Toolkit Pro - PostQuitMessage(0) causes crash

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PostQuitMessage(0) causes crash

Printed From: Codejock Forums
Category: Codejock Products
Forum Name: Toolkit Pro
Forum Description: Topics Related to Codejock Toolkit Pro
URL: http://forum.codejock.com/forum_posts.asp?TID=14933
Printed Date: 12 May 2024 at 2:55pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: PostQuitMessage(0) causes crash

Posted By: znakeeye
Subject: PostQuitMessage(0) causes crash
Date Posted: 08 August 2009 at 7:55am

XTP 13.1.

During startup:

XTPImageManager()->InternalAddRef();
m_pItems->SetImageManager(XTPImageManager());

And later:

PostQuitMessage(0);

Causing a crash in CCmdTarget::~CCmdTarget() for CXTPImageManager.

Any ideas?

-------------
PokerMemento - http://www.pokermemento.com/

Replies:

Posted By: Oleg
Date Posted: 10 August 2009 at 3:20am

Hi,

Please show call stack.

-------------
Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS

Posted By: znakeeye
Date Posted: 10 August 2009 at 9:39am

Very easy to reproduce with your SDI-sample:

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)

{

...

PostMessage(WM_COMMAND, ID_STYLES_CHANGE);

return 0;

}

void CMainFrame::OnEmptyCommand()

{

PostQuitMessage(0);

}

Probably not an issue, but still suspect that it crashes like this...

-------------
PokerMemento - http://www.pokermemento.com/

Posted By: Oleg
Date Posted: 12 August 2009 at 3:02am

Hi,

I don't think PostQuitMessage is best way to terminate application - destructor of CMainFrame is not called and its reason of issue. Just close MainWindow instead if you need quit.

-------------
Oleg, Support Team
CODEJOCK SOFTWARE SOLUTIONS

Posted By: znakeeye
Date Posted: 12 August 2009 at 3:14am

I agree, but suppose some badly written code does this. Is it possible to destroy the object somehow? CWinApp::PreTranslateMessage?

-------------
PokerMemento - http://www.pokermemento.com/

Posted By: Tomasz
Date Posted: 13 August 2009 at 5:15pm

Still, I don't see any reason why PostQuitMessage would need to create crash with XTP ? Isn't it a bug?

http://blogs.msdn.com/oldnewthing/archive/2005/11/04/489028.aspx - http://blogs.msdn.com/oldnewthing/archive/2005/11/04/489028.aspx

Posted By: znakeeye
Date Posted: 14 August 2009 at 3:30am

Sure it's a bug.

-------------
PokerMemento - http://www.pokermemento.com/