MFC, Press "X" or "Close” it should be sent a WM_close message

Question

3.00/5 (2 votes)

See more:

Hi I have a simple MFC applications which when I press "X" or "Close” it should be sent a WM_close message which I try to catch it in my PreTranslateMessage(MSG* pMsg). But It dosent come. What should I do to catch the WM_close message?
Thanks in advance
M.H

BOOL CMainFrame::PreTranslateMessage(MSG* pMsg)
{
	TRACE("\n MSG %d", pMsg->message);
	if(pMsg->message == WM_CLOSE)
		MessageBox("WM_CLOSE");
	else if(pMsg->message == WM_QUIT)
		MessageBox("WM_QUIT");
	else if(pMsg->message == WM_DESTROY )
		MessageBox("WM_DESTROY");
    return __super::PreTranslateMessage(pMsg); // allow default behavior
}

Posted 10-Nov-11 7:33am

merh

Updated 10-Nov-11 8:44am

Chris Meech

v2

Add a Solution

3 solutions

Solution 2

you need to handle the WM_CLOSE message seperatly

add ON_WM_CLOSE() to your message map, and then add a function to CMainFrame of type afx_msg void OnClose();

Posted 10-Nov-11 9:07am

Andrew Brock

Solution 1

Have a look at WM_SYSCOMMAND. I think that is how to override default close and exit type behaviour.

Posted 10-Nov-11 8:43am

Chris Meech

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Chuck O'Toole · Accepted Answer · 2011-11-10T09:34:00

Solution 3

The Big [X] or system menu (in the icon) of Close (Alt+F4) comes in through "ON_WM_SYSCOMMAND". In your processing look for "SC_CLOSE"

C#

void YourClass::OnSysCommand(UINT nID, LPARAM lParam)
{
    if ((nID & 0xFFF0) == SC_CLOSE)
        {
        }
}

Posted 10-Nov-11 9:34am

Chuck O'Toole

Updated 10-Nov-11 9:36am

v2

Comments

merh 10-Nov-11 17:29pm

It works, Thanks a lot
M.H