Example code written by C # zxing two-dimensional code

private void Button1_Click (object sender, EventArgs e) {if (string. IsNullOrEmpty (This.textBox1.Text.Trim ())) {MessageBox.Show ("Please enter the information you need to convert!")                ");            Return            The string content = TextBox1.Text;               Hashtable hints= new Hashtable (); Hints. ADD (Encodehinttype.error_correction, ERRORCORRECTIONLEVEL.L);//error correction level hints. ADD (Encodehinttype.character_set, "UTF-8");//encoding format Bytematrix Bytematrix = new Multiformatwriter (). Encode (Conten            T, Barcodeformat.qr_code, +, hints);            Bitmap Bitmap = Tobitmap (Bytematrix);            pictureBox1.Image = bitmap;            SaveFileDialog SFD = new SaveFileDialog ();            Sfd.filter = "*.png|*.png";            Sfd.addextension = true; try {if (sfd.showdialog () = = DialogResult.OK) {WriteToFile (b  Ytematrix, System.Drawing.Imaging.ImageFormat.Png, sfd.filename);              }} catch (Exception ex) {MessageBox.Show (ex).            Message); }} public static void WriteToFile (Bytematrix matrix, System.Drawing.Imaging.ImageFormat format, string file            ) {System.Drawing.Imaging.EncoderParameters EPS = new System.Drawing.Imaging.EncoderParameters (); Eps.            Param[0] = new System.Drawing.Imaging.EncoderParameter (System.Drawing.Imaging.Encoder.Quality, 100L);            Bitmap bmap = Tobitmap (matrix); Bmap.        Save (file, format); } public static Bitmap Tobitmap (Bytematrix matrix) {int width = matrix.            Width; int height = matrix.            Height;            Bitmap bmap = new Bitmap (width, height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);                    for (int x = 0; x < width; + +) {for (int y = 0; y < height; y++) { Bmap. SetPixel (x, Y, Matrix.get_renamEd (x, y)! =-1?            Colortranslator.fromhtml ("Purple"): colortranslator.fromhtml ("0xFFFFFFFF"));//can customize color and background colors}}             return bmap; }

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