VB.NET开发语言是一款面向对象的功能强大的编程语言。它的应用可以帮助开发人员实现许多功能需求。比如VB.NET获取网卡地址等。下面就会针对这一方法进行一个详细的解读，希望对大家有所帮助。#t#
程序语言: Microsoft Visual Basic 4.0,5.0,6.0
运行平台: WINDOWS
功能描述: IPX和NETBIOS接口需要网络地址。该文通过详细的步骤演示了如何通过VB.NET获取网卡地址。
VB.NET获取网卡地址步骤：
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
- 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
把下面的VB.NET获取网卡地址的代码放入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 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
4)按F5，运行该程序。
5)点击Command1。注意，网卡地址将在一信息框中显示出来。至此，VB.NET获取网卡地址的操作就结束了。
