USER32: ExitWindowsEx fixes

[Mike McCormack]

ChangeLog:
<fgouget at codeweavers.com>
* 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's no windows

<julliard at codeweavers.com>
* Use ExitProcess to terminate the process in ExitWindowsEx so that it
gets a chance to clean things up
-------------- next part --------------
Index: windows/user.c
===================================================================
RCS file: /home/wine/wine/windows/user.c,v
retrieving revision 1.105
diff -u -r1.105 user.c
--- windows/user.c	8 Dec 2004 18:06:14 -0000	1.105
+++ windows/user.c	3 Jan 2005 08:44:07 -0000
@@ -409,31 +409,37 @@
 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;
-
-    /* Send a WM_QUERYENDSESSION message to every window */
-
-    for (i = 0; list[i]; i++)
+    list = WIN_ListChildren( GetDesktopWindow() );
+    if (list)
     {
-        /* Make sure that the window still exists */
-        if (!IsWindow( list[i] )) continue;
-        if (!SendMessageW( list[i], WM_QUERYENDSESSION, 0, 0 )) break;
-    }
-    result = !list[i];
+        /* Send a WM_QUERYENDSESSION message to every window */
 
-    /* Now notify all windows that got a WM_QUERYENDSESSION of the result */
+        for (i = 0; list[i]; i++)
+        {
+            /* Make sure that the window still exists */
+            if (!IsWindow( list[i] )) continue;
+            if (!SendMessageW( list[i], WM_QUERYENDSESSION, 0, 0 )) break;
+        }
+        result = !list[i];
+
+        /* Now notify all windows that got a WM_QUERYENDSESSION of the result */
+
+        for (phwnd = list; i > 0; i--, phwnd++)
+        {
+            if (!IsWindow( *phwnd )) continue;
+            SendMessageW( *phwnd, WM_ENDSESSION, result, 0 );
+        }
+        HeapFree( GetProcessHeap(), 0, list );
 
-    for (phwnd = list; i > 0; i--, phwnd++)
-    {
-        if (!IsWindow( *phwnd )) continue;
-        SendMessageW( *phwnd, WM_ENDSESSION, result, 0 );
+        if ( !(result || (flags & EWX_FORCE) ))
+            return FALSE;
     }
-    HeapFree( GetProcessHeap(), 0, list );
 
     /* USER_DoShutdown will kill all processes except the current process */
     USER_DoShutdown();
@@ -441,7 +447,7 @@
     if (flags & EWX_REBOOT)
         USER_StartRebootProcess();
 
-    if (result) ExitKernel16();
+    if (result) ExitProcess(0);
     return TRUE;
 }