what is the barcode image for number(0,1,2,3,4,5,6,7,8,9)

If you downloaded the fonts - here's the code -add button,textbox and picturebox to form

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Text;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace BarcodeGen
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{

}

private Bitmap CreateBarcode(string data)
{
Bitmap barcode = new Bitmap(1, 1);
Font threeOfNine = new Font("Free 3 of 9", 60, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
Graphics graphics = Graphics.FromImage(barcode);
SizeF dataSize = graphics.MeasureString(data, threeOfNine);
barcode = new Bitmap(barcode,dataSize.ToSize());
graphics = Graphics.FromImage(barcode);
graphics.Clear(Color.White);
graphics.TextRenderingHint = TextRenderingHint.SingleBitPerPixel;
graphics.DrawString(data,threeOfNine,new SolidBrush(Color.Black),0,0);
graphics.Flush();
threeOfNine.Dispose();
graphics.Dispose();
return barcode;

}

private void button1_Click(object sender, EventArgs e)
{
pictureBox1.Image = CreateBarcode(textBox1.Text);
}
}
}

Look here
http://www.techrepublic.com/blog/howdoi/how-do-i-generate-barcodes-using-c/173