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NAME
     tt_session_prop_add - add a new  character-string  value  to
     the end of the list of values

SYNOPSIS
     #include <Tt/tt_c.h>
     Tt_status tt_session_prop_add(const char *sessid,
                                   const char *propname,
                                   const char *value);

DESCRIPTION
     The tt_session_prop_add() function  adds  a  new  character-
     string  value  to the end of the list of values for the pro-
     perty of the specified session.

     The sessid argument is the name of the session joined.   The
     application   can   use   the  sessid  value  returned  when
     tt_default_session() is called.  The  propname  argument  is
     the  name  of  the property to which a value is to be added.
     The name must be less than 64 bytes.  The value argument  is
     the character string to add to the property name list.

RETURN VALUE
     Upon successful completion, the tt_session_prop_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_PROPLEN
                The specified property value is too  long.   (The
                maximum  size  is implementation specific, but is
                at least 64.)

        TT_ERR_PROPNAME
                The  specified  property  name  is  syntactically
                invalid.

        TT_ERR_SESSION
                The specified ToolTalk session is out of date  or
                invalid.

SEE ALSO
     tt_c(5).

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