我正在开发一个WinCE应用程序（.Net 3.5），它允许通过TCPIP，串行端口和USB连接到终端。
TCPIP和串行端口已完成，但USB存在问题。由于客户端需要查看USB上的证据，我们需要证明我们可以通过ActiveSync发送Hex命令。
我已经谷歌了一段时间，发现ActiveSync / WMDC将提供IP以允许彼此连接。问题是我无法通过ActiveSync / WMDC ping或通过C＃套接字从PC连接到WinCE。
我唯一知道的是，连接到PC时我的WinCE IP是：
IP地址：192.168.55.101
子网掩码：255.255.255.0
默认网关：192.168.55.100
主DNS：127.0.0.1
以下是我用于允许ActiveSync的所有连接的WinCE服务器代码。我正在重用我的TCPIP代码连接到ActiveSync。
_listener.Bind(new IPEndPoint(IPAddress.Any, _port));
_listener.Listen(100);
_listener.BeginAccept(ConnectionReady, null);
有什么我错过了允许彼此联系？提前谢谢。
答案 0 :(得分：2)
它似乎是可行的但不是直截了当的。
通常我们将PC设置为Server而WinCE为Slave。在这种情况下，它是向后的。 WinCE将成为主机，而PC将成为奴隶。
以下是我用于声明和启动连接的代码：
private void SetUSBSerialPort()
{
try
{
usbSerialPort = new USBSerialPort(config.terminal_tcpip_port);
usbSerialPort.OnReceiveData += new USBSerialPort.EventOnReceiveData(usbSerialPort_OnReceiveData);
usbSerialPort.Start();
}
catch (Exception ex)
{
}
}
以下是我用来通过ActiveSync连接PC和WinCE的类：
public class ConnectionStateUSB
{
internal Socket _conn;
//internal TcpServiceProvider _provider;
internal byte[] _buffer;
/// <SUMMARY>
/// Tells you the IP Address of the remote host.
/// </SUMMARY>
public EndPoint RemoteEndPoint
{
get { return _conn.RemoteEndPoint; }
}
/// <SUMMARY>
/// Returns the number of bytes waiting to be read.
/// </SUMMARY>
public int AvailableData
{
get { return _conn.Available; }
}
/// <SUMMARY>
/// Tells you if the socket is connected.
/// </SUMMARY>
public bool Connected
{
get { return _conn.Connected; }
}
/// <SUMMARY>
/// Reads data on the socket, returns the number of bytes read.
/// </SUMMARY>
public int Read(byte[] buffer, int offset, int count)
{
try
{
if (_conn.Available > 0)
return _conn.Receive(buffer, offset, count, SocketFlags.None);
else return 0;
}
catch
{
return 0;
}
}
/// <SUMMARY>
/// Sends Data to the remote host.
/// </SUMMARY>
public bool Write(byte[] buffer, int offset, int count)
{
try
{
_conn.Send(buffer, offset, count, SocketFlags.None);
return true;
}
catch
{
return false;
}
}
/// <SUMMARY>
/// Ends connection with the remote host.
/// </SUMMARY>
public void EndConnection()
{
if (_conn != null && _conn.Connected)
{
_conn.Shutdown(SocketShutdown.Both);
_conn.Close();
}
}
}
class USBSerialPort
{
Socket newsock;
Socket client;
int port;
IPAddress ipaddress;
private AsyncCallback ConnectionReady;
private AsyncCallback AcceptConnection;
private AsyncCallback ReceivedDataReady;
private ConnectionStateUSB currentST;
public bool IsConnected = false;
public USBSerialPort(int _port)
{
port = _port;
//ConnectionReady = new AsyncCallback(ConnectionReady_Handler);
//AcceptConnection = new AsyncCallback(AcceptConnection_Handler);
//ReceivedDataReady = new AsyncCallback(ReceivedDataReady_Handler);
}
public void Start()
{
try
{
ipaddress = Dns.GetHostEntry("ppp_peer").AddressList[0];
newsock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint iep = new IPEndPoint(ipaddress, port);
newsock.BeginConnect(iep, new AsyncCallback(Connected), newsock);
}
catch (Exception ex)
{
throw ex;
this.Stop();
}
finally
{
//net_stream = null;
//tcp_client = null;
}
}
void Connected(IAsyncResult iar)
{
try
{
client = (Socket)iar.AsyncState;
client.EndConnect(iar);
ConnectionStateUSB st = new ConnectionStateUSB();
st._conn = client;
st._buffer = new byte[4];
//Queue the rest of the job to be executed latter
//ThreadPool.QueueUserWorkItem(AcceptConnection, st);
currentST = st;
//conStatus.Text = "Connected to: " + client.RemoteEndPoint.ToString();
if (client.Connected)
client.BeginReceive(st._buffer, 0, 0, SocketFlags.None,
new AsyncCallback(ReceiveData), st);
}
catch (SocketException e)
{
IsConnected = false;
//conStatus.Text = "Error connecting";
}
catch (Exception ex)
{
IsConnected = false;
}
}
void ReceiveData(IAsyncResult iar)
{
try
{
ConnectionStateUSB remote = (ConnectionStateUSB)iar.AsyncState;
remote._conn.EndReceive(iar);
try
{
this.OnReceiveData(remote);
IsConnected = true;
}
catch (Exception ex)
{
IsConnected = false;
}
//int recv = remote.EndReceive(iar);
//string stringData = Encoding.ASCII.GetString(data, 0, recv);
//results.Items.Add(stringData);
if (remote.Connected)
remote._conn.BeginReceive(remote._buffer, 0, 0, SocketFlags.None,
new AsyncCallback(ReceiveData), remote);
}
catch (Exception ex)
{
this.Stop();
}
}
public void SendData(byte[] data)
{
try
{
bool a = currentST.Write(data, 0, data.Length);
}
catch (Exception ex)
{
IsConnected = false;
MessageBox.Show("Error!\n" + ex.Message + "\n" + ex.StackTrace);
}
}
public void SendData(string data)
{
try
{
byte[] msg = Encoding.UTF8.GetBytes(data + Convert.ToChar(Convert.ToByte(3)));
bool a = currentST.Write(msg, 0, msg.Length);
msg = null;
}
catch (Exception ex)
{
IsConnected = false;
MessageBox.Show("Error!\n" + ex.Message + "\n" + ex.StackTrace);
}
}
/// <SUMMARY>
/// Shutsdown the server
/// </SUMMARY>
public void Stop()
{
//lock (this)
//{
if (newsock != null)
newsock.Close();
if (client != null)
client.Close();
if (currentST != null)
{
currentST._conn.Close();
currentST = null;
}
IsConnected = false;
//}
}
/// <SUMMARY>
/// Gets executed when the server accepts a new connection.
/// </SUMMARY>
public delegate void EventOnAcceptConnection(ConnectionStateUSB socket);
public event EventOnAcceptConnection OnAcceptConnection;
/// <SUMMARY>
/// Gets executed when the server detects incoming data.
/// This method is called only if OnAcceptConnection has already finished.
/// </SUMMARY>
public delegate void EventOnReceiveData(ConnectionStateUSB socket);
public event EventOnReceiveData OnReceiveData;
/// <SUMMARY>
/// Gets executed when the server needs to shutdown the connection.
/// </SUMMARY>
public delegate void EventOnDropConnection(ConnectionStateUSB socket);
public event EventOnDropConnection OnDropConnection;
}
希望得到这个帮助。