/// <summary> /// get row index which holds marker /// </summary> /// <param name="board_id"></param> /// <returns>row num in 2d array</returns> /// <exception cref="BrainFlowException">If this board has no such data exit code is UNSUPPORTED_BOARD_ERROR</exception> public static int get_marker_channel(int board_id) { int[] val = new int[1]; int res = BoardControllerLibrary.get_marker_channel(board_id, val); if (res != (int)CustomExitCodes.STATUS_OK) { throw new BrainFlowException(res); } return(val[0]); }