content: sub main()
      showChannel()
  end sub
  
  sub showChannel()
      screen = CreateObject("roSGScreen")
      m.port = CreateObject("roMessagePort")
      screen.setMessagePort(m.port)
      
      scene = screen.CreateScene("MainScene")
      screen.show()
      
      while(true)
          msg = wait(0, m.port)
          msgType = type(msg)
          if msgType = "roSGScreenEvent"
              if msg.isScreenClosed() then return
          end if
          
          if scene.exit = true then
              screen.close()
          end if
      end while
  end sub