C#如何实现弹出U盘？

C#如何实现弹出U盘？

需要一个类EjectUsb，然后通过下面的语句就可以实现U盘弹出。

 EjectUsb eju = new EjectUsb(label13.Text);
                    bool result = eju.Eject();
                    if (result)
                      {
                           MessageBox.Show("弹出成功","提示");
                      }
                       else
                      {
                           MessageBox.Show("弹出失败","提示");
                      }

部分代码如下

using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;

namespace USB管理精灵系统
{
    public class EjectUsb
    {
        //返回设备句柄
        [DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Auto)]
        private static extern IntPtr CreateFile(
             string lpFileName,
             uint dwDesiredAccess,
             uint dwShareMode,
             IntPtr SecurityAttributes,
             uint dwCreationDisposition,
             uint dwFlagsAndAttributes,
             IntPtr hTemplateFile
        );
        [DllImport("kernel32.dll", ExactSpelling = true, SetLastError = true, CharSet = CharSet.Auto)]
        private static extern bool DeviceIoControl(
            IntPtr hDevice,
            uint dwIoControlCode,
            IntPtr lpInBuffer,
            uint nInBufferSize,
            IntPtr lpOutBuffer,
            uint nOutBufferSize,
            out uint lpBytesReturned,
            IntPtr lpOverlapped
        );
        [DllImport("kernel32.dll", ExactSpelling = true, SetLastError = true, CharSet = CharSet.Auto)]
        private static extern bool DeviceIoControl(
            IntPtr hDevice,
            uint dwIoControlCode,
            byte[] lpInBuffer,
            uint nInBufferSize,
            IntPtr lpOutBuffer,
            uint nOutBufferSize,
            out uint lpBytesReturned,
            IntPtr lpOverlapped
        );
        *******
}

类EjectUsb的完整代码下载如下