virtual void ChildMouseAction(Ctrl * ctrl, int event, Point p) {}

Image Ctrl::DispatchMouseEvent(int e, Point p, int zd) {
	if(!IsEnabled())
		return Image::Arrow();
	if(captureCtrl && captureCtrl != this && captureCtrl->IsMouseActive())
		return captureCtrl->MEvent0(e, p + GetScreenRect().TopLeft() -
		                            captureCtrl->GetScreenRect().TopLeft(), zd);
	Ctrl *top = this;
	if(e == MOUSEWHEEL && !GetParent()) {
		Ctrl *w = GetFocusCtrl();
		if(w) {
			top = w->GetTopCtrl();
			p = GetMousePos() - top->GetScreenRect().TopLeft();
		}
	}
	Ctrl *q = top->ChildFromPoint(p);
	if(parent)
		parent->ChildMouseAction(q, e, p);
	return q ? q->DispatchMouseEvent(e, p, zd) : top->MEvent0(e, p, zd);
}

if(parent) parent->ChildMouseAction(q, e, p);