C# 获取USB设备列表

窗体设计及运行效果图

添加CyUSB.dll引用（如果需要识别由CyUSB.sys提供设备驱动的USB设备）

源码：

 public partial class Form1 : Form
    {
        USBDeviceList usbDevices;
        CyUSBDevice myDevice; 

        public Form1()
        {
            InitializeComponent();

            //CyConst.DEVICES_CYUSB——由CyUSB.sys提供设备驱动的USB设备

            //CyConst.DEVICES_HID——USB人机接口设备（如键盘、鼠标）

            //CyConst.DEVICES_MSC——USB大容量存储类设备（如U盘、移动硬盘）
            usbDevices = new USBDeviceList(CyConst.DEVICES_CYUSB|CyConst.DEVICES_HID|CyConst.DEVICES_MSC);

            usbDevices.DeviceAttached += new EventHandler(usbDevices_DeviceAttached);
            usbDevices.DeviceRemoved += new EventHandler(usbDevices_DeviceRemoved);

            myDevice = usbDevices[0] as CyUSBDevice;
            if (myDevice != null)
                toolStripStatusLabel1.Text = myDevice.FriendlyName + " connected.";
            for(int i=0;i<usbDevices.Count;i++)
            {
                listBox1.Items.Add(usbDevices[i]);
            }
            
        }

        /*Summary
        This is the event handler for Device removal 
       */
        void usbDevices_DeviceRemoved(object sender, EventArgs e)
        {
            USBEventArgs usbEvent = e as USBEventArgs;

            toolStripStatusLabel1.Text = usbEvent.FriendlyName + " removed.";
        }

        /*Summary
         This is the event handler for Device attachment
        */
        void usbDevices_DeviceAttached(object sender, EventArgs e)
        {
            USBEventArgs usbEvent = e as USBEventArgs;

            toolStripStatusLabel1.Text = usbEvent.Device.FriendlyName + " connected.";
        }

        /*Summary
        Executes on closing the form. This method in turn calls the dispose() method to dispose or clear all the resources allocated.
         */
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (usbDevices != null)
                usbDevices.Dispose();
        }
    }