←Select platform

LimitByRowsAndColumns Property

Summary
Gets or sets a value that indicates whether to use the symbol size as limits when writing MicroPDF417 barcodes.
Syntax
C#
Objective-C
C++/CLI
Java
Python
public bool LimitByRowsAndColumns { get; set; } 
@property (nonatomic, assign) BOOL limitByRowsAndColumns; 
public boolean getLimitByRowsAndColumns() 
public void setLimitByRowsAndColumns(boolean value) 
public: 
property bool LimitByRowsAndColumns { 
   bool get(); 
   void set (    bool ); 
} 
LimitByRowsAndColumns # get and set (MicroPDF417BarcodeWriteOptions) 

Property Value

true to use the symbol size as limits when writing MicroPDF417 barcodes. Otherwise, false. The default value is false.

Remarks

When the value of LimitByRowsAndColumns is false, the symbol size is control by the BarcodeData.Bounds and XModule values used. Otherwise, the value of SymbolSize will be used.

For more information, refer to Writing Barcodes - Bounds and XModule.

Example
C#
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Barcode; 
using Leadtools.ImageProcessing; 
 
 
public void MicroPDF417Barcode_Example() 
{ 
   string imageFileName = Path.Combine(LEAD_VARS.ImagesDir, "MyMicroPDF417Barcodes.tif"); 
 
   BarcodeEngine engine = new BarcodeEngine(); 
 
   // Create the image to write the barcodes to 
   int resolution = 300; 
   using (RasterImage image = RasterImage.Create((int)(8.5 * resolution), (int)(11.0 * resolution), 1, resolution, RasterColor.FromKnownColor(RasterKnownColor.White))) 
   { 
      // Write two MicroPDF417 barcodes 
      WriteBarcode(engine.Writer, image, "DATA1", MicroPDF417BarcodeSymbolSize.Smallest, true); 
      WriteBarcode(engine.Writer, image, "DATA2", MicroPDF417BarcodeSymbolSize.Size44X4, false); 
 
      // Save the image 
      using (RasterCodecs codecs = new RasterCodecs()) 
      { 
         codecs.Save(image, imageFileName, RasterImageFormat.CcittGroup4, 1); 
      } 
   } 
 
   // Now read the barcodes again 
   using (RasterCodecs codecs = new RasterCodecs()) 
   { 
      using (RasterImage image = codecs.Load(imageFileName)) 
      { 
         ReadBarcodes(engine.Reader, image); 
      } 
   } 
} 
 
private void WriteBarcode(BarcodeWriter writer, RasterImage image, string value, MicroPDF417BarcodeSymbolSize symbolSize, bool topLeft) 
{ 
   // Create the barcode data 
   MicroPDF417BarcodeData barcode = new MicroPDF417BarcodeData(); 
   barcode.Value = value; 
   barcode.DataCode = 0; 
   barcode.Symbology = BarcodeSymbology.MicroPDF417; 
 
   // We will use the alignment to position the barcodes, so use all of the image 
   barcode.Bounds = new LeadRect(0, 0, image.ImageWidth, image.ImageHeight); 
 
   // Set the write options 
   MicroPDF417BarcodeWriteOptions options = new MicroPDF417BarcodeWriteOptions(); 
 
   if (topLeft) 
   { 
      options.HorizontalAlignment = BarcodeAlignment.Near; 
      options.VerticalAlignment = BarcodeAlignment.Near; 
   } 
   else 
   { 
      options.HorizontalAlignment = BarcodeAlignment.Far; 
      options.VerticalAlignment = BarcodeAlignment.Far; 
   } 
 
   options.UseMode128Emulation = false; 
   options.IsLinked = false; 
   options.EnableGroupMode = false; 
   options.XModule = 30; 
   options.XModuleAspectRatio = 3; 
   options.LimitByRowsAndColumns = true; 
   options.SymbolSize = symbolSize; 
 
   // Write it 
   Console.WriteLine("Writing barcode with symbol size: {0} and Data: {1}", symbolSize, value); 
   writer.WriteBarcode(image, barcode, options); 
} 
 
private void ReadBarcodes(BarcodeReader reader, RasterImage image) 
{ 
   // Setup read options 
   MicroPDF417BarcodeReadOptions options = new MicroPDF417BarcodeReadOptions(); 
   options.SearchDirection = BarcodeSearchDirection.Horizontal; 
   options.EnableDoublePass = false; 
   options.ReadMode = MicroPDF417BarcodeReadMode.Mode0; 
   options.ReadOptionalMacroFileNameField = false; 
   options.ReadOptionalMacroSegmentCountField = false; 
   options.ReadOptionalMacroTimestampField = false; 
   options.ReadOptionalMacroSenderField = false; 
   options.ReadOptionalMacroAddresseeField = false; 
   options.ReadOptionalMacroFileSizeField = false; 
   options.ReadOptionalMacroChecksumField = false; 
   options.ReadOptionalMacro79AndAZField = false; 
   options.EnableDoublePassIfSuccess = true; 
   options.EnablePreprocessing = true; 
 
   Console.WriteLine("Reading Barcodes"); 
   BarcodeData[] barcodes = reader.ReadBarcodes(image, LeadRect.Empty, 0, new BarcodeSymbology[] { BarcodeSymbology.MicroPDF417 }, new BarcodeReadOptions[] { options }); 
   Console.WriteLine("{0} barcodes found:", barcodes.Length); 
   foreach (MicroPDF417BarcodeData barcode in barcodes) 
   { 
      Console.WriteLine(" At {0} data: {1} and symbology: {2}", barcode.Bounds, barcode.Value, barcode.Symbology); 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
} 
Requirements

Target Platforms

Help Version 22.0.2023.5.9
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.

Leadtools.Barcode Assembly

Products | Support | Contact Us | Intellectual Property Notices
© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.