ReadPrinter Status C++ and ESC/P

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I'm having trouble using the C ++ ReadPrinter function. I'm communicating with a printer and I need to get the status and code return from it. I'm always getting a value of 0.

The code I am using:

DWORD dwBytesRead = 0;
unsigned char buffer2[100];


if (!ReadPrinter(hPrinter, buffer2, 100, &dwBytesRead))
{
    std::cout << "Fail to read! " << GetLastError() << std::endl;
    return FALSE;
}
else {
    std::cout << "Messadge from the bottle xD^ " << buffer2 << std::endl;
}

And I also used the code below and I have the same problem.

if (!GetPrinter(hPrinter, 2, (LPBYTE)pPrnInfo2, dwSize, &dwSize))
{
    ClosePrinter(hPrinter);
    free(pPrnInfo2);
    return FALSE; // Error
}

pPrnInfo2 is NULL.

The printer has bi-directional support.

Tks for support! :)

Att, Damiana

asked 9 secs ago

Damiana

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ReadPrinter Status C++ and ESC/P