Dmitry Timoshkov : winex11.drv: Avoid a crash if not in a desktop mode.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 2fdbeefc9693fe4af2ec9b9581311442f141633e
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=2fdbeefc9693fe4af2ec9b9581...

Author: Dmitry Timoshkov <dmitry(a)codeweavers.com>
Date:   Thu May 28 15:00:10 2009 +0900

winex11.drv: Avoid a crash if not in a desktop mode.

---

 dlls/winex11.drv/desktop.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/dlls/winex11.drv/desktop.c b/dlls/winex11.drv/desktop.c
index 5b96e33..a2bc004 100644
--- a/dlls/winex11.drv/desktop.c
+++ b/dlls/winex11.drv/desktop.c
@@ -137,6 +137,8 @@ Window CDECL X11DRV_create_desktop( UINT width, UINT height )
     Window win;
     Display *display = thread_init_display();
 
+    TRACE( "%u x %u\n", width, height );
+
     wine_tsx11_lock();
 
     /* Create window */
@@ -206,7 +208,7 @@ static void update_desktop_fullscreen( unsigned int width, unsigned int height)
     Display *display = thread_display();
     XEvent xev;
 
-    wine_tsx11_lock();
+    if (!display || root_window != DefaultRootWindow( display )) return;
 
     xev.xclient.type = ClientMessage;
     xev.xclient.window = root_window;
@@ -225,9 +227,9 @@ static void update_desktop_fullscreen( unsigned int width, unsigned int height)
 
     TRACE("action=%li\n", xev.xclient.data.l[0]);
 
+    wine_tsx11_lock();
     XSendEvent( display, DefaultRootWindow(display), False,
                 SubstructureRedirectMask | SubstructureNotifyMask, &xev );
-
     wine_tsx11_unlock();
 }