+#if GTK_CHECK_VERSION(1, 2, 0) && wxUSE_ACCEL
+    static wxString GetHotKey( const wxMenuItem& item );
+#endif
+
+//-----------------------------------------------------------------------------
+// substitute for missing GtkPixmapMenuItem
+//-----------------------------------------------------------------------------
+
+// FIXME: I can't make this compile with GTK+ 2.0, disabling for now (VZ)
+#ifndef __WXGTK20__
+    #define USE_MENU_BITMAPS
+#endif
+
+#ifdef USE_MENU_BITMAPS
+
+#define GTK_TYPE_PIXMAP_MENU_ITEM            (gtk_pixmap_menu_item_get_type ())
+#define GTK_PIXMAP_MENU_ITEM(obj)            (GTK_CHECK_CAST ((obj), GTK_TYPE_PIXMAP_MENU_ITEM, GtkPixmapMenuItem))
+#define GTK_PIXMAP_MENU_ITEM_CLASS(klass)    (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_PIXMAP_MENU_ITEM, GtkPixmapMenuItemClass))
+#define GTK_IS_PIXMAP_MENU_ITEM(obj)         (GTK_CHECK_TYPE ((obj), GTK_TYPE_PIXMAP_MENU_ITEM))
+#define GTK_IS_PIXMAP_MENU_ITEM_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_PIXMAP_MENU_ITEM))
+//#define GTK_PIXMAP_MENU_ITEM_GET_CLASS(obj)  (GTK_CHECK_GET_CLASS ((obj), GTK_TYPE_PIXMAP_MENU_ITEM))
+#define GTK_PIXMAP_MENU_ITEM_GET_CLASS(obj)  (GTK_PIXMAP_MENU_ITEM_CLASS( GTK_OBJECT_GET_CLASS(obj)))
+
+#ifndef GTK_MENU_ITEM_GET_CLASS
+#define GTK_MENU_ITEM_GET_CLASS(obj) (GTK_MENU_ITEM_CLASS( GTK_OBJECT_GET_CLASS(obj)))
+#endif
+
+typedef struct _GtkPixmapMenuItem       GtkPixmapMenuItem;
+typedef struct _GtkPixmapMenuItemClass  GtkPixmapMenuItemClass;
+
+struct _GtkPixmapMenuItem
+{
+    GtkMenuItem menu_item;
+
+    GtkWidget *pixmap;
+};
+
+struct _GtkPixmapMenuItemClass
+{
+    GtkMenuItemClass parent_class;
+
+    guint orig_toggle_size;
+    guint have_pixmap_count;
+};
+
+
+GtkType           gtk_pixmap_menu_item_get_type       (void);
+GtkWidget* gtk_pixmap_menu_item_new            (void);
+void       gtk_pixmap_menu_item_set_pixmap     (GtkPixmapMenuItem *menu_item,
+                                                                    GtkWidget *pixmap);
+
+#endif // USE_MENU_BITMAPS
+
+//-----------------------------------------------------------------------------
+// idle system
+//-----------------------------------------------------------------------------
+
+static wxString wxReplaceUnderscore( const wxString& title )
+{
+    const wxChar *pc;
+
+    /* GTK 1.2 wants to have "_" instead of "&" for accelerators */
+    wxString str;
+    pc = title;
+    while (*pc != wxT('\0'))
+    {
+        if ((*pc == wxT('&')) && (*(pc+1) == wxT('&')))
+        {
+            // "&" is doubled to indicate "&" instead of accelerator
+            ++pc;
+            str << wxT('&');
+        }
+        else if (*pc == wxT('&'))
+        {
+#if GTK_CHECK_VERSION(1, 2, 0)
+            str << wxT('_');
+#endif
+        }
+#if GTK_CHECK_VERSION(2, 0, 0)
+        else if (*pc == wxT('/'))
+        {
+            str << wxT("\\/");
+        }
+        else if (*pc == wxT('\\'))
+        {
+            str << wxT("\\\\");
+        }
+#elif GTK_CHECK_VERSION(1, 2, 0)
+        else if (*pc == wxT('/'))
+        {
+            str << wxT('\\');
+        }
+#endif
+        else
+        {
+#ifdef __WXGTK12__
+            if ( *pc == wxT('_') )
+            {
+                // underscores must be doubled to prevent them from being
+                // interpreted as accelerator character prefix by GTK
+                str << *pc;
+            }
+#endif // GTK+ 1.2
+
+            str << *pc;
+        }
+        ++pc;
+    }
+    return str;
+}
+
+//-----------------------------------------------------------------------------
+// activate message from GTK
+//-----------------------------------------------------------------------------
+
+static void gtk_menu_open_callback( GtkWidget *widget, wxMenu *menu )
+{
+    if (g_isIdle) wxapp_install_idle_handler();
+
+    wxMenuEvent event( wxEVT_MENU_OPEN, -1, menu );
+    event.SetEventObject( menu );
+
+    wxEvtHandler* handler = menu->GetEventHandler();
+    if (handler && handler->ProcessEvent(event))
+        return;
+
+    wxWindow *win = menu->GetInvokingWindow();
+    if (win) win->GetEventHandler()->ProcessEvent( event );
+}
+