C / C++ / MFC

CBrush m_brush;
m_brush.CreateSolidBrush(RGB(241,244,250));//in OnInitDialog

HBRUSH CTest::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) 
{
	HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
	
	switch (nCtlColor)
	{
		case CTLCOLOR_EDIT:
			pDC->SetTextColor(RGB(0,0,0));
			pDC->SetBkColor(RGB(255,255,255));
			return hbr;

		case CTLCOLOR_STATIC:			
			LOGBRUSH logbrush;
			m_brush.GetLogBrush( &logbrush );
			pDC->SetTextColor(RGB(0,0,0));
			pDC->SetBkColor(logbrush.lbColor);
			return m_brush;
			

		case CTLCOLOR_BTN:
		case CTLCOLOR_MSGBOX:
		case CTLCOLOR_DLG:
			return m_brush;
		
		default:
			return m_brush;
	}
}

BOOL CTest::OnEraseBkgnd(CDC *pDC)
{
	CPen myPen,hpenOld;
	CRect rect;
	GetClientRect(&rect);
	for(int i=0;i<rect.bottom;)
	{	myPen.CreatePen(PS_SOLID,1,RGB(241,244,250));
		pDC->SelectObject(&myPen);
		pDC->MoveTo(0,i);
		pDC->LineTo(rect.right,i);
		i++;
		myPen.DeleteObject();
	}
	return 1
}

Le@rner wrote:

BOOL CTest::OnEraseBkgnd(CDC *pDC)
{
CPen myPen,hpenOld;
CRect rect;
GetClientRect(&rect);
for(int i=0;i<rect.bottom;)
{="" mypen.createpen(ps_solid,1,rgb(241,244,250));
="" pdc-="">SelectObject(&myPen);
pDC->MoveTo(0,i);
pDC->LineTo(rect.right,i);
i++;
myPen.DeleteObject();
}
return 1
}

BOOL CTest::OnEraseBkgnd(CDC *pDC)
{
	CRect rect;
	GetClientRect(&rect);	
	pDC->FillSolidRect(rect,RGB(241,244,250));	
	return TRUE;
}

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

Check your definition of Irrationality[^]
1 - Avicenna
5 - Hubbard
3 - Own definition

'Test.exe': Loaded 'C:\Windows\System32\ntdll.dll'
'Test.exe': Loaded 'C:\Windows\System32\kernel32.dll'
'Test.exe': Loaded 'C:\Windows\System32\user32.dll'
'Test.exe': Loaded 'C:\Windows\System32\gdi32.dll'
'Test.exe': Loaded 'C:\Windows\System32\advapi32.dll'
'Test.exe': Loaded 'C:\Windows\System32\rpcrt4.dll'
'Test.exe': Loaded 'C:\Windows\System32\msimg32.dll'
'Test.exe': Loaded 'C:\Windows\System32\comdlg32.dll'
'Test.exe': Loaded 'C:\Windows\System32\msvcrt.dll'
'Test.exe': Loaded 'C:\Windows\System32\shlwapi.dll'
'Test.exe': Loaded 'C:\Windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.6002.18005_none_5cb72f96088b0de0\comctl32.dll'
'Test.exe': Loaded 'C:\Windows\System32\shell32.dll'
'Test.exe': Loaded 'C:\Windows\System32\winspool.drv'
'Test.exe': Loaded 'C:\Windows\System32\oledlg.dll'
'Test.exe': Loaded 'C:\Windows\System32\ole32.dll'
'Test.exe': Loaded 'C:\Windows\System32\oleaut32.dll'
'Test.exe': Loaded 'C:\Windows\System32\winmm.dll'
'Test.exe': Loaded 'C:\Windows\System32\oleacc.dll'
'Test.exe': Loaded 'C:\Windows\System32\imm32.dll'
'Test.exe': Loaded 'C:\Windows\System32\msctf.dll'
'Test.exe': Loaded 'C:\Windows\winsxs\x86_microsoft.windows.gdiplus_6595b64144ccf1df_1.0.6002.18005_none_9e50b396ca17ae07\GdiPlus.dll'
'Test.exe': Loaded 'C:\Windows\System32\lpk.dll'
'Test.exe': Loaded 'C:\Windows\System32\usp10.dll'
'Test.exe': Loaded 'C:\Windows\System32\uxtheme.dll'
'Test.exe': Loaded 'C:\Windows\System32\dwmapi.dll'
'Test.exe': Unloaded 'C:\Windows\System32\dwmapi.dll'
Detected memory leaks!
Dumping objects ->
{235} normal block at 0x00286728, 145 bytes long.
 Data: < %  d           > C0 25 C9 01 64 00 00 00 80 00 00 00 01 00 00 00 
{227} normal block at 0x002866D8, 20 bytes long.
 Data: < %              > C0 25 C9 01 03 00 00 00 03 00 00 00 01 00 00 00 
{226} normal block at 0x00286640, 85 bytes long.
 Data: < %  D   D       > C0 25 C9 01 44 00 00 00 44 00 00 00 01 00 00 00 
{225} normal block at 0x00286598, 103 bytes long.
 Data: < %  V   V       > C0 25 C9 01 56 00 00 00 56 00 00 00 01 00 00 00 
Object dump complete.
The program '[3536] Test.exe: Native' has exited with code 0 (0x0).

Eugen Podsypalnikov wrote:

Try to create, select and delete your background pen outside the drawing loop.

Nilesh Hamane wrote:

How can i optimize this code in one line?

int* p[MAXROW];

//allocate col*row ints to base ptr
p[0] = (int*)malloc(MAXROW*MAXCOL*sizeof(int));

//explicitly calculate the offset into this array 
for(int i=1; i<MAXROW; ++i)
   p[i] = p[i-1] + MAXCOL;

//first allocation of row pointers to int
int **p = (int **)malloc(MAXROW*sizeof(int *));

//second allocation of col*row ints
p[0] = (int *)malloc(MAXCOL*MAXROW*sizeof(int));

//set each row pointer to a subsequent group of col ints in the second //block.
for(int i = 1; i<MAXROW; i++)
  p[i] = p[i-1] + MAXCOL;

int * p = (int *) malloc(COLS * ROWS * sizeof(int));

int iSecret, iGuess;

 srand ( time(NULL) );
  /* generate secret number: */
  for(int x=0;x<;5;x++)
  {
  iSecret = rand() % 10 + 1;

  }

int i, j, goAhead, timeSeed ; 

	timeSeed = (int) time(0) ;
	printf("Setting seed to be: %d\n", timeSeed) ; 
	srand(timeSeed) ;
	i = 0 ;
	for (; i < 10 ; i++)
	{
		for (j = 0 ; j < 5 ; j++) 
		{
			printf("%d ", rand() ) ; 
		//	int iSecret = rand() % 10 + 1;
		//add.Format("%d",iSecret);
		//m_list.InsertItem(0,add);
			break;
		}
		
		printf("\n") ;
	} 

int num[10];
//assign numbers from 1 to 10
for(int i=0; i<10; ++i)
  num[i] = i+1;

//generate random numbers
srand ( time(NULL) );

for(int i=0; i<10; ++i)
{
  int index = rand() % 10; //an index in array

  //exchange numbers in array
  int temp = num[i];
  num[i] = num[index];
  num[index] = temp;

}
//print random numbers in array here