C#如何取硬件標志的代碼

using System; 
using System.Runtime.InteropServices; 
using System.Management; 
namespace Hardware 
{ 
/// <summary> 
/// Hardware_Mac 的摘要說明。 
/// </summary> 
public class HardwareInfo 
{ 
//取機器名 
public string GetHostName() 
{ 
return System.Net.Dns.GetHostName(); 
} 
//取CPU編號 
public String GetCpuID() 
{ 
try 
{ 
ManagementClass mc = new ManagementClass("Win32_Processor"); 
ManagementObjectCollection moc = mc.GetInstances(); 
String strCpuID = null ; 
foreach( ManagementObject mo in moc ) 
{ 
strCpuID = mo.Properties["ProcessorId"].Value.ToString(); 
break; 
} 
return strCpuID; 
} 
catch 
{ 
return ""; 
} 
}//end method 
//取第一塊硬盤編號 
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 */ 
} 
[StructLayout(LayoutKind.Sequential)] 
public struct ADAPTER_STATUS 
{ 
[MarshalAs(UnmanagedType.ByValArray, SizeConst=6)] 
public byte[] adapter_address; 
public byte rev_major; 
public byte reserved0; 
public byte adapter_type; 
public byte rev_minor; 
public ushort duration; 
public ushort frmr_recv; 
public ushort frmr_xmit; 
public ushort iframe_recv_err; 
public ushort xmit_aborts; 
public uint xmit_success; 
public uint recv_success; 
public ushort iframe_xmit_err; 
public ushort recv_buff_unavail; 
public ushort t1_timeouts; 
public ushort ti_timeouts; 
public uint reserved1; 
public ushort free_ncbs; 
public ushort max_cfg_ncbs; 
public ushort max_ncbs; 
public ushort xmit_buf_unavail; 
public ushort max_dgram_size; 
public ushort pending_sess; 
public ushort max_cfg_sess; 
public ushort max_sess; 
public ushort max_sess_pkt_size; 
public ushort name_count; 
} 
[StructLayout(LayoutKind.Sequential)] 
public struct NAME_BUFFER 
{ 
[MarshalAs(UnmanagedType.ByValArray, SizeConst=(int)NCBCONST.NCBNAMSZ)] 
public byte[] name; 
public byte name_num; 
public byte name_flags; 
} 
[StructLayout(LayoutKind.Sequential)] 
public struct NCB 
{ 
public byte ncb_command; 
public byte ncb_retcode; 
public byte ncb_lsn; 
public byte ncb_num; 
public IntPtr ncb_buffer; 
public ushort ncb_length; 
[MarshalAs(UnmanagedType.ByValArray, SizeConst=(int)NCBCONST.NCBNAMSZ)] 
public byte[] ncb_callname; 
[MarshalAs(UnmanagedType.ByValArray, SizeConst=(int)NCBCONST.NCBNAMSZ)] 
public byte[] ncb_name; 
public byte ncb_rto; 
public byte ncb_sto; 
public IntPtr ncb_post; 
public byte ncb_lana_num; 
public byte ncb_cmd_cplt; 
[MarshalAs(UnmanagedType.ByValArray, SizeConst=10)] 
public byte[] ncb_reserve; 
public IntPtr ncb_event; 
} 
[StructLayout(LayoutKind.Sequential)] 
public struct LANA_ENUM 
{ 
public byte length; 
[MarshalAs(UnmanagedType.ByValArray, SizeConst=(int)NCBCONST.MAX_LANA)] 
public byte[] lana; 
} 
[StructLayout(LayoutKind.Auto)] 
public struct ASTAT 
{ 
public ADAPTER_STATUS adapt; 
[MarshalAs(UnmanagedType.ByValArray, SizeConst=(int)NCBCONST.NUM_NAMEBUF)] 
public NAME_BUFFER[] NameBuff; 
} 
public class Win32API 
{ 
[DllImport("NETAPI32.DLL")] 
public static extern char Netbios(ref NCB ncb); 
} 
public string GetMacAddress() 
{ 
string addr=""; 
try 
{ 
int cb; 
ASTAT adapter; 
NCB Ncb=new NCB(); 
char uRetCode; 
LANA_ENUM lenum; 
Ncb.ncb_command = (byte)NCBCONST.NCBENUM; 
cb = Marshal.SizeOf(typeof(LANA_ENUM)); 
Ncb.ncb_buffer = Marshal.AllocHGlobal(cb); 
Ncb.ncb_length = (ushort)cb; 
uRetCode = Win32API.Netbios(ref Ncb); 
lenum = (LANA_ENUM)Marshal.PtrToStructure(Ncb.ncb_buffer, typeof(LANA_ENUM)); 
Marshal.FreeHGlobal(Ncb.ncb_buffer); 
if(uRetCode != (short)NCBCONST.NRC_GOODRET) 
return ""; 
for(int i=0; i < lenum.length ;i++) 
{ 
Ncb.ncb_command = (byte)NCBCONST.NCBRESET; 
Ncb.ncb_lana_num = lenum.lana[i]; 
uRetCode = Win32API.Netbios(ref Ncb); 
if(uRetCode != (short)NCBCONST.NRC_GOODRET) 
return ""; 
Ncb.ncb_command = (byte)NCBCONST.NCBASTAT; 
Ncb.ncb_lana_num = lenum.lana[i]; 
Ncb.ncb_callname[0]=(byte)'*'; 
cb = Marshal.SizeOf(typeof(ADAPTER_STATUS)) + Marshal.SizeOf(typeof(NAME_BUFFER))*(int)NCBCONST.NUM_NAMEBUF; 
Ncb.ncb_buffer = Marshal.AllocHGlobal(cb); 
Ncb.ncb_length = (ushort)cb; 
uRetCode = Win32API.Netbios(ref Ncb); 
adapter.adapt = (ADAPTER_STATUS)Marshal.PtrToStructure(Ncb.ncb_buffer, typeof(ADAPTER_STATUS)); 
Marshal.FreeHGlobal(Ncb.ncb_buffer); 
if (uRetCode == (short)NCBCONST.NRC_GOODRET) 
{ 
if(i>0) 
addr += ":"; 
addr = string.Format("{0,2:X}{1,2:X}{2,2:X}{3,2:X}{4,2:X}{5,2:X}", 
adapter.adapt.adapter_address[0], 
adapter.adapt.adapter_address[1], 
adapter.adapt.adapter_address[2], 
adapter.adapt.adapter_address[3], 
adapter.adapt.adapter_address[4], 
adapter.adapt.adapter_address[5]); 
} 
} 
} 
catch 
{} 
return addr.Replace(' ', '0'); 
} 
} 
}