protected void preInit(XCreateWindowParams params) { super.preInit(params); params.put( EVENT_MASK, XConstants.KeyPressMask | XConstants.KeyReleaseMask | XConstants.FocusChangeMask | XConstants.ButtonPressMask | XConstants.ButtonReleaseMask | XConstants.EnterWindowMask | XConstants.LeaveWindowMask | XConstants.PointerMotionMask | XConstants.ButtonMotionMask | XConstants.ExposureMask | XConstants.StructureNotifyMask | XConstants.SubstructureNotifyMask); }