在XP下用VB6怎样得到网卡的Mac地址
在XP下用VB6怎样得到网卡的Mac地址？现有一段代码，在Win98下好用，但在XP下不好用，不知是什么原因。希望高手指教:Option Explicit
Private Const NCBASTAT = &H33
Private Const NCBNAMSZ = 16
Private Const HEAP_ZERO_MEMORY = &H8
Private Const HEAP_GENERATE_EXCEPTIONS = &H4
Private Const NCBRESET = &H32
Private Type NCB
ncb_command As Byte 'Integer
ncb_retcode As Byte 'Integer
ncb_lsn As Byte 'Integer
ncb_num As Byte ' Integer
ncb_buffer As Long 'String
ncb_length As Integer
ncb_callname As String * NCBNAMSZ
ncb_name As String * NCBNAMSZ
ncb_rto As Byte 'Integer
ncb_sto As Byte ' Integer
ncb_post As Long
ncb_lana_num As Byte 'Integer
ncb_cmd_cplt As Byte 'Integer
ncb_reserve(9) As Byte ' Reserved, must be 0
ncb_event As Long
End Type
Private Type ADAPTER_STATUS
adapter_address(5) As Byte 'As String * 6
rev_major As Byte 'Integer
reserved0 As Byte 'Integer
adapter_type As Byte 'Integer
rev_minor As Byte 'Integer
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.dll" (pncb As NCB) 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
把下面的代码放入Command1_Click的事件中：
Private Sub Command1_Click()
Dim myNcb As NCB
Dim bRet As Byte
myNcb.ncb_command = NCBRESET
bRet = Netbios(myNcb)
myNcb.ncb_command = NCBASTAT
myNcb.ncb_lana_num = 0
myNcb.ncb_callname = "* "
Dim myASTAT As ASTAT, tempASTAT As ASTAT
Dim pASTAT As Long
myNcb.ncb_length = Len(myASTAT)
Debug.Print Err.LastDllError
pASTAT = HeapAlloc(GetProcessHeap(), HEAP_GENERATE_EXCEPTIONS _
Or HEAP_ZERO_MEMORY, myNcb.ncb_length)
If pASTAT = 0 Then
Debug.Print "memory allcoation failed!"
Exit Sub
End If
myNcb.ncb_buffer = pASTAT
bRet = Netbios(myNcb)
Debug.Print Err.LastDllError
CopyMemory myASTAT, myNcb.ncb_buffer, Len(myASTAT)
MsgBox Hex(myASTAT.adapt.adapter_address(0)) & " " & _
Hex(myASTAT.adapt.adapter_address(1)) _
& " " & Hex(myASTAT.adapt.adapter_address(2)) & " " _
& Hex(myASTAT.adapt.adapter_address(3)) _
& " " & Hex(myASTAT.adapt.adapter_address(4)) & " " _
& Hex(myASTAT.adapt.adapter_address(5))
HeapFree GetProcessHeap(), 0, pASTAT
End Sub
自己顶一下。
领导让我将作好的程序加密后再使用，以控制软件的使用范围。我查了一下资料，觉得用计算机硬件的一些特征码比较好一点，比如MAC地址或CPU序列号，但不知在XP下用VB6怎样实现，望在这方面有研究的前辈指教。
方法有好几种，不管哪种方法都要注意多网卡的情况。
1.用VB调用系统的ipconfig.exe /all > c:\ip.txt，得到的信息都在ip.txt文件中了,提取所有Physical Address 字段的最后xx-xx-xx-xx-xx-xx就可以了.
2.代码如下
Option Explicit
Dim objSWbemServices As SWbemServices
Dim objSWbemObjectSet As SWbemObjectSet
Dim objSWbemObject As SWbemObject
Private Type NetCard
Name As String
IPAdress As String
IpSubNets As String
IpGateWay As String
DnsString0 As String
DnsString1 As String
MacAdress As String
End Type
Dim MtNetCard() As NetCard
Private Sub Command1_Click()
Dim i As Long
For i = LBound(MtNetCard) To UBound(MtNetCard) - 1
Text1 = Text1 & "网卡： " & MtNetCard(i).Name & vbNewLine
Text1 = Text1 & "MAC： " & MtNetCard(i).MacAdress & vbNewLine
Next
Erase MtNetCard
End Sub
Private Sub Form_Load()
ReDim MtNetCard(0) As NetCard
Set objSWbemServices = GetObject("winmgmts:")
Set objSWbemObjectSet = objSWbemServices.ExecQuery("Select * From Win32_NetworkAdapterConfiguration Where IPEnabled=TRUE")
For Each objSWbemObject In objSWbemObjectSet
On Error Resume Next
MtNetCard(UBound(MtNetCard)).Name = objSWbemObject.Description '添加本机上已经安装了TCP/IP协议的网卡
MtNetCard(UBound(MtNetCard)).MacAdress = objSWbemObject.MacAddress(0)
ReDim Preserve MtNetCard(UBound(MtNetCard) + 1) As NetCard
Next
End Sub
应该看得懂吧,要一个窗口，一个文本框和一个按钮就可调试了。
直接搞硬盘序列号，省事省力，API就可以，方便多了 多谢各位的大力相助
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