[msw 2.8.7] Problem saving application settings when system is shut down

[Eric Jensen]

Hello Vadim,

Friday, April 18, 2008, 2:23:49 AM, you wrote:
EJ>> Your second idea worked though. Here is what we have now:
EJ>> 
EJ>> void wxApp::OnEndSession(wxCloseEvent& WXUNUSED(event))
EJ>> {
EJ>>     //if(GetTopWindow()) GetTopWindow()->Close(true);
EJ>>     // Windows will terminate the process soon after we
EJ>>     // return from WM_ENDSESSION handler anyhow, so make
EJ>>     // sure we at least execute our cleanup code before
EJ>> 
EJ>>     if(wxTopLevelWindows.GetCount()>0) {
EJ>>         wxTopLevelWindows[0]->SetHWND(NULL);
EJ>>     }
EJ>> 
EJ>>     const int rc = OnExit();
EJ>>     wxEntryCleanup();
EJ>> 
EJ>>     // calling exit() instead of ExitProcess() or not doing
EJ>>     // anything at all and being killed by Windows has the
EJ>>     // advantage of executing the dtors of global objects
EJ>>     exit(rc);
EJ>> }
EJ>> 
EJ>> Saving the old HWND and calling ::DestroyWindow() on it later does not
EJ>> work (leads to a crash).
EJ>> 
EJ>> I'll do some more testing tomorrow.

VZ>  Please let me know if you discover any problems with this or whether I
VZ> should go ahead and apply it.

sorry for the late reply, only now had time to do some more testing.

The above code seems to work fine. It still feels a bit like
a dirty hack, but i guess that's what you need to circumvent Windows
behavior sometimes ;)

Thanks for your help.

Regards, Eric