tt_message_arg_val(3)

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

SYNOPSIS
     #include <Tt/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
     Tttt_c(5), tt_ptr_error(3), tt_free(3).