Fixed sending events by submenus.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@28870 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/univ/menu.cpp

@@ -2411,6 +2411,8 @@ void wxMenuBar::PopupCurrentMenu(bool selectFirst)
             // item, not to the right of it
             wxRect rectItem = GetItemRect(m_current);
 
+            m_menuShown->SetInvokingWindow(m_frameLast);
+
             m_menuShown->Popup(ClientToScreen(rectItem.GetPosition()),
                                wxSize(0, rectItem.GetHeight()),
                                selectFirst);