windows c# find com port of usb serial device

Blue Baboon answered on September 8, 2024 Popularity 9/10 Helpfulness 1/10

answer windows c# find com port of usb serial device

related laravel constrained meaning

windows c# find com port of usb serial device

Comment

using System.Management;
using Microsoft.Win32;

using (ManagementClass i_Entity = new ManagementClass("Win32_PnPEntity"))
{
    const String CUR_CTRL = "HKEY_LOCAL_MACHINE\\System\\CurrentControlSet\\";

    foreach (ManagementObject i_Inst in i_Entity.GetInstances())
    {
        Object o_Guid = i_Inst.GetPropertyValue("ClassGuid");
        if (o_Guid == null || o_Guid.ToString().ToUpper() != "{4D36E978-E325-11CE-BFC1-08002BE10318}")
            continue; // Skip all devices except device class "PORTS"

        String s_Caption  = i_Inst.GetPropertyValue("Caption")     .ToString();
        String s_Manufact = i_Inst.GetPropertyValue("Manufacturer").ToString();
        String s_DeviceID = i_Inst.GetPropertyValue("PnpDeviceID") .ToString();
        String s_RegEnum  = CUR_CTRL + "Enum\\" + s_DeviceID + "\\Device Parameters";
        String s_RegServ  = CUR_CTRL + "Services\\BTHPORT\\Parameters\\Devices\\";
        String s_PortName = Registry.GetValue(s_RegEnum, "PortName", "").ToString();
        String s_BT_Dir   = null; // Bluetooth port direction
        String s_BT_Dev   = "";   // Bluetooth paired device name
        String s_BT_MAC   = "";   // Bluetooth paired device MAC address

        int s32_Pos = s_Caption.IndexOf(" (COM");
        if (s32_Pos > 0) // remove COM port from description
            s_Caption = s_Caption.Substring(0, s32_Pos);

        Console.WriteLine("Port Name:      " + s_PortName);
        Console.WriteLine("Description:    " + s_Caption);
        Console.WriteLine("Manufacturer:   " + s_Manufact);
        Console.WriteLine("Device ID:      " + s_DeviceID);

        if (s_DeviceID.StartsWith("BTHENUM\\")) // Bluetooth
        {
            s_BT_Dir = "Incoming";

            // "{00001101-0000-1000-8000-00805f9b34fb}#7445CEA614BC_C00000000"
            String s_UniqueID = Registry.GetValue(s_RegEnum, "Bluetooth_UniqueID", "").ToString();

            String[] s_Split = s_UniqueID.Split('#');
            if (s_Split.Length == 2)
            {
                s_Split = s_Split[1].Split('_');

                // Ignore MAC = "000000000000"
                if (s_Split.Length == 2 && s_Split[0].Trim('0').Length > 0) 
                {
                    s_BT_MAC = s_Split[0]; // 12 digits: "7445CEA614BC"
                    s_BT_Dir = "Outgoing";

                    // Read the Bluetooth device that is paired with the COM port.
                    Object o_BtDevice = Registry.GetValue(s_RegServ + s_BT_MAC, "Name", null);
                    if (o_BtDevice is Byte[])
                        s_BT_Dev = Encoding.UTF8.GetString((Byte[])o_BtDevice);
                }
            }

            Console.WriteLine("Port Direction: " + s_BT_Dir);
            Console.WriteLine("Paired Device:  " + s_BT_Dev);
            Console.WriteLine("Device MAC Adr: " + s_BT_MAC);
        }

        Console.WriteLine("-----------------------------------");
    }
}

Popularity 9/10 Helpfulness 1/10 Language csharp

Source: stackoverflow.com

Tags: c# com-port device find usb windows

Link to this answer
Share Copy Link

Contributed on Sep 08 2024

Blue Baboon

0 Answers Avg Quality 2/10

Closely Related Answers

laravel constrained meaning

Comment

Constrained is used to name foreign key column names 
that are based on the related table.
(e.g., user_id for the users table):
$table->foreignId('user_id')->constrained();

Popularity 1/10 Helpfulness 1/10 Language php

Source: Grepper

Tags: laravel php

Link to this answer
Share Copy Link

Contributed on Sep 08 2024

Dev Pav

0 Answers Avg Quality 2/10

windows c# find com port of usb serial device

Contents

More Related Answers

windows c# find com port of usb serial device

Closely Related Answers

laravel constrained meaning

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.