how to receive weight from USB port in USB Library (C#)

 public Main()
 {
    InitializeComponent();
    //Initialize VID and PID TextBoxes
    VIDTextBox.Text = MyDeviceVID.ToString("X4");
    PIDTextBox.Text = MyDevicePID.ToString("X4");

    //USB Connection
    USBPort = new USBClass();
    USBDeviceProperties = new USBClass.DeviceProperties();
    USBPort.USBDeviceAttached += new USBClass.USBDeviceEventHandler(USBPort_USBDeviceAttached);
    USBPort.USBDeviceRemoved += new USBClass.USBDeviceEventHandler(USBPort_USBDeviceRemoved);
    USBPort.RegisterForDeviceChange(true, this);
    USBTryMyDeviceConnection();
    MyUSBDeviceConnected = false;
 }

#region USB
/// <summary>
/// Try to connect to the device.
/// </summary>
/// <returns>True if success, false otherwise</returns>
private bool USBTryMyDeviceConnection()
{
    if (USBClass.GetUSBDevice(uint.Parse(VIDTextBox.Text, System.Globalization.NumberStyles.AllowHexSpecifier), uint.Parse(PIDTextBox.Text, System.Globalization.NumberStyles.AllowHexSpecifier), ref USBDeviceProperties, SerialPortCheckBox.Checked))
    {
        //My Device is attached
        DeviceTypeTextBox.Text = USBDeviceProperties.DeviceType;
        FriendlyNameTextBox.Text = USBDeviceProperties.FriendlyName;
        DeviceDescriptionTextBox.Text = USBDeviceProperties.DeviceDescription;
        DeviceManufacturerTextBox.Text = USBDeviceProperties.DeviceManufacturer;
        DeviceClassTextBox.Text = USBDeviceProperties.DeviceClass;
        DeviceLocationTextBox.Text = USBDeviceProperties.DeviceLocation;
        DevicePathTextBox.Text = USBDeviceProperties.DevicePath;
        DevicePhysicalObjectNameTextBox.Text = USBDeviceProperties.DevicePhysicalObjectName;
        SerialPortTextBox.Text = USBDeviceProperties.COMPort;
        Connect();

        return true;
    }
    else
    {
        Disconnect();
        return false;
    }
}

private void USBPort_USBDeviceAttached(object sender, USBClass.USBDeviceEventArgs e)
{
    if (!MyUSBDeviceConnected)
    {
        if (USBTryMyDeviceConnection())
        {
            MyUSBDeviceConnected = true;
        }
    }
}

private void USBPort_USBDeviceRemoved(object sender, USBClass.USBDeviceEventArgs e)
{
    if (!USBClass.GetUSBDevice(MyDeviceVID, MyDevicePID, ref USBDeviceProperties, false))
    {
        //My Device is removed
        MyUSBDeviceConnected = false;
        Disconnect();
    }
}

protected override void WndProc(ref Message m)
{
    USBPort.ProcessWindowsMessage(ref m);

    base.WndProc(ref m);
}

private void Connect()
{
    //TO DO: Inset your connection code here
    MessageBox.Show("Connected!");
    ConnectionToolStripStatusLabel.Text = "Connected";
}

private void Disconnect()
{
    //TO DO: Insert your disconnection code here
    MessageBox.Show("Disconnected!");
    ConnectionToolStripStatusLabel.Text = "Disconnected";
    DeviceTypeTextBox.Text = String.Empty;
    FriendlyNameTextBox.Text = String.Empty;
    DeviceDescriptionTextBox.Text = String.Empty;
    DeviceManufacturerTextBox.Text = String.Empty;
    DeviceClassTextBox.Text = String.Empty;
    DeviceLocationTextBox.Text = String.Empty;
    DevicePathTextBox.Text = String.Empty;
    DevicePhysicalObjectNameTextBox.Text = String.Empty;
}
#endregion

private void VIDTextBox_Leave(object sender, EventArgs e)
{
    uint VID = 0;

    if (!uint.TryParse(VIDTextBox.Text, System.Globalization.NumberStyles.AllowHexSpecifier, new System.Globalization.CultureInfo("en-US"), out VID))
    {
        VIDTextBox.Focus();
        ErrorProvider.SetError(VIDTextBox, "VID is expected to be an hexadecimal number, allowed characters: 0 to 9, A to F");
    }
    else
    {
        ErrorProvider.SetError(VIDTextBox, "");
    }
}

private void PIDTextBox_Leave(object sender, EventArgs e)
{
    uint PID = 0;

    if (!uint.TryParse(PIDTextBox.Text, System.Globalization.NumberStyles.AllowHexSpecifier, new System.Globalization.CultureInfo("en-US"), out PID))
    {
        PIDTextBox.Focus();
        ErrorProvider.SetError(PIDTextBox, "PID is expected to be an hexadecimal number, allowed characters: 0 to 9, A to F");
    }
    else
    {
        ErrorProvider.SetError(PIDTextBox, "");
    }
}

private void UpdateButton_Click(object sender, EventArgs e)
{
    USBTryMyDeviceConnection();
}