KeyboardFilter
KeyboardFilter::KeyboardFilter(Desktop* desktop)
KeyboardFilter::_UpdateFocus(int32 key, uint32 modifiers, EventTarget** _target)
KeyboardFilter::Filter(BMessage* message, EventTarget** _target,
KeyboardFilter::RemoveTarget(EventTarget* target)
fEventDispatcher.SetKeyboardFilter(new KeyboardFilter(this));
KeyboardFilter(Desktop* desktop);