Index: /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMachineView.cpp
===================================================================
--- /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMachineView.cpp	(revision 29824)
+++ /trunk/src/VBox/Frontends/VirtualBox/src/runtime/UIMachineView.cpp	(revision 29825)
@@ -2507,7 +2507,7 @@
 #elif defined(Q_WS_X11)
         if (fCapture)
-            XGrabKey(QX11Info::display(), AnyKey, AnyModifier, window()->winId(), False, GrabModeAsync, GrabModeAsync);
+            XGrabKey(QX11Info::display(), AnyKey, AnyModifier, winId(), False, GrabModeAsync, GrabModeAsync);
         else
-            XUngrabKey(QX11Info::display(), AnyKey, AnyModifier, window()->winId());
+            XUngrabKey(QX11Info::display(), AnyKey, AnyModifier, winId());
 #elif defined(Q_WS_MAC)
     if (fCapture)