Link Search Menu Expand Document

GUI Example for Barcode Reading - C#

BarCode Reader SDK sample in C# demonstrating ‘GUI Example for Barcode Reading’

Form1.cs
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();
        }
    }
}

Form1.Designer.cs
��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;

    }

}




Program.cs
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());
        }
    }
}

Download Source Code (.zip)

Return to the previous page Explore BarCode Reader SDK


Copyright © 2016 - 2021 ByteScout