如何通过VB.NET获取网卡地址

Option Explicit 

Private Const NCBASTAT = &H33 

Private Const NCBNAMSZ = 16 

Private Const HEAP_ZERO_MEMORY = &H8 

Private Const HEAP_GENERATE_EXCEPTIONS = &H4 

Private Const NCBRESET = &H32 

Private Type NCB 

ncb_command As Byte 'Integer 

ncb_retcode As Byte 'Integer 

ncb_lsn As Byte 'Integer 

ncb_num As Byte ' Integer 

ncb_buffer As Long 'String 

ncb_length As Integer 

ncb_callname As String * NCBNAMSZ 

ncb_name As String * NCBNAMSZ 

ncb_rto As Byte 'Integer 

ncb_sto As Byte ' Integer 

ncb_post As Long 

ncb_lana_num As Byte 'Integer 

ncb_cmd_cplt As Byte 'Integer 

ncb_reserve(9) As Byte ' Reserved, must be 0 

ncb_event As Long 

End Type 

Private Type ADAPTER_STATUS 

adapter_address(5) As Byte 'As String * 6 

rev_major As Byte 'Integer 

reserved0 As Byte 'Integer 

adapter_type As Byte 'Integer 

rev_minor As Byte 'Integer 

duration As Integer 

frmr_recv As Integer 

frmr_xmit As Integer 

iframe_recv_err As Integer 

xmit_aborts As Integer 

xmit_success As Long 

recv_success As Long 

iframe_xmit_err As Integer 

recv_buff_unavail As Integer 

t1_timeouts As Integer 

ti_timeouts As Integer 

Reserved1 As Long 

free_ncbs As Integer 

max_cfg_ncbs As Integer 

max_ncbs As Integer 

xmit_buf_unavail As Integer 

max_dgram_size As Integer 

pending_sess As Integer 

max_cfg_sess As Integer 

max_sess As Integer 

max_sess_pkt_size As Integer 

name_count As Integer 

End Type 

Private Type NAME_BUFFER 

name As String * NCBNAMSZ 

name_num As Integer 

name_flags As Integer 

End Type 

Private Type ASTAT 

adapt As ADAPTER_STATUS 

NameBuff(30) As NAME_BUFFER 

End Type 

Private Declare Function Netbios Lib "netapi32.dll" (pncb As NCB) As Byte 

Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" _

(hpvDest As Any, ByVal hpvSource As Long, ByVal cbCopy As Long) 

Private Declare Function GetProcessHeap Lib "kernel32" () As Long 

Private Declare Function HeapAlloc Lib "kernel32" _ 

(ByVal hHeap As Long, ByVal dwFlags As Long, _ 

ByVal dwBytes As Long) As Long 

Private Declare Function HeapFree Lib "kernel32" (ByVal hHeap As Long,_ 

ByVal dwFlags As Long, lpMem As Any) As Long 

Private Sub Command1_Click() 

Dim myNcb As NCB 

Dim bRet As Byte 

myNcb.ncb_command = NCBRESET 

bRet = Netbios(myNcb) 

myNcb.ncb_command = NCBASTAT 

myNcb.ncb_lana_num = 0 

myNcb.ncb_callname = "* " 

Dim myASTAT As ASTAT, tempASTAT As ASTAT 

Dim pASTAT As Long 

myNcb.ncb_length = Len(myASTAT) 

Debug.Print Err.LastDllError 

pASTAT = HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS _ 

Or HEAP_ZERO_MEMORY, myNcb.ncb_length) 

If pASTAT = 0 Then 

Debug.Print "memory allcoation failed!" 

Exit Sub 

End If 

myNcb.ncb_buffer = pASTAT 

bRet = Netbios(myNcb) 

Debug.Print Err.LastDllError 

CopyMemory myASTAT, myNcb.ncb_buffer, Len(myASTAT) 

MsgBox Hex(myASTAT.adapt.adapter_address(0)) & " " & _ 

Hex(myASTAT.adapt.adapter_address(1)) _ 

& " " & Hex(myASTAT.adapt.adapter_address(2)) & " " _ 

& Hex(myASTAT.adapt.adapter_address(3)) _ 

& " " & Hex(myASTAT.adapt.adapter_address(4)) & " " _ 

& Hex(myASTAT.adapt.adapter_address(5)) 

HeapFree GetProcessHeap(), 0, pASTAT 

End Sub