diff -Naur qt-x11-opensource-src-4.5.0-beta1-orig/src/qt3support/widgets/q3mainwindow.cpp qt-x11-opensource-src-4.5.0-beta1/src/qt3support/widgets/q3mainwindow.cpp
--- qt-x11-opensource-src-4.5.0-beta1-orig/src/qt3support/widgets/q3mainwindow.cpp	2008-12-17 20:16:42.000000000 +0300
+++ qt-x11-opensource-src-4.5.0-beta1/src/qt3support/widgets/q3mainwindow.cpp	2009-01-03 18:01:28.000000000 +0300
@@ -702,6 +702,9 @@
     d->rightDock = new Q3DockArea(Qt::Vertical, Q3DockArea::Reverse, this, "qt_right_dock");
     d->rightDock->installEventFilter(this);
     d->hideDock = new QHideDock(this);
+#ifndef QT_NO_MENUBAR
+    createMenuBarAction();
+#endif // QT_NO_MENUBAR
 }
 
 
@@ -2414,6 +2417,33 @@
 
 QT_END_NAMESPACE
 
+#ifndef QT_NO_MENUBAR
+void Q3MainWindow::createMenuBarAction()
+{
+    QList<QKeySequence> vShortcuts;
+    vShortcuts.append(QKeySequence(Qt::SHIFT | Qt::Key_F10));
+    vShortcuts.append(QKeySequence(Qt::CTRL | Qt::Key_Super_L));
+    vShortcuts.append(QKeySequence(Qt::CTRL | Qt::Key_Super_R));
+    
+    QAction *vpAction = new QAction(this);
+    vpAction->setShortcuts(vShortcuts);
+    connect(vpAction, SIGNAL(triggered()), this, SLOT(activateMenuBar()));
+    addAction(vpAction);
+}
+
+void Q3MainWindow::activateMenuBar()
+{
+    QMenuBar *vpMenuBar = menuBar();
+    if(!vpMenuBar) return;
+    if(vpMenuBar->actions().count()<=0) return;
+    
+    QAction *vpAction = vpMenuBar->actions().at(0);
+    if(!vpAction) return;
+    vpMenuBar->setActiveAction(vpAction);
+}
+#endif // QT_NO_MENUBAR
+
+
 #include "q3mainwindow.moc"
 
 #endif
diff -Naur qt-x11-opensource-src-4.5.0-beta1-orig/src/qt3support/widgets/q3mainwindow.h qt-x11-opensource-src-4.5.0-beta1/src/qt3support/widgets/q3mainwindow.h
--- qt-x11-opensource-src-4.5.0-beta1-orig/src/qt3support/widgets/q3mainwindow.h	2008-12-17 20:16:42.000000000 +0300
+++ qt-x11-opensource-src-4.5.0-beta1/src/qt3support/widgets/q3mainwindow.h	2009-01-03 18:01:28.000000000 +0300
@@ -180,6 +180,14 @@
     void childEvent(QChildEvent *);
     bool event(QEvent *);
 
+#ifndef QT_NO_MENUBAR
+protected:
+    void createMenuBarAction();
+
+protected Q_SLOTS:
+    void activateMenuBar();
+#endif
+
 private Q_SLOTS:
     void slotPlaceChanged();
     void doLineUp() { lineUpDockWindows(true); }