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Inside Macintosh: Files /

Chapter 2 - File Manager / File Manager Reference

High-Level HFS Routines / Maintaining Working Directories

GetWDInfo

You can use the GetWDInfo function to get information about a working directory.

FUNCTION GetWDInfo (wdRefNum: Integer; VAR vRefNum: Integer; 
                     VAR dirID: LongInt; VAR procID: LongInt): 
                     OSErr;

wdRefNum

A working directory reference number.

vRefNum

If nonzero on input, a volume reference number or drive number. On output, the volume reference number of the working directory.

dirID

On output, the directory ID of the specified working directory.

procID

The working directory user identifier.

DESCRIPTION

The GetWDInfo function returns information about the specified working directory.
You can use GetWDInfo to convert a working directory reference number to its corresponding volume reference number and directory ID.

RESULT CODES

noErr	0	No error
nsvErr	-35	No such volume
rfNumErr	-51	Bad working directory reference number