dlls/user/user_main.c

   1 /*
   2  * USER initialization code
   3  *
   4  * Copyright 2000 Alexandre Julliard
   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <stdarg.h>
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "wingdi.h"
  27 #include "winuser.h"
  28 #include "winreg.h"
  29 #include "tlhelp32.h"
  30
  31 #include "controls.h"
  32 #include "user_private.h"
  33 #include "win.h"
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(graphics);
  37
  38 USER_DRIVER USER_Driver;
  39
  40 WORD USER_HeapSel = 0;  /* USER heap selector */
  41 HMODULE user32_module = 0;
  42
  43 static SYSLEVEL USER_SysLevel;
  44 static CRITICAL_SECTION_DEBUG critsect_debug =
  45 {
  46     0, 0, &USER_SysLevel.crst,
  47     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  48       0, 0, { 0, (DWORD)(__FILE__ ": USER_SysLevel") }
  49 };
  50 static SYSLEVEL USER_SysLevel = { { &critsect_debug, -1, 0, 0, 0, 0 }, 2 };
  51
  52 static HPALETTE (WINAPI *pfnGDISelectPalette)( HDC hdc, HPALETTE hpal, WORD bkgnd );
  53 static UINT (WINAPI *pfnGDIRealizePalette)( HDC hdc );
  54 static HPALETTE hPrimaryPalette;
  55
  56 static HMODULE graphics_driver;
  57 static DWORD exiting_thread_id;
  58
  59 extern void WDML_NotifyThreadDetach(void);
  60
  61 #define GET_USER_FUNC(name) USER_Driver.p##name = (void*)GetProcAddress( graphics_driver, #name )
  62
  63 /* load the graphics driver */
  64 static BOOL load_driver(void)
  65 {
  66     char buffer[MAX_PATH], libname[32], *name, *next;
  67     HKEY hkey;
  68
  69     strcpy( buffer, "x11,tty" );  /* default value */
  70     if (!RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Wine\\Drivers", &hkey ))
  71     {
  72         DWORD type, count = sizeof(buffer);
  73         RegQueryValueExA( hkey, "Graphics", 0, &type, buffer, &count );
  74         RegCloseKey( hkey );
  75     }
  76
  77     name = buffer;
  78     while (name)
  79     {
  80         next = strchr( name, ',' );
  81         if (next) *next++ = 0;
  82
  83         snprintf( libname, sizeof(libname), "wine%s.drv", name );
  84         if ((graphics_driver = LoadLibraryA( libname )) != 0) break;
  85         name = next;
  86     }
  87     if (!graphics_driver)
  88     {
  89         MESSAGE( "wine: Could not load graphics driver '%s'.\n", buffer );
  90         if (!strcasecmp( buffer, "x11" ))
  91             MESSAGE( "Make sure that your X server is running and that $DISPLAY is set correctly.\n" );
  92         ExitProcess(1);
  93     }
  94
  95     GET_USER_FUNC(ActivateKeyboardLayout);
  96     GET_USER_FUNC(Beep);
  97     GET_USER_FUNC(GetAsyncKeyState);
  98     GET_USER_FUNC(GetKeyNameText);
  99     GET_USER_FUNC(GetKeyboardLayout);
 100     GET_USER_FUNC(GetKeyboardLayoutList);
 101     GET_USER_FUNC(GetKeyboardLayoutName);
 102     GET_USER_FUNC(LoadKeyboardLayout);
 103     GET_USER_FUNC(MapVirtualKeyEx);
 104     GET_USER_FUNC(SendInput);
 105     GET_USER_FUNC(ToUnicodeEx);
 106     GET_USER_FUNC(UnloadKeyboardLayout);
 107     GET_USER_FUNC(VkKeyScanEx);
 108     GET_USER_FUNC(SetCursor);
 109     GET_USER_FUNC(GetCursorPos);
 110     GET_USER_FUNC(SetCursorPos);
 111     GET_USER_FUNC(GetScreenSaveActive);
 112     GET_USER_FUNC(SetScreenSaveActive);
 113     GET_USER_FUNC(AcquireClipboard);
 114     GET_USER_FUNC(EmptyClipboard);
 115     GET_USER_FUNC(SetClipboardData);
 116     GET_USER_FUNC(GetClipboardData);
 117     GET_USER_FUNC(CountClipboardFormats);
 118     GET_USER_FUNC(EnumClipboardFormats);
 119     GET_USER_FUNC(IsClipboardFormatAvailable);
 120     GET_USER_FUNC(RegisterClipboardFormat);
 121     GET_USER_FUNC(GetClipboardFormatName);
 122     GET_USER_FUNC(EndClipboardUpdate);
 123     GET_USER_FUNC(ResetSelectionOwner);
 124     GET_USER_FUNC(ChangeDisplaySettingsExW);
 125     GET_USER_FUNC(EnumDisplaySettingsExW);
 126     GET_USER_FUNC(CreateWindow);
 127     GET_USER_FUNC(DestroyWindow);
 128     GET_USER_FUNC(GetDCEx);
 129     GET_USER_FUNC(MsgWaitForMultipleObjectsEx);
 130     GET_USER_FUNC(ReleaseDC);
 131     GET_USER_FUNC(ScrollDC);
 132     GET_USER_FUNC(SetFocus);
 133     GET_USER_FUNC(SetParent);
 134     GET_USER_FUNC(SetWindowPos);
 135     GET_USER_FUNC(SetWindowRgn);
 136     GET_USER_FUNC(SetWindowIcon);
 137     GET_USER_FUNC(SetWindowStyle);
 138     GET_USER_FUNC(SetWindowText);
 139     GET_USER_FUNC(ShowWindow);
 140     GET_USER_FUNC(SysCommandSizeMove);
 141     GET_USER_FUNC(WindowFromDC);
 142     GET_USER_FUNC(WindowMessage);
 143
 144     return TRUE;
 145 }
 146
 147
 148 /***********************************************************************
 149  *           USER_Lock
 150  */
 151 void USER_Lock(void)
 152 {
 153     _EnterSysLevel( &USER_SysLevel );
 154 }
 155
 156
 157 /***********************************************************************
 158  *           USER_Unlock
 159  */
 160 void USER_Unlock(void)
 161 {
 162     _LeaveSysLevel( &USER_SysLevel );
 163 }
 164
 165
 166 /***********************************************************************
 167  *           USER_CheckNotLock
 168  *
 169  * Make sure that we don't hold the user lock.
 170  */
 171 void USER_CheckNotLock(void)
 172 {
 173     _CheckNotSysLevel( &USER_SysLevel );
 174 }
 175
 176
 177 /***********************************************************************
 178  *              UserSelectPalette (Not a Windows API)
 179  */
 180 static HPALETTE WINAPI UserSelectPalette( HDC hDC, HPALETTE hPal, BOOL bForceBackground )
 181 {
 182     WORD wBkgPalette = 1;
 183
 184     if (!bForceBackground && (hPal != GetStockObject(DEFAULT_PALETTE)))
 185     {
 186         HWND hwnd = WindowFromDC( hDC );
 187         if (hwnd)
 188         {
 189             HWND hForeground = GetForegroundWindow();
 190             /* set primary palette if it's related to current active */
 191             if (hForeground == hwnd || IsChild(hForeground,hwnd))
 192             {
 193                 wBkgPalette = 0;
 194                 hPrimaryPalette = hPal;
 195             }
 196         }
 197     }
 198     return pfnGDISelectPalette( hDC, hPal, wBkgPalette);
 199 }
 200
 201
 202 /***********************************************************************
 203  *              UserRealizePalette (USER32.@)
 204  */
 205 UINT WINAPI UserRealizePalette( HDC hDC )
 206 {
 207     UINT realized = pfnGDIRealizePalette( hDC );
 208
 209     /* do not send anything if no colors were changed */
 210     if (realized && GetCurrentObject( hDC, OBJ_PAL ) == hPrimaryPalette)
 211     {
 212         /* send palette change notification */
 213         HWND hWnd = WindowFromDC( hDC );
 214         if (hWnd) SendMessageTimeoutW( HWND_BROADCAST, WM_PALETTECHANGED, (WPARAM)hWnd, 0,
 215                                        SMTO_ABORTIFHUNG, 2000, NULL );
 216     }
 217     return realized;
 218 }
 219
 220
 221 /***********************************************************************
 222  *           palette_init
 223  *
 224  * Patch the function pointers in GDI for SelectPalette and RealizePalette
 225  */
 226 static void palette_init(void)
 227 {
 228     void **ptr;
 229     HMODULE module = GetModuleHandleA( "gdi32" );
 230     if (!module)
 231     {
 232         ERR( "cannot get GDI32 handle\n" );
 233         return;
 234     }
 235     if ((ptr = (void**)GetProcAddress( module, "pfnSelectPalette" )))
 236         pfnGDISelectPalette = InterlockedExchangePointer( ptr, UserSelectPalette );
 237     else ERR( "cannot find pfnSelectPalette in GDI32\n" );
 238     if ((ptr = (void**)GetProcAddress( module, "pfnRealizePalette" )))
 239         pfnGDIRealizePalette = InterlockedExchangePointer( ptr, UserRealizePalette );
 240     else ERR( "cannot find pfnRealizePalette in GDI32\n" );
 241 }
 242
 243
 244 /***********************************************************************
 245  *           USER initialisation routine
 246  */
 247 static BOOL process_attach(void)
 248 {
 249     HINSTANCE16 instance;
 250
 251     /* Create USER heap */
 252     if ((instance = LoadLibrary16( "USER.EXE" )) >= 32) USER_HeapSel = instance | 7;
 253     else
 254     {
 255         USER_HeapSel = GlobalAlloc16( GMEM_FIXED, 65536 );
 256         LocalInit16( USER_HeapSel, 32, 65534 );
 257     }
 258
 259     /* some Win9x dlls expect keyboard to be loaded */
 260     if (GetVersion() & 0x80000000) LoadLibrary16( "keyboard.drv" );
 261
 262     /* Load the graphics driver */
 263     if (!load_driver()) return FALSE;
 264
 265     /* Initialize system colors and metrics */
 266     SYSPARAMS_Init();
 267
 268     /* Setup palette function pointers */
 269     palette_init();
 270
 271     /* Initialize built-in window classes */
 272     CLASS_RegisterBuiltinClasses();
 273
 274     /* Initialize menus */
 275     if (!MENU_Init()) return FALSE;
 276
 277     /* Initialize message spying */
 278     if (!SPY_Init()) return FALSE;
 279
 280     /* Create desktop window */
 281     if (!WIN_CreateDesktopWindow()) return FALSE;
 282
 283     return TRUE;
 284 }
 285
 286
 287 /**********************************************************************
 288  *           USER_IsExitingThread
 289  */
 290 BOOL USER_IsExitingThread( DWORD tid )
 291 {
 292     return (tid == exiting_thread_id);
 293 }
 294
 295
 296 /**********************************************************************
 297  *           thread_detach
 298  */
 299 static void thread_detach(void)
 300 {
 301     exiting_thread_id = GetCurrentThreadId();
 302
 303     WDML_NotifyThreadDetach();
 304
 305     WIN_DestroyThreadWindows( GetDesktopWindow() );
 306     CloseHandle( get_user_thread_info()->server_queue );
 307
 308     exiting_thread_id = 0;
 309 }
 310
 311
 312 /**********************************************************************
 313  *           process_detach
 314  */
 315 static void process_detach(void)
 316 {
 317     memset(&USER_Driver, 0, sizeof(USER_Driver));
 318     FreeLibrary(graphics_driver);
 319 }
 320
 321 /***********************************************************************
 322  *           UserClientDllInitialize  (USER32.@)
 323  *
 324  * USER dll initialisation routine (exported as UserClientDllInitialize for compatibility).
 325  */
 326 BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
 327 {
 328     BOOL ret = TRUE;
 329     switch(reason)
 330     {
 331     case DLL_PROCESS_ATTACH:
 332         user32_module = inst;
 333         ret = process_attach();
 334         break;
 335     case DLL_PROCESS_DETACH:
 336         process_detach();
 337         break;
 338     case DLL_THREAD_DETACH:
 339         thread_detach();
 340         break;
 341     }
 342     return ret;
 343 }
 344
 345
 346 /***********************************************************************
 347  *           USER_GetProcessHandleList(Internal)
 348  */
 349 static HANDLE *USER_GetProcessHandleList(void)
 350 {
 351     DWORD count, i, n;
 352     HANDLE *list;
 353     PROCESSENTRY32 pe;
 354     HANDLE hSnapshot;
 355     BOOL r;
 356
 357     hSnapshot = CreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 );
 358     if (!hSnapshot)
 359     {
 360         ERR("cannot create snapshot\n");
 361         return FALSE;
 362     }
 363
 364     /* count the number of processes plus one */
 365     for (count=0; ;count++)
 366     {
 367         pe.dwSize = sizeof pe;
 368         if (count)
 369             r = Process32Next( hSnapshot, &pe );
 370         else
 371             r = Process32First( hSnapshot, &pe );
 372         if (!r)
 373             break;
 374     }
 375
 376     /* allocate memory make a list of the process handles */
 377     list = HeapAlloc( GetProcessHeap(), 0, (count+1)*sizeof(HANDLE) );
 378     n=0;
 379     for (i=0; i<count; i++)
 380     {
 381         pe.dwSize = sizeof pe;
 382         if (i)
 383             r = Process32Next( hSnapshot, &pe );
 384         else
 385             r = Process32First( hSnapshot, &pe );
 386         if (!r)
 387             break;
 388
 389         /* don't kill ourselves */
 390         if (GetCurrentProcessId() == pe.th32ProcessID )
 391             continue;
 392
 393         /* open the process so we don't can track it */
 394         list[n] = OpenProcess( PROCESS_QUERY_INFORMATION|
 395                                   PROCESS_TERMINATE,
 396                                   FALSE, pe.th32ProcessID );
 397
 398         /* check it didn't terminate already */
 399         if( list[n] )
 400             n++;
 401     }
 402     list[n]=0;
 403     CloseHandle( hSnapshot );
 404
 405     if (!r)
 406         ERR("Error enumerating processes\n");
 407
 408     TRACE("return %lu processes\n", n);
 409
 410     return list;
 411 }
 412
 413
 414 /***********************************************************************
 415  *              USER_KillProcesses (Internal)
 416  */
 417 static DWORD USER_KillProcesses(void)
 418 {
 419     DWORD n, r, i;
 420     HANDLE *handles;
 421     const DWORD dwShutdownTimeout = 10000;
 422
 423     TRACE("terminating other processes\n");
 424
 425     /* kill it and add it to our list of object to wait on */
 426     handles = USER_GetProcessHandleList();
 427     for (n=0; handles && handles[n]; n++)
 428         TerminateProcess( handles[n], 0 );
 429
 430     /* wait for processes to exit */
 431     for (i=0; i<n; i+=MAXIMUM_WAIT_OBJECTS)
 432     {
 433         int n_objs = ((n-i)>MAXIMUM_WAIT_OBJECTS) ? MAXIMUM_WAIT_OBJECTS : (n-i);
 434         r = WaitForMultipleObjects( n_objs, &handles[i], TRUE, dwShutdownTimeout );
 435         if (r==WAIT_TIMEOUT)
 436             ERR("wait failed!\n");
 437     }
 438
 439     /* close the handles */
 440     for (i=0; i<n; i++)
 441         CloseHandle( handles[i] );
 442
 443     HeapFree( GetProcessHeap(), 0, handles );
 444
 445     return n;
 446 }
 447
 448
 449 /***********************************************************************
 450  *              USER_DoShutdown (Internal)
 451  */
 452 static void USER_DoShutdown(void)
 453 {
 454     DWORD i, n;
 455     const DWORD nRetries = 10;
 456
 457     for (i=0; i<nRetries; i++)
 458     {
 459         n = USER_KillProcesses();
 460         TRACE("Killed %ld processes, attempt %ld\n", n, i);
 461         if(!n)
 462             break;
 463     }
 464 }
 465
 466
 467 /***********************************************************************
 468  *              ExitWindowsEx (USER32.@)
 469  */
 470 BOOL WINAPI ExitWindowsEx( UINT flags, DWORD reserved )
 471 {
 472     int i;
 473     BOOL result = FALSE;
 474     HWND *list, *phwnd;
 475
 476     /* We have to build a list of all windows first, as in EnumWindows */
 477     TRACE("(%x,%lx)\n", flags, reserved);
 478
 479     list = WIN_ListChildren( GetDesktopWindow() );
 480     if (list)
 481     {
 482         /* Send a WM_QUERYENDSESSION message to every window */
 483
 484         for (i = 0; list[i]; i++)
 485         {
 486             /* Make sure that the window still exists */
 487             if (!IsWindow( list[i] )) continue;
 488             if (!SendMessageW( list[i], WM_QUERYENDSESSION, 0, 0 )) break;
 489         }
 490         result = !list[i];
 491
 492         /* Now notify all windows that got a WM_QUERYENDSESSION of the result */
 493
 494         for (phwnd = list; i > 0; i--, phwnd++)
 495         {
 496             if (!IsWindow( *phwnd )) continue;
 497             SendMessageW( *phwnd, WM_ENDSESSION, result, 0 );
 498         }
 499         HeapFree( GetProcessHeap(), 0, list );
 500
 501         if ( !(result || (flags & EWX_FORCE) ))
 502             return FALSE;
 503     }
 504
 505     /* USER_DoShutdown will kill all processes except the current process */
 506     USER_DoShutdown();
 507
 508     if (flags & EWX_REBOOT)
 509     {
 510         WCHAR winebootW[] = { 'w','i','n','e','b','o','o','t',0 };
 511         PROCESS_INFORMATION pi;
 512         STARTUPINFOW si;
 513
 514         memset( &si, 0, sizeof si );
 515         si.cb = sizeof si;
 516         if (CreateProcessW( NULL, winebootW, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi ))
 517         {
 518             CloseHandle( pi.hProcess );
 519             CloseHandle( pi.hThread );
 520         }
 521         else
 522             MESSAGE("wine: Failed to start wineboot\n");
 523     }
 524
 525     if (result) ExitProcess(0);
 526     return TRUE;
 527 }