Codejock Developer Community : CXTPTaskDialog dynamic allocation and deletion http://forum.codejock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 04 Apr 2026 09:10:36 +0000 Sat, 12 Apr 2008 01:55:27 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 forum.codejock.com/RSS_post_feed.asp?TID=10177 <![CDATA[Codejock Developer Community]]> http://forum.codejock.com/forum_images/codejock-logo.gif http://forum.codejock.com/ <![CDATA[CXTPTaskDialog dynamic allocation and deletion : Hi, Well, I am not sure about...]]> http://forum.codejock.com/forum_posts.asp?TID=10177&PID=33544&title=cxtptaskdialog-dynamic-allocation-and-deletion#33544 Author: solo
Subject: 10177
Posted: 12 April 2008 at 1:55am

Hi,
 
Well, I am not sure about the exact problem but I agree that the problem shouldn't be with the heap if PostNcDestroy is not called rather it should a simple memory leak. Seems like I am messing up the threads in my application. I will try to resolve the issue and complete this thread by mentioning my mistake.
 
Thanks a lot for help (everybody).
]]> Sat, 12 Apr 2008 01:55:27 +0000 http://forum.codejock.com/forum_posts.asp?TID=10177&PID=33544&title=cxtptaskdialog-dynamic-allocation-and-deletion#33544 <![CDATA[CXTPTaskDialog dynamic allocation and deletion : Hi Solo; Another suggestion: What...]]> http://forum.codejock.com/forum_posts.asp?TID=10177&PID=33462&title=cxtptaskdialog-dynamic-allocation-and-deletion#33462 Author: mgampi
Subject: 10177
Posted: 11 April 2008 at 2:20am

Hi Solo;
 
Another suggestion:
 
What about using a std::auto_ptr<CWaitDialog> member in the parent class of your dialog?
]]> Fri, 11 Apr 2008 02:20:08 +0000 http://forum.codejock.com/forum_posts.asp?TID=10177&PID=33462&title=cxtptaskdialog-dynamic-allocation-and-deletion#33462 <![CDATA[CXTPTaskDialog dynamic allocation and deletion : Hi Oleg; but wouldn&#039;t...]]> http://forum.codejock.com/forum_posts.asp?TID=10177&PID=33461&title=cxtptaskdialog-dynamic-allocation-and-deletion#33461 Author: mgampi
Subject: 10177
Posted: 11 April 2008 at 1:51am

Hi Oleg;
 
but wouldn't this result in a memory leak instead of a heap corruption?
]]> Fri, 11 Apr 2008 01:51:29 +0000 http://forum.codejock.com/forum_posts.asp?TID=10177&PID=33461&title=cxtptaskdialog-dynamic-allocation-and-deletion#33461 <![CDATA[CXTPTaskDialog dynamic allocation and deletion : Hi, Problem can be with virtual...]]> http://forum.codejock.com/forum_posts.asp?TID=10177&PID=33450&title=cxtptaskdialog-dynamic-allocation-and-deletion#33450 Author: Oleg
Subject: 10177
Posted: 11 April 2008 at 1:02am

Hi,
Problem can be with virtual void PostNcDestroy()
In Vista we use System TaskDialog - and PostNcDestroy will be never called.]]> Fri, 11 Apr 2008 01:02:25 +0000 http://forum.codejock.com/forum_posts.asp?TID=10177&PID=33450&title=cxtptaskdialog-dynamic-allocation-and-deletion#33450 <![CDATA[CXTPTaskDialog dynamic allocation and deletion : Hi; Can you show the call stack...]]> http://forum.codejock.com/forum_posts.asp?TID=10177&PID=33436&title=cxtptaskdialog-dynamic-allocation-and-deletion#33436 Author: mgampi
Subject: 10177
Posted: 10 April 2008 at 3:07pm

Hi;
 
Can you show the call stack when the app core dumps; where and how is m_pWaitDlg constructed?
]]> Thu, 10 Apr 2008 15:07:09 +0000 http://forum.codejock.com/forum_posts.asp?TID=10177&PID=33436&title=cxtptaskdialog-dynamic-allocation-and-deletion#33436 <![CDATA[CXTPTaskDialog dynamic allocation and deletion : Hi, What is wrong with this...]]> http://forum.codejock.com/forum_posts.asp?TID=10177&PID=33434&title=cxtptaskdialog-dynamic-allocation-and-deletion#33434 Author: solo
Subject: 10177
Posted: 10 April 2008 at 2:20pm

Hi,
 
What is wrong with this class.
 

class CWaitDialog : public CXTPTaskDialog

{

public:

CWaitDialog(CWnd* pWndParent, CString csTitle, CString csInstruction, LPCWSTR pszIconResource = TD_INFORMATION_ICON)

: CXTPTaskDialog(pWndParent)

{

SetWindowTitle(csTitle);

SetMainInstruction(csInstruction);

SetMainIcon(pszIconResource);

SetCommonButtons(TDCBF_CANCEL_BUTTON);

ShowProgressBar(TRUE, TRUE);

}

virtual void OnDialogConstructed()

{

if (m_config.dwFlags & TDF_SHOW_PROGRESS_BAR)

SetProgressBarPos(60);

if (m_config.dwFlags & TDF_SHOW_MARQUEE_PROGRESS_BAR)

StartProgressBarMarquee(1, 50);

EnableButton(IDCANCEL, FALSE);

}

virtual void PostNcDestroy()

{

// TODO: Add your specialized code here and/or call the base class

CXTPTaskDialog::PostNcDestroy();

// Release resources from heap

delete this;

}

};

When I call

m_pWaitDlg->ClickButton(IDCANCEL);

where m_pWaitDlg is the pointer to the object created in heap, every thing seems fine. But when I close my main application, the debugger open free.c and shows me this line.

retval = HeapFree(_crtheap, 0, pBlock); [Line 109]

What is the problem. Why is there a corruption in heap.
 
Thanks
]]> Thu, 10 Apr 2008 14:20:15 +0000 http://forum.codejock.com/forum_posts.asp?TID=10177&PID=33434&title=cxtptaskdialog-dynamic-allocation-and-deletion#33434