C# Signature:

/// <summary>
/// Removes all parts of the path except for the root information.
/// </summary>
/// <param name="pszPath">A pointer to a null-terminated string of length MAX_PATH that contains the path to be converted. When this function returns successfully, this string contains only the root information taken from that path.</param>
/// <returns>Returns TRUE if a valid drive letter was found in the path, or FALSE otherwise.</returns>
[DllImport("shlwapi.dll", EntryPoint = "PathStripToRootW",  SetLastError = true, CharSet = CharSet.Unicode)]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool PathStripToRoot([MarshalAs(UnmanagedType.LPTStr)]string pszPath);

VB.NET Signature:

''' <summary>
''' Removes all parts of the path except for the root information.
''' </summary>
''' <param name="pszPath">A pointer to a null-terminated string of length MAX_PATH that contains the path to be converted. When this function returns successfully, this string contains only the root information taken from that path.</param>
''' <returns>Returns TRUE if a valid drive letter was found in the path, or FALSE otherwise.</returns>
<DllImport("shlwapi.dll", EntryPoint:="PathStripToRootW",  SetLastError:=true, CharSet:=CharSet.Unicode)> _
Public Function PathStripToRoot(<MarshalAs(UnmanagedType.LPTStr)>pszPath As String) As <MarshalAs(UnmanagedType.Bool)>Boolean
End Function

VB Signature:

Public Declare Function PathStripToRoot Lib "shlwapi" Alias "PathStripToRootA" _
        (ByVal szRoot As String) As Long

User-Defined Types:

None.

Alternative Managed API:

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Notes:

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