Get a UNC path from a local Share?

I'm trying to determine the UNC PATH of a shared folder
which could be on a user's local machine OR is could be a mapped drive.

For example, on my pc named "MYPC", if I share a folder called "Junk", the correct UNC path would be "\\MYPC\Junk".

Also, if I map a different machine's drive/folder, I would expect the same kind of returned path.
For example, I map drive F: to a different machine named "THEIR_PC" and select a folder "their_folder".
The UNC Path would be "\\THEIR_PC\their_folder".

I'd like to be able to take a path from a CommonDialogBox and 'convert' it to the UNC path.

For example, the user opens the commondialog, and selects the local shared folder "C:\test_folder" on their machine "THEIR_PC"
I then convert "C:\test_folder" to: "\\THEIR_PC\test_folder"

Example 2:
The user opens the commondialog, and selects the mapped folder
"F:\sample" on a different machine named "ANOTHERPC"
I convert "F:\sample" to: "\\ANOTHERPC\sample".

(Did I beat the horse enough?)

maybe you could use this: This is code that gets the computername of a computer

VB Code:

Private Declare Function GetComputerName Lib "kernel32" Alias "GetComputerNameA" (ByVal lpBuffer As String, nSize As Long) As Long
Private Sub Form_Load()
    Dim strString As String
    'Create a buffer
    strString = String(255, Chr$(0))
    'Get the computer name
    GetComputerName strString, 255
    'remove the unnecessary chr$(0)'s
    strString = Left$(strString, InStr(1, strString, Chr$(0)) - 1)
    'Show the computer name
    MsgBox strString
End Sub

You said the first half of your problem was solved on your last thread, so here's how to solve the second half (getting the share name of mapped drives).

This requires a reference to Microsoft Scripting Runtime:

VB Code:

Dim oFSO As FileSystemObject
    Dim oDrive As Drive
    
    Set oFSO = New FileSystemObject
    
    For Each oDrive In oFSO.Drives
        If oDrive.DriveType = Remote Then
            MsgBox oDrive.DriveLetter & " = " & oDrive.ShareName
        End If
    Next
    
    Set oFSO = Nothing

So, when a folder is selected from the CommonDialog, you can first get the drive letter and modify the above code to see if it's a mapped drive. If not, then use the code in your other post to see if it's a shared folder.