开源项目barcodelib-C#条形码图像生成库

Barcode();Barcode(string);Barcode(string, BarcodeLib.TYPE);

BarcodeLib.Barcode b = new BarcodeLib.Barcode();Image img = b.Encode(BarcodeLib.TYPE.UPCA, "038000356216", Color.Black, Color.White, 290, 120);

privatevoid btnEncode_Click(object sender, EventArgs e) { errorProvider1.Clear(); int W = Convert.ToInt32(this.txtWidth.Text.Trim()); int H = Convert.ToInt32(this.txtHeight.Text.Trim()); b.Alignment = AlignmentPositions.CENTER;
//barcode alignmentswitch (cbBarcodeAlign.SelectedItem.ToString().Trim().ToLower()) {case"left": b.Alignment = AlignmentPositions.LEFT; break;case"right": b.Alignment = AlignmentPositions.RIGHT; break;default: b.Alignment = AlignmentPositions.CENTER; break; }//switch
 TYPE type = TYPE.UNSPECIFIED;switch (cbEncodeType.SelectedItem.ToString().Trim()) {case"UPC-A": type = TYPE.UPCA; break;case"UPC-E": type = TYPE.UPCE; break;case"UPC 2 Digit Ext.": type = TYPE.UPC_SUPPLEMENTAL_2DIGIT; break;case"UPC 5 Digit Ext.": type = TYPE.UPC_SUPPLEMENTAL_5DIGIT; break;case"EAN-13": type = TYPE.EAN13; break;case"JAN-13": type = TYPE.JAN13; break;case"EAN-8": type = TYPE.EAN8; break;case"ITF-14": type = TYPE.ITF14; break;case"Codabar": type = TYPE.Codabar; break;case"PostNet": type = TYPE.PostNet; break;case"Bookland/ISBN": type = TYPE.BOOKLAND; break;case"Code 11": type = TYPE.CODE11; break;case"Code 39": type = TYPE.CODE39; break;case"Code 39 Extended": type = TYPE.CODE39Extended; break;case"Code 39 Mod 43": type = TYPE.CODE39_Mod43; break;case"Code 93": type = TYPE.CODE93; break;case"LOGMARS": type = TYPE.LOGMARS; break;case"MSI": type = TYPE.MSI_Mod10; break;case"Interleaved 2 of 5": type = TYPE.Interleaved2of5; break;case"Interleaved 2 of 5 Mod 10": type = TYPE.Interleaved2of5_Mod10; break;case"Standard 2 of 5": type = TYPE.Standard2of5; break;case"Standard 2 of 5 Mod 10": type = TYPE.Standard2of5_Mod10; break;case"Code 128": type = TYPE.CODE128; break;case"Code 128-A": type = TYPE.CODE128A; break;case"Code 128-B": type = TYPE.CODE128B; break;case"Code 128-C": type = TYPE.CODE128C; break;case"Telepen": type = TYPE.TELEPEN; break;case"FIM": type = TYPE.FIM; break;case"Pharmacode": type = TYPE.PHARMACODE; break;default: MessageBox.Show("Please specify the encoding type."); break; }//switch
try {if (type != TYPE.UNSPECIFIED) {try { b.BarWidth = textBoxBarWidth.Text.Trim().Length < 1 ?  : (int?)Convert.ToInt32(textBoxBarWidth.Text.Trim()); }catch (Exception ex) {thrownew Exception("Unable to parse BarWidth: " + ex.Message, ex); }try { b.AspectRatio = textBoxAspectRatio.Text.Trim().Length < 1 ?  : (double?)Convert.ToDouble(textBoxAspectRatio.Text.Trim()); }catch (Exception ex) {thrownew Exception("Unable to parse AspectRatio: " + ex.Message, ex); }
 b.IncludeLabel = this.chkGenerateLabel.Checked; b.RotateFlipType = (RotateFlipType)Enum.Parse(typeof(RotateFlipType), this.cbRotateFlip.SelectedItem.ToString(), true);
if (!String.IsOrEmpty(this.textBox1.Text.Trim())) b.AlternateLabel = this.textBox1.Text;else b.AlternateLabel = this.txtData.Text;
//label alignment and positionswitch (this.cbLabelLocation.SelectedItem.ToString().Trim().ToUpper()) {case"BOTTOMLEFT": b.LabelPosition = LabelPositions.BOTTOMLEFT; break;case"BOTTOMRIGHT": b.LabelPosition = LabelPositions.BOTTOMRIGHT; break;case"TOPCENTER": b.LabelPosition = LabelPositions.TOPCENTER; break;case"TOPLEFT": b.LabelPosition = LabelPositions.TOPLEFT; break;case"TOPRIGHT": b.LabelPosition = LabelPositions.TOPRIGHT; break;default: b.LabelPosition = LabelPositions.BOTTOMCENTER; break; }//switch
//===== Encoding performed here ===== barcode.BackgroundImage = b.Encode(type, this.txtData.Text.Trim(), this.btnForeColor.BackColor, this.btnBackColor.BackColor, W, H);//===================================
//show the encoding timethis.lblEncodingTime.Text = "(" + Math.Round(b.EncodingTime, 0, MidpointRounding.AwayFromZero).ToString() + "ms)";
 txtEncoded.Text = b.EncodedValue;
 tsslEncodedType.Text = "Encoding Type: " + b.EncodedType.ToString();
// Read dynamically calculated Width/Height because the user is interested.if (b.BarWidth.HasValue) txtWidth.Text = b.Width.ToString();if (b.AspectRatio.HasValue) txtHeight.Text = b.Height.ToString(); }//if
//reposition the barcode image to the middle barcode.Location = new Point((this.barcode.Location.X + this.barcode.Width / 2) - barcode.Width / 2, (this.barcode.Location.Y + this.barcode.Height / 2) - barcode.Height / 2); }//trycatch (Exception ex) { MessageBox.Show(ex.Message); }//catch }//btnEncode_Click