轉載：https://www.cnblogs.com/xixim/p/4589078.html

下載地址：http://pan.baidu.com/s/1kTr3Vuf

Step1：使用VS2010新建一個窗體程序項目：

Step2：添加三個類：分別是BarCodeClass.cs、DocementBase.cs、imageDocument.cs。（下一步貼出這些類的代碼）;;;;添加下載回來的引用zxing.dll。

》說明：

《1》?? BarCodeClass.cs主要用來實現條形碼和二維碼的生成和解析。

《2》?? DocementBase.cs、imageDocument.cs這兩個類是用來實現對生成的條形碼和二維碼進行打印。

Step3:編寫上一步的三個類的代碼：

》BarCodeClass.cs

????using?System;

using?System.Collections.Generic;

using?System.Linq;

using?System.Text;

using?ZXing.Common;

using?ZXing;

using?System.Windows.Forms;

using?System.Drawing;

using?System.Text.RegularExpressions;

using?ZXing.QrCode;

namespace?BarCode

{

????class?BarCodeClass

??? {

????????///<summary>

?? ?????///生成條形碼

????????///</summary>

????????///<paramname="pictureBox1"></param>

????????///<paramname="Contents"></param>

????????public?void?CreateBarCode(PictureBoxpictureBox1,string?Contents)

??????? {

????????????Regexrg =?new?Regex("^[0-9]{12}$");

? ??????????if(!rg.IsMatch(Contents))

???????????? {

?????????????????MessageBox.Show("本例子采用EAN_13編碼，需要輸入12位數字");

?????????????????return;

???????????? }

?

????????????EncodingOptionsoptions =null;

????????????BarcodeWriterwriter =null;

??????????? options =?newEncodingOptions

??????????? {

??????????????? Width = pictureBox1.Width,

??????????????? Height = pictureBox1.Height

??????????? };

??????????? writer =?newBarcodeWriter();

??????????? writer.Format =?BarcodeFormat.ITF;

??????????? writer.Options = options;

?

????????????Bitmapbitmap = writer.Write(Contents);

??????????? pictureBox1.Image = bitmap;?

??????? }

?

????????///<summary>

????????///生成二維碼

????????///</summary>

????????///<paramname="pictureBox1"></param>

????????///<paramname="Contents"></param>

????????public?void?CreateQuickMark(PictureBoxpictureBox1,string?Contents)

??????? {

????????????if(Contents ==?string.Empty)

?????? ?????{

????????????????MessageBox.Show("輸入內容不能為空！");

????????????????return;

??????????? }

?

????????????EncodingOptionsoptions =null;

????????????BarcodeWriterwriter =null;

?

??????????? options =?newQrCodeEncodingOptions

?????????? {

?????????????? DisableECI =?true,

?????????????? CharacterSet =?"UTF-8",

?????????????? Width = pictureBox1.Width,

?????????????? Height = pictureBox1.Height

?????????? };

??????????? writer =?newBarcodeWriter();

??????????? writer.Format =?BarcodeFormat.QR_CODE;

??????? ????writer.Options = options;

?

????????

????????????Bitmapbitmap = writer.Write(Contents);

??????????? pictureBox1.Image = bitmap;

??????? }

?

????????///<summary>

????????///解碼

????????///</summary>

????????///<paramname="pictureBox1"></param>

????????public?void?Decode(PictureBoxpictureBox1)

??????? {

????????????BarcodeReaderreader =new?BarcodeReader();

????????????Resultresult = reader.Decode((Bitmap)pictureBox1.Image);

??????? }

??? }

}

?

》DocementBase.cs

????using?System;

using?System.Collections.Generic;

using?System.Linq;

using?System.Text;

using?System.Drawing.Printing;

using?System.Drawing;

using?System.Windows.Forms;

?

namespace?BarCode

{

????class?DocementBase?:?PrintDocument

??? {

????????//fields

????????public?Font?Font =?new?Font("Verdana",10,?GraphicsUnit.Point);

?

????????//預覽打印

????????public?DialogResult?showPrintPreviewDialog()

??????? {

????????????PrintPreviewDialogdialog =new?PrintPreviewDialog();

??? ????????dialog.Document =?this;

?

????????????returndialog.ShowDialog();

??????? }

?

????????//先設置后打印

????????public?DialogResult?ShowPageSettingsDialog()

??????? {

????????????PageSetupDialogdialog =new?PageSetupDialog();

??????????? dialog.Document =?this;

?

????????????returndialog.ShowDialog();

??????? }

??? }

}

?

》imageDocument.cs

????using?System;

using?System.Collections.Generic;

using?System.Linq;

using?System.Text;

using?System.Drawing;

using?System.Drawing.Printing;

?

namespace?BarCode

{

????class?imageDocument?:?DocementBase

??? {

????????privateImage?_Image;

?

????????public?Image?Image

??????? {

????????????get

??????????? {

????????????????return_Image;

??????????? }

????????????set

??????????? {

??????????????? _Image =?value;

?

????????????????if(_Image !=?null)

??????????????? {

????????????????????if(_Image.Size.Width > _Image.Size.Height)

???????????????????????DefaultPageSettings.Landscape =?true;

????????????????????else

???????????????????????DefaultPageSettings.Landscape =?false;

????? ??????????}

??????????? }

??????? }

?

????????publicimageDocument()

??????? {

?

??????? }

?

????????publicimageDocument(Image?image)

??????? {

????????????this.Image= image;

??????? }

?

????????protectedoverridevoidOnPrintPage(PrintPageEventArgs?e)

???? ???{

????????????if(Image ==?null)

??????????? {

????????????????thrownewInvalidOperationException();

??????????? }

?

????????????RectanglebestFit = GetBestFitRectangle(e.MarginBounds, Image.Size);

?????????

??????????? e.Graphics.DrawImage(Image, bestFit);

?

??????????? e.Graphics.DrawRectangle(Pens.Black, bestFit);

??????????? e.Graphics.DrawRectangle(Pens.Black, e.MarginBounds);

??????? }

?

???????//?保持高度比：參數為(打印邊界的Rectangularle對象，圖像大小的Size對象)

????????protectedRectangle?GetBestFitRectangle(Rectangle?toContain,SizeobjectSize)

??????? {

????????????//檢查頁面是水平還是豎直的。

????????????boolcontainerLandscape =false;

????????????if(toContain.Width > toContain.Height)

??????????????? containerLandscape =?true;

?

????????????//高度比=圖像的高/圖像的寬

????????????floataspectRatio = (float)objectSize.Height / (float)objectSize.Width;

????????????//得到頁面左上角的坐標

????????????intmidContainerX = toContain.Left + (toContain.Width / 2);

????????????intmidContainerY = toContain.Top + (toContain.Height / 2);

?

????????????intx1 = 0, x2 = 0, y1 = 0, y2 = 0;

????????????if(containerLandscape ==false)

??????????? {

????????????????//豎直圖像

??????????????? x1 = toContain.Left;

??????????????? x2 = toContain.Right;

????????????????//調整之后的height

????????????????intadjustedHeight = (int)((float)toContain.Width * aspectRatio);

?

??????????????? y1 = midContainerY -(adjustedHeight / 2);

??????????????? y2 = y1 + adjustedHeight;

??????????? }

????????????else

??????????? {

??????????????? y1 = toContain.Top;

??????????????? y2 = toContain.Bottom;

????????????????//調整之后的height

????????????????intadjustedWidth = (int)((float)toContain.Height/ aspectRatio);

?

??????????????? x1 = midContainerX -(adjustedWidth / 2);

??????????????? x2 = x1 + adjustedWidth;

??????????? }

????????????returnnewRectangle(x1,y1, x2 - x1, y2 - y1);

??????? }

??? }

}

?

Step4：修改界面。

Step5：依次雙擊【生成條形碼】、【生成二維碼】、【解碼】、【打印】等按鈕，進入Click事件,編寫后臺代碼。這里不再一一講述如何實現。代碼參照下一步：

?

Step6:貼出窗體的全部代碼。

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.Text.RegularExpressions;

using?ZXing;

using?ZXing.QrCode.Internal;

using?ZXing.Common;

using?System.IO;

using?ZXing.QrCode;

?

namespace?BarCode

{

????public?partial?class?Main?:?Form

??? {

????????publicMain()

??????? {

??????????? InitializeComponent();?

??????? }

?

???????private?BarCodeClass?bcc =?newBarCodeClass();

???????private?DocementBase?_docement;

?

????????//生成條形碼

????????privatevoid?button1_Click(objectsender,EventArgs?e)

??????? {

?

??????????? bcc.CreateBarCode(pictureBox1,txtMsg.Text);

??????????

??????? }

????????//生成二維碼

????????privatevoid?button2_Click(objectsender,EventArgs?e)

??????? {

??????????? bcc.CreateQuickMark(pictureBox1, txtMsg.Text);

??????? }

?

????????privatevoid?Form1_Load(objectsender,EventArgs?e)

??????? {

??????????? txtMsg.Text = System.DateTime.Now.ToString("yyyyMMddhhmmss").Substring(0,12);

??????? }

????????//解碼

????????privatevoid?button4_Click(objectsender,EventArgs?e)

??????? {

????????????if(pictureBox1.Image ==null)

??????????? {

????????????????MessageBox.Show("請錄入圖像后再進行解碼!");

????????????????return;

??????????? }

????????????BarcodeReaderreader =new?BarcodeReader();?

????????????Resultresult = reader.Decode((Bitmap)pictureBox1.Image);

????????????MessageBox.Show(result.Text);

??????? }

?

????????//打印

????????privatevoid?button3_Click(objectsender,EventArgs?e)

??????? {

??????????

????????????if(pictureBox1.Image ==null)

??????????? {

?????? ?????????MessageBox.Show("You Must Load an Image first!");

????????????????return;

??????????? }

????????????else

??????????? {

??????????????? _docement=new?imageDocument(pictureBox1.Image);

??????????? }

????????? _docement.showPrintPreviewDialog();

?? ?????}

??? }

?

}

?

Step7：剩下的就是演示了：本機演示結果如下：

》運行程序：點擊【生成條形碼】，結果如下：

》點擊【解碼】按鈕，結果如下：

》點擊《打印》按鈕，結果如下：

》點擊【生成二維碼】按鈕，結果如下：

》點擊【解碼】按鈕，結果如下：

》點擊【打印】按鈕，結果如下：

總結

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