Most barcodes store text information but 2-D barcodes (such as QR-Code, Datamatrix and PDF-417) can also be used to store binary data. This article explains how to get at the binary data using the Softek Barcode Reader Toolkit. 2-D barcodes don’t have any way of telling the barcode reader how they’ve been encoded so it’s not possible to automatically tell whether they represent a string (say of UTF-8 data) or binary data.<\/p>\n
You can access the binary data in a 2-D barcode using the GetRawBarString or GetRawBarStringBytes<\/strong> functions rather than the GetBarString function.<\/p>\n Important note<\/strong>: Do not change the default value of the Encoding property if you are going to use this function.<\/p>\n C++<\/strong><\/p>\n int __stdcall mtGetRawBarString (HANDLE hBarcode, short index, LPSTR pBarCode, int length)<\/p>\n Example:<\/p>\n … C#<\/strong><\/p>\n byte[] GetRawBarStringBytes(int nBarcode)<\/p>\n Example:<\/p>\n … Most barcodes store text information but 2-D barcodes (such as QR-Code, Datamatrix and PDF-417) can also be used to store binary data. This article explains how to get at the binary data using the Softek Barcode Reader Toolkit. 2-D barcodes don’t have any way of telling the barcode reader how they’ve been encoded so it’s<\/p>\n
\nint n = mtScanBarCode(hBarcode, filePath);
\nfor (int i = 1; i <= n; i++)
\n{
\nchar data[BUFSIZ];
\nint l = mtGetRawBarString(hBarcode, i, data, BUFSIZ);
\n…
\n}<\/p>\n
\nint n = barcode.ScanBarCode(FilePath.Text);
\nfor (int i = 1; i <= nBarCode; i++)
\n{
\nbyte[] b = barcode.GetRawBarStringBytes(i);
\n}<\/p>\n","protected":false},"excerpt":{"rendered":"