C / C++ / MFC

int *varArray[1000000];

StartNewTime = getSystemTimer();

for (i=0; i<1000000; i++)
 varArray[i] = new int;


StartDelTime = getSystemTimer();

for (i=0; i<1000000; i++)
 delete varArray[i];

endTime = getSystemTimer();

elapsedNewTime = StartDelTime - StartNewTime;
elapsedDelTime = endTime - StartDelTime;

timePerNew = (float) elapsedNewTime / 1000000.0;
timePerDel = (float) elapsedDelTime / 1000000.0;

ginjikun wrote:

I would like to ask regarding the possible overhead/performance issue for an application (DLL) to create an object (call NEW) and destroy the object (DELETE) every 1 second?

BOOL CMyFormView::OnPreparePrinting(CPrintInfo* pInfo)
{	// Standardvorbereitung
    delete pInfo->m_pPD ;		// Release previous MFC allocated standard dialog object
	//Miguel: Attach the new CDlgPrinting
    pInfo->m_pPD = new CDlgPrinting(FALSE, PD_ALLPAGES | PD_USEDEVMODECOPIES | PD_NOPAGENUMS
								| PD_HIDEPRINTTOFILE | PD_NOSELECTION, this) ;   //My own CPrintDialog self defined
	pInfo->m_pPD->m_pd.hInstance = AfxGetInstanceHandle();
	pInfo->m_pPD->m_pd.lpPrintTemplateName = MAKEINTRESOURCE(IDD_PRINT_PRDLG);
	pInfo->m_pPD->m_pd.Flags |= PD_ENABLEPRINTTEMPLATE;
	pInfo->m_pPD->m_pd.nMinPage = 1;
.
// Other checks and configurations
.
	if (pInfo->m_bPreview)
		return DoPreparePrinting(pInfo);

	int nAnswer = pInfo->m_pPD->DoModal ();
	if (nAnswer == IDCANCEL)
		return FALSE;

	pInfo->m_pPD->m_pd.hDC = pInfo->m_pPD->CreatePrinterDC ();

	return TRUE;
}

//*********************************

void CMyFormView::OnPrepareDC(CDC* pDC, CPrintInfo* pInfo) 
{	// TODO: Speziellen Code hier einfügen und/oder Basisklasse aufrufen
	if (pDC->IsPrinting ())
	{	DEVMODE* devMode = pInfo->m_pPD->GetDevMode ();
		devMode->dmOrientation = DMORIENT_LANDSCAPE;
		devMode->dmFields |= DM_ORIENTATION;
		pDC->ResetDC (devMode);
	}
	
	CFormView::OnPrepareDC(pDC, pInfo);
}

//*********************************

void CMyFormView::OnPrint(CDC* pDC, CPrintInfo* pInfo) 
{	// TODO: Speziellen Code hier einfügen und/oder Basisklasse aufrufen	
// Setting printing parameters
	pDC->SetMapMode (MM_LOMETRIC);
	
	double dLeftOffset = 200 - (pDC->GetDeviceCaps (PHYSICALOFFSETX) * 254.0) / pDC->GetDeviceCaps (LOGPIXELSX);
	double dTopOffset = 200 - (pDC->GetDeviceCaps (PHYSICALOFFSETY) * 254.0) / pDC->GetDeviceCaps (LOGPIXELSY);
	double dRightMargin = 2770 - (pDC->GetDeviceCaps (PHYSICALOFFSETX) * 254.0) / pDC->GetDeviceCaps (LOGPIXELSX);
	double dBottomMargin = 1950 - (pDC->GetDeviceCaps (PHYSICALOFFSETY) * 254.0) / pDC->GetDeviceCaps (LOGPIXELSY);

	pInfo->m_rectDraw.left += (int) dLeftOffset;
	pInfo->m_rectDraw.top += (int) dTopOffset;
	pInfo->m_rectDraw.right = (int) dRightMargin;
	pInfo->m_rectDraw.bottom = (int) dBottomMargin;

..........
.......
,....

Regards.
--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
“The First Rule of Program Optimization: Don't do it. The Second Rule of Program Optimization (for experts only!): Don't do it yet.” - Michael A. Jackson
Rating helpfull answers is nice, but saying thanks can be even nicer.

locoone wrote:

i can change from low to normal and high

Mark Salsbery
Microsoft MVP - Visual C++

ABOVE_NORMAL_PRIORITY_CLASS 0x00008000 
BELOW_NORMAL_PRIORITY_CLASS 0x00004000 
HIGH_PRIORITY_CLASS 0x00000080 
IDLE_PRIORITY_CLASS 0x00000040 
NORMAL_PRIORITY_CLASS 0x00000020 
REALTIME_PRIORITY_CLASS 0x00000100 

gabbana wrote:

i am wondering if vc++ also understands jpeg resources

IDB_JPEG1     BITMAP          "res\\some.JPG"
IDB_GIF1      BITMAP          "res\\some.GIF"

Mark Salsbery
Microsoft MVP - Visual C++

AndreFratelli wrote:

What do you guys think it can be?

led mike wrote:

I don't know what you think we can do it about it short of re-writing all the C++ documentation that already exists which wouldn't make any sense since you have already proven you don't read it.

#ifndef __WHATEVER_H
#define __WHATEVER_H
class Whatever
{
 void method();
};

void Whatever::method()
{
}
#endif

#ifndef __WHATEVER_H
#define __WHATEVER_H
class Whatever
{
 void method();
};
#endif

#include "whatever.h"

void Whatever::method()
{
}

AndreFratelli wrote:

I there

Stephen Hewitt wrote:

As for your coding problems it would be helpful if you included the error messages.