Re: Dynamically creating CDockablePanes

From:

=?Utf-8?B?TmljayBTY2h1bHR6?= <NickSchultz@discussions.microsoft.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Fri, 2 May 2008 14:05:00 -0700

Message-ID:

<D612E2E1-97E6-4FC4-ADC2-670252FC882C@microsoft.com>

Here is the code for the button that creates the window:

void CMainFrame::OnRmtSend2Btn()
{
    CGrapher* newWnd;
    newWnd = new CGrapher();

    if(!newWnd->Create(_T("Graph Window"), this, CRect(0, 0, 300, 300), TRUE
,m_windowCounter++, WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN
| CBRS_RIGHT | CBRS_FLOAT_MULTI))
    {
        TRACE0("Failed to create BITWnd window\n");
        return; // failed to create
    }

    newWnd->EnableDocking(CBRS_ALIGN_ANY);

    DockPane(newWnd);

    return;

}

"Joseph M. Newcomer" wrote:

If you are allocating them on the heap, with new, the easiest way is to add a
PostNcDestroy handler to your class whose body says
delete this;
replacing the TODO: line.

You cannot delete an object earlier than the PostNcDestroy handler.
joe

On Fri, 2 May 2008 10:59:01 -0700, Nick Schultz <NickSchultz@discussions.microsoft.com>
wrote:

Hi there,

My user will need to be able to open any number of graphing
windows(CDockablePane) in my application. When the window is closed, I want
the pane to be destroyed.

In order to do this I will have my window catch the press close button event
(CPane::OnPressCloseButton) and then have it call DestroyWindow().

reading DestroyWindow description, it looks like it does everything but it
does not destroy the CWnd object.

So how do I destroy the CWnd object? Do i just simply need to call delete
(pointer to graph window). I was thinking I could override the NotifyParent
function to catch child destroyed event and then deleting it then, however
the parent gets notified BEFORE any destruction takes place.

I'm not sure if this is possible, but after calling DestroyWindow() within
the OnPressCloseButton() function, could I just call "delete this" to free
up any memory used by the graph window?

Any suggestions are greatly appreciated.

Nick

Joseph M. Newcomer [MVP]
email: newcomer@flounder.com
Web: http://www.flounder.com
MVP Tips: http://www.flounder.com/mvp_tips.htm