diff -Naur qt-x11-opensource-src-4.0.1-orig/src/gui/widgets/qmenubar.cpp qt-x11-opensource-src-4.0.1/src/gui/widgets/qmenubar.cpp

--- qt-x11-opensource-src-4.0.1-orig/src/gui/widgets/qmenubar.cpp	2005-08-16 12:41:11 +0400

+++ qt-x11-opensource-src-4.0.1/src/gui/widgets/qmenubar.cpp	2005-10-22 21:29:38 +0400

@@ -1137,6 +1137,24 @@

         }

     }

+    // Sergey A. Sukiyazov <sukiyazov@mail.ru>

+    // Make behavior like Gtk2 applications. Activate first menu in menubar (if present)

+    // by pressing F10 or Super_L/R (Win_L/R)

+    if(event->type()==QEvent::KeyRelease) {

+        QKeyEvent *kev = static_cast<QKeyEvent*>(event);

+

+        if(kev->key() == Qt::Key_F10) {

+            QAction *act = d->actionList.at(0);

+

+            if (act) {

+                d->setCurrentAction(act);

+                if(act->menu()) {

+                    d->popupAction(act, true);

+                }

+            }

+        }

+    }

+

     return false;

 }