Hi everybody - Ive been looking for some vba to lookup the MAC address
on the current PC and have found 2 types - the first was provided on
this forum by a kind user but has a flaw! it wont display the MAC
address if the motherboard is the way by which the MAC code is
generated, ie no separate network card plugged into a PCI slot. The
other which vba is below displays the address ( physical address ).

The following displays the physical address and works on PC's with a
network connection regardless the way its built onto the motherboard
but displays the address in a dialogue box rather than a cell (
preffered way ).

Sub GetPhysAddress()
Dim oWMIService As Object
Dim oColAdapters As Object
Dim oObjAdapter As Object

Set oWMIService = GetObject("winmgmts:" & "!\\.\root\cimv2")
Set oColAdapters = oWMIService.ExecQuery _
("Select * from Win32_NetworkAdapterConfiguration Where IPEnabled =
True")

For Each oObjAdapter In oColAdapters
MsgBox "Adapter Physical address: " & oObjAdapter.MACAddress
Next

Set oObjAdapter = Nothing
Set oColAdapters = Nothing
Set oWMIService = Nothing
End Sub

My question is - can anybody help by modifcation to the above code in
making it display its result in a cell rather than the dialogue box -
or - can anybody help by altering the longer version below that does
display its result in a cell but does not work on MAC addresses
provided by the motherboard ( so it works like the shorter version ).

Longer version below.

Option Explicit
Public Const NCBASTAT As Long = &H33 '<- added &
Public Const NCBNAMSZ As Long = 16
Public Const HEAP_ZERO_MEMORY As Long = &H8 '<- added &
Public Const HEAP_GENERATE_EXCEPTIONS As Long = &H4 '<- added &
Public Const NCBRESET As Long = &H32 '<- added &
Public Type NET_CONTROL_BLOCK 'NCB
ncb_command As Byte
ncb_retcode As Byte
ncb_lsn As Byte
ncb_num As Byte
ncb_buffer As Long
ncb_length As Integer
ncb_callname As String * NCBNAMSZ
ncb_name As String * NCBNAMSZ
ncb_rto As Byte
ncb_sto As Byte
ncb_post As Long
ncb_lana_num As Byte
ncb_cmd_cplt As Byte
ncb_reserve(9) As Byte ' Reserved, must be 0
ncb_event As Long
End Type
Public Type ADAPTER_STATUS
adapter_address(5) As Byte
rev_major As Byte
reserved0 As Byte
adapter_type As Byte
rev_minor As Byte
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

Public Type NAME_BUFFER
name As String * NCBNAMSZ
name_num As Integer
name_flags As Integer
End Type
Public Type ASTAT
adapt As ADAPTER_STATUS
NameBuff(30) As NAME_BUFFER
End Type
Public Declare Function Netbios Lib "netapi32.dll" (pncb As
NET_CONTROL_BLOCK) As Byte

Public Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory"
(hpvDest As Any, _
ByVal hpvSource As Long, ByVal cbCopy As Long)

Public Declare Function GetProcessHeap Lib "kernel32" () As Long
Public Declare Function HeapAlloc Lib "kernel32" (ByVal hHeap As Long,
_
ByVal dwFlags As Long, ByVal dwBytes As Long) As Long

Public Declare Function HeapFree Lib "kernel32" _
(ByVal hHeap As Long, ByVal dwFlags As Long, lpMem As Any) As Long
Public Function GetMACAddress() As String 'retrieve the MAC Address for
the network controller
'installed, returning a formatted string

Dim tmp As String
Dim pASTAT As Long
Dim NCB As NET_CONTROL_BLOCK
Dim AST As ASTAT 'The IBM NetBIOS 3.0 specifications defines four
basic
'NetBIOS environments under the NCBRESET command. Win32
'follows the OS/2 Dynamic Link Routine (DLR) environment.
'This means that the first NCB issued by an application
'must be a NCBRESET, with the exception of NCBENUM.
'The Windows NT implementation differs from the IBM
'NetBIOS 3.0 specifications in the NCB_CALLNAME field.
NCB.ncb_command = NCBRESET
Call Netbios(NCB)

'To get the Media Access Control (MAC) address for an
'ethernet adapter programmatically, use the Netbios()
'NCBASTAT command and provide a "*" as the name in the
'NCB.ncb_CallName field (in a 16-chr string).
NCB.ncb_callname = "* "
NCB.ncb_command = NCBASTAT

'For machines with multiple network adapters you need to
'enumerate the LANA numbers and perform the NCBASTAT
'command on each. Even when you have a single network
'adapter, it is a good idea to enumerate valid LANA numbers
'first and perform the NCBASTAT on one of the valid LANA
'numbers. It is considered bad programming to hardcode the
'LANA number to 0 (see the comments section below).
NCB.ncb_lana_num = 4
NCB.ncb_length = Len(AST)

pASTAT = HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS _
Or HEAP_ZERO_MEMORY, NCB.ncb_length)

If pASTAT = 0 Then
Debug.Print "memory allocation failed!"
Exit Function
End If

NCB.ncb_buffer = pASTAT
Call Netbios(NCB)

CopyMemory AST, NCB.ncb_buffer, Len(AST)

tmp = Format$(Hex(AST.adapt.adapter_address(0)), "00") & " " _
& Format$(Hex(AST.adapt.adapter_address(1)), "00") & " " & _
Format$(Hex(AST.adapt.adapter_address(2)), "00") & " " & _
Format$(Hex(AST.adapt.adapter_address(3)), "00") & " " & _
Format$(Hex(AST.adapt.adapter_address(4)), "00") & " " & _
Format$(Hex(AST.adapt.adapter_address(5)), "00")

HeapFree GetProcessHeap(), 0, pASTAT

GetMACAddress = tmp
End Function

Thanks


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