// "expose_event" of m_mainWidget
 //-----------------------------------------------------------------------------
 
+extern "C" {
 static void gtk_window_own_expose_callback( GtkWidget *widget, GdkEventExpose *gdk_event, wxFrame *win )
 {
     if (g_isIdle) wxapp_install_idle_handler();
         dc.DrawText( win->GetTitle(), 6, 3 );
     }
 }
+}
 
 //-----------------------------------------------------------------------------
 // "draw" of m_mainWidget
 //-----------------------------------------------------------------------------
 
 #ifndef __WXGTK20__
+extern "C" {
 static void gtk_window_own_draw_callback( GtkWidget *widget, GdkRectangle *WXUNUSED(rect), wxFrame *win )
 {
     if (g_isIdle) wxapp_install_idle_handler();
         dc.DrawText( win->GetTitle(), 6, 3 );
     }
 }
+}
 #endif
 
 //-----------------------------------------------------------------------------
 // "button_press_event" of m_mainWidget
 //-----------------------------------------------------------------------------
 
+extern "C" {
 static gint gtk_window_button_press_callback( GtkWidget *widget, GdkEventButton *gdk_event, wxMiniFrame *win )
 {
     if (g_isIdle) wxapp_install_idle_handler();
 
     return TRUE;
 }
+}
 
 //-----------------------------------------------------------------------------
 // "button_release_event" of m_mainWidget
 //-----------------------------------------------------------------------------
 
+extern "C" {
 static gint gtk_window_button_release_callback( GtkWidget *widget, GdkEventButton *gdk_event, wxMiniFrame *win )
 {
     if (g_isIdle) wxapp_install_idle_handler();
 
     return TRUE;
 }
+}
 
 //-----------------------------------------------------------------------------
 // "motion_notify_event" of m_mainWidget
 //-----------------------------------------------------------------------------
 
+extern "C" {
 static gint gtk_window_motion_notify_callback( GtkWidget *widget, GdkEventMotion *gdk_event, wxMiniFrame *win )
 {
     if (g_isIdle) wxapp_install_idle_handler();
 
     return TRUE;
 }
+}
 
 //-----------------------------------------------------------------------------
 // "clicked" of X system button
 //-----------------------------------------------------------------------------
 
+extern "C" {
 static void gtk_button_clicked_callback( GtkWidget *WXUNUSED(widget), wxMiniFrame *mf )
 {
     if (g_isIdle) wxapp_install_idle_handler();
 
     mf->Close();
 }
+}
 
 //-----------------------------------------------------------------------------
 // wxMiniFrame
     return TRUE;
 }
 
+void wxMiniFrame::SetTitle( const wxString &title )
+{
+    wxFrame::SetTitle( title );
+    
+#ifdef __WXGTK20__
+    gdk_window_invalidate_rect( GTK_PIZZA(m_mainWidget)->bin_window, NULL, true );
+#else
+    gtk_widget_draw( m_mainWidget, (GdkRectangle*) NULL );
+#endif
+}
+
 #endif