switch(keycode)
            {
                case 0x0E:
                    backspace();
                    break;
                case 0x1C:
                    enter();
                    break;
                case 0x39:
                    space();
                    break;
                case 72:
                    keyup();
                    break;
                case 80:
                    keydown();
                    break;
                case 75:
                    keyleft();
                    break;
                case 77:
                    keyright();
                    break;