?
Solved

SDI main frame and WM_ENDSESSION

Posted on 2004-10-10
2
Medium Priority
?
1,098 Views
Last Modified: 2013-11-20
I added WM_ENDSESSION handler to CMainFrame class of SDI application:

void CMainFrame::OnEndSession(BOOL bEnding)
{
    CFrameWnd::OnEndSession(bEnding);

    if ( bEnding )
        Beep(300, 300);
}

When I reboot/log off while program is running, this function is not called. If I do the same in MDI application, it works - I hear beep. How can I handle computer shitdown/log off event in SDI application?
0
Comment
Question by:AlexFM
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 86

Accepted Solution

by:
jkr earned 2000 total points
ID: 12272304
The reason seems to lie in the call to

CFrameWnd::OnEndSession(bEnding);

because it does

// when Windows session ends, close all documents
void CFrameWnd::OnEndSession(BOOL bEnding)
{
    if (!bEnding)
        return;

    CWinApp* pApp = AfxGetApp();
    if (pApp != NULL && pApp->m_pMainWnd == this)
    {
        AfxOleSetUserCtrl(TRUE);    // keeps from randomly shutting down
        pApp->CloseAllDocuments(TRUE);

        // allow application to save settings, etc.
        pApp->ExitInstance();
    }
}

call ExitInstance() directly. You'll hear the beep if you call the base class' implementation after your code.

BTW:

>>How can I handle computer shitdown/log off event in SDI application?

I *love* that typo, it made my day :o)
0
 
LVL 48

Author Comment

by:AlexFM
ID: 12305732
Thanks :-)
0

Featured Post

Percona Live Europe 2017 | Sep 25 - 27, 2017

The Percona Live Open Source Database Conference Europe 2017 is the premier event for the diverse and active European open source database community, as well as businesses that develop and use open source database software.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction: Finishing the grid – keyboard support for arrow keys to manoeuvre, entering the numbers.  The PreTranslateMessage function is to be used to intercept and respond to keyboard events. Continuing from the fourth article about sudoku. …
Introduction: Database storage, where is the exe actually on the disc? Playing a game selected randomly (how to generate random numbers).  Error trapping with try..catch to help the code run even if something goes wrong. Continuing from the seve…
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
This is my first video review of Microsoft Bookings, I will be doing a part two with a bit more information, but wanted to get this out to you folks.
Suggested Courses

800 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question