从DeviceNotifyEventArgs获取USB信件

时间:2019-04-01 14:23:56

标签: c# usb cd

我找不到如何提取插入的USB字母。

我有监听USB插入的事件,但是我需要插入的字母,因为我有多个USB端口。

void OnDeviceNotifyEvent(object sender, DeviceNotifyEventArgs e)
{
  MessageBox.Show(e.ToString());
}

打印:

  

[DeviceType:DeviceInterface] [EventType:DeviceArrival]完整名称:U​​SB#VID_2CE3&PID_6487#0000000000000000#{a5dcbf10-6530-11d2-901f-00c04fb951ed}   视频:0x2CE3   编号:0x6487   序列号:0000000000000000   ClassGuid:a5dcbf10-6530-11d2-901f-00c04fb951ed

我正在使用LibUsbDotNet.DeviceNotify dll

例如:插入E:\

1 个答案:

答案 0 :(得分:0)

由于DeviceNotifyEventArgs包含序列号,因此您可以在WMI的帮助下使用它来查找设备字母。

此处是this answer的改编版本:

// enumerate usb drives
foreach (var drive in new ManagementObjectSearcher("select * from Win32_DiskDrive where InterfaceType='USB'").Get())
    // find driver with known serial number
    if ((string)drive.Properties["SerialNumber"].Value == serialNumber)
        // associate partitions with drive
        foreach (var partition in new ManagementObjectSearcher("ASSOCIATORS OF {Win32_DiskDrive.DeviceID='" + drive["DeviceID"] + "'} WHERE AssocClass = Win32_DiskDriveToDiskPartition").Get())
            // associate logical disk with partition
            foreach (var disk in new ManagementObjectSearcher("ASSOCIATORS OF {Win32_DiskPartition.DeviceID='" + partition["DeviceID"] + "'} WHERE AssocClass = Win32_LogicalDiskToPartition").Get())
                Console.WriteLine("Disk=" + disk["Name"]);

请确保将所有内容包装到using中:Get()返回的所有搜索器和集合都必须进行处理。