⑴ vb获取自己的mac/ip和网关的mac/ip
Private Function EthernetAddress(LanaNumber As Long) As String
Dim udtNCB As NCB
Dim bytResponse As Byte
Dim udtASTAT As ASTAT
Dim udtTempASTAT As ASTAT
Dim lngASTAT As Long
Dim strOut As String
Dim x As Integer
udtNCB.ncb_command = NCBRESET
bytResponse = Netbios(udtNCB)
udtNCB.ncb_command = NCBASTAT
udtNCB.ncb_lana_num = LanaNumber
udtNCB.ncb_callname = "* "
udtNCB.ncb_length = Len(udtASTAT)
lngASTAT = HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS Or HEAP_ZERO_MEMORY, udtNCB.ncb_length)
strOut = ""
If lngASTAT Then
udtNCB.ncb_buffer = lngASTAT
bytResponse = Netbios(udtNCB)
CopyMemory udtASTAT, udtNCB.ncb_buffer, Len(udtASTAT)
With udtASTAT.adapt
For x = 0 To 5
strOut = strOut & Right$("00" & Hex$(.adapter_address(x)), 2)
Next x
End With
HeapFree GetProcessHeap(), 0, lngASTAT
End If
EthernetAddress = strOut
End Function
Function LocalIPAddress() As String
Dim cbRequired As Long
Dim buff() As Byte
Dim Adapter As IP_ADAPTER_INFO
Dim AdapterStr As IP_ADDR_STRING
Dim ptr1 As Long
Dim sIPAddr As String
Dim found As Boolean
Call GetAdaptersInfo(ByVal 0&, cbRequired)
If cbRequired > 0 Then
ReDim buff(0 To cbRequired - 1) As Byte
If GetAdaptersInfo(buff(0), cbRequired) = ERROR_SUCCESS Then
'获取存放在buff()中的数据的指针
ptr1 = VarPtr(buff(0))
Do While (ptr1 <> 0)
'将第一个网卡的数据转换到IP_ADAPTER_INFO结构中
CopyMemory Adapter, ByVal ptr1, LenB(Adapter)
With Adapter
'IpAddress.IpAddr成员给出了DHCP的IP地址
sIPAddr = TrimNull(StrConv(.IpAddressList.IpAddress.IpAddr, vbUnicode))
If Len(sIPAddr) > 0 Then
found = True
Exit Do
End If
ptr1 = .dwNext
End With 'With Adapter
'不再有网卡时，ptr1的值为0
Loop 'Do While (ptr1 <> 0)
End If 'If GetAdaptersInfo
End If 'If cbRequired > 0
'返回结果字符串
LocalIPAddress = sIPAddr
End Function
Function TrimNull(item As String)
Dim pos As Integer
pos = InStr(item, Chr$(0))
If pos Then
TrimNull = Left$(item, pos - 1)
Else: TrimNull = item
End If
End Function
Private Sub Form_Load()
Text1 = "IP地址:" & LocalIPAddress
Text2 = "MAC地址:" & EthernetAddress(0)
End Sub