C / C++ / MFC

include<fstream>

std::ofstream ofs("mtfile.txt",ios::app);
ofs<<"Hi";
ofs.close()

void GetString( CString& Value ) 
{
   Value = "I've changed the value.";
}
...
CString csString;
GetString( csString );

Dercio wrote:

why do we sometimes need to pass by reference, a parameter of a function

this->SetWindowPos(&this->wndBottom,,,,,)

HWND h = FindWindow(NULL,"Notepad");
ShowWindow(h,SW_MAXIMIZE);

prithaa wrote:

but the window gives debug assertion error while closing

class TableF : public CMDIChildWnd
{
DECLARE_DYNCREATE(TableF)
protected:
TableF();
protected:
virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
protected:
virtual ~TableF();
HeadView Heading ;
afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
DECLARE_MESSAGE_MAP()
};


class HeadView : public CView
{
//protected:
public:
HeadView(); // protected constructor used by dynamic creation
DECLARE_DYNCREATE(HeadView)
public:
//Operations
public:
virtual void OnInitialUpdate();
//protected:
public :
virtual void OnDraw(CDC* pDC); // overridden to draw this view
public :
virtual ~HeadView();
#ifdef _DEBUG
virtual void AssertValid() const;
virtual void Dump(CDumpContext& dc) const;
#endif
}