def enable(self, BOOL):
        Tool.enable(self, BOOL)  # call base-class function

        self.frame_trigger.Active.value = self.enable_flag  # enable/disable frame callback
 def enable(self, BOOL):
     Tool.enable(self, BOOL) # call base-class function
 
     self.frame_trigger.Active.value = self.enable_flag # enable/disable frame callback