Detect Insertion and Removal of USB Drive C#

Sagar Pardeshi

5 Comments

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Manoj Prabhu10y ago
Private static List<string> GetConnectedUsbDrives() { List<string> usbDriveLetters = new List<string>(); var usbDrives = new ManagementObjectSearcher("SELECT DeviceID FROM Win32_DiskDrive WHERE InterfaceType='USB'"); foreach (ManagementObject drive in usbDrives.Get()) { var partitions = new ManagementObjectSearcher("ASSOCIATORS OF {Win32_DiskDrive.DeviceID='" + drive["DeviceID"].ToString() + "'} WHERE AssocClass = Win32_DiskDriveToDiskPartition"); foreach (var partition in partitions.Get()) { var logicalDrives = new ManagementObjectSearcher("ASSOCIATORS OF {Win32_DiskPartition.DeviceID='" + partition["DeviceID"].ToString() + "'} WHERE AssocClass = Win32_LogicalDiskToPartition"); foreach (var logicalDrive in logicalDrives.Get()) { usbDriveLetters.Add(logicalDrive["Caption"].ToString()); } } } return usbDriveLetters; }
richard payne10y ago
I have tried unsubscribe the event but does not work.
richard payne10y ago
Private void MainProg_FormClosing(object sender, FormClosingEventArgs e) { if (myUSBComm.wUSB != null) { myUSBComm.wUSB.EventArrived -= myUSBComm.USBRemoved; myUSBComm.wUSB.EventArrived -= myUSBComm.USBAdded; myUSBComm.wUSB.Stop(); myUSBComm.wUSB.Dispose(); } myGlobalBase.IsApplicationQuit = true; Thread.Sleep(50); }
richard payne10y ago
I have copied the above into application in VS2015 in C#, which worked very well. The only issue that when I close window while VS2015 is in debug mode, it generate Break report page in VS2015 reporting exception related to above.
Ansari Tahir12y ago
nice...

I have located the following code and have been trying to change this so that I know if the USB device has been inserted or removed.

using System;

using System.Collections.Generic;

using System.Text;

using System.Management;

namespace WMIUSBConsolApplication

{

class Program

{

static void Main(string[] args)

{

AddInsetUSBHandler();

AddRemoveUSBHandler();

for (; ; ) ;

}

static ManagementEventWatcher w = null;

public static void AddRemoveUSBHandler()

{

WqlEventQuery q;

ManagementScope scope = new ManagementScope("root\\CIMV2");

scope.Options.EnablePrivileges = true;

try

{

q = new WqlEventQuery();

q.EventClassName = "__InstanceDeletionEvent";

q.WithinInterval = new TimeSpan(0, 0, 3);

q.Condition = @"TargetInstance ISA 'Win32_USBHub'";

w = new ManagementEventWatcher(scope, q);

w.EventArrived += new EventArrivedEventHandler(USBRemoved);

w.Start();

}

catch (Exception e)

{

Console.WriteLine(e.Message);

if (w != null)

w.Stop();

}

static void AddInsetUSBHandler()

{

WqlEventQuery q;

ManagementScope scope = new ManagementScope("root\\CIMV2");

scope.Options.EnablePrivileges = true;

try

{

q = new WqlEventQuery();

q.EventClassName = "__InstanceCreationEvent";

q.WithinInterval = new TimeSpan(0, 0, 3);

q.Condition = @"TargetInstance ISA 'Win32_USBHub'";

w = new ManagementEventWatcher(scope, q);

w.EventArrived += new EventArrivedEventHandler(USBAdded);

w.Start();

}

catch (Exception e)

{

Console.WriteLine(e.Message);

if (w != null)

w.Stop();

}

public static void USBAdded(object sender, EventArgs e)

{

Console.WriteLine("A USB device inserted");

}

public static void USBRemoved(object sender, EventArgs e)

{

Console.WriteLine("A USB device removed");

}