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Private Function 硬盘序列号() As String
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Try
Dim myInfo As Microsoft.Win32.RegistryKey = My.Computer.Registry.LocalMachine.OpenSubKey("HARDWARE\DEVICEMAP\Scsi\Scsi Port 0\Scsi Bus 1\Target Id 0\Logical Unit Id 0")
硬盘序列号 = Trim(myInfo.GetValue("SerialNumber"))
Catch
Try
Dim myInfo As Microsoft.Win32.RegistryKey = My.Computer.Registry.LocalMachine.OpenSubKey("HARDWARE\DEVICEMAP\Scsi\Scsi Port 1\Scsi Bus 1\Target Id 0\Logical Unit Id 0")
硬盘序列号 = Trim(myInfo.GetValue("SerialNumber"))
Catch
硬盘序列号 = ""
End Try
End Try
End Function
试下，如果返回为空，则表示失败。
在本机win8win8.1有效，不过好像在有些机器上没用。
首先使用 System.IO.DriveInfo.GetDrives()获取System.IO.DriveInfo，存入ds()
然后遍历ds，获取各个信息部分。
Dim ds() As System.IO.DriveInfo = System.IO.DriveInfo.GetDrives()
For i As Integer = 0 To ds.Length - 1
TextBox1.Text = TextBox1.Text + ds(i).DriveType.ToString + " " '驱动器类型
TextBox1.Text = TextBox1.Text + ds(i).Name + " " '盘符（驱动器名）
TextBox1.Text = TextBox1.Text + ds(i).IsReady.ToString + " " '是否就绪
If ds(i).IsReady = True Then
TextBox1.Text = TextBox1.Text + ds(i).VolumeLabel + " " '卷标
TextBox1.Text = TextBox1.Text + ds(i).TotalSize.ToString + " " '驱动器容量
TextBox1.Text = TextBox1.Text + ds(i).TotalFreeSpace.ToString '驱动器可用容量
End If
TextBox1.Text = TextBox1.Text + vbNewLine
Next
vb6读取win10下硬盘序列号方法如下：
1、是指硬盘物理序列号，格式化没有变化。
2、支持vista 及win10系统。
3、支持多块硬盘（有的电脑装有几块硬盘）
4、支持串口及并口硬盘。
5、最好是源码或dll 等，代码如下：
Visual Basic code
'-------------------添加类模块clsMainInfo-------------------------
Option Explicit
Private Const VER_PLATFORM_WIN32S = 0
Private Const VER_PLATFORM_WIN32_WINDOWS = 1
Private Const VER_PLATFORM_WIN32_NT = 2
Private Const DFP_RECEIVE_DRIVE_DATA = H7C088
Private Const FILE_SHARE_READ = H1
Private Const FILE_SHARE_WRITE = H2
Private Const GENERIC_READ = H80000000
Private Const GENERIC_WRITE = H40000000
Private Const OPEN_EXISTING = 3
Private Const Create_NEW = 1
Private Enum HDINFO
HD_MODEL_NUMBER
HD_SERIAL_NUMBER
HD_FIRMWARE_REVISION
End Enum
Private Type OSVERSIONINFO
dwOSVersionInfoSize As Long
dwMajorVersion As Long
dwMinorVersion As Long
dwBuildNumber As Long
dwPlatformId As Long
szCSDVersion As String * 128
End Type
Private Type IDEREGS
bFeaturesReg As Byte
bSectorCountReg As Byte
bSectorNumberReg As Byte
bCylLowReg As Byte
bCylHighReg As Byte
bDriveHeadReg As Byte
bCommandReg As Byte
bReserved As Byte
End Type
Private Type SENDCMDINPARAMS
cBufferSize As Long
irDriveRegs As IDEREGS
bDriveNumber As Byte
bReserved(1 To 3) As Byte
dwReserved(1 To 4) As Long
End Type
Private Type DRIVERSTATUS
bDriveError As Byte
bIDEStatus As Byte
bReserved(1 To 2) As Byte
dwReserved(1 To 2) As Long
End Type
Private Type SENDCMDOUTPARAMS
cBufferSize As Long
DStatus As DRIVERSTATUS
bBuffer(1 To 512) As Byte
End Type
Private Declare Function GetVersionEx _
Lib "kernel32" Alias "GetVersionExA" _
(lpVersionInformation As OSVERSIONINFO) As Long
Private Declare Function CreateFile _
Lib "kernel32" Alias "CreateFileA" _
(ByVal lpFileName As String, _
ByVal dwDesiredAccess As Long, _
ByVal dwShareMode As Long, _
ByVal lpSecurityAttributes As Long, _
ByVal dwCreationDisposition As Long, _
ByVal dwFlagsAndAttributes As Long, _
ByVal hTemplateFile As Long) As Long
Private Declare Function CloseHandle _
Lib "kernel32" _
(ByVal hObject As Long) As Long
Private Declare Function DeviceIoControl _
Lib "kernel32" _
(ByVal hDevice As Long, _
ByVal dwIoControlCode As Long, _
lpInBuffer As Any, _
ByVal nInBufferSize As Long, _
lpOutBuffer As Any, _
ByVal nOutBufferSize As Long, _
lpBytesReturned As Long, _
ByVal lpOverlapped As Long) As Long
Private Declare Sub ZeroMemory _
Lib "kernel32" Alias "RtlZeroMemory" _
(dest As Any, _
ByVal numBytes As Long)
Private Declare Sub CopyMemory _
Lib "kernel32" Alias "RtlMoveMemory" _
(Destination As Any, _
Source As Any, _
ByVal Length As Long)
Private Declare Function GetLastError _
Lib "kernel32" () As Long
Private mvarCurrentDrive As Byte
Private mvarPlatform As String
Public Function GetModelNumber() As String
GetModelNumber = CmnGetHDData(HD_MODEL_NUMBER)
End Function
Public Function GetSerialNumber() As String
GetSerialNumber = CmnGetHDData(HD_SERIAL_NUMBER)
End Function
Public Function GetFirmwareRevision() As String
GetFirmwareRevision = CmnGetHDData(HD_FIRMWARE_REVISION)
End Function
Public Property Let CurrentDrive(ByVal vData As Byte)
If vData 0 Or vData 3 Then
Err.Raise 10000, , "Illegal Drive Number"
End If
mvarCurrentDrive = vData
End Property
Public Property Get CurrentDrive() As Byte
CurrentDrive = mvarCurrentDrive
End Property
Public Property Get Platform() As String
Platform = mvarPlatform
End Property
Private Sub Class_Initialize()
Dim OS As OSVERSIONINFO
OS.dwOSVersionInfoSize = Len(OS)
Call GetVersionEx(OS)
mvarPlatform = "Unk"
Select Case OS.dwPlatformId
Case Is = VER_PLATFORM_WIN32S
mvarPlatform = "32S"
Case Is = VER_PLATFORM_WIN32_WINDOWS
If OS.dwMinorVersion = 0 Then
mvarPlatform = "W95"
Else
mvarPlatform = "W98"
End If
Case Is = VER_PLATFORM_WIN32_NT
mvarPlatform = "WNT"
End Select
End Sub
Private Function CmnGetHDData(hdi As HDINFO) As String
Dim bin As SENDCMDINPARAMS
Dim bout As SENDCMDOUTPARAMS
Dim hdh As Long
Dim br As Long
Dim ix As Long
Dim hddfr As Long
Dim hddln As Long
Dim s As String
Select Case hdi
Case HD_MODEL_NUMBER
hddfr = 55
hddln = 40
Case HD_SERIAL_NUMBER
hddfr = 21
hddln = 20
Case HD_FIRMWARE_REVISION
hddfr = 47
hddln = 8
Case Else
Err.Raise 10001, "Illegal HD Data type"
End Select
Select Case mvarPlatform
Case "WNT"
hdh = CreateFile("\\.\PhysicalDrive" mvarCurrentDrive, GENERIC_READ + GENERIC_WRITE, FILE_SHARE_READ + FILE_SHARE_WRITE, 0, OPEN_EXISTING, 0, 0)
Case "W95", "W98"
hdh = CreateFile("\\.\Smartvsd", 0, 0, 0, Create_NEW, 0, 0)
Case Else
Err.Raise 10002, , "Illegal platform (only WNT, W98 or W95)"
End Select
If hdh = 0 Then
Err.Raise 10003, , "Error on CreateFile"
End If
ZeroMemory bin, Len(bin)
ZeroMemory bout, Len(bout)
With bin
.bDriveNumber = mvarCurrentDrive
.cBufferSize = 512
With .irDriveRegs
If (mvarCurrentDrive And 1) Then
.bDriveHeadReg = HB0
Else
.bDriveHeadReg = HA0
End If
.bCommandReg = HEC
.bSectorCountReg = 1
.bSectorNumberReg = 1
End With
End With
DeviceIoControl hdh, DFP_RECEIVE_DRIVE_DATA, bin, Len(bin), bout, Len(bout), br, 0
s = vbNullString
For ix = hddfr To hddfr + hddln - 1 Step 2
If bout.bBuffer(ix + 1) = 0 Then Exit For
s = s Chr(bout.bBuffer(ix + 1))
If bout.bBuffer(ix) = 0 Then Exit For
s = s Chr(bout.bBuffer(ix))
Next ix
CloseHandle hdh
CmnGetHDData = Trim(s)
End Function
Visual Basic code
Option Explicit
'纯vb的获取硬盘序列号代码 (摘自枕善居)
'窗体放置1个ComBox,命名为cbDrive，1个ListBox,命名为lstMain，一个CommandButton,命名为cmdGo,添加如下代码
Dim h As clsMainInfo
Private Sub cmdGo_Click()
Dim hT As Long
Dim uW() As Byte
Dim dW() As Byte
Dim pW() As Byte
Set h = New clsMainInfo
With h
.CurrentDrive = Val(cbDrive.Text)
lstMain.Clear
lstMain.AddItem "当前驱动器: " .CurrentDrive
lstMain.AddItem ""
lstMain.AddItem "硬盘型号: " .GetModelNumber
lstMain.AddItem "序列号: " .GetSerialNumber
lstMain.AddItem "固件版本: " .GetFirmwareRevision
End With
Set h = Nothing
End Sub
Private Sub Form_Load()
cbDrive.AddItem 0
cbDrive.AddItem 1
cbDrive.AddItem 2
cbDrive.AddItem 3
cbDrive.ListIndex = 0
End Sub
strResult += 磁盘类型: System.Convert.ToInt16(disk(DriveType).ToString())End IfMsgBox(strResult)NextEnd Sub总结：在VB.NET中，用API函数可以获取硬盘信息。原来熟悉API函数VB6程序员，可以对API函数声明进行适当的更改后，进行调用。利用FSO（文件系统对象）的Scrrun.DLL，也可以获得磁盘信息。在.net Framwork中，利用WMI可以获取更多的关于机器硬件的详细信息（参考System.Management命名空间）。
楼上的朋友可能有点小小的误会楼主的意思了，
楼主朋友可能要现在已经分好区的空间大小，已用空间、剩余空间。
当然我也不敢保证谁对谁错，
我还是把我的理解 然后 也把代码贴出来让楼主看看吧
下面代码的功能：显示光驱当前分区，以及各个盘的总空间，剩余空间。
当然。如果要硬盘总空间，我们可以把所有空间加起来，就达到要求了。
希望下面的代码对楼主有用！
'硬盘空间大小 以及光驱
'添加Drive1 Label1 Label2
Private Declare Function GetDiskFreeSpace Lib "kernel32" Alias "GetDiskFreeSpaceA" (ByVal lpRootPathName As String, lpSectorsPerCluster As Long, lpBytesPerSector As Long, lpNumberOfFreeClusters As Long, lpTtoalNumberOfClusters As Long) As Long
Private Declare Function GetDriveType Lib "kernel32" Alias "GetDriveTypeA" (ByVal nDrive As String) As Long
Const DRIVE_CDROM = 5
Public drivenm As String, cddrive As String
Private Sub Form_Load()
'查找CD-ROM的驱动器号
cddrive = ""
For i = 65 To 90
If GetDriveType(Chr$(i) ":\") = DRIVE_CDROM Then
cddrive = UCase(Chr$(i)) ":\"
Exit For
End If
Next i
drivenm = "c:"
Label1.AutoSize = True
Label2.AutoSize = True
Drive1.Left = (Me.Width - Drive1.Width) \ 2
Drive1.Drive = "c"
Me.Move (Screen.Width - Me.Width) \ 2, (Screen.Height - Me.Height) \ 2
gethd
End Sub
Private Sub Form_Activate()
MsgBox "你的光驱在:" cddrive
End Sub
Private Sub Drive1_Change()
drivenm = Mid(Drive1.Drive, 1, 3)
gethd
End Sub
Private Sub gethd() '得知硬盘容量
On Error Resume Next
Dim dfs, cl1, cl2, sec1, byt1, tspace, getdiskvolm, lSize, kk%
Dim hdtype$, hdspace$, hdfspace$
dfs = GetDiskFreeSpace(drivenm, sec1, byt1, cl1, cl2)
If dfs Then
cl2 = Int(cl2 * sec1 / 1024 * byt1)
lSize = Len(Format$(cl2, "#########"))
If lSize 11 Then
kk = 11 - lSize
End If
hdspace = Space(kk) + Format$(cl2, "#########") + " KBytes"
cl1 = Int(cl1 * sec1 / 1024 * byt1)
lSize = Len(Format$(cl1, "#########"))
If lSize 11 Then
kk = 11 - lSize
End If
hdfspace = Space(kk) + Format$(cl1, "#########") + " KBytes"
Else
hdspace = ""
hdfspace = ""
End If
Label1.Caption = "你的" drivenm "盘的总空间是:" Format(Str(Val(hdspace) / 1024 / 1024), "##0.0") + " G"
Label2.Caption = "你的" drivenm "盘剩余空间是:" Format(Str(Val(hdfspace) / 1024), "###,##0.0") + " M"
If UCase(Left(Drive1.Drive, 2)) = UCase(Left(cddrive, 2)) Then
If Val(Label1.Caption) = 0 And Val(Label2.Caption) = 0 Then
MsgBox "这张盘是空的光盘"
Else
If Val(Label1.Caption) 0 And Val(Label2.Caption) 0 Then
MsgBox "这张盘不是空的光盘,但还有空间"
Else
If Val(Label1.Caption) 0 And Val(Label2.Caption) = 0 Then
MsgBox "这张盘是写满并终止的光盘"
End If
End If
End If
End If
End Sub