C# 產生QRCode

2021-11-03

QRCode範例

目前專案有用到QRcode，目前Google到Zxing.net這套件，下面範例教導如何產生QRCode

1.首先到nutget下載QRCode.net

2. 程式引入ZXing

3. 建立產生QRCode的方法

 private Bitmap CreateQRCode(string content,int width,int hight)
        {
            var writer = new BarcodeWriter
            {
                Format = BarcodeFormat.QR_CODE,
                Options = new ZXing.QrCode.QrCodeEncodingOptions
                {
                    Height = hight,   //圖形的高
                    Width = width,    //圖形的寬
                    Margin = 1,
                    CharacterSet = "UTF-8",
                    ErrorCorrection = ZXing.QrCode.Internal.ErrorCorrectionLevel.M,
                    DisableECI = true
                }
            };

            var bm = writer.Write(content);
            return bm;
        }

4.程式碼呼叫

 private void button1_Click(object sender, EventArgs e)
        {
            int width = int.Parse(textBoxWidth.Text);
            int height = int.Parse(textBoxHigh.Text);
            var content = textBoxInput.Text.Trim();
            pictureBox1.Image = CreateQRCode(content, width, height);
        }

5.完成

完整程式碼

using System;
using System.Drawing;
using System.Windows.Forms;
using ZXing;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            int width = int.Parse(textBoxWidth.Text);
            int height = int.Parse(textBoxHigh.Text);
            var content = textBoxInput.Text.Trim();
            pictureBox1.Image = CreateQRCode(content, width, height);
        }

        private Bitmap CreateQRCode(string content,int width,int hight)
        {
            var writer = new BarcodeWriter
            {
                Format = BarcodeFormat.QR_CODE,
                Options = new ZXing.QrCode.QrCodeEncodingOptions
                {
                    Height = hight,   //圖形的高
                    Width = width,    //圖形的寬
                    Margin = 1,
                    CharacterSet = "UTF-8",
                    ErrorCorrection = ZXing.QrCode.Internal.ErrorCorrectionLevel.M,
                    DisableECI = true
                }
            };

            var bm = writer.Write(content);
            return bm;
        }
    }
}

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