Private Const DRIVE_UNKNOWN = 0
Private Const DRIVE_ABSENT = 1
Private Const DRIVE_REMOVABLE = 2
Private Const DRIVE_FIXED = 3
Private Const DRIVE_REMOTE = 4
Private Const DRIVE_CDROM = 5
Private Const DRIVE_RAMDISK = 6
' returns errors for UNC Path
Private Const ERROR_BAD_DEVICE = 1200&
Private Const ERROR_CONNECTION_UNAVAIL = 1201&
Private Const ERROR_EXTENDED_ERROR = 1208&
Private Const ERROR_MORE_DATA = 234
Private Const ERROR_NOT_SUPPORTED = 50&
Private Const ERROR_NO_NET_OR_BAD_PATH = 1203&
Private Const ERROR_NO_NETWORK = 1222&
Private Const ERROR_NOT_CONNECTED = 2250&
Private Const NO_ERROR = 0
Private Declare Function WNetGetConnection Lib "mpr.dll" Alias _
"WNetGetConnectionA" (ByVal lpszLocalName As String, _
ByVal lpszRemoteName As String, cbRemoteName As Long) As Long
Private Declare Function GetLogicalDriveStrings Lib "kernel32" Alias _
"GetLogicalDriveStringsA" (ByVal nBufferLength As Long, _
ByVal lpBuffer As String) As Long
Private Declare Function GetDriveType Lib "kernel32" Alias "GetDriveTypeA" _
(ByVal nDrive As String) As Long
Private Function fGetDrives() As String
'Returns all mapped drives
Dim lngRet As Long
Dim strDrives As String * 255
Dim lngTmp As Long
lngTmp = Len(strDrives)
lngRet = GetLogicalDriveStrings(lngTmp, strDrives)
fGetDrives = Left(strDrives, lngRet)
End Function
Private Function fGetUNCPath(strDriveLetter As String) As String
On Local Error GoTo fGetUNCPath_Err
Dim Msg As String, lngReturn As Long
Dim lpszLocalName As String
Dim lpszRemoteName As String
Dim cbRemoteName As Long
lpszLocalName = strDriveLetter
lpszRemoteName = String$(255, Chr$(32))
cbRemoteName = Len(lpszRemoteName)
lngReturn = WNetGetConnection(lpszLocalName, lpszRemoteName, _
cbRemoteName)
Select Case lngReturn
Case ERROR_BAD_DEVICE
Msg = "Error: Bad Device"
Case ERROR_CONNECTION_UNAVAIL
Msg = "Error: Connection Un-Available"
Case ERROR_EXTENDED_ERROR
Msg = "Error: Extended Error"
Case ERROR_MORE_DATA
Msg = "Error: More Data"
Case ERROR_NOT_SUPPORTED
Msg = "Error: Feature not Supported"
Case ERROR_NO_NET_OR_BAD_PATH
Msg = "Error: No Network Available or Bad Path"
Case ERROR_NO_NETWORK
Msg = "Error: No Network Available"
Case ERROR_NOT_CONNECTED
Msg = "Error: Not Connected"
Case NO_ERROR
' all is successful...
End Select
If Len(Msg) Then
MsgBox Msg, vbInformation
Else
fGetUNCPath = Left$(lpszRemoteName, cbRemoteName)
End If
fGetUNCPath_End:
Exit Function
fGetUNCPath_Err:
MsgBox Err.Description, vbInformation
Resume fGetUNCPath_End
End Function
Private Function fDriveType(strDriveName As String) As String
Dim lngRet As Long
Dim strDrive As String
lngRet = GetDriveType(strDriveName)
Select Case lngRet
Case DRIVE_UNKNOWN 'The drive type cannot be determined.
strDrive = "Unknown Drive Type"
Case DRIVE_ABSENT 'The root directory does not exist.
strDrive = "Drive does not exist"
Case DRIVE_REMOVABLE 'The drive can be removed from the drive.
strDrive = "Removable Media"
Case DRIVE_FIXED 'The disk cannot be removed from the drive.
strDrive = "Fixed Drive"
Case DRIVE_REMOTE 'The drive is a remote (network) drive.
strDrive = "Network Drive"
Case DRIVE_CDROM 'The drive is a CD-ROM drive.
strDrive = "CD Rom"
Case DRIVE_RAMDISK 'The drive is a RAM disk.
strDrive = "Ram Disk"
End Select
fDriveType = strDrive
End Function
Sub sListAllDrives()
Dim strAllDrives As String
Dim strTmp As String
strAllDrives = fGetDrives
If strAllDrives <> "" Then
Do
strTmp = Mid$(strAllDrives, 1, InStr(strAllDrives, vbNullChar) - 1)
strAllDrives = Mid$(strAllDrives, InStr(strAllDrives, vbNullChar) + 1)
Select Case fDriveType(strTmp)
Case "Removable Media":
Debug.Print "Removable drive : " & strTmp
Case "CD Rom":
Debug.Print " CD Rom drive : " & strTmp
Case "Fixed Drive":
Debug.Print " Local drive : " & strTmp
Case "Network Drive":
Debug.Print " Network drive : " & strTmp
Debug.Print " UNC Path : " & _
fGetUNCPath(Left$(strTmp, Len(strTmp) - 1))
End Select
Loop While strAllDrives <> ""
End If
End Sub
