вstd::vector<wchar_t> str(1024);
int size = libfptr_get_param_str(fptr, LIBFPTR_PARAM_SERIAL_NUMBER,
&str[0], str.size());
if (size > str.size())
{
    str.resize(size);
libfptr_get_param_str(fptr, LIBFPTR_PARAM_SERIAL_NUMBER, &str[0],
str.size());
}
std::wstring serialNumber = std::wstring(&str[0]);