读取本机硬件信息的VBA代码    
如何在VB或者VBA代码中读取诸如硬盘或者CPU等硬件设备的序列号这一类信息
1. 在我的机器上运行的效果。我这个例子读取了四部分信息(CPU,物理硬盘,逻辑磁盘,网卡)
 
 
2.代码如下。代码的原理是使用WMI接口。需要管理员权限才能执行该代码
  
Private Type OSVERSIONINFO
  dwOSVersionInfoSize   As Long
  dwMajorVersion   As Long
  dwMinorVersion   As Long
  dwBuildNumber   As Long
  dwPlatformId   As Long
  szCSDVersion   As String * 128                   '     Maintenance   string   for   PSS   usage
  End Type
  Private Declare Function GetVersionEx Lib "kernel32" Alias "GetVersionExA" (lpVersionInformation As OSVERSIONINFO) As Long
  Private Declare Function GetComputerName Lib "kernel32" Alias "GetComputerNameA" (ByVal lPBuffer As String, nSize As Long) As Long
  Private Const VER_PLATFORM_WIN32_NT = 2
  Private Const VER_PLATFORM_WIN32_Windows = 1
  Private Const VER_PLATFORM_WIN32s = 0
  '''这个范例程序是读取CPU,物理硬盘,逻辑磁盘,和网卡的有关序列号的
  '''作者:陈希章
  '''时间:2009年6月2日
  Sub Test()
  Dim len5     As Long, aa       As Long
  Dim cmprName     As String
  Dim osver     As OSVERSIONINFO
  '取得Computer   Name
  cmprName = String(255, 0)
  len5 = 256
  aa = GetComputerName(cmprName, len5)
  cmprName = Left(cmprName, InStr(1, cmprName, Chr(0)) - 1)
  Computer = cmprName                     '取得CPU端口号
  ActiveCell.Worksheet.Cells.Clear
  Dim rng As Range
  Set rng = Range("B7")
  rng.Font.Bold = True
  rng.Value = "CPU"
  Set rng = rng.Offset(1)
  Set CPUs = GetObject("winmgmts:{impersonationLevel=impersonate}!\\" & Computer & "\root\cimv2").ExecQuery("select   *   from   Win32_Processor")
  For Each mycpu In CPUs
  rng.Value = mycpu.processorid
  Set rng = rng.Offset(1)
  Next
  rng.Value = "Hard Disk"
  rng.Offset(, 1).Value = "Media Type"
  rng.Resize(, 2).Font.Bold = True
  Set rng = rng.Offset(1)
  Set disks = GetObject("winmgmts:{impersonationLevel=impersonate}!\\" & Computer & "\root\cimv2").ExecQuery("select   *   from   Win32_DiskDrive")
  For Each disk In disks
  rng.Value = disk.pnpdeviceid
  rng.Offset(, 1).Value = disk.mediatype
  Set rng = rng.Offset(1)
  Next
  Set hds = GetObject("winmgmts:{impersonationLevel=impersonate}!\\" & Computer & "\root\cimv2").ExecQuery("select   *   from  Win32_LogicalDisk")
  rng.Value = "Logic Disk Caption"
  rng.Offset(, 1).Value = "VolumeSerialNumber"
  rng.Resize(, 2).Font.Bold = True
  Set rng = rng.Offset(1)
  For Each hd In hds
  rng.Value = hd.Caption
  rng.Offset(, 1).Value = hd.VolumeSerialNumber
  Set rng = rng.Offset(1)
  Next
  Set networks = GetObject("winmgmts:{impersonationLevel=impersonate}!\\" & Computer & "\root\cimv2").ExecQuery("select   *   from  Win32_NetworkAdapter")
  rng.Value = "Caption"
  rng.Offset(, 1).Value = "MAC Address"
  rng.Offset(, 2).Value = "PNPDeviceID"
  rng.Resize(, 3).Font.Bold = True
  Set rng = rng.Offset(1)
  For Each network In networks
  rng.Value = network.Caption
  rng.Offset(, 1).Value = network.macaddress
  rng.Offset(, 2).Value = network.pnpdeviceid
  Set rng = rng.Offset(1)
  Next
  End Sub
 

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