public void Connect(String IP, Int32 port)
{
if (Globals.IPAddr != null)
{
try
{
client = new TcpClient {
SendTimeout = 1000
};
client.Connect(IP, port);
stream = client.GetStream();
}
catch (SocketException ex)
{
LogBOX.AppendText(ex.Message);
LogBOX.AppendText(Environment.NewLine);
}
finally
{
SafeInvoke(Eng_L, () => { Eng_L.Value = 0; });
SafeInvoke(Eng_R, () => { Eng_R.Value = 0; });
}
}
else
{
LogBOX.AppendText("Enter IP Address first.");
LogBOX.AppendText(Environment.NewLine);
}
}
// Wysylanie i odbieranie ramek
private string SendReceive(string msg)
{
try
{
byte[] msg_s = Encoding.ASCII.GetBytes(msg);
stream.Write(msg_s, 0, msg_s.Length);
String response = String.Empty;
Byte[] msg_r = new Byte[28];
Int32 bytes = stream.Read(msg_r, 0, msg_r.Length);
response = Encoding.ASCII.GetString(msg_r, 0, msg_r.Length);
return(response);
}
catch (System.IO.IOException)
{;
SafeInvoke(LogBOX, () => { LogBOX.AppendText("Connection interrupted."); LogBOX.AppendText(Environment.NewLine); });
client.Close();
stream.Close();
client.Dispose();
stream.Dispose();
Timer1.Stop();
return(String.Empty); }
catch (ObjectDisposedException)
{
SafeInvoke(LogBOX, () => { LogBOX.AppendText("Connection interrupted."); LogBOX.AppendText(Environment.NewLine); });
client.Close();
stream.Close();
client.Dispose();
stream.Dispose();
Timer1.Stop();
return(String.Empty);
}
}
private void Disconnect()
{
if (IsConnected() == true)
{
Timer1.Stop();
client.Close();
stream.Close();
client.Dispose();
stream.Dispose();
}
else
{
LogBOX.AppendText("Not connected.");
LogBOX.AppendText(Environment.NewLine);
}
}
private void BTNConnect_Click(object sender, EventArgs e)
{
Globals.IPAddr = IPBox.Text;
if (IsConnected() == true)
{
LogBOX.AppendText("Disconnect before trying to connect again.");
LogBOX.AppendText(Environment.NewLine);
}
else
{
if (IPBox.Text != "")
{
Connect(Globals.IPAddr, Globals.port);
IsConnected();
}
else
{
LogBOX.AppendText("Error. Make sure you entered proper IP address and host is reachable.");
LogBOX.AppendText(Environment.NewLine);
}
}
}
private void UpdateUI()
{
SafeInvoke(LogBOX, () => { LogBOX.AppendText(Globals.ResponseString); LogBOX.AppendText(Environment.NewLine); });
if (Globals.msg_buffer_r.Length == 28 && Globals.msg_buffer_r.Substring(0, 3) == "[00" & Globals.msg_buffer_r.Substring(27, 1) == "]")
{
try
{
SafeInvoke(RStatus, () => { RStatus.Text = "Status: " + Globals.msg_buffer_r.Substring(1, 2); });
SafeInvoke(BatteryLevel, () => { BatteryLevel.Value = Convert.ToUInt16(Globals.msg_buffer_r.Substring(3, 4), 16); });
SafeInvoke(Sensor1, () => { if (Convert.ToUInt16(Globals.msg_buffer_r.Substring(7, 4), 16) >= 53255)
{
Sensor1.Value = Sensor1.Maximum;
}
else
{
Sensor1.Value = Convert.ToUInt16(Globals.msg_buffer_r.Substring(7, 4), 16);
}; });
SafeInvoke(Sensor2, () => { if (Convert.ToUInt16(Globals.msg_buffer_r.Substring(11, 4), 16) >= 53255)
{
Sensor2.Value = Sensor2.Maximum;
}
else
{
Sensor2.Value = Convert.ToUInt16(Globals.msg_buffer_r.Substring(11, 4), 16);
}; });
SafeInvoke(Sensor3, () => { if (Convert.ToUInt16(Globals.msg_buffer_r.Substring(15, 4), 16) >= 53255)
{
Sensor3.Value = Sensor3.Maximum;
}
else
{
Sensor3.Value = Convert.ToUInt16(Globals.msg_buffer_r.Substring(15, 4), 16);
}; });
SafeInvoke(Sensor4, () => { if (Convert.ToUInt16(Globals.msg_buffer_r.Substring(19, 4), 16) >= 53255)
{
Sensor4.Value = Sensor4.Maximum;
}
else
{
Sensor4.Value = Convert.ToUInt16(Globals.msg_buffer_r.Substring(19, 4), 16);
}; });
SafeInvoke(Sensor5, () => { if (Convert.ToUInt16(Globals.msg_buffer_r.Substring(23, 4), 16) >= 53255)
{
Sensor5.Value = Sensor5.Maximum;
}
else
{
Sensor5.Value = Convert.ToUInt16(Globals.msg_buffer_r.Substring(23, 4), 16);
}; });
}
catch (FormatException)
{
SafeInvoke(LogBOX, () => { LogBOX.AppendText("Invalid response, can't update UI controls."); LogBOX.AppendText(Environment.NewLine); });
}
catch (ArgumentOutOfRangeException)
{
//SafeInvoke(Sensor1, () => { Sensor1.Value = 20000; });
//SafeInvoke(Sensor2, () => { Sensor2.Value = 20000; });
//SafeInvoke(Sensor3, () => { Sensor3.Value = 20000; });
//SafeInvoke(Sensor4, () => { Sensor4.Value = 20000; });
//SafeInvoke(Sensor5, () => { Sensor5.Value = 20000; });
}
}
else
{
SafeInvoke(LogBOX, () => { LogBOX.AppendText("Invalid response, can't update UI controls."); LogBOX.AppendText(Environment.NewLine); });
}
}
