VB.NET中如何获取硬盘信息
VB.NET中如何获取硬盘信息，很多新手对此不是很清楚，为了帮助大家解决这个难题，下面小编将为大家详细讲解，有这方面需求的人可以来学习下，希望你能有所收获。
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1、VB.NET获取硬盘信息之一：用API函数GetDiskFreeSpaceEx获取磁盘空间
Private Declare Function GetDiskFreeSpaceEx Lib "kernel32" Alias "GetDiskFreeSpaceExA" _ (ByVal lpDirectoryName As String, ByRef lpFreeBytesAvailableToCaller As Long, _ ByRef lpTotalNumberOfBytes As Long, ByRef lpTotalNumberOfFreeBytes As Long) As Long Private Sub btnDisk_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDisk.Click Dim BytesFreeToCalller As Long, TotalBytes As Long Dim TotalFreeBytes As Long, TotalBytesUsed As Long Dim strResult As String Const RootPathName = "C:\" Call GetDiskFreeSpaceEx(RootPathName, BytesFreeToCalller, TotalBytes, TotalFreeBytes) strResult = " Drive " & "C:\" & vbCrLf strResult += "磁盘容量(MB):" & Format(CDbl((TotalBytes / 1024) / 1024), "###,###,##0.00") & vbCrLf strResult += "可用空间(MB):" & Format(CDbl((TotalFreeBytes / 1024) / 1024), "###,###,##0.00") & vbCrLf strResult += "已用空间(MB):" & Format(CDbl(((TotalBytes - TotalFreeBytes) / 1024) / 1024), "###,###,##0.00") & vbCrLf MsgBox(strResult) End Sub
2、VB.NET获取硬盘信息之二：用FSO(文件系统对象模型)实现
FSO对象模型包含在SCRIPTING类型库(SCRRUN.DLL)中。在项目菜单中选择引用，在COM中选择Microsoft Scripting Runtime在代码最顶端添加Imports Scripting，在按钮的单击事件中加入以下代码：
Imports Scripting
Private Sub btnFso_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles btnFso.ClickDim Fso As New FileSystemObject
Dim drvDisk As Drive, strResult As String
drvDisk = Fso.GetDrive("C:\")
strResult = "Drive " & "C:\" & vbCrLf
strResult += "磁盘卷标:" & drvDisk.VolumeName & vbCrLf
strResult += "磁盘序列号:" & drvDisk.SerialNumber & vbCrLf
strResult += "磁盘类型:" & drvDisk.DriveType & vbCrLf
strResult += "文件系统:" & drvDisk.FileSystem & vbCrLf
strResult += "磁盘容量(G): " & FormatNumber(((drvDisk.TotalSize / 1024) / 1024) / 1024, 2,
Microsoft.VisualBasic.TriState.True) & vbCrLfstrResult += "可用空间(G): " & FormatNumber(((drvDisk.FreeSpace / 1024) / 1024) / 1024, 2,
Microsoft.VisualBasic.TriState.True) & vbCrLfstrResult += "已用空间(G):" & FormatNumber(((((drvDisk.TotalSize - drvDisk.FreeSpace) /
1024) / 1024) / 1024), 2, , , Microsoft.VisualBasic.TriState.True)MsgBox(strResult)
End Sub
3、VB.NET获取硬盘信息之三：用API函数GetVolumeInformation获取逻辑盘序列号
Private Declare Function GetVolumeInformation Lib "kernel32" Alias "GetVolumeInformationA"
_(ByVal lpRootPathName As String, ByVal lpVolumeNameBuffer As String, ByVal _nVolumeNameSize
As Integer, ByRef lpVolumeSerialNumber As Long, _ByVal lpMaximumComponentLength As Integer,
ByVal lpFileSystemFlags As Integer, ByVal _lpFileSystemNameBuffer As String,
ByVal nFileSystemNameSize As Integer) As Integer
Private Sub Button2_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles Button2.ClickDim SerialNumber As Long
Dim TempStr1 As New String(Chr(0), 255)
Dim TempStr2 As New String(Chr(0), 255)
Dim TempInt1, TempInt2 As Integer
GetVolumeInformation("C:\", TempStr1, 256, SerialNumber, TempInt1, TempInt2, TempStr2, 256)
MsgBox("C盘序列号:" & SerialNumber)
End Sub
4、VB.NET获取硬盘信息之四：利用WMI获取硬盘信息
Windows Management Instrumentation (WMI) 是可伸缩的系统管理结构，它采用一个统一的、基于标准的、可扩展的面向对象接口。WMI 为您提供与系统管理信息和基础 WMI API 交互的标准方法。WMI 主要由系统管理应用程序开发人员和管理员用来访问和操作系统管理信息。我们需要使用.net Framwork里面System.Management命名空间下提供的类来实现。
Private Sub Button3_Click(ByVal sender As System.Object,
ByVal e As System.EventArgs) Handles Button3.ClickDim disk As ManagementBaseObject
Dim strResult As String
Dim diskClass = New ManagementClass("Win32_LogicalDisk")
Dim disks As ManagementObjectCollection
disks = diskClass.GetInstances()
For Each disk In disks
strResult = ""
strResult += "设备ID:" & disk("DeviceID") & vbCrLf
strResult += "磁盘名称:" & disk("Name") & vbCrLf
strResult += "磁盘卷标:" & disk("VolumeName") & vbCrLf
If disk("FileSystem") <> "" Then strResult += "文件系统:" & disk("FileSystem") & vbCrLf
strResult += "磁盘描述:" & disk("Description") & vbCrLf
If System.Convert.ToInt64(disk("Size")) > 0 Then
strResult += "磁盘大小:" & System.Convert.ToInt64(disk("Size").ToString()) & vbCrLf
strResult += "磁盘类型:" & System.Convert.ToInt16(disk("DriveType").ToString())
End If
MsgBox(strResult)
Next
End Sub
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标题名称：VB.NET中如何获取硬盘信息
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