[C #] Two-dimensional code printing

Using system;using system.collections.generic;using system.componentmodel;using system.data;using System.Drawing; Using system.linq;using system.text;using system.windows.forms;using system.drawing.printing;using Thoughtworks.qrcode.codec;using thoughtworks.qrcode.codec.data;using Thoughtworks.qrcode.codec.util;namespace  twodimensioncodeprint{public partial class Print:form {private int left = 0, top = 0, width = max, height        = 150;                private string fileName = "d:\\ qr code e-ticket \ \ Red Valley Grand ticket \\20141025111316 Red River Valley grand entrance ticket total 30. jpg";        Public Print () {InitializeComponent (); }//print private void Btnprint_click (object sender, EventArgs e) {if (pictureBox1.Image = =                NULL) {MessageBox.Show ("Please select a QR code image");            Return            }//Print preview PrintPreviewDialog PrintPreviewDialog = new PrintPreviewDialog ();      PrintDocument PrintDocument = new PrintDocument ();      Set the margin try {left = Int.                Parse (Txtleft.text); top = Int.                Parse (Txttop.text); width = Int.                Parse (Txtwidth.text); height = Int.            Parse (Txtheight.text);            } catch {MessageBox.Show ("Please enter the correct number");            } Margins margin = new Margins (left, left + width, top, top + height);            PrintDocument.DefaultPageSettings.Margins = margin; Print event settings Printdocument.printpage + = new Printpageeventhandler (this.            Printpageevent);            Print Preview//printpreviewdialog.document = PrintDocument;            Printpreviewdialog.showdialog ();            try {printdocument.print (); } catch (Exception ex) {MessageBox.Show (ex.                Message, "Print error", MessageBoxButtons.OK, Messageboxicon.error); PrintDocument.PrintController.OnEndPrint (printdoCument, New PrintEventArgs ()); }}//print event handling private void Printpageevent (object sender, PrintPageEventArgs e) {//Read            Fetch picture//1 Get//Bitmap image = new Bitmap (fileName)            2 obtained from PictureBox//image image = pictureBox1.Image;            3 Print image image = Produceqrcode ("Sigi") directly based on the generated QR code;            Print the QR code in the specified area Rectangle destrect = new Rectangle (left, top, width, height); E.graphics.drawimage (image, Destrect, 0, 0, image. Width, image.        Height, System.Drawing.GraphicsUnit.Pixel);            }//Fills the result into the picture private void getresultintoimage (ref Image Temp, string name, string date) {            Read the picture Graphics g = graphics.fromimage (temp);            Font f = new font ("Arial", 12);            Brush B = new SolidBrush (System.Drawing.Color.Black); Fills the data to the picture g.drawimage (temp, 0, 0, temp. Width, temp.            Height); G.drawString (name, F, B, 168, 105);            g.DrawString (date, F, B, 176, 269);        G.dispose (); }//Generate two-dimensional code public Image Produceqrcode (string ticketcodecontent) {Qrcodeencoder qrcodeencod            ER = new Qrcodeencoder (); Qrcodeencoder.qrcodeencodemode = Qrcodeencoder.encode_mode.            BYTE;            Qrcodeencoder.qrcodescale = 7;            qrcodeencoder.qrcodeversion = 0; Qrcodeencoder.qrcodeerrorcorrect = qrcodeencoder.error_correction.            L            Qrcodeencoder.qrcodebackgroundcolor = System.Drawing.Color.White;            Qrcodeencoder.qrcodeforegroundcolor = System.Drawing.Color.Black;        Return Qrcodeencoder.encode (ticketcodecontent); }    }}

Operating interface:

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[C #] Two-dimensional code printing