C / C++ / MFC

double *ptr, *ptr_1;
long N=100;
ptr=(double *)malloc(N*sizeof(double));
for(;;){
  N*=2;
  ptr_1=ptr;
  if((ptr=(double*)realloc(ptr, N*sizeof(double)))==NULL){
    free(ptr_1);
    break;
  }
}

//The code --

CString szTitle = szText;

TRY{
	CWindowDC dc(this);
	CRect r;
	GetWindowRect(&r); 
	int nWindWidth = r.Width();
	int nSpace = nWindWidth;

	szTitle += szReg;

	//Acutal width of the title string
	int nActualWidth = dc.GetTextExtent(szTitle).cx;
	BOOL bStop = FALSE;
	CString szSep;
	int nCount = 0;

	//keep looping until the width of the window
	//is taken up by the string. Add spaces between
	//the normal title, and the new (right justified)
	//text I'm adding:
	while (!bStop){
		if (nActualWidth < nSpace){
			//Not filled up yet, keep adding spaces
			//between the strings:
			szSep += " ";
			szTitle = szText + szSep + szReg;
			nActualWidth = dc.GetTextExtent(szTitle).cx;
		}
		else
			bStop = TRUE;
		
		nCount++;
		if (nCount > 1000){
			//this should not happen
			bStop = TRUE;
			SetWindowText(szText + " " + szReg); 
		}
	}
	
	SetWindowText(szTitle);
}
CATCH(CResourceException,e){
	SetWindowText(szText + " " + szReg);
}
END_CATCH 

Jason Henderson
_{quasi-homepage}
^articles
_{"Like it or not, I'm right!"}

<br />
void CAnimateWnd::ChangeAppearanceAndPosition(HRGN hNewRgn, int iPosX, int iPosY)<br />
{<br />
CRect oldRect;<br />
GetWindowRect(&oldRect);<br />
<br />
SetWindowRgn(hNewRgn, FALSE); // change shape without redrawing<br />
SetWindowPos(&wndTopMost, iPosX, iPosY, 100, 100, SWP_NOACTIVATE);<br />
<br />
::InvalidateRect( GetDesktopWindow()->GetSafeHwnd(), &oldRect, TRUE);<br />
}<br />

1. Do a ScreenToClient of the rectangle for the desktop window prior to using it in InvalidateRect.
   
2. Force the repainting of the desktop window with UpdateWindow after invalidating.