public RootController()
{
// initialize this agent
presentation = new RootPresentation();
abstraction = new RootAbstraction();
// initialize input agent
input = new InputController(this);
presentation.SetInputUI(input.GetUI());
// initialize output agent
output = new OutputController(this);
presentation.SetOutputUI(output.GetUI());
// show the window
presentation.RegisterOnClose((sender, e) => { Shutdown(); });
presentation.ShowUI();
}