The TPU$MESSAGE routine writes error messages and strings using
    the built-in procedure, MESSAGE.

    Call this routine to have messages written and handled in a
    manner consistent with TPU. This routine should be used only
    after TPU$EXECUTE_INIFILE.

    Format

      TPU$MESSAGE  string

1  –  Returns

    OpenVMS usage:cond_value
    type:         longword (unsigned)
    access:       write only
    mechanism:    by value

    Longword condition value.

                                   NOTE

       The return status should be ignored because it is intended
       for use by the $PUTMSG system service.

2  –  Argument

 string

    OpenVMS usage:char_string
    type:         character string
    access:       read only
    mechanism:    by descriptor
    Formatted message. The string argument is the address of
    a descriptor of text to be written. It must be completely
    formatted. This routine does not append the message prefixes.
    However, the text is appended to the message buffer if one
    exists. In addition, if the buffer is mapped to a window, the
    window is updated.