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如何通过VB获取网卡地址
摘要:1)在VisualBasic生成标准的EXE文件。缺省创建Form1。2)在Form1中添加一命令按钮,缺省名为Command1。3)把下列...

1)在Visual Basic生成标准的EXE文件。缺省创建 Form1。

2)在Form1中添加一命令按钮,缺省名为Command1。

3)把下列代码放到Form1中说明部分。

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

if rame_recv_err As Integer

xmit_aborts As Integer

xmit_success As Long

recv_success As Long

if rame_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

把下面的代码放入Command1_Click的事件中:

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 stDllError

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 stDllError

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 Su

5)点击Command1。注意,网卡地址将在一信息框中显示出来。

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