Legacy Document

Inside Macintosh: Macintosh Toolbox Essentials /

Chapter 7 - Finder Interface / Finder Interface Reference

Data Structures

Extended File Information Record

The Finder manipulates the fields in the extended file information records, which are data structures of type FXInfo; your application shouldn't have to check or set any of these fields directly.

TYPE  FXInfo = 
      RECORD
         fdIconID:      Integer;    {icon ID}
         fdUnused:      ARRAY[1..3] OF Integer;
                                    {unused but reserved 6 bytes}
         fdScript:      SignedByte; {script flag and code}
         fdXFlags:      SignedByte; {reserved}
         fdComment:     Integer;    {comment ID}
         fdPutAway:     LongInt;    {home directory ID}
      END;

Field Description

fdIconID

An ID number for the file's icon; the numbers that identify icons are assigned by the Finder.

fdUnused

Reserved.

fdScript

The script system for displaying the file's name. Ordinarily, the Finder (and the Standard File Package) displays the names of all desktop objects in the system script, which depends on the region-specific configuration of the system. The high bit of the byte in the fdScript field is set by default to 0, which causes the Finder to display the filename in the current system script. If the high bit is set to 1, the Finder (and the Standard File Package) displays the filename and directory name in the script whose code is recorded in the remaining 7 bits.

fdXFlags

Reserved.

fdComment

An ID number for the comment that is displayed in the information window when the user selects a file and chooses the Get Info command from the File menu. The numbers that identify comments are assigned by the Finder.

fdPutAway

If the user moves the file onto the desktop, the directory ID of the folder from which the user moves the file.