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jbauer22

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How to check if a drive is mapped

I want a function that will check if a particular drive is currently mapped and return the drive mapping if it is or return "" if it isn't.  Something I can add a Drive letter parameter to like:

Msgbox DriveMapping("K")

and get a message box that returns something like "\\odinput\psreports" if mapped or "" if not.
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RichW
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'You need to have reference to Microsoft Scripting Runtime first.
'Place is listbox on your form
Private Sub cmdInfo_Click()
    '
    Dim fldr As Folder
    Dim fso As New FileSystemObject
    Dim drv As Drive
    '
    Set drv = fso.GetDrive(fso.GetDriveName("C:"))
    '
    With List1
        .AddItem "Available space: " & FormatNumber(drv.AvailableSpace / 1024, 0) & " BK"
        .AddItem "Drive letter: " & drv.DriveLetter
        .AddItem "Drive type: " & drv.DriveType
        .AddItem "Drive file system: " & drv.FileSystem
        .AddItem "Drive free space: " & FormatNumber(drv.FreeSpace / 1024, 0) & " BK"
        .AddItem "Drive is ready: " & drv.IsReady
        .AddItem "Drive path: " & drv.Path
        .AddItem "Root folder: " & drv.RootFolder
        .AddItem "Serial number: " & drv.SerialNumber
        .AddItem "Share name: " & drv.ShareName
        .AddItem "Total size: " & FormatNumber(drv.TotalSize / 1024, 0) & " BK"
        .AddItem "Volume  name : " & drv.VolumeName
    End With
    '
End Sub

RichW
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jbauer22

ASKER

Want a function, please
Avatar of Richie_Simonetti
I am not sure if i understood you:

Function IsLetterMapped(DriveLetter As String) As String
If Dir$(DriveLetter & ":\*.*", vbArchive) <> "" Then
    IsLetterMapped = DriveLetter & ":\"
Else
    IsLetterMapped = ""
End If

End Function


Private Sub Form_Load()
MsgBox IsLetterMapped("K")
End Sub
Richie,

If the Drive is not mapped then a Run-time error 68 will occur.  I tried this same method using the Dir function.  I suppose, I could use error handling to work this out.  I also wanted this function to return the current drive mapping if it was found.  Some string with the //Network...
ASKER CERTIFIED SOLUTION
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Richie_Simonetti
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Option Explicit

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

Debug.Print DriveExists("D:")
   
End Sub


Private Function DriveExists(SDrive As String) As Boolean

   Dim tmp As String
   Dim nBuffersize As Long
   
  'Call the API with a buffer size of 0.
  'The call fails, and the required size
  'is returned as the result.
   nBuffersize = GetLogicalDriveStrings(0&, tmp)

  'pad a string to hold the results
   tmp = Space$(nBuffersize)
   nBuffersize = Len(tmp)
   
  'and call again
   If GetLogicalDriveStrings(nBuffersize, tmp) Then
   
     'if the drive letter passed is in
     'the returned logical drive string,
     'return True. Use vbTextCompare for
     'a case-insensitive match (remembering
     'that when a compare method is specified,
     'the start position must also be specified.
      DriveExists = InStr(1, tmp, SDrive, vbTextCompare)

   End If
   
End Function

Hi hiranmaya, welcome to EE!
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Cheers and happy coding
Nice API but it doesn't return the network path. \\network\path
Nice API but it doesn't return the network path. \\network\path
Nice API but it doesn't return the network path. \\network\path
Wish I could figure out how to return the \\network\path given a drive letter.
Set a reference to the Microsoft Scripting Runtime object

Private Sub Command1_Click()
Dim strShareName As String
strShareName = GetMapping("K")
End Sub


Public Function GetMapping(ByVal varDrive As String) As String
Dim fldr As Folder
Dim fso As New FileSystemObject
Dim drv As Drive
   
On Error GoTo err_mapping
    Set drv = fso.GetDrive(fso.GetDriveName(varDrive & ":"))
     GetMapping = drv.ShareName
Exit Function
err_mapping:
    MsgBox UCase(varDrive) & ":" & "drive Not mapped"

End Function
Thanks RichW.  Created a new question with 25 points for you to collect.