BarcodeDecoder Properties



BarcodeTypes
Returns or sets what types of barcodes should be decoded. Each barcode type is specified with the help of a certain EBarcodeTypes value. The BarcodeTypes property can consist of any combination of these values, you should use the logical OR for that.

Syntax 
object.BarcodeTypes [ = BarcodeTypesValue ]
Possible Values
BarcodeTypesValue Integer that contains the combination of EBarcodeTypes.

The property is read/write.
Remarks
It is advisable to set this property when you need to decode only certain barcode types (for instance, only Code128 and EAN-13) because it increases the performance rate and the reliability of the decoding algorithm.
Example
[Script]

var dec = new ActiveXObject("BarcodeReader.BarcodeDecoder");
dec.BarcodeTypes = 0x04|0x08; //decode only Interleaved 2/5 and EAN-13

[Visual Basic]

Dim dec As Object
Set dec = CreateObject("BarcodeReader.BarcodeDecoder")
dec.BarcodeTypes = &H1 Or &H8 Or &H80 'decode only Code128, EAN13 and UPCA



LinearFindBarcodes
Returns or sets how many barcodes should be decoded on the image. An image may contain one or several barcodes.

Syntax 
object.LinearFindBarcodes [ = iLinearFindBarcodes ]
Possible Values
iLinearFindBarcodes Integer from 1 to any value

The property is read/write.
Remarks
If you need to decode only one barcode, it is better to set this property to 1 because it will make the decoding process faster.
LinearShowSymbologyID
Returns or sets the value determining whether to add Symbology ID to the barcode text or not (Text property).

Syntax 
object.LinearShowSymbologyID [ = bLinearShowSymbologyID ]
Possible Values
bLinearShowSymbologyID Boolean that specifies or receives the LinearShowSymbologyID

The property is read/write.
Remarks
For instance, if it is set to False, the Text property will be "6416764501020" in case you decode an EAN-13 barcode. If LinearShowSymbologyID is set to True, it will be "]E06416764501020". As you can see, the barcode begins with "]E0", which is the ID of an EAN-13 barcode.
LinearVerifyCheckDigit
Returns or sets the value determining whether to verify the optional check digit in barcodes where this check digit is optional.

Syntax 
object.LinearVerifyCheckDigit [ = bLinearVerifyCheckDigit ]
Possible Values
bLinearVerifyCheckDigit Boolean that specifies or receives the LinearVerifyCheckDigit

The property is read/write.
Remarks
For instance, an Interleaved 2/5 barcode may contain an optional check digit. If this property is set to True, this check digit will be verified and if it does not match, the barcode will not be decoded.
In case of barcodes where this check digit is required (for example, EAN-13, Code128, etc.), it is verified automatically no matter what this property is set to.
LinearShowCheckDigit
Returns or sets the value determining whether to show the check digit or not.

Syntax 
object.LinearShowCheckDigit [ = bLinearShowCheckDigit ]
Possible Values
bLinearShowCheckDigit Boolean that specifies or receives the LinearShowCheckDigit

The property is read/write.
Remarks
If it is set to True, the Text property will have the check digit at the end of the barcode.
This property does not make sense for barcodes that have no check digit.
LinearShowStartStop
Returns or sets the value determining whether to show the start/stop characters or not. Some barcode types have start/stop characters (for example, Code39).

Syntax 
object.LinearShowStartStop [ = bLinearShowStartStop ]
Possible Values
bLinearShowStartStop Boolean that specifies or receives the LinearShowStartStop

The property is read/write.
Remarks
If this property is set to True, these start/stop characters will be shown (for instance, *1234567*).
* is the start/stop character for Code39
LinearCode39EnableExtended
Returns or sets the value determining whether to decode Code 39 as Code 39 Extended or not.

Syntax 
object.LinearCode39EnableExtended [ = bLinearCode39EnableExtended ]
Possible Values
bLinearCode39EnableExtended Boolean that specifies or receives the LinearCode39EnableExtended

The property is read/write.
Remarks
A Code 39 Extended barcode can encode the full ASCII charset. If this property is set to True, these characters will be decoded.
LinearUPCE2UPCA
Returns or sets the value determining whether to convert a UPC-E barcode to UPC-A or not.

Syntax 
object.LinearUPCE2UPCA [ = bLinearUPCE2UPCA ]
Possible Values
bLinearUPCE2UPCA Boolean that specifies or receives the LinearUPCE2UPCA

The property is read/write.
ShowImage
Returns or sets the value determining whether to show the image and the decoded barcodes or not. Our BarcodeReader ActiveX can be used in both visible and invisible modes. If it is used in the visible mode and you need to show the image, you should set this property to True. The invisible mode is used in most cases so it is better to set this property to False because it increases the performance rate of BarcodeReader ActiveX.

Syntax 
object.ShowImage [ = bShowImage ]
Possible Values
bShowImage Boolean that specifies or receives the ShowImage

The property is read/write.
FileName
Returns or sets the name of the file you need to decode. As soon as this property is set to any value, the decoding algorithm is called and if the file exists, you can use the Barcodes property to get the results.

Syntax 
object.FileName [ = sFileName ]
Possible Values
sFileName String that specifies or receives the file name

The property is read/write.
Remarks
Using this property is similar to using the Decode methods (DecodeFile, DecodeStream, etc.).
InverseType
Returns or sets what barcodes should be decoded (darks on light or lights on dark).

Syntax 
object.InverseType [ = enInverseType ]
Possible Values
InverseType Enumerator that specifies or receives the InverseType property.

The property is read/write.
BarcodeCount
Returns the number of decoded barcodes.

The property is read only.


Barcodes
Returns the BarcodeList object that contains the collection of decoded barcodes.

The property is read only.