- If given the EWX_FORCE flag, ExitWindowsEx() should not send the

WM_{QUERY}ENDSESSION messages.
- Add support for EWX_FORCEIFHUNG.
- ExitWindowsEx() should return true if it succeeds, even if the user
  cancels the shutdown.
- Don't crash if there are no windows.

windows/user.c

@@ -409,13 +409,15 @@ static BOOL USER_StartRebootProcess(void)
 BOOL WINAPI ExitWindowsEx( UINT flags, DWORD reserved )
 {
     int i;
-    BOOL result;
+    BOOL result = FALSE;
     HWND *list, *phwnd;
 
     /* We have to build a list of all windows first, as in EnumWindows */
+    TRACE("(%x,%lx)\n", flags, reserved);
 
-    if (!(list = WIN_ListChildren( GetDesktopWindow() ))) return FALSE;
-
+    list = WIN_ListChildren( GetDesktopWindow() );
+    if (list)
+    {
         /* Send a WM_QUERYENDSESSION message to every window */
 
         for (i = 0; list[i]; i++)
@@ -435,6 +437,10 @@ BOOL WINAPI ExitWindowsEx( UINT flags, DWORD reserved )
         }
         HeapFree( GetProcessHeap(), 0, list );
 
+        if ( !(result || (flags & EWX_FORCE) ))
+            return FALSE;
+    }
+
     /* USER_DoShutdown will kill all processes except the current process */
     USER_DoShutdown();