public Int32 Connect(string sRemoteIP, Int32 iPrinterSN, Int32 iRemotePort = 17888)
{
int iErrCode = 0;
iSN = iPrinterSN;
if (tc == null)
{
tc = new TcpClient();
}
byte[] inValue = new byte[] { 1, 0, 0, 0, 0x88, 0x13, 0, 0, 0xE8, 0x03, 0, 0 };// 首次探测时间5 秒, 间隔侦测时间1 秒
tc.Client.IOControl(IOControlCode.KeepAliveValues, inValue, null);
try
{
tc.Connect(sRemoteIP, iRemotePort);
ns = tc.GetStream();
}
catch (SocketException se)
{
CLog.SaveException("---Tcp Connect---", se.Message);
iErrCode = Constant.ERR_SOCKET_EXCEPTION;
}
catch (Exception e)
{
CLog.SaveException("---Tcp Connect---", e.Message);
iErrCode = Constant.ERR_EXCEPTION;
}
if (tc.Connected)
{
return(Constant.ERR_OK);
}
else
{
return(Constant.ERR_ERROR);
}
}
private void btn_DelLine_Click(object sender, EventArgs e)
{
if (MainTables.SelectedIndex < 0)
{
return;
}
string sLineName = MainTables.TabPages[MainTables.SelectedIndex].Text;
DialogResult rlt = MessageBox.Show("Are you sure delete this product-line[" + sLineName + "]?"
, "", MessageBoxButtons.YesNo);
if (rlt == DialogResult.No)
{
return;
}
MainTables.TabPages.Remove(MainTables.TabPages[MainTables.SelectedIndex]);
LinePageForm lpf = getPage(sLineName);
LineForms.Remove(lpf);
if (MainTables.TabPages.Count == 0)
{
btn_DelLine.Enabled = false;
btn_RenameLine.Enabled = false;
}
else
{
btn_DelLine.Enabled = true;
btn_RenameLine.Enabled = true;
}
createAllLineName();
CLog.SaveLog("Delete line [" + sLineName + "]");
}
void ReciveMsg()
{
receiveEnd = false;
while (true)
{
EndPoint point = new IPEndPoint(IPAddress.Any, 0);//用来保存发送方的ip和端口号
byte[] buffer = new byte[1024];
UdpSkt.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 13000);
int length = 0;
try
{
lock (UdpSkt)
{
length = UdpSkt.ReceiveFrom(buffer, ref point);//接收数据报
}
}
catch (SocketException e)
{
//超时
CLog.SaveException("---UDP Receive---", e.Message);
break;
}
if (length > 0)
{
Int32 isn = buffer[4] + buffer[5] * 256 + buffer[6] * 256 * 256 + buffer[7] * 256 * 256 * 256;
string IPPort = (point as IPEndPoint).ToString();
string[] strArray = IPPort.Split(new Char[] { ':' });
string strIP = strArray[0];//.Substring(1, strArray[0].Length - 2);
lstFind.Add(strIP + "-" + isn.ToString());
//break;
}
}
receiveEnd = true;
}
private void frmMain_FormClosed(object sender, FormClosedEventArgs e)
{
//bCloseListen = true;
CLog.SaveLog("-------------Close-----------");
}