libdgl/DGLKBRD.H
Gered 62af8575c6 various updates i've left uncommitted for many months
- rename standard integer types to a more familiar (u)int(8/16/32)
- many function/struct renames. i don't _really_ know if what i've done
  for this is better, but it "feels" better to me. many draw/blit
  function names are shorter which is nice, at least. kinda important
  to me because i develop this on a real DOS machine in 80x50 text mode.
- add 'extern "C"' blocks to headers for C++ compiler usage
- draw/pixel color value arguments for functions should all have been
  changed to be uint8 instead of a full 32-bit int. feels right, but
  maybe should've left alone...
- small fix to keyboard handler. noticed a problem on one thinkpad
  laptop. was a result of what i think was a typo in a constant value
  used during the part of the interrupt handler that tells the keyboard
  controller the key event was processed
- fix uncommon potential crash function return in draw_filled_rect
- renamed low-level "direct" assembly functions to "lowlevel_xxx" to
  be a little bit more explicit about what they are
- add some convenience event helper functions for determining event
  types
- add fixed point atan2
- fixed some tabs/spaces inconsistences (should all be spaces now?)
- maybe some other minor things i've forgotten
2020-07-19 19:24:48 -04:00

42 lines
790 B
C
Executable file

#ifndef LIBDGL_DGLKYBRD_H
#define LIBDGL_DGLKYBRD_H
#include "dglcmn.h"
#include "dglkeys.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef uint8 KEY;
#define KEYBRD_FLAGS_SCROLLOCK 0x10
#define KEYBRD_FLAGS_NUMLOCK 0x20
#define KEYBRD_FLAGS_CAPSLOCK 0x40
#define KEYBRD_MOD_EXTENDED 0x1
#define KEYBRD_MOD_SHIFT 0x2
#define KEYBRD_MOD_NUMLOCK 0x4
#define KEYBRD_MOD_CAPSLOCK 0x8
extern volatile uint8 keys[128];
extern volatile uint16 key_flags;
extern volatile uint16 key_mod;
bool keyboard_init(void);
bool keyboard_shutdown(void);
bool keyboard_is_initialized(void);
KEY keyboard_read_key(void);
void keyboard_wait_for_key(KEY key);
char key_to_char(KEY key, uint16 modifiers);
#ifdef __cplusplus
}
#endif
#endif