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Integrate image scanning within a C# application: Part VI

By Bechir Bejaoui on Nov 07, 2008
In this tutorial, I will show a very simple trick of how to integrate the functionality of scanning your documentation with a numeric scanner in your C# application.


You have to know that this kind of operation is only leveraged within windows XP environment, moreover, the WIA API is not automatically delivered with Windows; therefore, it must be downloaded from this link.

First, install the WIA API by extracting the content of the zipped file then by copying and pasting the wiaaut.dll assembly to C:\Windows\System32 and finally by registering the assembly using the regsvc32.exe

Figure 1.

Now, include the WIA library within your project by adding a reference to it :

Figure 2.

Add a new class to your project and name it Scanner:

using System;
using WIA;

namespace ScanImage
    public class Scanner
        Device oDevice;
        Item oItem;
        CommonDialogClass dlg;
        public Scanner()
         dlg = new CommonDialogClass();
         oDevice = dlg.ShowSelectDevice(WiaDeviceType.ScannerDeviceType, true, false);
        public void Scann()

In order to consume the services of this very simple class add a button and a picture box to your form as your project is Windows form one, the form should looks like this bellow:

Figure 3.

Do implement the button1_click as follow:

private void button1_Click(object sender, EventArgs e)
    Scanner oScanner = new Scanner();
    button1.Text = "Image scanned";
    OpenFileDialog dlg = new OpenFileDialog();
    if (dlg.ShowDialog() == DialogResult.OK)
       pictureBox1.Image = Image.FromFile(dlg.FileName);

Now run the application and observe:

Figure 4.

Click OK

Figure 5.

Then the below windows appears :

Figure 6.

Choose the colored photo, and then click next:

Figure 7.

In the above window, select JPG then click next

Figure 8 .

As showed above, the scanning process will be lunched as normally, click next then finish and the paper will be scanned as bellow:

Figure 9

You can browse to the emplacement of the given scanned image and display it using the picture box.

Figure 10

That's it

God Dotneting !!!

Bechir Bejaoui
Bechir Bejaoui

The author holds a master degree in NTIC specialized  in software developement delivered by the high school of communication SUPCOM, he also holds a bachelor degree in finance delivered by  the  economic s... Read more



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