C / C++ / MFC

Eg:
class base
{
protected :
	base()
	{
	}
friend ami;
};

class ami
{
public:
  base obj;
};

class CMyCtrl : public COleControl  
{
	
private:
	friend class CAsynlstn;
 	CMyCtrl();
	~CMyCtrl();
}

//////////////////////////////////////////
class CAsynlstn : public CAsyncSocket
{

private:
	CAsynlstn(COleControl* pDlg);
	virtual ~CAsynlstn();

};
///////////////////////////////////////
//CMyCtrl.h
///////////////////////////////////////
public:
	CAsynSvSk* m_pSrvrSock;
///////////////////////////////////////
//CMyCtrl.Cpp
///////////////////////////////////////

	m_pLstnSock = new CAsynlstn(this) /*error C2248: 'CAsynlstn::CAsynlstn' : cannot access private member declared in class 'CAsynlstn' [path]: see declaration of 'CAsynlstn::CAsynlstn'*/

class CAsynlstn : public CAsyncSocket
{

private: 
public:
	CAsynlstn(COleControl* pDlg);
	virtual ~CAsynlstn();

}

CDC* pDC = GetDC();
CRect rc;
GetClientRect(&ec);

// create a memdc  1.e. hMemDC
// select m_hbitmapScreenShot into it
// nGlassSize  is size of window
// nZoomLevel is zoom level to show i.e. 2

::StretchBlt(pDC->;m_hDC, 0, 0, rc.Width(), rc.Height(), m_hMemDC, nDesX, nDesY, m_nGlassSize /m_nZoomLevel,
			m_nGlassSize / m_nZoomLevel, SRCCOPY);