tt_message_arg_bval(3)

NAME
     tt_message_arg_bval - retrieve the byte-array value of a message argument

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
                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
     Tttt_c(5).