How to detect USB overcurrent in C#?

Question

Hi,

I dig the whole internet and I can't find the answer to how to detect USB device overcurrent? I want to display it in textBox with a USB device name or Hub name where the overcurrent occurs. I'm interested only in c#.

Answer 1

@MateoProgramistaZaDyche , you could try to use WMI to detect the USB device when the USB device is inserted in your computer.

Here is a code example you could refer to.

using System.Management;  
  public Form1()  
        {  
            InitializeComponent();  
            backgroundWorker1.RunWorkerAsync();  
            TextBox.CheckForIllegalCrossThreadCalls = false;  
        }  
 private void Watcher_EventArrived(object sender, EventArrivedEventArgs e)  
        {  
            ManagementBaseObject instance = (ManagementBaseObject)e.NewEvent["TargetInstance"];  
            string result = "Device Name is " + instance.Properties["Name"].Value.ToString();  
            textBox1.Text = result;  
            Console.WriteLine("inserted");  
        }  
  
        private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)  
        {  
            ManagementEventWatcher watcher = new ManagementEventWatcher();  
            WqlEventQuery query = new WqlEventQuery("SELECT * FROM __InstanceCreationEvent WITHIN 2 WHERE TargetInstance ISA 'Win32_USBHub'");  
            watcher.EventArrived += Watcher_EventArrived;  
            watcher.Query = query;  
            watcher.Start();  
            watcher.WaitForNextEvent();  
        }  

Based on my test, I could detect the mouse and keyboard USB Device when I inserted the device to the computer.

---

If the response is helpful, please click "Accept Answer" and upvote it.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.