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tt_message_arg_val(3)


CDE


NAME

  tt_message_arg_val - return a pointer to the value of a message argument


SYNOPSIS

  #include <tt_c.h>
  char *tt_message_arg_val(Tt_message m,
			   int n);


DESCRIPTION

  The tt_message_arg_val function returns a pointer to the value 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_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_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.


APPLICATION USAGE

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


SEE ALSO

  tt_c.h(5), tt_ptr_error(3), tt_free(3)

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