Compares two paths to determine if they share a common prefix. A prefix is one of these types: "C:\", ".", "..", "..\".
int PathCommonPrefixA( LPCSTR pszFile1, LPCSTR pszFile2, LPSTR achPath );
A pointer to a null-terminated string of length MAX_PATH that contains the first path name.
A pointer to a null-terminated string of length MAX_PATH that contains the second path name.
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.
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.
|Minimum supported client||Windows 2000 Professional, Windows XP [desktop apps only]|
|Minimum supported server||Windows 2000 Server [desktop apps only]|
|DLL||Shlwapi.dll (version 4.71 or later)|