Option Explicit
Private Const NCBASTAT = &H33Private Const NCBNAMSZ = 16Private Const HEAP_ZERO_MEMORY = &H8Private Const HEAP_GENERATE_EXCEPTIONS = &H4Private Const NCBRESET = &H32Private Type 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 LongEnd TypePrivate 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 IntegerEnd TypePrivate Type NAME_BUFFER name As String * NCBNAMSZ name_num As Integer name_flags As IntegerEnd TypePrivate Type ASTAT adapt As ADAPTER_STATUS NameBuff(30) As NAME_BUFFEREnd TypePrivate Declare Function Netbios Lib "netapi32.dll" (pncb As NCB) As BytePrivate 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 LongPrivate Declare Function HeapAlloc Lib "kernel32" (ByVal hHeap As Long, ByVal dwFlags As Long, ByVal dwBytes As Long) As LongPrivate Declare Function HeapFree Lib "kernel32" (ByVal hHeap As Long, ByVal dwFlags As Long, lpMem As Any) As Long
Private Function EthernetAddress(LanaNumber As Long) As String Dim udtNCB As NCB Dim bytResponse As Byte Dim udtASTAT As ASTAT Dim udtTempASTAT As ASTAT Dim lngASTAT As Long Dim strOut As String Dim x As Integer udtNCB.ncb_command = NCBRESET bytResponse = Netbios(udtNCB) udtNCB.ncb_command = NCBASTAT udtNCB.ncb_lana_num = LanaNumber udtNCB.ncb_callname = "* " udtNCB.ncb_length = Len(udtASTAT) lngASTAT = HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS Or HEAP_ZERO_MEMORY, udtNCB.ncb_length) strOut = "" If lngASTAT Then udtNCB.ncb_buffer = lngASTAT bytResponse = Netbios(udtNCB) CopyMemory udtASTAT, udtNCB.ncb_buffer, Len(udtASTAT) With udtASTAT.adapt For x = 0 To 5 strOut = strOut & Right$("00" & Hex$(.adapter_address(x)), 2) Next x End With HeapFree GetProcessHeap(), 0, lngASTAT End If EthernetAddress = strOutEnd Function
Private Sub Command1_Click() Me.Caption = EthernetAddress(0) MsgBox "NetCard Number:" + (Chr(13)) + EthernetAddress(0)End Sub
