Aspose::BarCode::BarCodeRecognition::BarcodeSettings::set_OnlyRequestedTypes method

BarcodeSettings::set_OnlyRequestedTypes method

Returns only barcode types explicitly specified for recognition. When enabled, recognized barcodes of other compatible or equivalent types are filtered out. Default value is false.

void Aspose::BarCode::BarCodeRecognition::BarcodeSettings::set_OnlyRequestedTypes(bool value)

Remarks

This sample shows how to restrict recognition results to requested barcode types only

[C#]
//generate EAN13 barcode
using (BarcodeGenerator generator = new BarcodeGenerator(EncodeTypes.EAN13, "2383823482894"))
    generator.Save(@"c:\test.png");
//recognize only UPCA barcodes (no results, because source is EAN13)
using (BarCodeReader reader = new BarCodeReader(@"c:\test.png", DecodeType.UPCA))
{
    reader.BarcodeSettings.OnlyRequestedTypes = true;
    foreach (BarCodeResult result in reader.ReadBarCodes())
        Console.WriteLine("BarCode CodeText: " + result.CodeText);
}
//recognize compatible types: EAN13, UPCA, ISSN, ISMN, ISBN (EAN13 will be returned as UPCA-equivalent)
using (BarCodeReader reader = new BarCodeReader(@"c:\test.png", DecodeType.UPCA))
{
    reader.BarcodeSettings.OnlyRequestedTypes = false;
    foreach (BarCodeResult result in reader.ReadBarCodes())
        Console.WriteLine("BarCode CodeText: " + result.CodeText);
}

Returns only barcode types explicitly specified for recognition. Default value is false.

See Also

Aspose::BarCode::BarCodeRecognition::BarcodeSettings::get_OnlyRequestedTypes method Aspose::BarCode::BarCodeRecognition::BarcodeSettings::get_DetectEncoding method