v_rcvs -- return current video state

        USAGE

          v_rcvs(page, vm, cols);
          int *page, *vm, *cols;        /* POINTERS */

                int *page - pointer to int to receive current video page #
                int *vm   - pointer to int to receive current video mode
                int *cols - pointer to int to receive current screen width

          v_rcvs is a general purpose routine that can be used outside of
          the window environment.

          Modes are defined in windows.h.

        RETURNS

          Nothing.

        CAUTIONS

          None.