Introduction:
In last article we discuss about
generating barcode images.
In this article we will discuss about to reading those barcode images from C#.
For generating barcode Images we used this
SDK provided by OnBarcode.com. For reading those barcodei mages or scannig those
barcode images OnBarcode.com provide the BarCodeReader SDK which is available
here.
You can download it and use it as usual.
BackGround:
In some cases developer need to
generate the barcode images and scan those barcode images. You can check how to
generating barcode images
and scannig those barcode images from our C# application. We will see how to
perform the scannig task in this article step-by-step.
Step 1:
Download barcode reader dll from
here
and add the reference to Onbarcode.Barcode.BarcodeScanner to your application.
Step 2:
This BarcodeScanner dll contain so
many methods to scan the barcode image and retrive the data present in those
images. Write this two methods to scan the barcode images.
1)
ReadBarcodeFromFile:
This
method is very simple method to scan the barcode image which will take the
filenpath as argument where barcode image is present and retrive String[] as
data.
private String[] ReadBarcodeFromFile(string
_Filepath)
{
String[]
barcodes = BarcodeScanner.Scan(_Filepath,
BarcodeType.Code39);
return barcodes;
}
2)
Read BarcodeFromBitmap:
This one other method is provided by
BarcodeScanner dll which will take Bitmap image as input and returns same
String[] as output.
private String[] ReadBarcodeFromBitmap(Bitmap
_bimapimage)
{
System.Drawing.Bitmap
objImage = _bimapimage;
String[]
barcodes = BarcodeScanner.Scan(objImage,
BarcodeType.Code39);
return
barcodes;
}
You can
call this method by passing barcode image as bitmap.
Conclusion:
In this way we can scan the
barcode images using C#.