Private Const MAX_IP = 255 Private Type IPINFO dwAddr As Long dwIndex As Long dwMask As Long dwBCastAddr As Long dwReasmSize As Long unused1 As Integer unused2 As Integer End Type Private Type MIB_IPADDRTABLE dEntrys As Long mIPInfo(MAX_IP) As IPINFO End Type Private Type IP_Array mBuffer As MIB_IPADDRTABLE BufferLen As Long End Type Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long) Private Declare Function GetIpAddrTable Lib "IPHlpApi" (pIPAdrTable As Byte, pdwSize As Long, ByVal Sort As Long) As Long
Private Function ConvertAddressToString(longAddr As Long) As String Dim myByte(3) As Byte Dim Cnt As Long CopyMemory myByte(0), longAddr, 4 For Cnt = 0 To 3 ConvertAddressToString = ConvertAddressToString + CStr(myByte(Cnt)) + "." Next Cnt ConvertAddressToString = Left$(ConvertAddressToString, Len(ConvertAddressToString) - 1) End Function
Private Function GetIPAddress() As String Dim Ret As Long, Tel As Long Dim bBytes() As Byte Dim StrIP As String Dim Listing As MIB_IPADDRTABLE On Error GoTo ERROR GetIpAddrTable ByVal 0&, Ret, True If Ret <= 0 Then Exit Function ReDim bBytes(0 To Ret - 1) As Byte GetIpAddrTable bBytes(0), Ret, False CopyMemory Listing.dEntrys, bBytes(0), 4 StrIP = "你电脑上有 " & Listing.dEntrys & " 个 IP 地址。" & vbCrLf StrIP = StrIP & "----------------------------------------------" & vbCrLf For Tel = 0 To Listing.dEntrys - 1 CopyMemory Listing.mIPInfo(Tel), bBytes(4 + (Tel * Len(Listing.mIPInfo(0)))), Len(Listing.mIPInfo(Tel)) StrIP = StrIP & "IP 地址：" & ConvertAddressToString(Listing.mIPInfo(Tel).dwAddr) & vbCrLf StrIP = StrIP & "子网掩码：" & ConvertAddressToString(Listing.mIPInfo(Tel).dwMask) & vbCrLf StrIP = StrIP & "广播地址：" & ConvertAddressToString(Listing.mIPInfo(Tel).dwBCastAddr) & vbCrLf StrIP = StrIP & "----------------------------------------------" & vbCrLf Next Tel GetIPAddress = StrIP ERROR: If Err.Number <> 0 Then GetIPAddress = "无法正确取得IP地址，请检查您的配置。" End FunctionPrivate Sub CmdGet_Click() TxtShow.Text = GetIPAddress End Sub 陈锐写的。
以下代码写在模块中，可以直接调用 GetIPAddress()方法 Public Const MAX_WSADescription = 256 Public Const MAX_WSASYSStatus = 128 Public Const ERROR_SUCCESS As Long = 0 Public Const WS_VERSION_REQD As Long = &H101 Public Const WS_VERSION_MAJOR As Long = WS_VERSION_REQD \ &H100 And &HFF& Public Const WS_VERSION_MINOR As Long = WS_VERSION_REQD And &HFF& Public Const MIN_SOCKETS_REQD As Long = 1 Public Const SOCKET_ERROR As Long = -1 Public Type HOSTENT hName As Long hAliases As Long hAddrType As Integer hLen As Integer hAddrList As Long End Type Public Type WSADATA wVersion As Integer wHighVersion As Integer szDescription(0 To MAX_WSADescription) As Byte szSystemStatus(0 To MAX_WSASYSStatus) As Byte wMaxSockets As Integer wMaxUDPDG As Integer dwVendorInfo As Long End Type Public Declare Function WSAGetLastError Lib "WSOCK32.DLL" () As Long Public Declare Function WSAStartup Lib "WSOCK32.DLL" (ByVal wVersionRequired As Long, lpWSADATA As WSADATA) As Long Public Declare Function WSACleanup Lib "WSOCK32.DLL" () As Long Public Declare Function gethostname Lib "WSOCK32.DLL" (ByVal szHost As String, ByVal dwHostLen As Long) As Long Public Declare Function gethostbyname Lib "WSOCK32.DLL" (ByVal szHost As String) As Long Public Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (hpvDest As Any, ByVal hpvSource As Long, ByVal cbCopy As Long) Public Function GetIPAddress() As String Dim sHostName As String * 256 Dim lpHost As Long Dim HOST As HOSTENT Dim dwIPAddr As Long Dim tmpIPAddr() As Byte Dim i As Integer Dim sIPAddr As String If Not SocketsInitialize() Then GetIPAddress = "" Exit Function End If 'gethostname returns the name of the local host into 'the buffer specified by the name parameter. The host 'name is returned as a null-terminated string. The 'form of the host name is dependent on the Windows 'Sockets provider - it can be a simple host name, or 'it can be a fully qualified domain name. However, it 'is guaranteed that the name returned will be successfully 'parsed by gethostbyname and WSAAsyncGetHostByName. 'In actual application, if no local host name has been 'configured, gethostname must succeed and return a token 'host name that gethostbyname or WSAAsyncGetHostByName 'can resolve. If gethostname(sHostName, 256) = SOCKET_ERROR Then GetIPAddress = "" MsgBox "Windows Sockets error " & Str$(WSAGetLastError()) & " has occurred. Unable to successfully get Host Name." SocketsCleanup Exit Function End If 'gethostbyname returns a pointer to a HOSTENT structure '- a structure allocated by Windows Sockets. The HOSTENT 'structure contains the results of a successful search 'for the host specified in the name parameter. 'The application must never attempt to modify this 'structure or to free any of its components. Furthermore, 'only one copy of this structure is allocated per thread, 'so the application should copy any information it needs 'before issuing any other Windows Sockets function calls. 'gethostbyname function cannot resolve IP address strings 'passed to it. Such a request is treated exactly as if an 'unknown host name were passed. Use inet_addr to convert 'an IP address string the string to an actual IP address, 'then use another function, gethostbyaddr, to obtain the 'contents of the HOSTENT structure. sHostName = Trim$(sHostName) lpHost = gethostbyname(sHostName) If lpHost = 0 Then GetIPAddress = "" MsgBox "Windows Sockets are not responding. " & "Unable to successfully get Host Name." SocketsCleanup Exit Function End If 'to extract the returned IP address, we have to copy 'the HOST structure and its members CopyMemory HOST, lpHost, Len(HOST) CopyMemory dwIPAddr, HOST.hAddrList, 4 'create an array to hold the result ReDim tmpIPAddr(1 To HOST.hLen) CopyMemory tmpIPAddr(1), dwIPAddr, HOST.hLen 'and with the array, build the actual address, 'appending a period between members For i = 1 To HOST.hLen sIPAddr = sIPAddr & tmpIPAddr(i) & "." Next 'the routine adds a period to the end of the 'string, so remove it here GetIPAddress = Mid$(sIPAddr, 1, Len(sIPAddr) - 1) SocketsCleanup End Function Public Function GetIPHostName() As String Dim sHostName As String * 256 If Not SocketsInitialize() Then GetIPHostName = "" Exit Function End If If gethostname(sHostName, 256) = SOCKET_ERROR Then GetIPHostName = "" MsgBox "Windows Sockets error " & Str$(WSAGetLastError()) & " has occurred. Unable to successfully get Host Name." SocketsCleanup Exit Function End If GetIPHostName = Left$(sHostName, InStr(sHostName, Chr(0)) - 1) SocketsCleanup End Function Public Function HiByte(ByVal wParam As Integer) As Byte 'note: VB4-32 users should declare this function As Integer HiByte = (wParam And &HFF00&) \ (&H100) End Function Public Function LoByte(ByVal wParam As Integer) As Byte 'note: VB4-32 users should declare this function As Integer LoByte = wParam And &HFF& End Function Public Sub SocketsCleanup() If WSACleanup() <> ERROR_SUCCESS Then MsgBox "Socket error occurred in Cleanup." End If End Sub Public Function SocketsInitialize() As Boolean Dim WSAD As WSADATA Dim sLoByte As String Dim sHiByte As String If WSAStartup(WS_VERSION_REQD, WSAD) <> ERROR_SUCCESS Then MsgBox "The 32-bit Windows Socket is not responding." SocketsInitialize = False Exit Function End If If WSAD.wMaxSockets < MIN_SOCKETS_REQD Then MsgBox "This application requires a minimum of " & CStr(MIN_SOCKETS_REQD) & " supported sockets." SocketsInitialize = False Exit Function End If If LoByte(WSAD.wVersion) < WS_VERSION_MAJOR Or (LoByte(WSAD.wVersion) = WS_VERSION_MAJOR And HiByte(WSAD.wVersion) < WS_VERSION_MINOR) Then sHiByte = CStr(HiByte(WSAD.wVersion)) sLoByte = CStr(LoByte(WSAD.wVersion)) MsgBox "Sockets version " & sLoByte & "." & sHiByte & " is not supported by 32-bit Windows Sockets." SocketsInitialize = False Exit Function End If 'must be OK, so lets do it SocketsInitialize = True End Function '--end block--'
Private Type IPINFO
dwAddr As Long
dwIndex As Long
dwMask As Long
dwBCastAddr As Long
dwReasmSize As Long
unused1 As Integer
unused2 As Integer
End Type
Private Type MIB_IPADDRTABLE
dEntrys As Long
mIPInfo(MAX_IP) As IPINFO
End Type
Private Type IP_Array
mBuffer As MIB_IPADDRTABLE
BufferLen As Long
End Type
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)
Private Declare Function GetIpAddrTable Lib "IPHlpApi" (pIPAdrTable As Byte, pdwSize As Long, ByVal Sort As Long) As Long
Private Function ConvertAddressToString(longAddr As Long) As String
Dim myByte(3) As Byte
Dim Cnt As Long
CopyMemory myByte(0), longAddr, 4
For Cnt = 0 To 3
ConvertAddressToString = ConvertAddressToString + CStr(myByte(Cnt)) + "."
Next Cnt
ConvertAddressToString = Left$(ConvertAddressToString, Len(ConvertAddressToString) - 1)
End Function
Private Function GetIPAddress() As String
Dim Ret As Long, Tel As Long
Dim bBytes() As Byte
Dim StrIP As String
Dim Listing As MIB_IPADDRTABLE
On Error GoTo ERROR
GetIpAddrTable ByVal 0&, Ret, True
If Ret <= 0 Then Exit Function
ReDim bBytes(0 To Ret - 1) As Byte
GetIpAddrTable bBytes(0), Ret, False
CopyMemory Listing.dEntrys, bBytes(0), 4
StrIP = "你电脑上有 " & Listing.dEntrys & " 个 IP 地址。" & vbCrLf
StrIP = StrIP & "----------------------------------------------" & vbCrLf
For Tel = 0 To Listing.dEntrys - 1
CopyMemory Listing.mIPInfo(Tel), bBytes(4 + (Tel * Len(Listing.mIPInfo(0)))), Len(Listing.mIPInfo(Tel))
StrIP = StrIP & "IP 地址：" & ConvertAddressToString(Listing.mIPInfo(Tel).dwAddr) & vbCrLf
StrIP = StrIP & "子网掩码：" & ConvertAddressToString(Listing.mIPInfo(Tel).dwMask) & vbCrLf
StrIP = StrIP & "广播地址：" & ConvertAddressToString(Listing.mIPInfo(Tel).dwBCastAddr) & vbCrLf
StrIP = StrIP & "----------------------------------------------" & vbCrLf
Next Tel
GetIPAddress = StrIP
ERROR: If Err.Number <> 0 Then GetIPAddress = "无法正确取得IP地址，请检查您的配置。"
End FunctionPrivate Sub CmdGet_Click()
TxtShow.Text = GetIPAddress
End Sub
陈锐写的。
Public Const MAX_WSADescription = 256
Public Const MAX_WSASYSStatus = 128
Public Const ERROR_SUCCESS As Long = 0
Public Const WS_VERSION_REQD As Long = &H101
Public Const WS_VERSION_MAJOR As Long = WS_VERSION_REQD \ &H100 And &HFF&
Public Const WS_VERSION_MINOR As Long = WS_VERSION_REQD And &HFF&
Public Const MIN_SOCKETS_REQD As Long = 1
Public Const SOCKET_ERROR As Long = -1
Public Type HOSTENT
hName As Long
hAliases As Long
hAddrType As Integer
hLen As Integer
hAddrList As Long
End Type
Public Type WSADATA
wVersion As Integer
wHighVersion As Integer
szDescription(0 To MAX_WSADescription) As Byte
szSystemStatus(0 To MAX_WSASYSStatus) As Byte
wMaxSockets As Integer
wMaxUDPDG As Integer
dwVendorInfo As Long
End Type Public Declare Function WSAGetLastError Lib "WSOCK32.DLL" () As Long
Public Declare Function WSAStartup Lib "WSOCK32.DLL" (ByVal wVersionRequired As Long, lpWSADATA As WSADATA) As Long
Public Declare Function WSACleanup Lib "WSOCK32.DLL" () As Long
Public Declare Function gethostname Lib "WSOCK32.DLL" (ByVal szHost As String, ByVal dwHostLen As Long) As Long
Public Declare Function gethostbyname Lib "WSOCK32.DLL" (ByVal szHost As String) As Long
Public Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (hpvDest As Any, ByVal hpvSource As Long, ByVal cbCopy As Long) Public Function GetIPAddress() As String
Dim sHostName As String * 256
Dim lpHost As Long
Dim HOST As HOSTENT
Dim dwIPAddr As Long
Dim tmpIPAddr() As Byte
Dim i As Integer
Dim sIPAddr As String
If Not SocketsInitialize() Then
GetIPAddress = ""
Exit Function
End If
'gethostname returns the name of the local host into
'the buffer specified by the name parameter. The host
'name is returned as a null-terminated string. The
'form of the host name is dependent on the Windows
'Sockets provider - it can be a simple host name, or
'it can be a fully qualified domain name. However, it
'is guaranteed that the name returned will be successfully
'parsed by gethostbyname and WSAAsyncGetHostByName.
'In actual application, if no local host name has been
'configured, gethostname must succeed and return a token
'host name that gethostbyname or WSAAsyncGetHostByName
'can resolve.
If gethostname(sHostName, 256) = SOCKET_ERROR Then
GetIPAddress = ""
MsgBox "Windows Sockets error " & Str$(WSAGetLastError()) & " has occurred. Unable to successfully get Host Name."
SocketsCleanup
Exit Function
End If
'gethostbyname returns a pointer to a HOSTENT structure
'- a structure allocated by Windows Sockets. The HOSTENT
'structure contains the results of a successful search
'for the host specified in the name parameter.
'The application must never attempt to modify this
'structure or to free any of its components. Furthermore,
'only one copy of this structure is allocated per thread,
'so the application should copy any information it needs
'before issuing any other Windows Sockets function calls.
'gethostbyname function cannot resolve IP address strings
'passed to it. Such a request is treated exactly as if an
'unknown host name were passed. Use inet_addr to convert
'an IP address string the string to an actual IP address,
'then use another function, gethostbyaddr, to obtain the
'contents of the HOSTENT structure.
sHostName = Trim$(sHostName) lpHost = gethostbyname(sHostName)
If lpHost = 0 Then GetIPAddress = "" MsgBox "Windows Sockets are not responding. " & "Unable to successfully get Host Name." SocketsCleanup Exit Function End If
'to extract the returned IP address, we have to copy 'the HOST structure and its members CopyMemory HOST, lpHost, Len(HOST) CopyMemory dwIPAddr, HOST.hAddrList, 4
'create an array to hold the result ReDim tmpIPAddr(1 To HOST.hLen) CopyMemory tmpIPAddr(1), dwIPAddr, HOST.hLen
'and with the array, build the actual address, 'appending a period between members For i = 1 To HOST.hLen sIPAddr = sIPAddr & tmpIPAddr(i) & "." Next
'the routine adds a period to the end of the 'string, so remove it here GetIPAddress = Mid$(sIPAddr, 1, Len(sIPAddr) - 1)
SocketsCleanup
End Function Public Function GetIPHostName() As String
Dim sHostName As String * 256
If Not SocketsInitialize() Then GetIPHostName = "" Exit Function End If
If gethostname(sHostName, 256) = SOCKET_ERROR Then GetIPHostName = "" MsgBox "Windows Sockets error " & Str$(WSAGetLastError()) & " has occurred. Unable to successfully get Host Name." SocketsCleanup Exit Function End If
GetIPHostName = Left$(sHostName, InStr(sHostName, Chr(0)) - 1) SocketsCleanup
End Function Public Function HiByte(ByVal wParam As Integer) As Byte
'note: VB4-32 users should declare this function As Integer HiByte = (wParam And &HFF00&) \ (&H100)
End Function Public Function LoByte(ByVal wParam As Integer) As Byte
'note: VB4-32 users should declare this function As Integer LoByte = wParam And &HFF&
End Function Public Sub SocketsCleanup()
If WSACleanup() <> ERROR_SUCCESS Then MsgBox "Socket error occurred in Cleanup." End If
End Sub
Public Function SocketsInitialize() As Boolean
Dim WSAD As WSADATA Dim sLoByte As String Dim sHiByte As String
If WSAStartup(WS_VERSION_REQD, WSAD) <> ERROR_SUCCESS Then MsgBox "The 32-bit Windows Socket is not responding." SocketsInitialize = False Exit Function End If If WSAD.wMaxSockets < MIN_SOCKETS_REQD Then MsgBox "This application requires a minimum of " & CStr(MIN_SOCKETS_REQD) & " supported sockets."
SocketsInitialize = False Exit Function End If If LoByte(WSAD.wVersion) < WS_VERSION_MAJOR Or (LoByte(WSAD.wVersion) = WS_VERSION_MAJOR And HiByte(WSAD.wVersion) < WS_VERSION_MINOR) Then
sHiByte = CStr(HiByte(WSAD.wVersion)) sLoByte = CStr(LoByte(WSAD.wVersion))
MsgBox "Sockets version " & sLoByte & "." & sHiByte & " is not supported by 32-bit Windows Sockets."
SocketsInitialize = False Exit Function
End If 'must be OK, so lets do it SocketsInitialize = True
End Function '--end block--'
"路由服务器"就是另一台电脑（“路由服务器”不是电脑也相当于另一台电脑），得到另一台电脑的IP，你说应该用什么方法？
1。有直接访问“路由服务器”的权限
2。由于“路由服务器”允许通过它访问internet,所以有了第二个可能，就是让internet上的第三个电脑告诉你。