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tt_message_arg_bval(library call)	     tt_message_arg_bval(library call)

NAME
       tt_message_arg_bval  — retrieve the byte-array value of a message argu‐
       ment

SYNOPSIS
       #include <Tt/tt_c.h>
       Tt_status tt_message_arg_bval(
       Tt_message m,
       int n,
       unsigned char **value,
       int *len);

DESCRIPTION
       The tt_message_arg_bval function retrieves the byte-array 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
       retrieved.  The first argument is numbered zero.	 The value argument is
       the address of a character pointer to which the ToolTalk service is  to
       point  a	 string	 that  contains the contents of the argument.  The len
       argument is the address of an integer to which the ToolTalk service  is
       to set the length of the value in bytes.

RETURN VALUE
       Upon  successful	 completion,  the tt_message_arg_bval function returns
       the status of the operation as one of the following Tt_status values:

       TT_OK	 The operation completed successfully.

       TT_ERR_NOMP
		 The ttsession(1) process is not running and the ToolTalk ser‐
		 vice 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/tt_c.h - Tttt_c(5).

					     tt_message_arg_bval(library call)

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