- track_canvas->signal_leave_notify_event().connect (sigc::mem_fun(*this, &Editor::left_track_canvas));
- track_canvas->signal_enter_notify_event().connect (sigc::mem_fun(*this, &Editor::entered_track_canvas));
+ track_canvas->signal_leave_notify_event().connect (sigc::mem_fun(*this, &Editor::left_track_canvas), false);
+ track_canvas->signal_enter_notify_event().connect (sigc::mem_fun(*this, &Editor::entered_track_canvas), false);