C # uses zxing.net to operate QR codes and barcodes

: http://zxingnet.codeplex.com/

Zxing.net is a tool for barcode and QR code under the. NET platform, which is very convenient to use.

First download the binary DLL file, introduce the project;

Code:

C # code

2. Using System;
4. Using System.Collections.Generic;
6. Using System.ComponentModel;
8. Using System.Data;
10. Using System.Drawing;
12. Using System.Text;
14. Using System.Windows.Forms;
16. Using Zxing.qrcode;
18. Using ZXing;
20. Using Zxing.common;
22. Using Zxing.rendering;
26. Namespace Zxingtest
28. {
30. Public partial class Form1:form
32. {
34. Encodingoptions options = null;
36. Barcodewriter writer = null;
40. Public Form1 ()
42. {
44. InitializeComponent ();
46. options = New Qrcodeencodingoptions
48. {
50. Disableeci = true,
52. CharacterSet = "UTF-8",
54. Width = Pictureboxqr.width,
56. Height = Pictureboxqr.height
58. };
60. writer = new Barcodewriter ();
62. Writer. Format = Barcodeformat.qr_code;
64. Writer. options = options;
66. }
70. private void Buttonqr_click (object sender, EventArgs e)
72. {
74. if (Textboxtext.text = = string. Empty)
76. {
78. MessageBox.Show ("The input cannot be empty!")  ");
80. return;
82. }
84. Bitmap Bitmap = writer. Write (Textboxtext.text);
86. Pictureboxqr.image = bitmap;
88. }
90. }
92. }

Effect:

Character formatting can be specified when characters are encoded, the default is iso-8859-1 English character set, but generally mobile devices commonly used UTF-8 character set encoding,

Encoding can be set by Qrcodeencodingoptions.

If you want to generate additional zxing-supported barcodes, just modify the Barcodewriter.format.

C # code

2. Using System;
4. Using System.Collections.Generic;
6. Using System.ComponentModel;
8. Using System.Data;
10. Using System.Drawing;
12. Using System.Text;
14. Using System.Windows.Forms;
16. Using Zxing.qrcode;
18. Using ZXing;
20. Using Zxing.common;
22. Using Zxing.rendering;
26. Namespace Zxingtest
28. {
30. Public partial class Form1:form
32. {
34. Encodingoptions options = null;
36. Barcodewriter writer = null;
40. Public Form1 ()
42. {
44. InitializeComponent ();
46. options = New Encodingoptions
48. {
50. //disableeci = True,
52. //characterset = "UTF-8",
54. Width = Pictureboxqr.width,
56. Height = Pictureboxqr.height
58. };
60. writer = new Barcodewriter ();
62. Writer. Format = BARCODEFORMAT.ITF;
64. Writer. options = options;
66. }
70. private void Buttonqr_click (object sender, EventArgs e)
72. {
74. if (Textboxtext.text = = string. Empty)
76. {
78. MessageBox.Show ("The input cannot be empty!")  ");
80. return;
82. }
84. Bitmap Bitmap = writer. Write (Textboxtext.text);
86. Pictureboxqr.image = bitmap;
88. }
90. }
92. }

Effect:

The input string needs to conform to the encoded format, or it will error. Decoding method: C # code

2. Using System;
4. Using System.Collections.Generic;
6. Using System.ComponentModel;
8. Using System.Data;
10. Using System.Drawing;
12. Using System.Text;
14. Using System.Windows.Forms;
16. Using Zxing.qrcode;
18. Using ZXing;
20. Using Zxing.common;
22. Using Zxing.rendering;
26. Namespace Zxingtest
28. {
30. Public partial class Form1:form
32. {
34. Barcodereader reader = null;
38. Public Form1 ()
40. {
42. InitializeComponent ();
44. reader = new Barcodereader ();
46. }
50. private void Form1_dragenter (object sender, DragEventArgs e)//When drag and drop into form
52. {
54. if (e.data.getdatapresent (dataformats.filedrop))
56. E.effect = dragdropeffects.copy; //Show copy effect
58. Else
60. E.effect = DragDropEffects.None;
62. }
66. private void Form1_dragdrop (object sender, DragEventArgs e) //When dragged and placed on a form
68. {
70. string[] FileNames = (string[]) e.data.getdata (DataFormats.FileDrop, false); //Get file name
72. if (filenames.length > 0)
74. {
76. Pictureboxpic.load (Filenames[0]); //Show Pictures
78. Result result = reader. Decode ((Bitmap) pictureboxpic.image); //decoding via reader
80. Textboxtext.text = result. Text; //Show analytic results
82. }
84. }
86. }
88. }

• Zxingdecoder.zip (401.4 KB)
• Download number of times: 117

• Zxingencoder.zip (395.8 KB)
• Download number of times: 106

• View Picture Attachments

C # uses zxing.net to operate QR codes and barcodes