DtDtsSetDataType(3)

     NAME
          DtDtsSetDataType - set the data type of a directory

     SYNOPSIS
          #include <Dt/Dts.h>

          char *DtDtsSetDataType(const char *dirpath,
                                 const char *datatype,
                                 const int override);

     DESCRIPTION
          The DtDtsSetDataType() function sets the data type of a
          directory.  This may be accomplished by adding a file named
          with a leading dot to the directory.

          The dirpath argument is a pathname of the directory.

          The datatype argument is a data type.

          If the value is already set, DtDtsSetDataType() does not
          change the value unless the override argument is set to
          True.

     RETURN VALUE
          Upon successful completion, the DtDtsSetDataType() function
          returns a pointer to a data type string, or NULL if it was
          unable to set or retrieve the data type.

     APPLICATION USAGE
          Directories can have data types associated with them, just
          as regular files can.  For example, a file manager may
          choose to alter the appearance of the directory's icon based
          on this data type or a system may use a directory of files
          as an means of supporting a complex form of data, such as a
          compund document.

     SEE ALSO
          DtDts(5), DtDtsLoadDataTypes(3).