getvol.cs

我自己开发的双色球预测软件

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

namespace cpzh
{
    #region how use this?
    /*
        string sVol = getvol.GetVolOf("C");
    */
    #endregion

    class GetVol
    {        
        [DllImport("kernel32.dll")]
        private static extern int GetVolumeInformation(
        string lpRootPathName,
        string lpVolumeNameBuffer,
        int nVolumeNameSize,
        ref int lpVolumeSerialNumber,
        int lpMaximumComponentLength,
        int lpFileSystemFlags,
        string lpFileSystemNameBuffer,
        int nFileSystemNameSize
        );

        public static string GetVolOf(string drvID){
            const int MAX_FILENAME_LEN = 256;
            int retVal = 0;
            int a =0;
            int b =0;
            string str1 = null;
            string str2 = null;

            int i = GetVolumeInformation(
                drvID + @":\",
                str1,
                MAX_FILENAME_LEN,
                ref retVal,
                a,
                b,
                str2,
                MAX_FILENAME_LEN
            );

            return retVal.ToString("x");
        }

    }
}