Clean exit for SDI/MDI program

That's a biiiig topic ! To exit the program, use PostQuitMessage(0) or something similar. To exit "cleanly", unallocate all dynamicalling allocated memory and close all open files before posting that message.

Originally posted by Michael Tjong
Thanks Sober .. really appreciate it. :) You should not appreciate advice to use PostQuitMessage to exit a program cleanly.

You want to allow MFC to do it's cleanup. If you put your cleanup in appropriate places then it will be done at the appropriate time automatically and you don't need to do it in processing that specifically bypasses MFC.

You can send a WM_CLOSE message to the main frame. Just one line of source code is probably enough. All cleanup should then happen automatically. If there are any modified documents then MFC will prompt the user to ask if they should be saved.

Thanks for the replies .. :)

But it gives me assertion error as shown below:

_AFXWIN_INLINE BOOL CWnd::PostMessage(UINT message, WPARAM wParam, LPARAM lParam)
{ ASSERT(::IsWindow(m_hWnd)); return ::PostMessage(m_hWnd, message, wParam, lParam); }

Michael

But then again what was the memory issue you were running into originally. You state memory corruption (do you mean leak or file corruption), but there are many ways this can occurr not technically related to the application closing.

For example if you create a variable thru the new process like so

OVERLAPPEDPLUS *pOlap;

pOlap = new OVERLAPPEDPLUS;

You now have housekeeping you have to do yourself to make sure you do not leave any memory leaks. So as soon as you no longer need do something like

delete pOlap;