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using System;
using System.Collections.Generic;
using System.Linq;
using System.Management;
using System.Text;
using System.Threading.Tasks;
namespace Tango.Transport.Components
{
public static class ComPortEnumerator
{
private class ProcessConnection
{
public static ConnectionOptions ProcessConnectionOptions()
{
ConnectionOptions options = new ConnectionOptions();
options.Impersonation = ImpersonationLevel.Impersonate;
options.Authentication = AuthenticationLevel.Default;
options.EnablePrivileges = true;
return options;
}
public static ManagementScope ConnectionScope(string machineName, ConnectionOptions options, string path)
{
ManagementScope connectScope = new ManagementScope();
connectScope.Path = new ManagementPath(@"\\" + machineName + path);
connectScope.Options = options;
connectScope.Connect();
return connectScope;
}
}
public class ComPortInfo
{
public string Port { get; set; }
public string Description { get; set; }
public override string ToString()
{
return String.Format("{0}, {1}", Port, Description);
}
}
public static List<ComPortInfo> EnumerateComPorts()
{
List<ComPortInfo> comPortInfoList = new List<ComPortInfo>();
ConnectionOptions options = ProcessConnection.ProcessConnectionOptions();
ManagementScope connectionScope = ProcessConnection.ConnectionScope(Environment.MachineName, options, @"\root\CIMV2");
ObjectQuery objectQuery = new ObjectQuery("SELECT * FROM Win32_PnPEntity WHERE ConfigManagerErrorCode = 0");
ManagementObjectSearcher comPortSearcher = new ManagementObjectSearcher(connectionScope, objectQuery);
using (comPortSearcher)
{
string caption = null;
foreach (ManagementObject obj in comPortSearcher.Get())
{
if (obj != null)
{
object captionObj = obj["Caption"];
if (captionObj != null)
{
caption = captionObj.ToString();
if (caption.Contains("(COM"))
{
ComPortInfo comPortInfo = new ComPortInfo();
comPortInfo.Port = caption.Substring(caption.LastIndexOf("(COM")).Replace("(", string.Empty).Replace(")", string.Empty);
comPortInfo.Description = caption;
comPortInfoList.Add(comPortInfo);
}
}
}
}
}
return comPortInfoList;
}
}
}
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