如何通过vb获取网卡地址.txt

PX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获取网卡地址

如何通过VB获取网卡地址 
 
 


[程序语言] Microsoft Visual Basic 4.0,5.0,6.0 
[运行平台] WINDOWS 
[源码来源] http://support.microsoft.com/support/kb/articles/q175/4/72.asp?FR=0 
[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。