识别分区属于哪个硬件设备

 

m_dir = "" ;
    CHAR  * buf = new   char [ 100 ];
     char  drs[ 26 ];
    GetLogicalDriveStrings( 50 ,buf);

     int  i = 0 ;
     while  ( * buf)  {
        drs[i]=*buf;
        while(*buf!='\0')buf++;
        buf++;
        i++;
        
    }
     for  ( int  j = 0 ;j < i;j ++ )
     {
        CString path;
        path.Format("\\\\.\\%c:",drs[j]);
        HANDLE hdev= CreateFile(path,GENERIC_READ |  GENERIC_WRITE,
            FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,
            OPEN_EXISTING,
            0,0);
        int er=GetLastError();
        VOLUME_DISK_EXTENTS st={0};
        DWORD outsize;
        DeviceIoControl(hdev,
            IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS,
            NULL,0,
            &st,sizeof(VOLUME_DISK_EXTENTS),&outsize,NULL);
        
        
        CString num;
        num.Format("%c [%d] %d\r\n",drs[j],st.Extents[0].DiskNumber,st.NumberOfDiskExtents);
        m_dir=m_dir+num;
    }
    UpdateData( false );

http://files.cnblogs.com/ahuo/DriversInfo.rar