PathCommonPrefixA function

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

Syntax

int PathCommonPrefixA(
  LPCSTR pszFile1,
  LPCSTR pszFile2,
  LPSTR  achPath
);

Parameters

pszFile1

Type: LPCTSTR

A pointer to a null-terminated string of length MAX_PATH that contains the first path name.

pszFile2

Type: LPCTSTR

A pointer to a null-terminated string of length MAX_PATH that contains the second path name.

achPath

Type: LPTSTR

A pointer to a buffer that receives the common prefix. This buffer must be at least MAX_PATH characters in size. If there is no common prefix, it is set to NULL.

Return Value

Type: int

Returns the count of common prefix characters in the path. If the output buffer pointer is not NULL, then these characters are copied to the output buffer.

Requirements

   
Minimum supported client Windows 2000 Professional, Windows XP [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header shlwapi.h
Library Shlwapi.lib
DLL Shlwapi.dll (version 4.71 or later)