class Kep_lay : public Withkep_lay<ParentCtrl> {
public:
	typedef Kep_lay CLASSNAME;

	virtual void RightDown(Point p, dword keyFlags) ;
};    				 

class Gun : public WithGunLayout<TopWindow> {	
....
public:
....	
	Kep_lay mj;
....

void Kep_lay::RightDown(Point p, dword keyFlags)
{
....
Exclamation("OK");
....
}