What's My IP address?

[Paxthegreat]

Hi, i need to find the ip address of my machine through a Visual Basic app, but i need it to work in winXP/2000

thx in advance

[jim mcnamara]

VBNET has sample code:

http://www.mvps.org/vbnet/code/netwo...lipaddress.htm

[Paxthegreat]

ok just copied that code into my app, now that dont work sorry, don't know if i've vopied it correctly as their was some moving around to be done, so here, see if theirs any differences, in the code, other wise i'm still open to suggestions:

Option Explicit

Private Const MAX_ADAPTER_NAME_LENGTH As Long = 256
Private Const MAX_ADAPTER_DESCRIPTION_LENGTH As Long = 128
Private Const MAX_ADAPTER_ADDRESS_LENGTH As Long = 8
Private Const ERROR_SUCCESS As Long = 0

Private Type IP_ADDRESS_STRING
IpAddr(0 To 15) As Byte
End Type

Private Type IP_MASK_STRING
IpMask(0 To 15) As Byte
End Type

Private Type IP_ADDR_STRING
dwNext As Long
IpAddress As IP_ADDRESS_STRING
IpMask As IP_MASK_STRING
dwContext As Long
End Type

Private Type IP_ADAPTER_INFO
dwNext As Long
ComboIndex As Long 'reserved
sAdapterName(0 To (MAX_ADAPTER_NAME_LENGTH + 3)) As Byte
sDescription(0 To (MAX_ADAPTER_DESCRIPTION_LENGTH + 3)) As Byte
dwAddressLength As Long
sIPAddress(0 To (MAX_ADAPTER_ADDRESS_LENGTH - 1)) As Byte
dwIndex As Long
uType As Long
uDhcpEnabled As Long
CurrentIpAddress As Long
IpAddressList As IP_ADDR_STRING
GatewayList As IP_ADDR_STRING
DhcpServer As IP_ADDR_STRING
bHaveWins As Long
PrimaryWinsServer As IP_ADDR_STRING
SecondaryWinsServer As IP_ADDR_STRING
LeaseObtained As Long
LeaseExpires As Long
End Type

Private Declare Function GetAdaptersInfo Lib "iphlpapi.dll" _
(pTcpTable As Any, _
pdwSize As Long) As Long

Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" _
(dst As Any, _
src As Any, _
ByVal bcount As Long)
Private Function LocalIPAddress() As String 'api vars
Dim cbRequired As Long
Dim buff() As Byte
Dim Adapter As IP_ADAPTER_INFO
Dim AdapterStr As IP_ADDR_STRING
'working vars 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
'get a pointer to the data stored in buff()
ptr1 = VarPtr(buff(0))
Do While (ptr1 <> 0) 'And (found = False)
'copy the data from the pointer to the
'first adapter into the IP_ADAPTER_INFO type
CopyMemory Adapter, ByVal ptr1, LenB(Adapter)
With Adapter
'the DHCP IP address is in the
'IpAddress.IpAddr member
sIPAddr = TrimNull(StrConv(.IpAddressList.IpAddress.IpAddr, vbUnicode))
If Len(sIPAddr) > 0 Then
found = True
Exit Do
End If
ptr1 = .dwNext
End With 'With Adapter
'ptr1 is 0 when (no more adapters) Loop 'Do While (ptr1 <> 0)
End If 'If GetAdaptersInfo End If 'If cbRequired > 0
'return any string found LocalIPAddress = sIPAddr End Function
Private Function TrimNull(item As String)

End Function
Dim pos As Integer
'double check that there is a chr$(0) in the string
pos = InStr(item, Chr$(0))
If pos Then
TrimNull = Left$(item, pos - 1)
Else: TrimNull = item
End If




Private Sub Command1_Click()
Text1.Text = LocalIPAddress()
End Sub

[jim mcnamara]

You need to put the code in a form that has one command button and one textbox. The command button is called Command1, textbox Text1.

Let me know if you get errors, and what they are, not that it just doesn't work. It does - I copied it and used it a couple of years ago.

[AutoBot]

This can also be achieved by adding a winsock control to your form and putting in this code:

Private Sub Form_Load()
 
    MsgBox = Winsock1.LocalIP
 
End Sub

[Paxthegreat]

aahhh, the winsock solution worked alot easier and basically thx