Syntax mtDestroyBarcodeInstance(hBarcode) Parameters hBarcode Handle to an instance of the barcode toolkit. Return Value 1/True on success and 0/False on failure. Remarks DestroyBarcodeInstance destroys an instance of the barcode toolkit and releases any resources used by the toolkit. This function only exists in the dll interface to the SDK. Example: Dim hBarcode As System.IntPtr hBarcode = …
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ColorProcessingLevel – control time taken processing color images
Overview The ColorProcessingLevel property controls the amount of processing time spent reading barcode values from color images. Values range from 0 to 5, with a default of 2. A low value will process color images faster but accuracy and read-rate levels will be lower than if a high value is used. Please note that …
ReadDatabar – read GS1 databar barcodes
Overview When set to TRUE the toolkit will search for GS1 Databar barcodes. The following types of GS1 Databar are supported: RSS-14 RSS-14 Truncated RSS-14 Stacked RSS-14 Stacked Omnidirectional RSS Limited RSS Expanded RSS Expanded Stacked Please note the the bounding rectangle for stacked versions of the barcode currently only includes either the top-most …
DatabarOptions – set options for reading GS1 Databar barcodes
Overview The DatabarOptions property can be used to set various options for GS1 Databar recognition. All options are turned on by default, but some applications may find it useful to disable certain features for performance reasons. The property works as a mask and can be constructed from the following values: 1 Read the supplementary 2-D …
bardecode shell tool
The bardecode command provides an interface to the barcode reader toolkit from the shell. For example, the following command will scan an image file for barcodes and print the values: bardecode -t any -m -f somefile.tif Options are flags such as -m, which may or may not take an argument long options are property name …
AllowDuplicateValues – permit duplicate barcode values on a page.
Overview The AllowDuplicateValues can be used to stop the toolkit from reporting duplicate barcodes on the same page in an image. This can be useful for images where the middle section of a barcode is badly damaged or missing. With the property set to TRUE the toolkit may report that there are 2 barcodes of …
BitmapResolution – specify the resolution of a bitmap
BitmapResolution is the resolution of the bitmap to be scanned in ScanBarCodeFromBitmap, in dots per inch. This value only effects the expected size of the quiet area around a barcode and for most images can be left to the default value. Type: SHORT Default value: 200
Code39Checksum – expect a checksum in Code 39 barcodes
When True the toolkit will only report Code 39 barcodes where the last character is a valid checksum for the rest of the barcode. The toolkit expects a Code 39 checksum to be calculated using modulus-43. The following table shows the character and value used for the calculation… Char Value Char Value Char Value Char Value 0 0 B 11 M 22 X 33 1 1 C 12 N 23 Y 34 2 2 D 13 O 24 Z 35 3 3 E 14 P 25 – 36 4 4 F 15 Q 26 . 37 5 5 G 16 R 27 space 38 …
Code39NeedStartStop – expect the Code 39 start/stop character
When set to TRUE the toolkit will only report Code 39 barcodes that start and end with a * character. Setting this property to FALSE is not recommended for the following reasons: It is not a valid Code 39 barcode without the start and stop * character. Without a start/stop * character, a Code 39 …
ColorThreshold – contrast setting for color images
ColorThreshold is the color value used by the control to decide whether a pixel should be considered to be black or white. The value should be in the range 0 to 255. Please note that if this property is set to a non-zero value than ColorProcessingLevel is effectively set to a value of 0. It is recommended to …