Find all Drives on a Computer

How do you look up what drives are available on a user's computer? I'm trying to find out what drive letters are available so I can search for files.

Thanks

[Aaron Young]

Use the GetLogicalDriveStrings API, i.e.

In a Module:

Private Declare Function GetLogicalDriveStrings Lib "kernel32" Alias "GetLogicalDriveStringsA" (ByVal nBufferLength As Long, ByVal lpBuffer As String) As Long

Public Function GetDrives() As Variant
    Dim sDrive() As String
    Dim sDrives As String
    Dim nDrives As Long
    
    sDrives = Space(255)
    sDrives = Left(sDrives, GetLogicalDriveStrings(255, sDrives))
    While Len(sDrives)
        ReDim Preserve sDrive(nDrives)
        sDrive(nDrives) = Left(sDrives, 3)
        nDrives = nDrives + 1
        sDrives = Mid(sDrives, 5)
    Wend
    GetDrives = sDrive
End Function

Example usage:

Private Sub Command1_Click()
    Dim vDrives As Variant
    Dim nDrive As Long
    
    vDrives = GetDrives
    For nDrive = 0 To UBound(vDrives)
        List1.AddItem vDrives(nDrive)
    Next
End Sub

[MartinLiss]

Dim nLetter As Integer
    Dim sDrive As String
    Dim lType As Long
    Dim intEntries As Integer
    Const HARD = 3
    Const A = 65
    Const Z = 90
  
    For nLetter = A To Z
        sDrive = Chr(nLetter)
        lType = GetDriveType(sDrive & ":\") ' API
        If lType = HARD Then
            frmResults.dirList.Path = sDrive & ":\"
            g_nDirs = g_nDirs + frmResults.dirList.ListCount
        End If
    Next

[Edited by MartinLiss on 06-15-2000 at 12:14 PM]