tt_pattern_class_add(3)

NAME
     tt_pattern_class_add - add a value to the class information for a pattern

SYNOPSIS
     #include <Tt/tt_c.h>
     Tt_status tt_pattern_class_add(Tt_pattern p,
                                    Tt_class c);

DESCRIPTION
     The tt_pattern_class_add() function adds a value to the class information
     for the specified pattern.

     If the class is TT_REQUEST, the sending process expects a reply to the
     message.

     If the class is TT_NOTICE, the sending process does not expect a reply to
     the message.

     The p argument is a unique handle for a message pattern.  This handle is
     returned after tt_pattern_create(3) is called.  The c argument indicates
     whether the receiving process is to take action after the message is
     received.  The following values are defined:

        TT_NOTICE
                A notice of an event.  The sender does not want feedback on
                this message.

        TT_REQUEST
                A request for some action to be taken.  The sender must be
                notified of progress, success or failure, and must receive any
                return values.

RETURN VALUE
     Upon successful completion, the tt_pattern_class_add() function returns
     the status of the operation as one of the following 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
     Tttt_c(5), tt_pattern_create(3).