問題1
為什麼 print FORMAT("9A","00") 得到是 00
1A,2A,3A,4A,5A,6A,7A,8A都一樣
問題2
我查過全文檢索
程式碼:
Private Sub cmdGet_Click()
txtNIC.Text = GetMACAddress
End Sub
模組:
'=========================================================================================
' 檔  名:  basGetAddress.bas
'
' 版權資訊:  沒有版權限制,僅供參考用途。
'
' 建立日期:  1998/08/21 2001/04/16
'
' 原 作 者:  Randy Birch
'
' 目  的:  取得本機網路卡號碼 (Medium Access Control (MAC) address)
'
' 進 入 點:  不適用。
'
' 相  依:  不適用。
'
' 已知問題:  不適用。
'
' 使用方法:  不適用。
'
' 參考文獻:
'
'-內部文件:  不適用。
'
'-MSDN文件:  http://support.microsoft.com/support/kb/articles/q175/4/72.asp。
'
'        HOWTO: Get Network Adapter Address from Visual Basic
'
'-網路文件:  不適用。
'
'
'*附  註:  上述標題註解各個項目意義,請參閱紀文和網站『VB入門網』之「個個擊破」單元
'        393 標題註解(Header-style Comment)
'=========================================================================================
Option Explicit
'=========================================================================================
' 全域定義
' ----------------------------
' 全域列舉常數與常數(Enums and Constants)
' ----------------------------
Public 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
' ----------------------------
' 全域自訂資料型態(Types)
' ----------------------------
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
' ----------------------------
' 全域 API 宣告
' ----------------------------
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 Declare Function Netbios Lib "netapi32.dll" _
(pncb As NET_CONTROL_BLOCK) As Byte
  
'=========================================================================================
' 目  的:  取得本機網路卡號碼。
'
' 日  期   By       COMMENT
' ----------  ----      -------
' 1998/08/21  Randy Birch   建立
'=========================================================================================
Public Function GetMACAddress() As String
 ' retrieve the MAC Address for the network controller
 ' installed, returning a formatted string
  Dim AST               As ASTAT
  Dim NCB               As NET_CONTROL_BLOCK
  Dim pASTAT              As Long
  Dim strTmp               As String

'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 = 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!"
   Exit Function
  End If
 
  NCB.ncb_buffer = pASTAT
  Call Netbios(NCB)
 
  CopyMemory AST, NCB.ncb_buffer, Len(AST)
 
  strTmp = 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 = strTmp

End Function

因為我要抓網卡MAC ADDRESS
WIN98沒問題
WIN2000 後兩碼都為00
WINXP 則全部為00
拜託各位了
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