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|VERY GOOD~! IT WORKS PERFECTLY~!!
my os is xp pro , it works perfectly.
thanks a lot
|A wonderful program. Thanks a lot.
True it requires some small corrections, at least on Windows 2000, like use &H33 instead of H33, but it's not a big deal.
|Thank for the code but there are few errors. The following is the corrected code which can work on Win 2000 Server & Win Server 2003:
Const NCBASTAT As Long = &H33
Public Const NCBNAMSZ As Long = 16
Public Const HEAP_ZERO_MEMORY As Long = &H8
Public Const HEAP_GENERATE_EXCEPTIONS As Long = &H4
Public Const NCBRESET As Long = &H32
Public tmp, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7
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
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
Public Type NAME_BUFFER
name As String * NCBNAMSZ
name_num As Integer
name_flags As Integer
Public Type ASTAT
adapt As ADAPTER_STATUS
NameBuff(30) As NAME_BUFFER
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
'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 = 0
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!"
NCB.ncb_buffer = pASTAT
CopyMemory AST, NCB.ncb_buffer, Len(AST)
tmp1 = Format$(Hex(AST.adapt.adapter_address(0)), "00") & " "
tmp2 = Format$(Hex(AST.adapt.adapter_address(1)), "00") & " "
tmp3 = Format$(Hex(AST.adapt.adapter_address(2)), "00") & " "
tmp4 = Format$(Hex(AST.adapt.adapter_address(3)), "00") & " "
tmp5 = Format$(Hex(AST.adapt.adapter_address(4)), "00") & " "
tmp6 = Format$(Hex(AST.adapt.adapter_address(5)), "00")
tmp = tmp1 & " " & tmp2 & " " & tmp3 & " " & tmp4 & " " & tmp5 & " " & tmp6
HeapFree GetProcessHeap(), 0, pASTAT
GetMACAddress = tmp
|>> This article was originally written by barnseyboy
This thing it's belongs to microsoft... jjajajaja
What a thief!!!! that barnseyboy!!!
|The updated version works perfectly in VBA as well.|
|The revised code produces the right MAC on three of my newest PCs (all Vista) but produces all zeros on my older XP boxes. Anybody understand why?|
|Worked both in XP-SP2 and in Wine on Ubuntu. Excellent.|
|To elaborate on my post above from yesterday - I have now found that it does NOT work on some other machines, so the truth is that this NetBIOS call IS unreliable. Have a look at http://www.codeguru.com/vb/gen/vb_system/network/article.php/c10887/ the GetIfTable method there has worked on all machines I've tested so far, including Wine - but the GetAdaptersInfo method did not work on Wine.|
|It causes a memory leak when HeapFree GetProcessHeap(), 0, pASTAT is executed in Windows Vista|
|I TEST CODE, WORK'S OK, BUT THIS ORIGINALY,FROM MICROSOFT.COM, ON MSDN LIBRARY, GOOD CODES, AND OTHERS LOOK ATHAT, FOR REPLY ANY ANSWERS|
|THANKS! CODE WORKS FINE WITH WIN XP SP1,SP2;WINDOWS SERVER 2003 BUT RETURNS STRING "00 00 00 00 00 00" WHEN TRID ON WIN VISTA HOME BASIC |
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