Declare the API Function
Private Declare Function QueryDosDeviceW Lib "kernel32.dll" ( _ ByVal lpDeviceName As Long, _ ByVal lpTargetPath As Long, _ ByVal ucchMax As Long _ ) As Long Const MAX_PATH = 260
The following function accepts the drive as string and returns the device name
Public Function GetNtDeviceNameForDrive( _
ByVal sDrive As String) As String
Dim bDrive() As Byte
Dim bResult() As Byte
Dim lR As Long
Dim sDeviceName As String
If Right(sDrive, 1) = "\" Then
If Len(sDrive) > 1 Then
sDrive = Left(sDrive, Len(sDrive) - 1)
End If
End If
bDrive = sDrive
ReDim Preserve bDrive(0 To UBound(bDrive) + 2) As Byte
ReDim bResult(0 To MAX_PATH * 2 + 1) As Byte
lR = QueryDosDeviceW(VarPtr(bDrive(0)), VarPtr(bResult(0)), MAX_PATH)
If (lR > 2) Then
sDeviceName = bResult
sDeviceName = Left(sDeviceName, lR - 2)
GetNtDeviceNameForDrive = sDeviceName
End If
End Function
For example
Sub Trial()
MsgBox GetNtDeviceNameForDrive("c:")
End Sub
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