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WinForm uses zxing to generate QR code

2022-06-29 10:31:00 【zlbcdn】

Only bar codes have been used before , Using a font library . I saw a QR code generator on the Internet this morning , Tried it , It's simple .

ZXing It's a pass Java Implementation of the open source class library , The main purpose is to generate / Analyze various bar codes , The supported encoding methods are as follows ：

It supports many coding methods .

in addition , I found it on the Internet ZXing Of Demo Mostly Java Compiling , So you can also write it down winform With the implementation of the .

1、 effect

The effect is as follows :

2、 Specific operation

1、 download ZXing Related documents . Specifically ： CodePlex perhaps GitHub

2、 Reference in project zxing.dll

3、using ZXing;

4、 Write code

3、 The code analysis

There is only one interface , Extremely simple

 private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                // Generate the core class of barcode , For specific related methods, please refer to the method description 
                var writer = new BarcodeWriter
                {

                    Format = BarcodeFormat.QR_CODE,// The encoding type （ Enumeration type ）
                    Options = new ZXing.Common.EncodingOptions
                    {
                        // Set the size of the barcode 
                        Width=210,
                        Height=210
                    },
                    //BitMatrix
                    Renderer = (ZXing.Rendering.IBarcodeRenderer<Bitmap>)Activator.CreateInstance(Renderer)
                };

                // Generate content QR code , And show it in pictureBox On 
                // As for whether to save it locally or use it directly , It depends on the actual demand 
                this.pictureBox1.Image = writer.Write(this.textBox1.Text);
            }
            catch (Exception exc)
            {
                MessageBox.Show(this, exc.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }