C#如何取硬件标志

public String GetHardDiskID()

{

try

{

ManagementObjectSearcher searcher = new ManagementObjectSearcher("Select * FROM Win32_PhysicalMedia");

String strHardDiskID = null ;

foreach(ManagementObject mo in searcher.Get())

{

strHardDiskID = mo["SerialNumber"].ToString().Trim();

break;

}

return strHardDiskID ;

}

catch

{

return "";

}

}//end

public enum NCBCONST

{

NCBNAMSZ =16, /* absolute length of a net name */

MAX_LANA =254, /* lana's in range 0 to MAX_LANA inclusive */

NCBENUM =0x37, /* NCB ENUMERATE LANA NUMBERS */

NRC_GOODRET =0x00, /* good return */

NCBRESET =0x32, /* NCB RESET */

NCBASTAT =0x33, /* NCB ADAPTER STATUS */

NUM_NAMEBUF =30, /* Number of NAME's BUFFER */