Microsoft Foundation Classes (mfc.hlp) (Table of Contents; Topic list)
CWnd::OnCompacting
CWnd                                        Up Contents Index Back
──Microsoft Foundation Classes──────────────────────────────────────────────
 
  afx_msg void OnCompacting( UINT  nCpuTime  );
 
  Parameter   Description
 
  <nCpuTime>  Specifies the ratio of CPU time currently spent by Windows
              compacting memory. For example, 8000h represents 50 percent
              of CPU time.
 
  Remarks
 
  Called for all top-level windows when Windows detects that more than
  12.5 percent of system time over a 30- to 60-second interval is being
  spent compacting memory. This indicates that system memory is low.
 
  When a CWnd object receives this call, it should free as much memory as
  possible, taking into account the current level of activity of the
  application and the total number of applications running in Windows. The
  application can call the GetNumTasks Windows function to determine how
  many applications are running.
 
  This message-handler member function calls the Default member
  function. Override this member function in your derived class to handle
  the WM_COMPACTING message.
 
  See Also
 
  ::GetNumTasks, CWnd::Default, WM_COMPACTING
 
 
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