VB.Net find Hard Disk Number (Like in Disk Manager)

I need a way to determine the Disk Number of a drive based on it's letter.

For example, if you open 'Computer Management', then got to 'Disk Management', then look at the listing of drives (on the bottom), they are 'Disk 0', 'Disk 1', and so on. (or right-click the 'Disk 0', go to properties, then click the 'Volumes' tab - look at 'Disk:' - that's the number I need - same as the other area)

I need to be able to determine the disk number by drive letter, for hard disks and memory cards.

(This number will be passed to Ghost to backup the disk)
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JackOfPHConnect With a Mentor Commented:
Try this one...

Private Declare Function GetVolumeInformation Lib _
"kernel32.dll" Alias "GetVolumeInformationA" (ByVal _
lpRootPathName As String, ByVal lpVolumeNameBuffer As _
String, ByVal nVolumeNameSize As Integer, _
lpVolumeSerialNumber As Long, lpMaximumComponentLength _
As Long, lpFileSystemFlags As Long, ByVal _
lpFileSystemNameBuffer As String, ByVal _
nFileSystemNameSize As Long) As Long

Function GetSerialNumber(strDrive As String) As Long
Dim SerialNum As Long
Dim Res As Long
Dim Temp1 As String
Dim Temp2 As String
Temp1 = String$(255, Chr$(0))
Temp2 = String$(255, Chr$(0))

Res = GetVolumeInformation(strDrive, Temp1, _
Len(Temp1), SerialNum, 0, 0, Temp2, Len(Temp2))

GetSerialNumber = SerialNum

End Function

Private Sub cmdSerial_Click()
Call MsgBox(GetSerialNumber("C:\"))
End Sub
Crazy_PenguinsAuthor Commented:
Not quite what I am after, perhaps if you look at this picture - I want where it says "Disk 2"
Crazy_PenguinsAuthor Commented:
After much trial and error, error, error I found out that Ghost does not want that drive ID anyhow.
Got my solution by just running GDISK32.exe (with ghost) and will get my list that way - below is a sample output.

Thanks for the input,

Disk  Partitions  Cylinders  Heads  Sectors  Mbytes  Model
  1        1        60801     255      63  476940.0  Hitachi HDP725050GLA GM4O
  2        1        24321     255      63  190782.2  MAXTOR S TM3200820AS 3.AA
  3        2        14593     255      63  114473.5  Maxtor OneTouch 0125

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Crazy_PenguinsAuthor Commented:
Thanks for looking
This question is closed but for the question PAQ. Use IOCTL_STORAGE_GET_DEVICE_NUMBER
Option Explicit
Private Const FILE_DEVICE_CD_ROM As Long = &H2
Private Const FILE_DEVICE_DISK As Long = &H7
Private Const INVALID_HANDLE_VALUE As Long = (-1)
Private Const FILE_SHARE_READ As Long = &H1
Private Const FILE_SHARE_WRITE As Long = &H2
Private Const OPEN_EXISTING As Long = 3
DeviceType As Long 'Specifies one of the system-defined FILE_DEVICE_XXX constants
DeviceNumber As Long 'Indicates the number of this device.
PartitionNumber As Long
End Type
Private Declare Function DeviceIoControl Lib "kernel32" (ByVal hDevice As Long, ByVal dwIoControlCode As Long, ByVal lpInBuffer As Long, ByVal nInBufferSize As Long, ByVal lpOutBuffer As Long, ByVal nOutBufferSize As Long, lpBytesReturned As Long, ByVal lpOverlapped As Long) As Long
Private Declare Function CreateFileW Lib "kernel32" (ByVal lpFileName As Long, 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
Sub GetStorageDeviceNumber(ByVal Device As String)
  ' Device: The device letter or volume guid. example. c: or d:
  Dim hDevice As Long
  Dim cbRead As Long
  ' The dwDesiredAccess parameter can be zero, allowing the application to query device attributes without accessing a device.
  ' It can also be used for reading statistics without requiring higher-level data read/write permission.
  hDevice = CreateFileW(StrPtr("\\.\" & Device), 0, FILE_SHARE_READ Or FILE_SHARE_WRITE, 0, OPEN_EXISTING, 0, 0)
    Exit Sub
  End If
  If DeviceIoControl(hDevice, IOCTL_STORAGE_GET_DEVICE_NUMBER, ByVal 0, 0, VarPtr(sdn), LenB(sdn), cbRead, 0) Then
    ' http://msdn.microsoft.com/en-us/library/ms794701.aspx
    Select Case sdn.DeviceType
        MsgBox "CDROM " & sdn.DeviceNumber
        MsgBox "DISK " & sdn.DeviceNumber & " (Partition)= " & sdn.PartitionNumber
    End Select
  End If
  ' cleanup
  CloseHandle hDevice
End Sub

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