C / C++ / MFC

<br />
// CexplDlg dialog<br />
class CexplDlg : public CDialog<br />
{<br />
// Construction<br />
public:<br />
	CexplDlg(CWnd* pParent = NULL);	// standard constructor<br />
<br />
// Dialog Data<br />
	enum { IDD = IDD_EXPL_DIALOG };<br />
<br />
	protected:<br />
	virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support<br />
<br />
<br />
// Implementation<br />
protected:<br />
	HICON m_hIcon;<br />
<br />
	// Generated message map functions<br />
	virtual BOOL OnInitDialog();<br />
	afx_msg void OnSysCommand(UINT nID, LPARAM lParam);<br />
	afx_msg void OnPaint();<br />
	afx_msg HCURSOR OnQueryDragIcon();<br />
	DECLARE_MESSAGE_MAP()<br />
public:<br />
	CSliderCtrl m_createslider;	<br />
};<br />

ifstream fin( "foo.txt" );
if ( fin )
{
     //You get in here the file's already there
}
else
{
     //File's not created
}

ofstream fout( "foo.txt" ios::noreplace )
if ( fout )
{
     //File didn't exist but it does now
}
else
{
     //File existed and your fout creation failed
}


||


ofstream fout( "foo.txt" ios::nocreate )
if ( fout )
{
     //File existed but it's about to get truncated
}
else
{
     //File doesn't exist and your fout creation failed
}

SUIT f = CLUB;
++f;

SUIT operator++(SUIT &suit,int){
    SUIT old = suit;
    ++suit;
    switch( old )	{
    case( CLUB ):		
        return DIAMOND;
        break;
    case( DIAMOND ):
        return SPADE;
        break;
    case( SPADE ):
        return HEART;
        break;
    case( HEART ):
        return CLUB;
        break;
    default:
        return DIAMOND;
    }
}

const SUIT &operator++(SUIT &suit)

return suit;

enum SUIT { CLUB, DIAMOND, SPADE, HEART };
const SUIT &operator++(SUIT &suit) {
    switch( suit )	{
    case( CLUB ):		
        suit = DIAMOND;
        break;
    case( DIAMOND ):
        suit = SPADE;
        break;
    case( SPADE ):
        suit = HEART;
        break;
    case( HEART ):
        suit = CLUB;
        break;
    default:
        ;
    }
    return suit;
}
SUIT operator++(SUIT &suit,int){
    SUIT old = suit;
    ++suit;
    return old;
}
int _tmain(int argc, _TCHAR* argv[]) {

    SUIT f = CLUB;
    SUIT v = ++f;

    return 0;
}

CRect rect;

// get the current window size and position
GetWindowRect( rect );

// now change the size, position, and Z order
// of the window.
::SetWindowPos(
    m_hWnd ,        // handle to window
    HWND_TOPMOST,   // placement-order handle
    rect.left,      // horizontal position
    rect.top,       // vertical position
    rect.Width(),   // width
    rect.Height(),  // height
    SWP_SHOWWINDOW  // window-positioning options
);