Serial number of Hard Disk or Hard Drive

Question

At first it may seems it is very easy question and some body may be trying to give me advice to try Google, it may be so. But for me it is very hard I have try Google, Stack

Answer 1

I took a look with ILSpy (http://ilspy.net/) to System.IO.DriveInfo class and I figured out this code that seems to work fine :

'------------------------------------------------------
' Declaration found in Microsoft.Win32.Win32Native
'------------------------------------------------------
Friend Declare Auto Function GetVolumeInformation Lib "kernel32.dll" (drive As String,  volumeName As StringBuilder, volumeNameBufLen As Integer,  ByRef volSerialNumber As Integer,  ByRef maxFileNameLen As Integer,  ByRef fileSystemFlags As Integer,  fileSystemName As StringBuilder, fileSystemNameBufLen As Integer) As Boolean

'------------------------------------------------------
' Test in my Form class
'------------------------------------------------------
Private Sub Button4_Click(sender As System.Object, e As System.EventArgs) Handles Button4.Click
    Try
        Dim volumeName As StringBuilder = New StringBuilder(50)
        Dim stringBuilder As StringBuilder = New StringBuilder(50)
        Dim volSerialNumber As Integer
        Dim maxFileNameLen As Integer
        Dim fileSystemFlags As Integer
        If Not GetVolumeInformation("C:\", volumeName, 50, volSerialNumber, maxFileNameLen, fileSystemFlags, stringBuilder, 50) Then
            Dim lastWin32Error As Integer = Marshal.GetLastWin32Error()
            MsgBox("Error number:" & lastWin32Error)
        Else
            MsgBox(volSerialNumber.ToString("X"))
        End If

    Catch ex As Exception
        MsgBox(ex.ToString())
    End Try
End Sub