Gered
365b628d66
since we're maintaining the keyboard flags/led state in the same way in our handler, there should be no need to restore the previous bios handler's flags/led state when returning
56 lines
1.1 KiB
C
56 lines
1.1 KiB
C
#ifndef DGL_DGLKYBRD_H_INCLUDED
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#define DGL_DGLKYBRD_H_INCLUDED
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#include "dglcmn.h"
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#include "dglkeys.h"
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typedef byte KEY;
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#define KEYBRD_FLAGS_SCROLLOCK 0x10
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#define KEYBRD_FLAGS_NUMLOCK 0x20
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#define KEYBRD_FLAGS_CAPSLOCK 0x40
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#define KEYBRD_MOD_EXTENDED 0x1
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#define KEYBRD_MOD_SHIFT 0x2
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#define KEYBRD_MOD_NUMLOCK 0x4
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#define KEYBRD_MOD_CAPSLOCK 0x8
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/*
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* Current state of the keyboard.
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*/
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extern volatile ubyte keys[128];
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extern volatile uword key_flags;
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extern volatile uword key_mod;
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/*
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* Installs a custom keyboard interrupt handler.
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* @return TRUE on success
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*/
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boolean keyboard_init(void);
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/*
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* Removes a previously installed keyboard interrupt handler.
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* @return TRUE on success
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*/
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boolean keyboard_shutdown(void);
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/*
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* @return TRUE if the custom keyboard interrupt handler is installed.
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*/
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boolean keyboard_is_initialized(void);
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/*
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* Waits indefinitely until any key is pressed.
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* @return The key that was pressed.
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*/
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KEY keyboard_read_key(void);
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/*
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* Waits indefinitely until the specified key is pressed.
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*/
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void keyboard_wait_for_key(KEY key);
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#endif
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