void handle_keyevt(VMINT event, VMINT keycode) {
    int vKey = 0;

    switch(keycode)
        {
            case VM_KEY_LEFT:
                vKey = KEY_LEFT;
                break;
            case VM_KEY_RIGHT:
                vKey = KEY_RIGHT;
                break;
            case VM_KEY_UP:
                vKey = KEY_UP;
                break;
            case VM_KEY_DOWN:
                vKey = KEY_DOWN;
                break;

            case VM_KEY_OK:
                vKey = KEY_OK;
                break;
            case VM_KEY_LEFT_SOFTKEY:
                vKey = KEY_LS;
                break;
            case VM_KEY_RIGHT_SOFTKEY:
                vKey = KEY_RS;
                break;
        }

        if(event == VM_KEY_EVENT_DOWN)
            keyState |= vKey;

        if(event == VM_KEY_EVENT_UP)
            keyState &= ~vKey;
}