When i close exe then its istantce is not removed from the task manager.

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M Whenever i run my application it works fine but when i terminate it with close button on gui then its instance continuously present in task manager.
I have to manually terminate it .
M giving code for close button.

void CFace_RecognitionDlg::OnBnClickedClose()  // Close the dialog box 
{
    if(dbNames)                  //Deallocating the array of CString
    {
        delete [] dbNames;
        dbNames = NULL;
    }
    KillTimer(TIMER_STREAM_PREVIEW);    //Timer to preview 
                                        //the camera stream on dialog 
                                        //killing that preview timer.

    //Deinitialize Web Camera interface.
    capCaptureStop(hWndC);
    capDriverDisconnect(hWndC);
    hWndC=NULL;
    
    m_hBmp=NULL;
    dcMem.Detach();
    //Update UI accordingly
    UpdateData(false);
    InvalidateRect(m_rectFrame);
    OnPaint();
    CDialog::OnClose();
    PostQuitMessage(0);
}

Can anybody suggest solution for it.

Regards
Ramkrishna

Posted 21-Jan-10 19:24pm

ramkrishna.jangale

Updated 21-Jan-10 21:20pm

Harvey Saayman

v2

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stebich · Answer 1 · 2010-01-21T21:21:00

Solution 2

When your application doesn't terminate, you should look in the CWinApp part of your project, e.g. InitInstance() and ExitInstance().

Posted 21-Jan-10 21:21pm

stebich

Rajesh R Subramanian · Answer 2 · 2010-01-23T05:21:00

ramkrishna.jangale wrote:
CDialog::OnClose();
PostQuitMessage(0);

Remove CDialog::OnClose() and PostQuitMessage(0);

Call CDialog::OnCancel() instead to shut down a dialog based application.

Another poster mentioned that some worker thread may be running, keeping the app alive. That's wrong. Such a thing can can never happen in a native language program (like C++). When the main thread comes to a halt, every other thread will be killed abruptly.

Harvey Saayman · Answer 3 · 2010-01-21T21:19:00

Solution 1

Are you using any threads other than the UI thread in this app?

If yes those other thread(s) might still be running and keeping the application open.

Hope this helps

Posted 21-Jan-10 21:19pm

Harvey Saayman