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NAME
     tt_message_scope_set - set the scope attribute for a message

SYNOPSIS
     #include <Tt/tt_c.h>
     Tt_status tt_message_scope_set(Tt_message m,
                                    Tt_scope s);

DESCRIPTION
     The tt_message_scope_set() function sets the scope attribute
     for the specified message.

     The m argument is the opaque handle for the message involved
     in  this  operation.   The  s argument identifies the set of
     processes eligible 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_message_scope_set() 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).

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