C# 调用 WlanAPI的问题

  [DllImport("wlanapi.dll")]
        public static extern int WlanConnect(
            [In] IntPtr clientHandle,
            [In, MarshalAs(UnmanagedType.LPStruct)] Guid interfaceGuid,
            [In] ref WlanConnectionParameters connectionParameters,
            IntPtr pReserved);
           

想知道怎么可以调用成功

 //断开网络
    public void Disconnect()
    {
    IntPtr _clientHandle = whc.WlanOpenHandle(1);
    NetworkInterface[] _interface = NetworkInterface.GetAllNetworkInterfaces();
    Guid netIfaceGuid = new Guid(_interface[0].Id);
    WlanDisconnect(_clientHandle, netIfaceGuid, IntPtr.Zero);
    whc.WlanCloseHandle(_clientHandle);

    }
    //断开网络
    public void Disconnect(NetworkInterface _interface)
    {
    IntPtr _clientHandle = whc.WlanOpenHandle(1);
    Guid netIfaceGuid = new Guid(_interface.Id);
    WlanDisconnect(_clientHandle, netIfaceGuid, IntPtr.Zero);
    whc.WlanCloseHandle(_clientHandle);

    }