pinvoke.net: Edit: shlwapi.PathCommonPrefix

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Summary: Compares two paths to determine if they share a common prefix. A prefix is one of these types: "C:\\", ".", "..", "..\\".

!!!!C# Signature:
 [DllImport("shlwapi.dll", CharSet=CharSet.Auto)]
 static extern Int32 PathCommonPrefix(
	[In] String pszFile1,
	[In] String pszFile2,
	[Out] StringBuilder pszPath
	);
!!!!VB Signature:
Declare Function PathCommonPrefix Lib "shlwapi.dll" Alias "PathCommonPrefixA" (ByVal pszFile1 As String, ByVal pszFile2 As String, ByVal pszPath As String) As Long
!!!!User-Defined Types:
None.

!!!!Notes:
pszPath may be null, but must have a capacity of at least MAX_PATH - 1 if supplied. The return value is the length of the common prefix.

!!!!Tips & Tricks:
Please add some!

!!!!Sample Code:
 StringBuilder str = new StringBuilder(MAX_PATH);
 Int32 nRet = PathCommonPrefix( 
	@"C:\win\desktop\temp.txt",
	@"c:\win\tray\sample.txt",
	str
	);
 // Result: nRet == 6 && str.ToString() == @"C:\win"
!!!!Alternative Managed API:
Do you know one?  Please contribute it!

Documentation: MSDN http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/shell/reference/shlwapi/path/pathremovefilespec.asp