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Retrieving Volume Information and checking if a CD is in the drive

This tip demonstrates how you can receive lots of information about a drive, including the Volume name and number. You can also retrieve information about the type of drive (hard disk, cdrom, removable, etc.)

Module Code:
Add the following code to a module:

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

Declare Function GetDriveType Lib "kernel32" _
Alias "GetDriveTypeA" (ByVal nDrive As String) As Long

Public Const DRIVE_CDROM = 5

Form Code:
Add one command button to a form with the following code:

Private Sub Command1_Click()

Dim VolName As String, FSys As String, erg As Long
Dim VolNumber As Long, MCM As Long, FSF As Long
Dim Drive As String, DriveType As Long

VolName = Space(127)
FSys = Space(127)

Drive = "F:\" 'Enter the driverletter you want

DriveType& = GetDriveType(Drive$)

erg& = GetVolumeInformation(Drive$, VolName$, 127&, _
VolNumber&, MCM&, FSF&, FSys$, 127&)

Print "VolumeName:" & vbTab & VolName$
Print "VolumeNumber:" & vbTab & VolNumber&
Print "MCM:" & vbTab & vbTab & MCM&
Print "FSF:" & vbTab & vbTab & FSF&
Print "FileSystem:" & vbTab & FSys$
Print "DriveType:" & vbTab & DriveType&;

'Is the drive a CDROM, if so, check for a CD

If DriveType& = DRIVE_CDROM Then
  Print " (CDROM, ";

  If erg& = 0 Then
    Print "no CD in the drive)"
  Else
    Print "CD in the drive)"
  End If

Else

  Print " (NO CDROM)"

End If

End Sub

 

 


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