keyboard

Key codes

The constant ALLEGRO_KEY_MAX is always one higher than the highest key code. So if you want to use the key code as array index you can do something like this:


VAR
  PressedKeys: ARRAY[0..ALLEGRO_KEY_MAX] OF BOOLEAN;
...
  PressedKeys[KeyCode] := TRUE;

These are the list of key codes used by Allegro, which are returned in the event.keyboard.keycode field of the ALLEGRO_KEY_DOWN and ALLEGRO_KEY_UP events and which you can pass to al_key_down:


ALLEGRO_KEY_A ... ALLEGRO_KEY_Z
ALLEGRO_KEY_0 ... ALLEGRO_KEY_9
ALLEGRO_KEY_PAD_0 ... ALLEGRO_KEY_PAD_9
ALLEGRO_KEY_F1 ... ALLEGRO_KEY_F12
ALLEGRO_KEY_ESCAPE
ALLEGRO_KEY_TILDE
ALLEGRO_KEY_MINUS
ALLEGRO_KEY_EQUALS
ALLEGRO_KEY_BACKSPACE
ALLEGRO_KEY_TAB
ALLEGRO_KEY_OPENBRACE
ALLEGRO_KEY_CLOSEBRACE
ALLEGRO_KEY_ENTER
ALLEGRO_KEY_SEMICOLON
ALLEGRO_KEY_QUOTE
ALLEGRO_KEY_BACKSLASH
ALLEGRO_KEY_BACKSLASH2
ALLEGRO_KEY_COMMA
ALLEGRO_KEY_FULLSTOP
ALLEGRO_KEY_SLASH
ALLEGRO_KEY_SPACE
ALLEGRO_KEY_INSERT
ALLEGRO_KEY_DELETE
ALLEGRO_KEY_HOME
ALLEGRO_KEY_END
ALLEGRO_KEY_PGUP
ALLEGRO_KEY_PGDN
ALLEGRO_KEY_LEFT
ALLEGRO_KEY_RIGHT
ALLEGRO_KEY_UP
ALLEGRO_KEY_DOWN
ALLEGRO_KEY_PAD_SLASH
ALLEGRO_KEY_PAD_ASTERISK
ALLEGRO_KEY_PAD_MINUS
ALLEGRO_KEY_PAD_PLUS
ALLEGRO_KEY_PAD_DELETE
ALLEGRO_KEY_PAD_ENTER
ALLEGRO_KEY_PRINTSCREEN
ALLEGRO_KEY_PAUSE
ALLEGRO_KEY_ABNT_C1
ALLEGRO_KEY_YEN
ALLEGRO_KEY_KANA
ALLEGRO_KEY_CONVERT
ALLEGRO_KEY_NOCONVERT
ALLEGRO_KEY_AT
ALLEGRO_KEY_CIRCUMFLEX
ALLEGRO_KEY_COLON2
ALLEGRO_KEY_KANJI
ALLEGRO_KEY_LSHIFT
ALLEGRO_KEY_RSHIFT
ALLEGRO_KEY_LCTRL
ALLEGRO_KEY_RCTRL
ALLEGRO_KEY_ALT
ALLEGRO_KEY_ALTGR
ALLEGRO_KEY_LWIN
ALLEGRO_KEY_RWIN
ALLEGRO_KEY_MENU
ALLEGRO_KEY_SCROLLLOCK
ALLEGRO_KEY_NUMLOCK
ALLEGRO_KEY_CAPSLOCK
ALLEGRO_KEY_PAD_EQUALS
ALLEGRO_KEY_BACKQUOTE
ALLEGRO_KEY_SEMICOLON2
ALLEGRO_KEY_COMMAND

(* Since: 5.1.1 *)
(* Android only for now *)
ALLEGRO_KEY_BACK

(* Since: 5.1.2 *)
(* Android only for now *)
ALLEGRO_KEY_VOLUME_UP
ALLEGRO_KEY_VOLUME_DOWN

(* Since: 5.1.6 *)
(* Android only for now *)
ALLEGRO_KEY_SEARCH
ALLEGRO_KEY_DPAD_CENTER
ALLEGRO_KEY_BUTTON_X
ALLEGRO_KEY_BUTTON_Y
ALLEGRO_KEY_DPAD_UP
ALLEGRO_KEY_DPAD_DOWN
ALLEGRO_KEY_DPAD_LEFT
ALLEGRO_KEY_DPAD_RIGHT
ALLEGRO_KEY_SELECT
ALLEGRO_KEY_START
ALLEGRO_KEY_L1
ALLEGRO_KEY_R1

Keyboard modifier flags

ALLEGRO_KEYMOD_SHIFT
ALLEGRO_KEYMOD_CTRL
ALLEGRO_KEYMOD_ALT
ALLEGRO_KEYMOD_LWIN
ALLEGRO_KEYMOD_RWIN
ALLEGRO_KEYMOD_MENU
ALLEGRO_KEYMOD_ALTGR
ALLEGRO_KEYMOD_COMMAND
ALLEGRO_KEYMOD_SCROLLLOCK
ALLEGRO_KEYMOD_NUMLOCK
ALLEGRO_KEYMOD_CAPSLOCK
ALLEGRO_KEYMOD_INALTSEQ
ALLEGRO_KEYMOD_ACCENT1
ALLEGRO_KEYMOD_ACCENT2
ALLEGRO_KEYMOD_ACCENT3
ALLEGRO_KEYMOD_ACCENT4
    

The event field keyboard.modifiers is a bitfield composed of these constants. These indicate the modifier keys which were pressed at the time a character was typed.

Keyboard modifier flags


ALLEGRO_KEYMOD_SHIFT
ALLEGRO_KEYMOD_CTRL
ALLEGRO_KEYMOD_ALT
ALLEGRO_KEYMOD_LWIN
ALLEGRO_KEYMOD_RWIN
ALLEGRO_KEYMOD_MENU
ALLEGRO_KEYMOD_ALTGR
ALLEGRO_KEYMOD_COMMAND
ALLEGRO_KEYMOD_SCROLLLOCK
ALLEGRO_KEYMOD_NUMLOCK
ALLEGRO_KEYMOD_CAPSLOCK
ALLEGRO_KEYMOD_INALTSEQ
ALLEGRO_KEYMOD_ACCENT1
ALLEGRO_KEYMOD_ACCENT2
ALLEGRO_KEYMOD_ACCENT3
ALLEGRO_KEYMOD_ACCENT4
    

The event field keyboard.modifiers is a bitfield composed of these constants. These indicate the modifier keys which were pressed at the time a character was typed.