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tt_message_arg_add (3)
  • >> tt_message_arg_add (3) ( Solaris man: Библиотечные вызовы )
  • 
    NAME
         tt_message_arg_add - add a new argument to a message object
    
    SYNOPSIS
         #include <Tt/tt_c.h>
         Tt_status tt_message_arg_add(Tt_message m,
                                      Tt_mode n,
                                      const char *vtype,
                                      const char *value);
    
    DESCRIPTION
         The tt_message_arg_add() function adds a new argument  to  a
         message object.
    
         The application must add all arguments before the message is
         sent.   To  change existing argument values, the application
         must use only modes TT_OUT or TT_INOUT.
    
         Adding arguments when replying to a message  produces  unde-
         fined results.
    
         The m argument is the opaque handle for the message involved
         in  this  operation.   The n argument specifies who (sender,
         handler, observers) writes and  reads  a  message  argument.
         The following modes are defined:
    
            TT_IN   The argument is written by the sender and read by
                    the handler and any observers.
    
            TT_OUT
                    The argument is written by the handler  and  read
                    by the sender and any reply observers.
    
            TT_INOUT
                    The argument is written by  the  sender  and  the
                    handler and read by all.
    
         The vtype argument describes the type of argument data being
         added.   The  value argument is the contents for the message
         argument attribute.  The application can use NULL either for
         values  of  mode  TT_OUT, or if the value is to be filled in
         later with one of the following:
    
              tt_message_arg_val_set(3)
              tt_message_barg_val_set(3)
              tt_message_iarg_val_set(3)
    
    RETURN VALUE
         Upon successful completion, the  tt_message_arg_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_MODE
                    The specified Tt_mode is invalid.
    
            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_message_arg_val_set(3), tt_message_barg_add(3),
         tt_message_iarg_add(3).
    
    
    
    


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