tt_message_id(3)

NAME
     tt_message_id - retrieve the identifier of a message

SYNOPSIS
     #include <Tt/tt_c.h>
     char *tt_message_id(Tt_message m);

DESCRIPTION
     The tt_message_id() function retrieves the identifier of the specified
     message.

     The m argument is the opaque handle for the message involved in this
     operation.

RETURN VALUE
     Upon successful completion, the tt_message_id() function returns the
     character string value that uniquely identifies the message across all
     running ToolTalk sessions.  The identifier of the message is set at its
     creation and never changes.  The application can use tt_ptr_error(3) to
     extract one of the following Tt_status values from the returned pointer:

        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.

APPLICATION USAGE
     The application should use tt_free(3) to free any data stored in the
     address returned by the ToolTalk API.

SEE ALSO
     Tttt_c(5), tt_ptr_error(3), tt_free(3).