Re: Out of Memory Error: MultiThreading Problem?

From:
 Marcus <mcdesigns@walla.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Mon, 05 Nov 2007 15:10:03 -0800
Message-ID:
<1194304203.281201.168210@e34g2000pro.googlegroups.com>
Replying to comments I fell are relevant to my original question.

I explained the "reports back" process as matching the message routine
of the other threads... ie using the MessageMgr class' function
SendMsgToDlg which I outlined above. So:

void AppMsgProcessor::ProcessMessage(WPARAM wp, LPARAM lp){
  ... // Do something to convert lp to CString and process
  MessageMgr msg;
  msg.SendMsgToDlg(lpConvertedtoCString, LISTCTRL_1);
}


****
And what dialog does it send it to? You are creating a brand-new instance of a
MessageMgr, and I see nothing that associates it with any particular dialog


Again, as was already stated a few times now, it is sent back to the
GUI thread/dialog: MyDlg.

****> CString * s = new CString(strMsg);

 pDlg->PostMessage( UWM_ADDSTRING, msgType, LPARAM(s));


****
How is pDlg initialized? Given that this MessageMgr instance was not created until
AppMsgProcessor::ProcessMessage, how does it get a pDlg?
****>}


Sorry, I thought it was a pointer... the correct code is:
            HWND hWnd=AfxGetApp()->m_pMainWnd->m_hWnd;
    PostMessageA( hWnd, UWM_ADDSTRING, msgType, LPARAM(s));

Are you using multithreading anywhere? Note that freezing up is one of the typical
manifestations of an implicit or explicit SendMessage call that crosses thread boundaries.
joe


Yes, as stated, I am using multithreading. Thanks for your help.

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