🚀 go-pugleaf

I have an novice quesiton about attaching Sensors to objects - specifically
I have a PullDown menu and I want to branch to different methods depending
on which MenuItem the UpKey event occured in - however when I create a Sensor
in the PullDown menu object the Sensor does note seem to be 'listening' to
the PDM - 

here is the PDM code (brief):

PulldownMenu* SimulationWindow::FileMenu()
{
 PulldownMenu* file_menu = new PulldownMenu("File");

 MenuItem* save_item = new MenuItem(new Message("Save"));
 MenuItem* saveAs_item = new MenuItem(new Message("Save As..."));
 MenuItem* quit_item = new MenuItem(new Message("Quit"));

 file_menu->Include(save_item);
 file_menu->Include(saveAs_item);
 file_menu->Include(quit_item);

 input = new Sensor;
 input->Catch(UpEvent);
 return file_menu;
}

any comments would be appreciated.

Will Robinson
Digital - ASDS