+ elif wiiuse.is_just_pressed(wm, wiiuse.button['+']) :
+ self.synth.inc_gain()
+ elif wiiuse.is_just_pressed(wm, wiiuse.button['-']) :
+ self.synth.dec_gain()
+
+ elif self.screen in (SCREEN_HOME, SCREEN_INSTRUMENTS) :
+ pygame_wiimouse._full_mouse_event_cb(wt, id, wmp)