C / C++ / MFC

LRESULT MyComboBox::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
	switch(message)
	{
		case CBN_DROPDOWN:
			fn1();
			break; 
                case CBN_CLOSEUP:
                        fn2();
                        break;
	}
	
	return CComboBox::WindowProc(message, wParam, lParam);
}

CObArray array1;
CObArray array2;  //Want this to hold snap shots or instances of array1

.....array2.Add(&array1); ....
.....
//Now I want to read array1 back for instance at location #3 from array2
// I wanna say array1 = array2.GetAt(2)...in other words
//I tried this: array1.Copy( array2.GetAt(2))...but gave me this error:
 'CObArray::Copy' : cannot convert parameter 1 from 'CObject *' to 'const CObArray &'

class C {
	C(void);
	C(int iNum);
	C(int iNum, BOOL bBool);
}

C::C(void) 		{ C(0); };
C::C(int iNum) 		{ C(iNum, FALSE); };
C::C(int iNum, BOOL bBool) 	{ /* Do something with iNum & bBool */ };

class C {
public:
	C(void)			{ constructor(0, FALSE); };
	C(int iNum)		{ constructor(iNum, FALSE); };
	C(int iNum, BOOL bBool)	{ constructor(iNum, bBool); };
protected:
	void constructor(int iNum, BOOL bBool);
};
void C::constructor(int iNum, BOOL bBool) { 
	// do something with args 
};