Important Update
These source code samples are listed and grouped by their programming language and functions they use. ByteScout BarCode Reader SDK was made to help with GUI example for barcode reading in C#. ByteScout BarCode Reader SDK is the barcode decoder with support for code 39, code 128, QR Code, Datamatrix, GS1, PDF417 and all other popular barcodes. Can read barcodes from images, pdf, tiff documents and live web camera. Supports noisy and damaged documents, can split and merge pdf and tiff documents based on barcodes. Can export barcode decoder results to XML, JSON, CSV and into custom data structures.
You will save a lot of time on writing and testing code as you may just take the code below and use it in your application. Follow the instruction from the scratch to work and copy and paste code for C# into your editor. You can use these C# sample examples in one or many applications.
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namespace GuiExample
{
partial class Form1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.label1 = new System.Windows.Forms.Label();
this.buttonBrowse = new System.Windows.Forms.Button();
this.pictureBoxBarcode = new System.Windows.Forms.PictureBox();
this.textBoxFileName = new System.Windows.Forms.TextBox();
this.textBoxResults = new System.Windows.Forms.TextBox();
this.label2 = new System.Windows.Forms.Label();
this.openFileDialog = new System.Windows.Forms.OpenFileDialog();
this.checkBoxAll1D = new System.Windows.Forms.CheckBox();
this.checkBoxAll2D = new System.Windows.Forms.CheckBox();
this.buttonSearch = new System.Windows.Forms.Button();
this.panel1 = new System.Windows.Forms.Panel();
((System.ComponentModel.ISupportInitialize)(this.pictureBoxBarcode)).BeginInit();
this.panel1.SuspendLayout();
this.SuspendLayout();
//
// label1
//
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(9, 9);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(120, 13);
this.label1.TabIndex = 0;
this.label1.Text = "Image or PDF file name:";
//
// buttonBrowse
//
this.buttonBrowse.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
this.buttonBrowse.Location = new System.Drawing.Point(792, 23);
this.buttonBrowse.Name = "buttonBrowse";
this.buttonBrowse.Size = new System.Drawing.Size(78, 23);
this.buttonBrowse.TabIndex = 0;
this.buttonBrowse.Text = "Browse...";
this.buttonBrowse.UseVisualStyleBackColor = true;
this.buttonBrowse.Click += new System.EventHandler(this.buttonBrowse_Click);
//
// pictureBoxBarcode
//
this.pictureBoxBarcode.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.pictureBoxBarcode.Location = new System.Drawing.Point(0, 0);
this.pictureBoxBarcode.Name = "pictureBoxBarcode";
this.pictureBoxBarcode.Size = new System.Drawing.Size(138, 113);
this.pictureBoxBarcode.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize;
this.pictureBoxBarcode.TabIndex = 2;
this.pictureBoxBarcode.TabStop = false;
//
// textBoxFileName
//
this.textBoxFileName.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.textBoxFileName.Location = new System.Drawing.Point(12, 25);
this.textBoxFileName.Name = "textBoxFileName";
this.textBoxFileName.ReadOnly = true;
this.textBoxFileName.Size = new System.Drawing.Size(774, 20);
this.textBoxFileName.TabIndex = 0;
//
// textBoxResults
//
this.textBoxResults.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.textBoxResults.Location = new System.Drawing.Point(12, 486);
this.textBoxResults.Multiline = true;
this.textBoxResults.Name = "textBoxResults";
this.textBoxResults.ScrollBars = System.Windows.Forms.ScrollBars.Both;
this.textBoxResults.Size = new System.Drawing.Size(858, 102);
this.textBoxResults.TabIndex = 4;
//
// label2
//
this.label2.AutoSize = true;
this.label2.Location = new System.Drawing.Point(12, 470);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(87, 13);
this.label2.TabIndex = 5;
this.label2.Text = "Found barcodes:";
//
// openFileDialog
//
this.openFileDialog.Filter = "Image and PDF files|*.bmp;*.gif;*.tif;*.tiff;*.png;*.jpg;*.jpeg;*.pdf|All files|*" +
".*";
//
// checkBoxAll1D
//
this.checkBoxAll1D.AutoSize = true;
this.checkBoxAll1D.Checked = true;
this.checkBoxAll1D.CheckState = System.Windows.Forms.CheckState.Checked;
this.checkBoxAll1D.Location = new System.Drawing.Point(12, 51);
this.checkBoxAll1D.Name = "checkBoxAll1D";
this.checkBoxAll1D.Size = new System.Drawing.Size(359, 17);
this.checkBoxAll1D.TabIndex = 1;
this.checkBoxAll1D.Text = "One-dimensional (linear) barcodes (Code39, Code128, GS1, EAN, etc.)";
this.checkBoxAll1D.UseVisualStyleBackColor = true;
//
// checkBoxAll2D
//
this.checkBoxAll2D.AutoSize = true;
this.checkBoxAll2D.Checked = true;
this.checkBoxAll2D.CheckState = System.Windows.Forms.CheckState.Checked;
this.checkBoxAll2D.Location = new System.Drawing.Point(12, 74);
this.checkBoxAll2D.Name = "checkBoxAll2D";
this.checkBoxAll2D.Size = new System.Drawing.Size(363, 17);
this.checkBoxAll2D.TabIndex = 2;
this.checkBoxAll2D.Text = "Two-dimensional barcodes (Aztec, PDF417, QR Code, Datamatrix, etc.)";
this.checkBoxAll2D.UseVisualStyleBackColor = true;
//
// buttonSearch
//
this.buttonSearch.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
this.buttonSearch.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(204)));
this.buttonSearch.Location = new System.Drawing.Point(742, 51);
this.buttonSearch.Name = "buttonSearch";
this.buttonSearch.Size = new System.Drawing.Size(128, 40);
this.buttonSearch.TabIndex = 3;
this.buttonSearch.Text = "Search Barcodes";
this.buttonSearch.UseVisualStyleBackColor = true;
this.buttonSearch.Click += new System.EventHandler(this.buttonSearchBarcodes_Click);
//
// panel1
//
this.panel1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.panel1.AutoScroll = true;
this.panel1.BackColor = System.Drawing.SystemColors.ControlDark;
this.panel1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.panel1.Controls.Add(this.pictureBoxBarcode);
this.panel1.Location = new System.Drawing.Point(12, 97);
this.panel1.Name = "panel1";
this.panel1.Size = new System.Drawing.Size(858, 370);
this.panel1.TabIndex = 9;
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(882, 600);
this.Controls.Add(this.panel1);
this.Controls.Add(this.buttonSearch);
this.Controls.Add(this.checkBoxAll2D);
this.Controls.Add(this.checkBoxAll1D);
this.Controls.Add(this.label2);
this.Controls.Add(this.textBoxResults);
this.Controls.Add(this.textBoxFileName);
this.Controls.Add(this.buttonBrowse);
this.Controls.Add(this.label1);
this.Name = "Form1";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "Barcode Reader";
((System.ComponentModel.ISupportInitialize)(this.pictureBoxBarcode)).EndInit();
this.panel1.ResumeLayout(false);
this.panel1.PerformLayout();
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Button buttonBrowse;
private System.Windows.Forms.PictureBox pictureBoxBarcode;
private System.Windows.Forms.TextBox textBoxFileName;
private System.Windows.Forms.TextBox textBoxResults;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.OpenFileDialog openFileDialog;
private System.Windows.Forms.CheckBox checkBoxAll1D;
private System.Windows.Forms.CheckBox checkBoxAll2D;
private System.Windows.Forms.Button buttonSearch;
private System.Windows.Forms.Panel panel1;
}
}
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using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
using Bytescout.BarCodeReader;
namespace GuiExample
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private String _fileName = "";
private void buttonBrowse_Click(object sender, EventArgs e)
{
DialogResult result = openFileDialog.ShowDialog();
if (result == DialogResult.OK)
{
_fileName = openFileDialog.FileName;
textBoxFileName.Text = _fileName;
try
{
Bitmap bmp = new Bitmap(_fileName);
pictureBoxBarcode.Image = bmp;
}
catch (Exception)
{
pictureBoxBarcode.Image = null;
}
}
}
private void buttonSearchBarcodes_Click(object sender, EventArgs e)
{
FindBarcodes();
}
private void FindBarcodes()
{
if (String.IsNullOrEmpty(_fileName))
return;
Reader reader = new Reader();
reader.RegistrationName = "demo";
reader.RegistrationKey = "demo";
if (checkBoxAll1D.Checked)
reader.BarcodeTypesToFind.All1D = true;
if (checkBoxAll2D.Checked)
reader.BarcodeTypesToFind.All2D = true;
Cursor = Cursors.WaitCursor;
/* -----------------------------------------------------------------------
NOTE: We can read barcodes from specific page to increase performance.
For sample please refer to "Decoding barcodes from PDF by pages" program.
----------------------------------------------------------------------- */
FoundBarcode[] foundBarcodes = reader.ReadFrom(_fileName);
ResetCursor();
List<string> data = new List<string>();
if (foundBarcodes.Length == 0)
{
data.Add("No barcodes found");
}
else
{
foreach (FoundBarcode barcode in foundBarcodes)
data.Add(String.Format("Type \"{0}\" and value \"{1}\"", barcode.Type, barcode.Value));
}
// Cleanup
reader.Dispose();
textBoxResults.Lines = data.ToArray();
}
}
}
60 Day Free Trial or Visit ByteScout BarCode Reader SDK Home Page
Explore ByteScout BarCode Reader SDK Documentation
Explore Samples
Sign Up for ByteScout BarCode Reader SDK Online Training
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Explore Web API Docs
Explore Web API Samples
using System;
using System.Collections.Generic;
using System.Windows.Forms;
namespace GuiExample
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}
}
}
60 Day Free Trial or Visit ByteScout BarCode Reader SDK Home Page
Explore ByteScout BarCode Reader SDK Documentation
Explore Samples
Sign Up for ByteScout BarCode Reader SDK Online Training
Get Your API Key
Explore Web API Docs
Explore Web API Samples
60 Day Free Trial or Visit ByteScout BarCode Reader SDK Home Page
Explore ByteScout BarCode Reader SDK Documentation
Explore Samples
Sign Up for ByteScout BarCode Reader SDK Online Training
Get Your API Key
Explore Web API Docs
Explore Web API Samples