assertion failed during closing application
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From: Mammoth on 19 Apr 2007 18:39 Hello I got strange error when I try close my application. Debug Assertion Failed.... in file.... cmdtarg.cpp line 43 Code in this file is: #ifndef _AFX_NO_OLE_SUPPORT if (m_xDispatch.m_vtbl != 0) ((COleDispatchImpl*)&m_xDispatch)->Disconnect(); ASSERT(m_dwRef <= 1); //line 43 What does it mean ? Earlier all worked good... I changed accidentally something in code or in controls and this error doesn't allow me close the application. I can't find mistake...
From: Doug Harrison [MVP] on 19 Apr 2007 18:47 On 19 Apr 2007 15:39:39 -0700, Mammoth <cactusek(a)gmail.com> wrote: >Hello >I got strange error when I try close my application. >Debug Assertion Failed.... >in file.... cmdtarg.cpp line 43 >Code in this file is: > >#ifndef _AFX_NO_OLE_SUPPORT > if (m_xDispatch.m_vtbl != 0) > ((COleDispatchImpl*)&m_xDispatch)->Disconnect(); > ASSERT(m_dwRef <= 1); //line 43 > >What does it mean ? >Earlier all worked good... >I changed accidentally something in code or in controls and this error >doesn't allow me close the application. >I can't find mistake... The m_dwRef member variable is a COM object reference count. Thus, the assertion probably indicates that Release wasn't called as many times as AddRef was called. This could occur if someone obtained an interface and forgot to release it, or an exception was thrown between AddRef and Release calls in exception-unsafe code, etc. -- Doug Harrison Visual C++ MVP
From: Mammoth on 19 Apr 2007 19:02 What can I do and how find mistake? I check interface and I don't see any oversightes. Why error is only during closing application ? >or an exception was thrown between AddRef and Release calls in exception-unsafe code could you say me how to avoid this ?
From: Doug Harrison [MVP] on 19 Apr 2007 19:14 On 19 Apr 2007 16:02:00 -0700, Mammoth <cactusek(a)gmail.com> wrote: >What can I do and how find mistake? See if this article helps; I discovered it yesterday while researching something else: Did you know... How to Debug AddRef/Release Issues in Visual Studio? http://blogs.msdn.com/saraford/archive/2005/05/03/414385.aspx If all else fails, a brute force approach is to disable things until it no longer fails and add stuff back until it does. > I check interface and I don't see any oversightes. >Why error is only during closing application ? Because the assertion is in the CCmdTarget destructor, and the object, whatever it is (you didn't say), is being destroyed at that time. >>or an exception was thrown between AddRef and Release >calls in exception-unsafe code > >could you say me how to avoid this ? Typically you use smart pointers. -- Doug Harrison Visual C++ MVP
From: Mammoth on 20 Apr 2007 06:33
I exchanged script.rc for older version this file and now is ok. I don't know what was wrong. |