There is a very good ABAP Programming Guidelines, it’s pdf version. If you want to download it,pls refer below link.
Official ABAP™ Programming Guidelines
How to get local print machine information? Pls check below program.
DATA: PRDEFAULT LIKE FRPRLIST-PRNAME ,
IS_FRONTEND LIKE RSPOTYPE-MODE .
DATA: LIST LIKE FRPRLIST OCCURS 0 WITH HEADER LINE.
CALL FUNCTION ‘RSPO_FRONTEND_PRINTERS_FOR_DEV’
EXPORTING
DEVICE [...]
| M | T | W | T | F | S | S |
|---|---|---|---|---|---|---|
| « Dec | ||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 8 | 9 | 10 | 11 | 12 | 13 | 14 |
| 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| 22 | 23 | 24 | 25 | 26 | 27 | 28 |
| 29 | 30 | 31 | ||||