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tt_message_xarg_add(library call)	     tt_message_xarg_add(library call)

NAME
       tt_message_xarg_add -- add an argument with an XDR-interpreted value to
       a message object

SYNOPSIS
       #include	<Tt/tt_c.h>
       Tt_status tt_message_xarg_add(
       Tt_message m,
       Tt_mode n,
       const char *vtype,
       xdrproc_t xdr_proc,
       void *value);

DESCRIPTION
       The tt_message_xarg_add function	adds an	argument  with	an  XDR-inter-
       preted value to a message object.

       To change existing argument values, the application must	use only modes
       TT_OUT or TT_INOUT.

       Adding arguments	when replying to a message produces undefined 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 xdr_proc argument points to the XDR procedure to be used to serial-
       ize  the	data pointed to	by value. The value argument is	the data to be
       serialized.

RETURN VALUE
       Upon successful completion, the	tt_message_xarg_add  function  returns
       the status of the operation as one of the following 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 ser-
		 vice cannot restart it.

       TT_ERR_POINTER
		 The pointer passed does not point to an object	of the correct
		 type for this operation.

       TT_ERR_XDR
		 The XDR procedure failed on the given data, or	evaluated to a
		 zero-length expression.

SEE ALSO
       Tt/tt_c.h - Tttt_c(5)

					     tt_message_xarg_add(library call)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO

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