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NAME
     tt_pattern_scope_add - add a value to the scope field for  a
     pattern

SYNOPSIS
     #include <Tt/tt_c.h>
     Tt_status tt_pattern_scope_add(Tt_pattern p,
                                    Tt_scope s);

DESCRIPTION
     The tt_pattern_scope_add() function  adds  a  value  to  the
     scope field for the specified pattern.

     The p argument is a unique handle  for  a  message  pattern.
     This   handle  is  returned  after  tt_pattern_create(3)  is
     called.  The s argument specifies what processes are  eligi-
     ble  to  receive  the  message.   The  following  values are
     defined:

        TT_SESSION
                All processes joined to the indicated session are
                eligible.

        TT_FILE
                All processes joined to the  indicated  file  are
                eligible.

        TT_BOTH
                All processes joined to either indicated file  or
                the indicated session are eligible.

        TT_FILE_IN_SESSION
                All processes joined to both the  indicated  file
                and the indicated session are eligible.

RETURN VALUE
     Upon successful completion, the tt_pattern_scope_add() func-
     tion  returns the status of the operation as one of the fol-
     lowing Tt_status values:

        TT_OK   The operation completed successfully.

        TT_ERR_NOMP
                The ttsession(1) process is not running  and  the
                ToolTalk service cannot restart it.

        TT_ERR_POINTER
                The pointer passed does not point to an object of
                the correct type for this operation.

SEE ALSO
     tt_c(5), tt_pattern_create(3).

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