Codejock Developer Community : Access violation when exit application http://forum.codejock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Mon, 06 Apr 2026 13:35:28 +0000 Wed, 22 Mar 2006 04:46:49 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 forum.codejock.com/RSS_post_feed.asp?TID=3824 <![CDATA[Codejock Developer Community]]> http://forum.codejock.com/forum_images/codejock-logo.gif http://forum.codejock.com/ <![CDATA[Access violation when exit application : Finally I found my error:In CMainFrame::OnCreateControl...]]> http://forum.codejock.com/forum_posts.asp?TID=3824&PID=11604&title=access-violation-when-exit-application#11604 Author: JoseAngel
Subject: 3824
Posted: 22 March 2006 at 4:46am

Finally I found my error:

In CMainFrame::OnCreateControl I was assigning in lpCreateControl->pControl a stack object, not a heap one.

When I change the stack control and become a pointer the application never crash when finish the application.

The error was really difficult to found.

Thank you.
]]> Wed, 22 Mar 2006 04:46:49 +0000 http://forum.codejock.com/forum_posts.asp?TID=3824&PID=11604&title=access-violation-when-exit-application#11604 <![CDATA[Access violation when exit application : I already found the source of...]]> http://forum.codejock.com/forum_posts.asp?TID=3824&PID=11599&title=access-violation-when-exit-application#11599 Author: JoseAngel
Subject: 3824
Posted: 22 March 2006 at 1:45am

I already found the source of error, ant it fault even with your samples.

Open your project PaneView.

Edit the file PaneView.h and add in the begining of the CPaneView class definition the line in red color....

class CPaneView : public CView
{
        CXTPControlComboBox    m_wndTest;

protected: // create from serialization only
 ....

Now compile and execute in release. When you close the application, it throw an exception.

]]> Wed, 22 Mar 2006 01:45:24 +0000 http://forum.codejock.com/forum_posts.asp?TID=3824&PID=11599&title=access-violation-when-exit-application#11599 <![CDATA[Access violation when exit application : Hello, No, CXTPAccessible::GetAccessible...]]> http://forum.codejock.com/forum_posts.asp?TID=3824&PID=11583&title=access-violation-when-exit-application#11583 Author: Oleg
Subject: 3824
Posted: 21 March 2006 at 12:30pm

Hello,

 

No, CXTPAccessible::GetAccessible never calls because it overriden in implementations:

for example:


CCmdTarget* CXTPCommandBar::GetAccessible()
{
 return this;
}

 

Please, try to reproduce it with some our sample.

 

]]> Tue, 21 Mar 2006 12:30:13 +0000 http://forum.codejock.com/forum_posts.asp?TID=3824&PID=11583&title=access-violation-when-exit-application#11583 <![CDATA[Access violation when exit application : With v9.81 of the library, my...]]> http://forum.codejock.com/forum_posts.asp?TID=3824&PID=11582&title=access-violation-when-exit-application#11582 Author: JoseAngel
Subject: 3824
Posted: 21 March 2006 at 12:13pm

With v9.81 of the library, my application (only in Release, never in Debug) generates an exception when exit.

Finally I discovered the problem is in the method STDMETHODIMP CXTPAccessible::XAccessible::QueryInterface.

The method code is:

STDMETHODIMP CXTPAccessible::XAccessible::QueryInterface(
    REFIID iid, LPVOID* ppvObj)
{
    METHOD_PROLOGUE_EX_(CXTPAccessible, ExternalAccessible)
    return (HRESULT)pThis->GetAccessible()->ExternalQueryInterfac e(&iid, ppvObj);
}

Tracing pThis->GetAccessible(), the method call to the method CXTPAccessible::GetAccessible() with source code:

CCmdTarget* CXTPAccessible::GetAccessible()
{
    ASSERT(FALSE);
    return NULL;
}

So it means the first method finally is something like this:

STDMETHODIMP CXTPAccessible::XAccessible::QueryInterface(
    REFIID iid, LPVOID* ppvObj)
{
    METHOD_PROLOGUE_EX_(CXTPAccessible, ExternalAccessible)
    return     (HRESULT)NULL->ExternalQueryInterface(&iid, ppvObj);
}


Maybe pThis in CXTPAccessible::XAccessible shoud be something different than CXTPAccessible (an inherited class)

Is this a problem of the library or a problem of my software?

Thanks.

]]> Tue, 21 Mar 2006 12:13:27 +0000 http://forum.codejock.com/forum_posts.asp?TID=3824&PID=11582&title=access-violation-when-exit-application#11582