Using DLLs in C++ or VB

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Posted by Robert G Laurin on May 28, 2007 at 11:47:25:

The US Postal Services is introducing a new barcode called the OneCodeSolution. With it there's a need for a new CRC code. They supply us with a CRC 11bit Generator for Frame Check Sequence. That requires us to convert a 31 digits string into a 13 bytes hexstring then into a 102 bits string and do a FCS using a 12 bits Polynominal Generator with an 11 bits Frame Check Sequence lots and lots of XOR).

I tried writing it in IB but kind of gave up...

They do supply a C++ dll source that is barely a page long.

For the light in me, I can't remember how to talk to a dll, can't find the documentation and have no idear how to give it the 31 bytes data and retrieve my 53 characters barcode.

Can anyone point me to sample programs that actually exchange data with a dll?

Any documentation?

Thanks a bunch!

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