struct ParentCtrl : public Ctrl {
	virtual Rect   GetVoidRect();
	virtual Size   GetStdSize() const;

	virtual void SetMinSize(Size sz)	{ minsize = sz; }
	virtual Size GetMinSize() const		{ return IsNull(minsize) ? Ctrl::GetMinSize() : minsize; }

	ParentCtrl();
private:
	Size minsize;
};

Rect ParentCtrl::GetVoidRect()
{
	return GetSize();
}

Size ParentCtrl::GetStdSize() const
{
	return GetMinSize();
}

ParentCtrl::ParentCtrl()
{
	NoWantFocus();
	Transparent();
	minsize = Null;
}