Codejock Developer Community : Intermittent crash in frame hook http://forum.codejock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Wed, 15 Apr 2026 01:44:38 +0000 Fri, 02 Oct 2020 17:47:17 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 forum.codejock.com/RSS_post_feed.asp?TID=24063 <![CDATA[Codejock Developer Community]]> http://forum.codejock.com/forum_images/codejock-logo.gif http://forum.codejock.com/ <![CDATA[Intermittent crash in frame hook : It would appear the input window...]]> http://forum.codejock.com/forum_posts.asp?TID=24063&PID=77890&title=intermittent-crash-in-frame-hook#77890 Author: rdhd
Subject: 24063
Posted: 02 October 2020 at 5:47pm

It would appear the input window to the constructor is not a valid window during the entire call to the constructor. Are you threading? MFC isn't thread safe.

A lot can go on while this code executes:

    ASSERT(pWnd == NULL || ::IsWindow(pWnd->m_hWnd));

    if (!Attach(::GetWindowDC(m_hWnd = pWnd->GetSafeHwnd())))

The first line is only executed for debug builds. If you want to validate a window during release builds, you have to make the IsWindow call before calling the constructor. If a thread takes over while doing "m_hWnd = ...) no the m_hWnd could be bad before the call to Attach is made.
]]> Fri, 02 Oct 2020 17:47:17 +0000 http://forum.codejock.com/forum_posts.asp?TID=24063&PID=77890&title=intermittent-crash-in-frame-hook#77890 <![CDATA[Intermittent crash in frame hook : Well, we cant reproduce it either,...]]> http://forum.codejock.com/forum_posts.asp?TID=24063&PID=77871&title=intermittent-crash-in-frame-hook#77871 Author: ericgen34
Subject: 24063
Posted: 25 September 2020 at 3:31am

Well, we cant reproduce it either, and the application is rather big, I cant really send a sample I'm afraid. I just wondered if there are specific areas to look into]]> Fri, 25 Sep 2020 03:31:43 +0000 http://forum.codejock.com/forum_posts.asp?TID=24063&PID=77871&title=intermittent-crash-in-frame-hook#77871 <![CDATA[Intermittent crash in frame hook : Hello,Unfortunately it is not...]]> http://forum.codejock.com/forum_posts.asp?TID=24063&PID=77870&title=intermittent-crash-in-frame-hook#77870 Author: agontarenko
Subject: 24063
Posted: 25 September 2020 at 2:30am

Hello,

Unfortunately it is not clear what exactly is going wrong. Can you please provide more detailed information. If it cannot be re-produced in any of our sample applications provided I would appreciate you sending a sample application so that we could debug it.

Regards,
Artem Gontarenko]]> Fri, 25 Sep 2020 02:30:47 +0000 http://forum.codejock.com/forum_posts.asp?TID=24063&PID=77870&title=intermittent-crash-in-frame-hook#77870 <![CDATA[Intermittent crash in frame hook : Apologies, the call stack screen...]]> http://forum.codejock.com/forum_posts.asp?TID=24063&PID=77861&title=intermittent-crash-in-frame-hook#77861 Author: ericgen34
Subject: 24063
Posted: 22 September 2020 at 5:05am

Apologies, the call stack screen shot didnt show. Here it is copied:

  KERNELBASE.dll!_RaiseException@16() Unknown
  VCRUNTIME140.dll!_CxxThrowException(void * pExceptionObject, const _s__ThrowInfo * pThrowInfo) Line 129 C++
  mfc140u.dll!AfxThrowResourceException() Line 1347 C++
> mfc140u.dll!CWindowDC::CWindowDC(CWnd * pWnd) Line 1018 C++
  ToolkitPro1900vc150U.dll!CXTPCommandBarsFrameHook::RedrawFrame() Line 627 C++
  ToolkitPro1900vc150U.dll!CXTPCommandBarsFrameHook::OnHookMessage(HWND__ * hWnd, unsigned int nMessage, unsigned int & wParam, long & lParam, long & lResult) Line 1025 C++
  ToolkitPro1900vc150U.dll!CXTPHookManager::CHookSink::OnHookMessage(HWND__ * hWnd, unsigned int nMessage, unsigned int & wParam, long & lParam, long & lResult) Line 319 C++
  ToolkitPro1900vc150U.dll!CXTPHookManager::HookWndProc(HWND__ * hWnd, unsigned int message, unsigned int wParam, long lParam) Line 440 C++
  user32.dll!__InternalCallWinProc@20() Unknown
  user32.dll!UserCallWinProcCheckWow() Unknown
  user32.dll!DispatchClientMessage() Unknown
  user32.dll!___fnDWORD@4() Unknown
  ntdll.dll!_KiUserCallbackDispatcher@12() Unknown
  user32.dll!RealDefWindowProcWorker() Unknown
  user32.dll!RealDefWindowProcW() Unknown
  uxtheme.dll!_ThemeDefWindowProc() Unknown
  uxtheme.dll!_ThemeDefWindowProcW@16() Unknown
  user32.dll!DefWindowProcW() Unknown
  user32.dll!DefWindowProcWorker() Unknown
  user32.dll!DefDlgProcWorker() Unknown
  user32.dll!_DefDlgProcW@16() Unknown
  user32.dll!UserCallWinProcCheckWow() Unknown

]]> Tue, 22 Sep 2020 05:05:23 +0000 http://forum.codejock.com/forum_posts.asp?TID=24063&PID=77861&title=intermittent-crash-in-frame-hook#77861 <![CDATA[Intermittent crash in frame hook : Hi,We keep having some intermittent...]]> http://forum.codejock.com/forum_posts.asp?TID=24063&PID=77860&title=intermittent-crash-in-frame-hook#77860 Author: ericgen34
Subject: 24063
Posted: 22 September 2020 at 5:03am

Hi, 

We keep having some intermittent crashes reported by customers that we cannot reproduce in dev. The call stack of a typical crash is shown below.

I wonder if someone has any idea what is going on? Or how we can start looking into this? We are using the framework normally as far as I know

Thank you!

]]> Tue, 22 Sep 2020 05:03:41 +0000 http://forum.codejock.com/forum_posts.asp?TID=24063&PID=77860&title=intermittent-crash-in-frame-hook#77860