Calling the Linux C Library from C++ code
Here’s a quick example of how to create and build a simple C++ program that calls the basic Bardecode C library functions…
It’s assumed that you have already downloaded the Linux version of our SDK and are working in the installation folder.
The code:
#include
using namespace std;
extern “C” {
#include “include/barcode.h”
}
int main()
{
void *hBarcode = STCreateBarCodeSession();
char **bartype ;
char **barvalue ;
int n = STReadBarCode(hBarcode, (char *) “images/code39_01.tif”, (char *) “tif”, &barvalue, &bartype);
cout << "Return value = " ;
cout << n ;
cout << "\n";
if (n > 0)
{
cout << "First barcode value is ";
cout << barvalue[0];
cout << "\n";
}
return 0 ;
}
The build (you will have to get the path right for the various libraries - we built this on Ubuntu x64):
g++ -o yourcode yourcode.cpp lib/bardecode.a /usr/lib/x86_64-linux-gnu/libtiff.so.5 /usr/lib/x86_64-linux-gnu/libjpeg.so.8 /usr/lib/x86_64-linux-gnu/libpthread.so
