tt_message_arg_bval_set(library call) tt_message_arg_bval_set(library call)
NAMEtt_message_arg_bval_set — set the byte-array value and type of a mes‐
sage argument
SYNOPSIS
#include <Tt/tt_c.h>
Tt_status tt_message_arg_bval_set(
Tt_message m,
int n,
const unsigned char *value,
int len);
DESCRIPTION
The tt_message_arg_bval_set function sets the byte-array value and the
type of the nth message argument.
This function also changes the value of an existing nth message argu‐
ment to a byte string.
The m argument is the opaque handle for the message involved in this
operation. The n argument is the number of the argument to set. The
first argument is numbered zero. The value argument is the byte string
with the contents for the message argument. The len argument is the
length of the value in bytes.
RETURN VALUE
Upon successful completion, the tt_message_arg_bval_set 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.
APPLICATION USAGE
The sending process can use tt_message_arg_bval_set(3) to fill in
opaque data.
SEE ALSO
Tt/tt_c.h - Tttt_c(5), tt_message_barg_add(3), tt_mes‐
sage_arg_val_set(3), tt_message_arg_ival_set(3).
tt_message_arg_bval_set(library call)
