tt_message_context_val(3)

tt_message_context_val(C)LIBRARY FUNCTIOtt_message_context_val(3)

NAME
     tt_message_context_val - retrieve the character string of	a
     message's context

SYNOPSIS
     #include <Tt/tt_c.h>

     char *tt_message_context_val(Tt_message m,
				  const	char *slotname);

DESCRIPTION
     The tt_message_context_val() function retrieves the  charac-
     ter string	of a message's context.

     The m argument is the opaque handle for the message involved
     in	this operation.	 The slotname argument describes the con-
     text of this message.

     If	there  is  no  context	slot  associated  with	slotname,
     tt_message_context_val() returns a	NULL pointer in	slotname.

RETURN VALUE
     Upon  successful  completion,  the	 tt_message_context_val()
     function returns the contents for the message argument.  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.

	TT_ERR_SLOTNAME
		The specified slotname is syntactically	invalid.

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).

Unix System LaboratorLast change: 11 May 1994			1