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tt_message_arg_mode(3)
CDE
NAME
  tt_message_arg_mode - return the mode of a message argument

SYNOPSIS
  #include <tt_c.h>
  Tt_mode tt_message_arg_mode(Tt_message m,
			      int n);

DESCRIPTION
  The tt_message_arg_mode function returns the mode of the nth message
  argument.

  The m argument is the opaque handle for the message involved in this
  operation. The n argument is the number of the argument to be returned. The
  first argument is numbered zero.

RETURN VALUE
  Upon successful completion, the tt_message_arg_mode function returns a
  value that 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 application can use tt_int_error(3) to extract one of the following
  Tt_status values from the Tt_mode integer return value:

  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_NUM
      The integer value passed was invalid (out of range).

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

SEE ALSO
  tt_c.h(5), tt_int_error(3)

Index for Section 3

Alphabetical listing for T

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