AxSerial 5.1.1.5031

ActiveXperts Serial Port Component is a Serial Port Communication component for Windows developers.

• Easy to use API
• Control devices over a serial port
• Single DLL, 64-bit and 32-bit
• Samples available in C#, VB, ASP.NET, HTML, PHP, Javascript, Delphi and more

How to use

Find the online manual here

Or download the full package which includes a number of working examples for C#, VB.Net, ASP.NET, C++, etc.. here: ActiveXperts Download Area

Simple C# code sample to open a connection to a device and send commands and receive reponses

using System; using System.Collections.Generic; using System.Text; using System.IO; using AxSerial;

namespace QueryDevice { class Program { static void Main(string[] args) { ComPort objComport = new ComPort(); string strBaudRate = "";

  // ComPort: Clear (good practise)
  objComport.Clear();

  // A license key is required to unlock this component after the trial period has expired.
  // Assign the LicenseKey property every time a new instance of this component is created (see code below). 
  // Alternatively, the LicenseKey property can be set automatically. This requires the license key to be stored in the registry.
  // For details, see manual, chapter "Product Activation".
  /*
  objComport.LicenseKey = "XXXXX-XXXXX-XXXXX";
  */

  Console.WriteLine("ActiveXperts Serial Port Component {0}\nBuild: {1}\nModule: {2}\nLicense Status: {3}\nLicense Key: {4}\n", objComport.Version, objComport.Build, objComport.Module, objComport.LicenseStatus, objComport.LicenseKey);

  // Set Logfile (optional, for debugging purposes)
  objComport.LogFile = Path.GetTempPath() + "SerialPort.log";
  Console.WriteLine("Log file used: {0}\n", objComport.LogFile);

  objComport.Device = AskDevice( objComport );

  // If a direct port is used, query for the baudrate
  if( objComport.Device.Substring( 0, 3 ) == "COM" )
  {
    strBaudRate = Ask( "Enter baudrate (empty string means: default baudrate):", true );
    if( strBaudRate == "" ) 
      strBaudRate = "0";

    objComport.BaudRate = System.Int32.Parse( strBaudRate );
  }

  objComport.Open();
  Console.WriteLine("Open, result: " + objComport.LastError + " (" + objComport.GetErrorDescription(objComport.LastError) + ")");
  if( objComport.LastError == 0 )
  {
    // Set all Read functions (e.g. ReadString) to timeout after a specified number of millisconds
    objComport.ComTimeout = 1000;  // Timeout after 1000msecs        

    ReadResponse( objComport );
    while( WriteCommand( objComport ) )
    {
      ReadResponse( objComport );
    }
    objComport.Close();
    Console.WriteLine("Close, result: " + objComport.LastError + " (" + objComport.GetErrorDescription(objComport.LastError) + ")");
  }

  Console.WriteLine("Ready.");		
  System.Threading.Thread.Sleep(3000); // Sleep for 3 second before exit
}

static private string AskDevice(AxSerial.ComPort objComport)
{
  String strInput = "", strDevice = "";
  System.Int32 i, j;

  Console.WriteLine("Select a device: ");
  for (i = 0; i < objComport.GetDeviceCount(); i++)
  {
    Console.WriteLine("  " + i.ToString() + ": " + objComport.GetDeviceName(i).ToString());
  }
  for (j = 0; j < objComport.GetPortCount(); j++)
  {
    Console.WriteLine("  " + (i + j).ToString() + ": " + objComport.GetPortName(j).ToString());
  }

  while (strDevice == "")
  {
    Console.Write("  > ");
    strInput = Console.ReadLine();
    if ((System.Int32.Parse(strInput) < i))
      strDevice = objComport.GetDeviceName(System.Int32.Parse(strInput));
    else if (System.Int32.Parse(strInput) < i + j)
      strDevice = objComport.GetPortName(System.Int32.Parse(strInput) - i);
  }
  Console.WriteLine("  Selected device: " + strDevice + "\r\n");
  return strDevice;
}

static private string Ask(string strTitle, bool bAllowEmpty)
{
  String strInput, strReturn = "";

  Console.WriteLine(strTitle);
  do
  {
    Console.Write("  > ");
    strInput = Console.ReadLine();
    if (strInput.Length > 1)
      strReturn = strInput;
  } while (strReturn == "" && !bAllowEmpty);
  return strReturn;
}

static private void ReadResponse(AxSerial.ComPort objComport)
{
  string str;

  str = "notempty";
  objComport.Sleep(200);
  while (str != "")
  {
    str = objComport.ReadString();
    if (str != "")
      Console.WriteLine("  <- " + str);
  }
}

static private bool WriteCommand(AxSerial.ComPort objComport)
{
  string str;

  Console.Write("Enter command (enter QUIT to stop the program):\r\n  > ");
  str = Console.ReadLine();
  objComport.WriteString(str);
  return str.ToLower() != "quit";
}

} }

Support

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Pricing and purchasing

This product is a fully functional 30 day trail.

Find more information about pricing and how to purchase or our sales page: ActiveXperts Customer Services