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 #ifdef __cplusplus

24 extern "C" {

25 #endif

26

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

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

29

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

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

32 */

33 int kb_isdown(int key);

34

35 /* waits for any keypress */

36 void kb_wait(void);

37

38 /* removes and returns a single key from the input buffer.

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

40 * returns the last key pressed.

41 */

42 int kb_getkey(void);

43

44 #ifdef __cplusplus

45 }

46 #endif

47

48 #endif /* KEYB_H_ */