22
  23 #include "config.h"
  24 #include "wine/port.h"
  25
  26 #define NONAMELESSUNION
  27 #define WIN32_LEAN_AND_MEAN
  28 #include <windows.h>
  29 #include <commdlg.h>
  30 #include <wine/library.h>
  31 #include <wine/debug.h>
  32 #include <stdio.h>
  33 #include <dirent.h>
  34 #include <assert.h>
  35 #include <stdlib.h>
  36 #ifdef HAVE_SYS_STAT_H
  37 #include <sys/stat.h>
  38 #endif
  39 #ifdef HAVE_UNISTD_H
  40 #include <unistd.h>
  41 #endif
  42
  43 #include "winecfg.h"
  44 #include "resource.h"
  45
  46 WINE_DEFAULT_DEBUG_CHANNEL(winecfg);
  47
  48 /* dlls that shouldn't be configured anything other than builtin; list must be sorted*/
  49 static const char * const builtin_only[] =
  50 {
  51     "advapi32",
  52     "capi2032",
  53     "dbghelp",
  54     "ddraw",
  55     "gdi32",
  56     "glu32",
  57     "gphoto2.ds",
  58     "icmp",
  59     "iphlpapi",
  60     "kernel32",
  61     "mountmgr.sys",
  62     "mswsock",
  63     "ntdll",
  64     "ntoskrnl.exe",
  65     "opengl32",
  66     "sane.ds",
  67     "twain_32",
  68     "unicows",
  69     "user32",
  70     "vdmdbg",
  71     "w32skrnl",
  72     "wined3d",
  73     "winedos",
  74     "winemp3.acm",
  75     "wineps",
  76     "winmm",
  77     "wintab32",
  78     "wnaspi32",
  79     "wow32",
  80     "ws2_32",
  81     "wsock32",
  82 };
  83
  84 enum dllmode
  85 {
  86         BUILTIN_NATIVE,
  87         NATIVE_BUILTIN,
  88         BUILTIN,
  89         NATIVE,
  90         DISABLE,
  91         UNKNOWN /* Special value indicating an erroneous DLL override mode */
  92 };
  93
  94 struct dll
  95 {
  96         char *name;
  97         enum dllmode mode;
  98 };
  99
 100 static const WCHAR emptyW[1];
 101
 102 /* Convert a registry string to a dllmode */
 103 static enum dllmode string_to_mode(char *in)
 104 {
 105     int i, j, len;
 106     char *out;
 107     enum dllmode res;
 108
 109     len = strlen(in);
 110     out = HeapAlloc(GetProcessHeap(), 0, len);
 111
 112     /* remove the spaces */
 113     for (i = j = 0; i <= len; ++i) {
 114         if (in[i] != ' ') {
 115             out[j++] = in[i];
 116         }
 117     }
 118
 119     /* parse the string */
 120     res = UNKNOWN;
 121     if (strcmp(out, "builtin,native") == 0) res = BUILTIN_NATIVE;
 122     if (strcmp(out, "native,builtin") == 0) res = NATIVE_BUILTIN;
 123     if (strcmp(out, "builtin") == 0) res = BUILTIN;
 124     if (strcmp(out, "native") == 0) res = NATIVE;
 125     if (strcmp(out, "") == 0) res = DISABLE;
 126
 127     HeapFree(GetProcessHeap(), 0, out);
 128     return res;
 129 }
 130
 131 /* Convert a dllmode to a registry string. */
 132 static const char* mode_to_string(enum dllmode mode)
 133 {
 134     switch( mode )
 135     {
 136         case NATIVE: return "native";
 137         case BUILTIN: return "builtin";
 138         case NATIVE_BUILTIN: return "native,builtin";
 139         case BUILTIN_NATIVE: return "builtin,native";
 140         case DISABLE: return "";
 141         default: return "";
 142     }
 143 }
 144
 145 /* Convert a dllmode to a pretty string for display. TODO: use translations. */
 146 static const char* mode_to_label(enum dllmode mode)
 147 {
 148     static char buffer[256];
 149     UINT id = 0;
 150
 151     switch( mode )
 152     {
 153     case NATIVE: id = IDS_DLL_NATIVE; break;
 154     case BUILTIN: id = IDS_DLL_BUILTIN; break;
 155     case NATIVE_BUILTIN: id = IDS_DLL_NATIVE_BUILTIN; break;
 156     case BUILTIN_NATIVE: id = IDS_DLL_BUILTIN_NATIVE; break;
 157     case DISABLE: id = IDS_DLL_DISABLED; break;
 158     default: return "??";
 159     }
 160     if (!LoadStringA( GetModuleHandleA(NULL), id, buffer, sizeof(buffer) )) buffer[0] = 0;
 161     return buffer;
 162 }
 163
 164 /* Convert a control id (IDC_ constant) to a dllmode */
 165 static enum dllmode id_to_mode(DWORD id)
 166 {
 167     switch( id )
 168     {
 169         case IDC_RAD_BUILTIN: return BUILTIN;
 170         case IDC_RAD_NATIVE: return NATIVE;
 171         case IDC_RAD_NATIVE_BUILTIN: return NATIVE_BUILTIN;
 172         case IDC_RAD_BUILTIN_NATIVE: return BUILTIN_NATIVE;
 173         case IDC_RAD_DISABLE: return DISABLE;
 174         default: assert( FALSE ); return 0; /* should not be reached  */
 175     }
 176 }
 177
 178 /* Convert a dllmode to a control id (IDC_ constant) */
 179 static DWORD mode_to_id(enum dllmode mode)
 180 {
 181     switch( mode )
 182     {
 183         case BUILTIN: return IDC_RAD_BUILTIN;
 184         case NATIVE: return IDC_RAD_NATIVE;
 185         case NATIVE_BUILTIN: return IDC_RAD_NATIVE_BUILTIN;
 186         case BUILTIN_NATIVE: return IDC_RAD_BUILTIN_NATIVE;
 187         case DISABLE: return IDC_RAD_DISABLE;
 188         default: return IDC_RAD_BUILTIN_NATIVE;
 189     }
 190 }
 191
 192 /* helper for is_builtin_only */
 193 static int compare_dll( const void *ptr1, const void *ptr2 )
 194 {
 195     const char * const *name1 = ptr1;
 196     const char * const *name2 = ptr2;
 197     return strcmp( *name1, *name2 );
 198 }
 199
 200 /* check if dll is recommended as builtin only */
 201 static inline int is_builtin_only( const char *name )
 202 {
 203     const char *ext = strrchr( name, '.' );
 204
 205     if (ext)
 206     {
 207         if (!strcmp( ext, ".vxd" ) ||
 208             !strcmp( ext, ".drv" ) ||
 209             !strcmp( ext, ".tlb" ))
 210             return TRUE;
 211     }
 212     return bsearch( &name, builtin_only, sizeof(builtin_only)/sizeof(builtin_only[0]),
 213                     sizeof(builtin_only[0]), compare_dll ) != NULL;
 214 }
 215
 216 /* check if dll should be offered in the drop-down list */
 217 static int show_dll_in_list( const char *name )
 218 {
 219     const char *ext = strrchr( name, '.' );
 220
 221     if (ext)
 222     {
 223         /* skip 16-bit dlls */
 224         if (strlen(ext) > 2 && !strcmp( ext + strlen(ext) - 2, "16" )) return FALSE;
 225         /* skip exes */
 226         if (!strcmp( ext, ".exe" )) return FALSE;
 227     }
 228     /* skip dlls that should always be builtin */
 229     return !is_builtin_only( name );
 230 }
 231
 232 static void set_controls_from_selection(HWND dialog)
 233 {
 234     /* FIXME: display/update some information about the selected dll (purpose, recommended load order) maybe? */
 235 }
 236
 237 static void clear_settings(HWND dialog)
 238 {
 239     int count = SendDlgItemMessageW(dialog, IDC_DLLS_LIST, LB_GETCOUNT, 0, 0);
 240     int i;
 241
 242     WINE_TRACE("count=%d\n", count);
 243
 244     for (i = 0; i < count; i++)
 245     {
 246         struct dll *dll = (struct dll *) SendDlgItemMessageW(dialog, IDC_DLLS_LIST, LB_GETITEMDATA, 0, 0);
 247
 248         SendDlgItemMessageW(dialog, IDC_DLLS_LIST, LB_DELETESTRING, 0, 0);
 249         HeapFree(GetProcessHeap(), 0, dll->name);
 250         HeapFree(GetProcessHeap(), 0, dll);
 251     }
 252 }
 253
 254 /* load the list of available libraries from a given dir */
 255 static void load_library_list_from_dir( HWND dialog, const char *dir_path, int check_subdirs )
 256 {
 257     char *buffer = NULL, name[256];
 258     struct dirent *de;
 259     DIR *dir = opendir( dir_path );
 260
 261     if (!dir) return;
 262
 263     if (check_subdirs)
 264         buffer = HeapAlloc( GetProcessHeap(), 0, strlen(dir_path) + 2 * sizeof(name) + 10 );
 265
 266     while ((de = readdir( dir )))
 267     {
 268         size_t len = strlen(de->d_name);
 269         if (len > sizeof(name)) continue;
 270         if (len > 3 && !strcmp( de->d_name + len - 3, ".so"))
 271         {
 272             len -= 3;
 273             if (len > 4 && !strcmp( de->d_name + len - 4, ".dll.so")) len -= 4;
 274             memcpy( name, de->d_name, len );
 275             name[len] = 0;
 276             if (!show_dll_in_list( name )) continue;
 277             SendDlgItemMessageA( dialog, IDC_DLLCOMBO, CB_ADDSTRING, 0, (LPARAM)name );
 278         }
 279         else if (check_subdirs)
 280         {
 281             struct stat st;
 282             if (!show_dll_in_list( de->d_name )) continue;
 283             sprintf( buffer, "%s/%s/%s.dll.so", dir_path, de->d_name, de->d_name );
 284             if (!stat( buffer, &st ))
 285             {
 286                 SendDlgItemMessageA( dialog, IDC_DLLCOMBO, CB_ADDSTRING, 0, (LPARAM)de->d_name );
 287                 continue;
 288             }
 289             sprintf( buffer, "%s/%s/%s.so", dir_path, de->d_name, de->d_name );
 290             if (!stat( buffer, &st ))
 291             {
 292                 SendDlgItemMessageA( dialog, IDC_DLLCOMBO, CB_ADDSTRING, 0, (LPARAM)de->d_name );
 293                 continue;
 294             }
 295         }
 296     }
 297     closedir( dir );
 298     HeapFree( GetProcessHeap(), 0, buffer );
 299 }
 300
 301 /* load the list of available libraries */
 302 static void load_library_list( HWND dialog )
 303 {
 304     unsigned int i = 0;
 305     const char *path, *build_dir = wine_get_build_dir();
 306     char item1[256], item2[256];
 307     HCURSOR old_cursor = SetCursor( LoadCursorW(0, (LPWSTR)IDC_WAIT) );
 308
 309     if (build_dir)
 310     {
 311         char *dir = HeapAlloc( GetProcessHeap(), 0, strlen(build_dir) + sizeof("/dlls") );
 312         strcpy( dir, build_dir );
 313         strcat( dir, "/dlls" );
 314         load_library_list_from_dir( dialog, dir, TRUE );
 315         HeapFree( GetProcessHeap(), 0, dir );
 316     }
 317
 318     while ((path = wine_dll_enum_load_path( i++ )))
 319         load_library_list_from_dir( dialog, path, FALSE );
 320
 321     /* get rid of duplicate entries */
 322
 323     SendDlgItemMessageA( dialog, IDC_DLLCOMBO, CB_GETLBTEXT, 0, (LPARAM)item1 );
 324     i = 1;
 325     while (SendDlgItemMessageA( dialog, IDC_DLLCOMBO, CB_GETLBTEXT, i, (LPARAM)item2 ) >= 0)
 326     {
 327         if (!strcmp( item1, item2 ))
 328         {
 329             SendDlgItemMessageA( dialog, IDC_DLLCOMBO, CB_DELETESTRING, i, 0 );
 330         }
 331         else
 332         {
 333             strcpy( item1, item2 );
 334             i++;
 335         }
 336     }
 337     SetCursor( old_cursor );
 338 }
 339
 340 static void load_library_settings(HWND dialog)
 341 {
 342     char **overrides = enumerate_values(config_key, keypath("DllOverrides"));
 343     char **p;
 344     int sel, count = 0;
 345
 346     sel = SendDlgItemMessageW(dialog, IDC_DLLS_LIST, LB_GETCURSEL, 0, 0);
 347
 348     WINE_TRACE("sel=%d\n", sel);
 349
 350     clear_settings(dialog);
 351
 352     if (!overrides || *overrides == NULL)
 353     {
 354         set_controls_from_selection(dialog);
 355         disable(IDC_DLLS_EDITDLL);
 356         disable(IDC_DLLS_REMOVEDLL);
 357         HeapFree(GetProcessHeap(), 0, overrides);
 358         return;
 359     }
 360
 361     enable(IDC_DLLS_EDITDLL);
 362     enable(IDC_DLLS_REMOVEDLL);
 363
 364     for (p = overrides; *p != NULL; p++)
 365     {
 366         int index;
 367         char *str, *value;
 368         const char *label;
 369         struct dll *dll;
 370
 371         value = get_reg_key(config_key, keypath("DllOverrides"), *p, NULL);
 372
 373         label = mode_to_label(string_to_mode(value));
 374
 375         str = HeapAlloc(GetProcessHeap(), 0, strlen(*p) + 2 + strlen(label) + 2);
 376         strcpy(str, *p);
 377         strcat(str, " (");
 378         strcat(str, label);
 379         strcat(str, ")");
 380
 381         dll = HeapAlloc(GetProcessHeap(), 0, sizeof(struct dll));
 382         dll->name = *p;
 383         dll->mode = string_to_mode(value);
 384
 385         index = SendDlgItemMessageA(dialog, IDC_DLLS_LIST, LB_ADDSTRING, (WPARAM) -1, (LPARAM) str);
 386         SendDlgItemMessageW(dialog, IDC_DLLS_LIST, LB_SETITEMDATA, index, (LPARAM) dll);
 387
 388         HeapFree(GetProcessHeap(), 0, str);
 389
 390         count++;
 391     }
 392
 393     HeapFree(GetProcessHeap(), 0, overrides);
 394
 395     /* restore the previous selection, if possible  */
 396     if (sel >= count - 1) sel = count - 1;
 397     else if (sel == -1) sel = 0;
 398
 399     SendDlgItemMessageW(dialog, IDC_DLLS_LIST, LB_SETCURSEL, sel, 0);
 400
 401     set_controls_from_selection(dialog);
 402 }
 403
 404 /* Called when the application is initialized (cannot reinit!)  */
 405 static void init_libsheet(HWND dialog)
 406 {
 407     /* clear the add dll controls  */
 408     SendDlgItemMessageW(dialog, IDC_DLLCOMBO, WM_SETTEXT, 1, (LPARAM)emptyW);
 409     load_library_list( dialog );
 410     disable(IDC_DLLS_ADDDLL);
 411 }
 412
 413 static void on_add_combo_change(HWND dialog)
 414 {
 415     WCHAR buffer[1024];
 416     int sel, len;
 417
 418     SendDlgItemMessageW(dialog, IDC_DLLCOMBO, WM_GETTEXT, sizeof(buffer)/sizeof(WCHAR), (LPARAM) buffer);
 419     /* if lib was chosen from combobox, we receive an empty buffer, check manually */
 420     sel=SendDlgItemMessageW(dialog, IDC_DLLCOMBO, CB_GETCURSEL, 0, 0);
 421     len=SendDlgItemMessageW(dialog, IDC_DLLCOMBO, CB_GETLBTEXTLEN, sel, 0);
 422
 423     if (buffer[0] || len>0)
 424         enable(IDC_DLLS_ADDDLL)
 425     else
 426         disable(IDC_DLLS_ADDDLL);
 427 }
 428
 429 static void set_dllmode(HWND dialog, DWORD id)
 430 {
 431     enum dllmode mode;
 432     struct dll *dll;
 433     int sel;
 434     const char *str;
 435
 436     mode = id_to_mode(id);
 437
 438     sel = SendDlgItemMessageW(dialog, IDC_DLLS_LIST, LB_GETCURSEL, 0, 0);
 439     if (sel == -1) return;
 440
 441     dll = (struct dll *) SendDlgItemMessageW(dialog, IDC_DLLS_LIST, LB_GETITEMDATA, sel, 0);
 442
 443     str = mode_to_string(mode);
 444     WINE_TRACE("Setting %s to %s\n", dll->name, str);
 445
 446     SendMessageW(GetParent(dialog), PSM_CHANGED, 0, 0);
 447     set_reg_key(config_key, keypath("DllOverrides"), dll->name, str);
 448
 449     load_library_settings(dialog);  /* ... and refresh  */
 450 }
 451
 452 static void on_add_click(HWND dialog)
 453 {
 454     static const char dotDll[] = ".dll";
 455     char buffer[1024], *ptr;
 456
 457     ZeroMemory(buffer, sizeof(buffer));
 458
 459     SendDlgItemMessageA(dialog, IDC_DLLCOMBO, WM_GETTEXT, sizeof(buffer), (LPARAM) buffer);
 460     if (lstrlenA(buffer) >= sizeof(dotDll))
 461     {
 462         ptr = buffer + lstrlenA(buffer) - sizeof(dotDll) + 1;
 463         if (!lstrcmpiA(ptr, dotDll))
 464         {
 465             WINE_TRACE("Stripping dll extension\n");
 466             *ptr = '\0';
 467         }
 468     }
 469
 470     /* check if dll is in the builtin-only list */
 471     if (!(ptr = strrchr( buffer, '\\' )))
 472     {
 473         ptr = buffer;
 474         if (*ptr == '*') ptr++;
 475     }
 476     else ptr++;
 477     if (is_builtin_only( ptr ))
 478     {
 479         MSGBOXPARAMSA params;
 480         params.cbSize = sizeof(params);
 481         params.hwndOwner = dialog;
 482         params.hInstance = GetModuleHandleA( NULL );
 483         params.lpszText = MAKEINTRESOURCEA( IDS_DLL_WARNING );
 484         params.lpszCaption = MAKEINTRESOURCEA( IDS_DLL_WARNING_CAPTION );
 485         params.dwStyle = MB_ICONWARNING | MB_YESNO;
 486         params.lpszIcon = NULL;
 487         params.dwContextHelpId = 0;
 488         params.lpfnMsgBoxCallback = NULL;
 489         params.dwLanguageId = 0;
 490         if (MessageBoxIndirectA( &params ) != IDYES) return;
 491     }
 492
 493     SendDlgItemMessageW(dialog, IDC_DLLCOMBO, WM_SETTEXT, 0, (LPARAM)emptyW);
 494     disable(IDC_DLLS_ADDDLL);
 495
 496     WINE_TRACE("Adding %s as native, builtin\n", buffer);
 497
 498     SendMessageW(GetParent(dialog), PSM_CHANGED, 0, 0);
 499     set_reg_key(config_key, keypath("DllOverrides"), buffer, "native,builtin");
 500
 501     load_library_settings(dialog);
 502
 503     SendDlgItemMessageA(dialog, IDC_DLLS_LIST, LB_SELECTSTRING, 0, (LPARAM) buffer);
 504
 505     set_controls_from_selection(dialog);
 506 }
 507
 508 static INT_PTR CALLBACK loadorder_dlgproc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
 509 {
 510     static WORD sel;
 511
 512     switch(uMsg)
 513     {
 514     case WM_INITDIALOG:
 515         CheckRadioButton(hwndDlg, IDC_RAD_BUILTIN, IDC_RAD_DISABLE, lParam);
 516         sel = lParam;
 517         return TRUE;
 518
 519     case WM_COMMAND:
 520         if(HIWORD(wParam) != BN_CLICKED) break;
 521         switch (LOWORD(wParam))
 522         {
 523         case IDC_RAD_BUILTIN:
 524         case IDC_RAD_NATIVE:
 525         case IDC_RAD_BUILTIN_NATIVE:
 526         case IDC_RAD_NATIVE_BUILTIN:
 527         case IDC_RAD_DISABLE:
 528             sel = LOWORD(wParam);
 529             return TRUE;
 530         case IDOK:
 531             EndDialog(hwndDlg, sel);
 532             return TRUE;
 533         case IDCANCEL:
 534             EndDialog(hwndDlg, wParam);
 535             return TRUE;
 536         }
 537     }
 538     return FALSE;
 539 }
 540
 541 static void on_edit_click(HWND hwnd)
 542 {
 543     INT_PTR ret;
 544     int index = SendDlgItemMessageW(hwnd, IDC_DLLS_LIST, LB_GETCURSEL, 0, 0);
 545     struct dll *dll;
 546     DWORD id;
 547
 548     /* if no override is selected the edit button should be disabled... */
 549     assert(index != -1);
 550
 551     dll = (struct dll *) SendDlgItemMessageW(hwnd, IDC_DLLS_LIST, LB_GETITEMDATA, index, 0);
 552     id = mode_to_id(dll->mode);
 553
 554     ret = DialogBoxParamW(0, MAKEINTRESOURCEW(IDD_LOADORDER), hwnd, loadorder_dlgproc, id);
 555
 556     if(ret != IDCANCEL)
 557         set_dllmode(hwnd, ret);
 558 }
 559
 560 static void on_remove_click(HWND dialog)
 561 {
 562     int sel = SendDlgItemMessageW(dialog, IDC_DLLS_LIST, LB_GETCURSEL, 0, 0);
 563     struct dll *dll;
 564
 565     if (sel == LB_ERR) return;
 566
 567     dll = (struct dll *) SendDlgItemMessageW(dialog, IDC_DLLS_LIST, LB_GETITEMDATA, sel, 0);
 568
 569     SendDlgItemMessageW(dialog, IDC_DLLS_LIST, LB_DELETESTRING, sel, 0);
 570
 571     SendMessageW(GetParent(dialog), PSM_CHANGED, 0, 0);
 572     set_reg_key(config_key, keypath("DllOverrides"), dll->name, NULL);
 573
 574     HeapFree(GetProcessHeap(), 0, dll->name);
 575     HeapFree(GetProcessHeap(), 0, dll);
 576
 577     if (SendDlgItemMessageW(dialog, IDC_DLLS_LIST, LB_GETCOUNT, 0, 0) > 0)
 578         SendDlgItemMessageW(dialog, IDC_DLLS_LIST, LB_SETCURSEL, max(sel - 1, 0), 0);
 579     else
 580     {
 581         disable(IDC_DLLS_EDITDLL);
 582         disable(IDC_DLLS_REMOVEDLL);
 583     }
 584
 585     set_controls_from_selection(dialog);
 586 }
 587
 588 INT_PTR CALLBACK
 589 LibrariesDlgProc (HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
 590 {
 591         switch (uMsg)
 592         {
 593         case WM_INITDIALOG:
 594                 init_libsheet(hDlg);
 595                 break;
 596         case WM_SHOWWINDOW:
 597                 set_window_title(hDlg);
 598                 break;
 599         case WM_NOTIFY:
 600                 switch (((LPNMHDR)lParam)->code) {
 601                 case PSN_SETACTIVE:
 602                     load_library_settings(hDlg);
 603                     break;
 604                 }
 605                 break;
 606         case WM_COMMAND:
 607                 switch(HIWORD(wParam)) {
 608
 609                     /* FIXME: when the user hits enter in the DLL combo box we should invoke the add
 610                      * add button, rather than the propsheet OK button. But I don't know how to do that!
 611                      */
 612
 613                 case CBN_EDITCHANGE:
 614                         if(LOWORD(wParam) == IDC_DLLCOMBO)
 615                         {
 616                             on_add_combo_change(hDlg);
 617                             break;
 618                         }
 619
 620                 case BN_CLICKED:
 621                         switch(LOWORD(wParam)) {
 622                         case IDC_DLLS_ADDDLL:
 623                             on_add_click(hDlg);
 624                             break;
 625                         case IDC_DLLS_EDITDLL:
 626                             on_edit_click(hDlg);
 627                             break;
 628                         case IDC_DLLS_REMOVEDLL:
 629                             on_remove_click(hDlg);
 630                             break;
 631                         }
 632                         break;
 633                 case LBN_SELCHANGE:
 634                         if(LOWORD(wParam) == IDC_DLLCOMBO)
 635                             on_add_combo_change(hDlg);
 636                         else
 637                             set_controls_from_selection(hDlg);
 638                         break;
 639                 }
 640                 break;
 641         }
 642
 643         return 0;
 644 }