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GetVolumeInformation (kernel32)
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C# Signature:
[DllImport("Kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
extern static bool GetVolumeInformation(
string RootPathName,
StringBuilder VolumeNameBuffer,
int VolumeNameSize,
out uint VolumeSerialNumber,
out uint MaximumComponentLength,
out uint FileSystemFlags,
StringBuilder FileSystemNameBuffer,
int nFileSystemNameSize);
VB Signature:
<System.Runtime.InteropServices.DllImport("Kernel32.dll", CharSet:=System.Runtime.InteropServices.CharSet.Auto, SetLastError:=True)> _
Public Shared Function GetVolumeInformation(ByVal RootPathName As String, ByVal VolumeNameBuffer As System.Text.StringBuilder, ByVal VolumeNameSize As Int32, ByRef VolumeSerialNumber As Int32, ByRef MaximumComponentLength As Int32, ByRef FileSystemFlags As Int32, ByVal FileSystemNameBuffer As System.Text.StringBuilder, ByVal nFileSystemNameSize As Int32) As Boolean
End Function
Private Function GetVolumeSerial(ByValDriveLetter As String) As String
'Check for valid drive letter argument.
Dim ValidDriveLetters As String = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
If ValidDriveLetters.IndexOf(DriveLetter) <> -1 Then
If DriveLetter.Length = 1 Then
Dim Disk As New System.Management.ManagementObject("Win32_LogicalDisk.DeviceID=""" & DriveLetter & ":""")
Dim DiskProperty As System.Management.PropertyData
For Each DiskProperty In Disk.Properties
If DiskProperty.Name = "VolumeSerialNumber" Then
Return DiskProperty.Value.ToString '.ToString 'Return the volume serial number.
End If
Next DiskProperty
End If
End If
Return Nothing 'Invalid drive letter.
End Function
Do you know one? Please contribute it!
The GetVolumeInformation API
9/22/2016 4:22:47 PM - -213.79.90.226
ByVal is a VB keyword that specifies a variable to be passed as a parameter BY VALUE. In other words, if the function or sub changes the value of the internal variable, it does not change the value of the external variable that was passed to it.
4/25/2007 3:19:55 AM - josep1er@cmich.edu-141.209.229.179
TODO - a short description
3/31/2008 9:16:38 AM - anonymous
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