dlls/user32/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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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
  29 #include "controls.h"
  30 #include "user_private.h"
  31 #include "win.h"
  32 #include "wine/unicode.h"
  33 #include "wine/debug.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(graphics);
  36
  37 #define DESKTOP_ALL_ACCESS 0x01ff
  38
  39 HMODULE user32_module = 0;
  40
  41 static SYSLEVEL USER_SysLevel;
  42 static CRITICAL_SECTION_DEBUG critsect_debug =
  43 {
  44     0, 0, &USER_SysLevel.crst,
  45     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  46       0, 0, { (DWORD_PTR)(__FILE__ ": USER_SysLevel") }
  47 };
  48 static SYSLEVEL USER_SysLevel = { { &critsect_debug, -1, 0, 0, 0, 0 }, 2 };
  49
  50 static HPALETTE (WINAPI *pfnGDISelectPalette)( HDC hdc, HPALETTE hpal, WORD bkgnd );
  51 static UINT (WINAPI *pfnGDIRealizePalette)( HDC hdc );
  52 static HPALETTE hPrimaryPalette;
  53
  54 static DWORD exiting_thread_id;
  55
  56 extern void WDML_NotifyThreadDetach(void);
  57
  58
  59 /***********************************************************************
  60  *           USER_Lock
  61  */
  62 void USER_Lock(void)
  63 {
  64     _EnterSysLevel( &USER_SysLevel );
  65 }
  66
  67
  68 /***********************************************************************
  69  *           USER_Unlock
  70  */
  71 void USER_Unlock(void)
  72 {
  73     _LeaveSysLevel( &USER_SysLevel );
  74 }
  75
  76
  77 /***********************************************************************
  78  *           USER_CheckNotLock
  79  *
  80  * Make sure that we don't hold the user lock.
  81  */
  82 void USER_CheckNotLock(void)
  83 {
  84     _CheckNotSysLevel( &USER_SysLevel );
  85 }
  86
  87
  88 /***********************************************************************
  89  *              UserSelectPalette (Not a Windows API)
  90  */
  91 static HPALETTE WINAPI UserSelectPalette( HDC hDC, HPALETTE hPal, BOOL bForceBackground )
  92 {
  93     WORD wBkgPalette = 1;
  94
  95     if (!bForceBackground && (hPal != GetStockObject(DEFAULT_PALETTE)))
  96     {
  97         HWND hwnd = WindowFromDC( hDC );
  98         if (hwnd)
  99         {
 100             HWND hForeground = GetForegroundWindow();
 101             /* set primary palette if it's related to current active */
 102             if (hForeground == hwnd || IsChild(hForeground,hwnd))
 103             {
 104                 wBkgPalette = 0;
 105                 hPrimaryPalette = hPal;
 106             }
 107         }
 108     }
 109     return pfnGDISelectPalette( hDC, hPal, wBkgPalette);
 110 }
 111
 112
 113 /***********************************************************************
 114  *              UserRealizePalette (USER32.@)
 115  */
 116 UINT WINAPI UserRealizePalette( HDC hDC )
 117 {
 118     UINT realized = pfnGDIRealizePalette( hDC );
 119
 120     /* do not send anything if no colors were changed */
 121     if (realized && GetCurrentObject( hDC, OBJ_PAL ) == hPrimaryPalette)
 122     {
 123         /* send palette change notification */
 124         HWND hWnd = WindowFromDC( hDC );
 125         if (hWnd) SendMessageTimeoutW( HWND_BROADCAST, WM_PALETTECHANGED, (WPARAM)hWnd, 0,
 126                                        SMTO_ABORTIFHUNG, 2000, NULL );
 127     }
 128     return realized;
 129 }
 130
 131
 132 /***********************************************************************
 133  *           palette_init
 134  *
 135  * Patch the function pointers in GDI for SelectPalette and RealizePalette
 136  */
 137 static void palette_init(void)
 138 {
 139     void **ptr;
 140     HMODULE module = GetModuleHandleA( "gdi32" );
 141     if (!module)
 142     {
 143         ERR( "cannot get GDI32 handle\n" );
 144         return;
 145     }
 146     if ((ptr = (void**)GetProcAddress( module, "pfnSelectPalette" )))
 147         pfnGDISelectPalette = InterlockedExchangePointer( ptr, UserSelectPalette );
 148     else ERR( "cannot find pfnSelectPalette in GDI32\n" );
 149     if ((ptr = (void**)GetProcAddress( module, "pfnRealizePalette" )))
 150         pfnGDIRealizePalette = InterlockedExchangePointer( ptr, UserRealizePalette );
 151     else ERR( "cannot find pfnRealizePalette in GDI32\n" );
 152 }
 153
 154
 155 /***********************************************************************
 156  *           get_default_desktop
 157  *
 158  * Get the name of the desktop to use for this app if not specified explicitly.
 159  */
 160 static const WCHAR *get_default_desktop(void)
 161 {
 162     static const WCHAR defaultW[] = {'D','e','f','a','u','l','t',0};
 163     static const WCHAR desktopW[] = {'D','e','s','k','t','o','p',0};
 164     static const WCHAR explorerW[] = {'\\','E','x','p','l','o','r','e','r',0};
 165     static const WCHAR app_defaultsW[] = {'S','o','f','t','w','a','r','e','\\',
 166                                           'W','i','n','e','\\',
 167                                           'A','p','p','D','e','f','a','u','l','t','s',0};
 168     static WCHAR buffer[MAX_PATH + sizeof(explorerW)/sizeof(WCHAR)];
 169     WCHAR *p, *appname = buffer;
 170     const WCHAR *ret = defaultW;
 171     DWORD len;
 172     HKEY tmpkey, appkey;
 173
 174     len = (GetModuleFileNameW( 0, buffer, MAX_PATH ));
 175     if (!len || len >= MAX_PATH) return ret;
 176     if ((p = strrchrW( appname, '/' ))) appname = p + 1;
 177     if ((p = strrchrW( appname, '\\' ))) appname = p + 1;
 178     p = appname + strlenW(appname);
 179     strcpyW( p, explorerW );
 180
 181     /* @@ Wine registry key: HKCU\Software\Wine\AppDefaults\app.exe\Explorer */
 182     if (!RegOpenKeyW( HKEY_CURRENT_USER, app_defaultsW, &tmpkey ))
 183     {
 184         if (RegOpenKeyW( tmpkey, appname, &appkey )) appkey = 0;
 185         RegCloseKey( tmpkey );
 186         if (appkey)
 187         {
 188             len = sizeof(buffer);
 189             if (!RegQueryValueExW( appkey, desktopW, 0, NULL, (LPBYTE)buffer, &len )) ret = buffer;
 190             RegCloseKey( appkey );
 191             if (ret && strcmpiW( ret, defaultW )) return ret;
 192             ret = defaultW;
 193         }
 194     }
 195
 196     memcpy( buffer, app_defaultsW, 13 * sizeof(WCHAR) );  /* copy only software\\wine */
 197     strcpyW( buffer + 13, explorerW );
 198
 199     /* @@ Wine registry key: HKCU\Software\Wine\Explorer */
 200     if (!RegOpenKeyW( HKEY_CURRENT_USER, buffer, &appkey ))
 201     {
 202         len = sizeof(buffer);
 203         if (!RegQueryValueExW( appkey, desktopW, 0, NULL, (LPBYTE)buffer, &len )) ret = buffer;
 204         RegCloseKey( appkey );
 205     }
 206     return ret;
 207 }
 208
 209
 210 /***********************************************************************
 211  *           winstation_init
 212  *
 213  * Connect to the process window station and desktop.
 214  */
 215 static void winstation_init(void)
 216 {
 217     static const WCHAR WinSta0[] = {'W','i','n','S','t','a','0',0};
 218
 219     STARTUPINFOW info;
 220     WCHAR *winstation = NULL, *desktop = NULL, *buffer = NULL;
 221     HANDLE handle;
 222
 223     GetStartupInfoW( &info );
 224     if (info.lpDesktop && *info.lpDesktop)
 225     {
 226         buffer = HeapAlloc( GetProcessHeap(), 0, (strlenW(info.lpDesktop) + 1) * sizeof(WCHAR) );
 227         strcpyW( buffer, info.lpDesktop );
 228         if ((desktop = strchrW( buffer, '\\' )))
 229         {
 230             *desktop++ = 0;
 231             winstation = buffer;
 232         }
 233         else desktop = buffer;
 234     }
 235
 236     /* set winstation if explicitly specified, or if we don't have one yet */
 237     if (buffer || !GetProcessWindowStation())
 238     {
 239         handle = CreateWindowStationW( winstation ? winstation : WinSta0, 0, WINSTA_ALL_ACCESS, NULL );
 240         if (handle)
 241         {
 242             SetProcessWindowStation( handle );
 243             /* only WinSta0 is visible */
 244             if (!winstation || !strcmpiW( winstation, WinSta0 ))
 245             {
 246                 USEROBJECTFLAGS flags;
 247                 flags.fInherit  = FALSE;
 248                 flags.fReserved = FALSE;
 249                 flags.dwFlags   = WSF_VISIBLE;
 250                 SetUserObjectInformationW( handle, UOI_FLAGS, &flags, sizeof(flags) );
 251             }
 252         }
 253     }
 254     if (buffer || !GetThreadDesktop( GetCurrentThreadId() ))
 255     {
 256         handle = CreateDesktopW( desktop ? desktop : get_default_desktop(),
 257                                  NULL, NULL, 0, DESKTOP_ALL_ACCESS, NULL );
 258         if (handle) SetThreadDesktop( handle );
 259     }
 260     HeapFree( GetProcessHeap(), 0, buffer );
 261 }
 262
 263
 264 /***********************************************************************
 265  *           USER initialisation routine
 266  */
 267 static BOOL process_attach(void)
 268 {
 269     LoadLibrary16( "user.exe" );
 270
 271     /* some Win9x dlls expect keyboard to be loaded */
 272     if (GetVersion() & 0x80000000) LoadLibrary16( "keyboard.drv" );
 273
 274     winstation_init();
 275
 276     /* Initialize system colors and metrics */
 277     SYSPARAMS_Init();
 278
 279     /* Setup palette function pointers */
 280     palette_init();
 281
 282     /* Initialize built-in window classes */
 283     CLASS_RegisterBuiltinClasses();
 284
 285     /* Initialize message spying */
 286     if (!SPY_Init()) return FALSE;
 287
 288     return TRUE;
 289 }
 290
 291
 292 /**********************************************************************
 293  *           USER_IsExitingThread
 294  */
 295 BOOL USER_IsExitingThread( DWORD tid )
 296 {
 297     return (tid == exiting_thread_id);
 298 }
 299
 300
 301 /**********************************************************************
 302  *           thread_detach
 303  */
 304 static void thread_detach(void)
 305 {
 306     struct user_thread_info *thread_info = get_user_thread_info();
 307
 308     exiting_thread_id = GetCurrentThreadId();
 309
 310     WDML_NotifyThreadDetach();
 311
 312     if (thread_info->top_window) WIN_DestroyThreadWindows( thread_info->top_window );
 313     if (thread_info->msg_window) WIN_DestroyThreadWindows( thread_info->msg_window );
 314     CloseHandle( thread_info->server_queue );
 315     HeapFree( GetProcessHeap(), 0, thread_info->wmchar_data );
 316
 317     exiting_thread_id = 0;
 318 }
 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_THREAD_DETACH:
 336         thread_detach();
 337         break;
 338     case DLL_PROCESS_DETACH:
 339         USER_unload_driver();
 340         break;
 341     }
 342     return ret;
 343 }
 344
 345
 346 /***********************************************************************
 347  *              ExitWindowsEx (USER32.@)
 348  */
 349 BOOL WINAPI ExitWindowsEx( UINT flags, DWORD reason )
 350 {
 351     static const WCHAR winebootW[]    = { '\\','w','i','n','e','b','o','o','t','.','e','x','e',0 };
 352     static const WCHAR killW[]        = { ' ','-','-','k','i','l','l',0 };
 353     static const WCHAR end_sessionW[] = { ' ','-','-','e','n','d','-','s','e','s','s','i','o','n',0 };
 354     static const WCHAR forceW[]       = { ' ','-','-','f','o','r','c','e',0 };
 355     static const WCHAR shutdownW[]    = { ' ','-','-','s','h','u','t','d','o','w','n',0 };
 356
 357     WCHAR cmdline[MAX_PATH + 64];
 358     PROCESS_INFORMATION pi;
 359     STARTUPINFOW si;
 360
 361     GetSystemDirectoryW( cmdline, MAX_PATH );
 362     lstrcatW( cmdline, winebootW );
 363
 364     if (flags & EWX_FORCE) lstrcatW( cmdline, killW );
 365     else
 366     {
 367         lstrcatW( cmdline, end_sessionW );
 368         if (flags & EWX_FORCEIFHUNG) lstrcatW( cmdline, forceW );
 369     }
 370     if (!(flags & EWX_REBOOT)) lstrcatW( cmdline, shutdownW );
 371
 372     memset( &si, 0, sizeof si );
 373     si.cb = sizeof si;
 374     if (!CreateProcessW( NULL, cmdline, NULL, NULL, FALSE, DETACHED_PROCESS, NULL, NULL, &si, &pi ))
 375     {
 376         ERR( "Failed to run %s\n", debugstr_w(cmdline) );
 377         return FALSE;
 378     }
 379     CloseHandle( pi.hProcess );
 380     CloseHandle( pi.hThread );
 381     return TRUE;
 382 }
 383
 384 /***********************************************************************
 385  *              LockWorkStation (USER32.@)
 386  */
 387 BOOL WINAPI LockWorkStation(void)
 388 {
 389     TRACE(": stub\n");
 390     SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
 391     return FALSE;
 392 }
 393
 394 /***********************************************************************
 395  *              RegisterServicesProcess (USER32.@)
 396  */
 397 int WINAPI RegisterServicesProcess(DWORD ServicesProcessId)
 398 {
 399     FIXME("(0x%x): stub\n", ServicesProcessId);
 400     return 0;
 401 }