如何通过C#获取网络打印机的MAC地址? [英] How can I get the MAC address of network printer via C#?

问题描述

我想获取一个Intermec条码打印机的标识符，它使用网络接口，所以我想到了MAC地址.如何通过C#获取MAC地址?或者我可以直接获得打印机的序列号?

I wanna get the identifier of a Intermec barcode printer, it uses network interface, so I think of MAC address. How can I get the MAC address via C#? Or I can get the serial number of the printer directly?

推荐答案

我假设您具有网络打印机的IP地址，并且您的PC和打印​​机位于同一局域网中.您可以尝试一下该程序.

I am assuming that you have the IP address of the network printer and your pc and the printer are at the same local network. You can give this program a try.

    static void Main(string[] args)
    {
        PhysicalAddress pa = LocateMacAddress(IPAddress.Parse("172.16.0.99"));
        Console.WriteLine(pa.ToString());
        Console.ReadKey();
    }
    static PhysicalAddress LocateMacAddress(IPAddress ipAddress)
    {
        if (ipAddress.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
        {
            byte[] macAddressBytes = new byte[6];
            int length = macAddressBytes.Length;
            ArpErrorCodes c = (ArpErrorCodes)SendARP((uint)ipAddress.Address, 0, macAddressBytes, ref length);
            if (c == ArpErrorCodes.None)
            {
                return new PhysicalAddress(macAddressBytes);
            }
        }
        return PhysicalAddress.None;
    }

    [DllImport("iphlpapi.dll", ExactSpelling = true)]
    public static extern int SendARP(uint DestIP, uint SrcIP, [Out] byte[] pMacAddr, ref int PhyAddrLen);

}

enum ArpErrorCodes
{
    None = 0,
    ERROR_GEN_FAILURE = 31,
    ERROR_NOT_SUPPORTED = 50,
    ERROR_BAD_NET_NAME = 67,
    ERROR_BUFFER_OVERFLOW = 111,
    ERROR_NOT_FOUND = 1168,
    ERROR_INVALID_USER_BUFFER = 1784,
}

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