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| Private Const NCBASTAT As Long = &H33
Private Const NCBNAMSZ As Long = 16
Private Const HEAP_ZERO_MEMORY As Long = &H8
Private Const HEAP_GENERATE_EXCEPTIONS As Long = &H4
Private Const NCBRESET As Long = &H32
Private Type NET_CONTROL_BLOCK
'definition du type net control Block
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
ncb_event As Long
End Type
Private Type ADAPTER_STATUS
'definition du type pour definir le statut de l'adaptateur réseau
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
Private Type NAME_BUFFER
name As String * NCBNAMSZ
name_num As Integer
name_flags As Integer
End Type
Private Type ASTAT
adapt As ADAPTER_STATUS
NameBuff(30) As NAME_BUFFER
End Type
Private Declare Function Netbios Lib "netapi32" (pncb As NET_CONTROL_BLOCK) As Byte
Private Declare Sub CopyMemory Lib "kernel32" _
Alias "RtlMoveMemory" (hpvDest As Any, ByVal hpvSource As Long, ByVal cbCopy As Long)
Private Declare Function GetProcessHeap Lib "kernel32" () As Long
Private Declare Function HeapAlloc Lib "kernel32" _
(ByVal hHeap As Long, ByVal dwFlags As Long, ByVal dwBytes As Long) As Long
Private Declare Function HeapFree Lib "kernel32" _
(ByVal hHeap As Long, ByVal dwFlags As Long, lpMem As Any) As Long
Public Function GetMACAddress() As String
Dim tmp As String
Dim pASTAT As Long
Dim NCB As NET_CONTROL_BLOCK
Dim AST As ASTAT
NCB.ncb_command = NCBRESET
Call Netbios(NCB)
NCB.ncb_callname = "* "
NCB.ncb_command = NCBASTAT
NCB.ncb_lana_num = 0
NCB.ncb_length = Len(AST)
'allocation de la memoire dans le tas du processus
pASTAT = HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS Or _
HEAP_ZERO_MEMORY, NCB.ncb_length)
If pASTAT = 0 Then
Debug.Print "pas assez de mémoire!" 'bon, y a peu de chance que ca arrive :o)
Exit Function
End If
NCB.ncb_buffer = pASTAT
'appel de la fonction netbios qui va nous donner les stats de la carte
'(dont l'adresse MAC)
Call Netbios(NCB)
CopyMemory AST, NCB.ncb_buffer, Len(AST)
tmp = Right$("00" & Hex(AST.adapt.adapter_address(0)), 2) & " " & _
Right$("00" & Hex(AST.adapt.adapter_address(1)), 2) & " " & _
Right$("00" & Hex(AST.adapt.adapter_address(2)), 2) & " " & _
Right$("00" & Hex(AST.adapt.adapter_address(3)), 2) & " " & _
Right$("00" & Hex(AST.adapt.adapter_address(4)), 2) & " " & _
Right$("00" & Hex(AST.adapt.adapter_address(5)), 2)
'désallocation de la mémoire...
HeapFree GetProcessHeap(), 0, pASTAT
GetMACAddress = tmp
End Function
Sub MonForm_OnCurrent()
Dim strMacAddr As String
strMacAddr = getMACAdress()
If strMacAddr = "XX-XX-XX-XX-XX-XX" Then
Exit Sub
Else
DoCmd.Quit
End If |
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