public DeviceManager()
        {
            cameraManager = new Avt.GigEVision();

            cameraManager.CameraConnected    += new CameraConnectionHandler(CameraManagerCameraConnected);
            cameraManager.CameraDisconnected += new CameraConnectionHandler(CameraManagerCameraDisconnected);
        }
	    public DeviceManager() {
			cameraManager = new Avt.GigEVision();

			cameraManager.CameraConnected +=new CameraConnectionHandler(CameraManagerCameraConnected);
			cameraManager.CameraDisconnected += new CameraConnectionHandler(CameraManagerCameraDisconnected);
		}