* @brief Applies any scroll modfifers to the provided delta, This should only be done inside the subclasses * fakeMouseWheel impl * @param delta

Only way to figure out whether a key is a modifier key is to press it, check if a modifier changed state and then release it again. Luckily xkbcommon

Clear stale modifiers ! Clears stuck modifier state in platform-specific keyboard tracking (e.g. XKB). Default implementation does nothing. */