IsSupported() [3/3]

static bool System.Net.SocketProtocolSupportPal.IsSupported ( AddressFamily af )

inlinestaticprivate

Definition at line 35 of file SocketProtocolSupportPal.cs.

    {
        global::Interop.Winsock.EnsureInitialized();
        IntPtr intPtr = (IntPtr)(-1);
        IntPtr intPtr2 = intPtr;
        try
        {
            intPtr2 = global::Interop.Winsock.WSASocketW(af, SocketType.Stream, 0, IntPtr.Zero, 0, 128);
            return intPtr2 != intPtr || Marshal.GetLastWin32Error() != 10047;
        }
        finally
        {
            if (intPtr2 != intPtr)
            {
                global::Interop.Winsock.closesocket(intPtr2);
            }
        }
    }

References System.Runtime.InteropServices.Marshal.GetLastWin32Error(), and System.IntPtr.Zero.