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This issue introduces a class to gather the volume information of a disk drive. It accomplishes this task by using an API call, GetVolumeInformation.
There are two properties in the cVolumeInfo class that are necessary to gather volume information. The Drive property defines the disk drive you want to gather the volume information for. An example of this would be Drive = "C" or Drive="C:". The Label property will return the Volume Label found for the Drive specified in the Drive property. If it is unable to determine the volume label it will return a blank volume label. This routine does not currently work for network volumes. A blank volume label will be returned for network volumes. If the GetVolumeInformation API returns an unhandled error, it will be passed back to the caller when the Drive property is called.
Public Property Let Drive(sDrive As String) Public Property Get Label() As String
On frmDriveType we created a ListView control called lvDrives. We also created a command button called cmdClose. This sample will scan all drives looking for volume labels
Private Sub cmdClose_Click() Unload Me End Sub Private Sub Form_Load() SetupForm ShowVolInfo End Sub Private Sub SetupForm() With lvDrives .ColumnHeaders.Add , "Drive", "Drive" .ColumnHeaders.Add , "Volume Label", "Volume Label" .Sorted = True .SortKey = 0 .View = lvwReport End With End Sub Private Sub ShowVolInfo() Dim x As Integer Dim itm As ListItem Dim sDrive As String Dim lDriveType As Long Dim sDriveTypeDesc As String lvDrives.ListItems.Clear For x = 65 To 90 ' drives A to Z sDrive = Chr$(x) Dim vol As New cVolumeInfo vol.Drive = sDrive ' only add drives that have labels If vol.Label <> "" Then Set itm = lvDrives.ListItems.Add(, sDrive, sDrive) itm.SubItems(1) = vol.Label End If Set vol = Nothing Next End Sub
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