1 /*

2 DOS interrupt-based keyboard driver.

3 Copyright (C) 2013 John Tsiombikas <nuclear@member.fsf.org>

4

5 This program is free software: you can redistribute it and/or modify

6 it under the terms of the GNU General Public License as published by

7 the Free Software Foundation, either version 3 of the License, or

8 (at your option) any later version.

9

10 This program is distributed in the hope that it will be useful,

11 but WITHOUT ANY WARRANTY; without even the implied warranty of

12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

13 GNU General Public License for more details.

14

15 You should have received a copy of the GNU General Public License

16 along with the program. If not, see <http://www.gnu.org/licenses/>

17 */

18 #ifndef KEYB_H_

19 #define KEYB_H_

20

21 #define KB_ANY (-1)

22

23 int kb_init(int bufsz); /* bufsz can be 0 for no buffered keys */

24 void kb_shutdown(void); /* don't forget to call this at the end! */

25

26 /* Boolean predicate for testing the current state of a particular key.

27 * You may also pass KB_ANY to test if any key is held down.

28 */

29 int kb_isdown(int key);

30

31 /* waits for any keypress */

32 void kb_wait(void);

33

34 /* removes and returns a signle key from the input buffer.

35 * If buffering is disabled (initialized with kb_init(0)), then it always

36 * returns the last key pressed.

37 */

38 int kb_getkey(void);

39

40 #endif /* KEYB_H_ */