&os2; predefines a number of
extended attributes (EAs). These
are called "standard EAs". The most frequently used standard EAs are:
.CLASSINFO
is used by the Workplace Shell
to store its object-specific data with file-system objects.
This is binary data and contains things like the object's class
name and most of the settings if they were changed from the defaults
in the object's
properties notebook.
.COMMENTS
, .KEYWORDS
, and .SUBJECT
are used to store additional information about the file-system object
and correspond to the respective fields on the "File" page of the
object's properties notebook.
.ICON
is used if a file-system object
has been assigned a non-default icon, which will then also
be displayed by the Workplace Shell. If you change a file-system
object's icon on the "Icon" page of its properties notebook,
the icon is stored in this EA. (For folders, in addition,
.ICON1
contains the folder's "open folder" icon.)
.LONGNAME
is used by the Workplace Shell to
store an object's title, if it does not conform to the naming
rules of the file system where the
object resides. See
"Real names" for details.
.TYPE
contains the object's file type if it
has been changed from the default in its properties notebook.