export declare const MAC_ENTER = 3;
export declare const BACKSPACE = 8;
export declare const TAB = 9;
export declare const NUM_CENTER = 12;
export declare const ENTER = 13;
export declare const SHIFT = 16;
export declare const CTRL = 17;
export declare const ALT = 18;
export declare const PAUSE = 19;
export declare const CAPS_LOCK = 20;
export declare const ESC = 27;
export declare const SPACE = 32;
export declare const PAGE_UP = 33;
export declare const PAGE_DOWN = 34;
export declare const END = 35;
export declare const HOME = 36;
export declare const LEFT = 37;
export declare const UP = 38;
export declare const RIGHT = 39;
export declare const DOWN = 40;
export declare const PRINT_SCREEN = 44;
export declare const INSERT = 45;
export declare const DELETE = 46;
export declare const ZERO = 48;
export declare const ONE = 49;
export declare const TWO = 50;
export declare const THREE = 51;
export declare const FOUR = 52;
export declare const FIVE = 53;
export declare const SIX = 54;
export declare const SEVEN = 55;
export declare const EIGHT = 56;
export declare const NINE = 57;
export declare const QUESTION_MARK = 63;
export declare const A = 65;
export declare const B = 66;
export declare const C = 67;
export declare const D = 68;
export declare const E = 69;
export declare const F = 70;
export declare const G = 71;
export declare const H = 72;
export declare const I = 73;
export declare const J = 74;
export declare const K = 75;
export declare const L = 76;
export declare const M = 77;
export declare const N = 78;
export declare const O = 79;
export declare const P = 80;
export declare const Q = 81;
export declare const R = 82;
export declare const S = 83;
export declare const T = 84;
export declare const U = 85;
export declare const V = 86;
export declare const W = 87;
export declare const X = 88;
export declare const Y = 89;
export declare const Z = 90;
export declare const META = 91;
export declare const WIN_KEY_LEFT = 91;
export declare const WIN_KEY_RIGHT = 92;
export declare const CONTEXT_MENU = 93;
export declare const NUM_ZERO = 96;
export declare const NUM_ONE = 97;
export declare const NUM_TWO = 98;
export declare const NUM_THREE = 99;
export declare const NUM_FOUR = 100;
export declare const NUM_FIVE = 101;
export declare const NUM_SIX = 102;
export declare const NUM_SEVEN = 103;
export declare const NUM_EIGHT = 104;
export declare const NUM_NINE = 105;
export declare const NUM_MULTIPLY = 106;
export declare const NUM_PLUS = 107;
export declare const NUM_MINUS = 109;
export declare const NUM_PERIOD = 110;
export declare const NUM_DIVISION = 111;
export declare const F1 = 112;
export declare const F2 = 113;
export declare const F3 = 114;
export declare const F4 = 115;
export declare const F5 = 116;
export declare const F6 = 117;
export declare const F7 = 118;
export declare const F8 = 119;
export declare const F9 = 120;
export declare const F10 = 121;
export declare const F11 = 122;
export declare const F12 = 123;
export declare const NUM_LOCK = 144;
export declare const SEMICOLON = 186;
export declare const DASH = 189;
export declare const EQUALS = 187;
export declare const COMMA = 188;
export declare const PERIOD = 190;
export declare const SLASH = 191;
export declare const APOSTROPHE = 192;
export declare const SINGLE_QUOTE = 222;
export declare const OPEN_SQUARE_BRACKET = 219;
export declare const BACKSLASH = 220;
export declare const CLOSE_SQUARE_BRACKET = 221;
export declare const WIN_KEY = 224;
export declare const MAC_FF_META = 224;
export declare const WIN_IME = 229;
/**
 * whether text and modified key is entered at the same time.
 */
export declare function isTextModifyingKeyEvent(e: KeyboardEvent): boolean;
/**
 * whether character is entered.
 */
export declare function isCharacterKey(keyCode: number): boolean;