Close window mfc C++

Question

0.00/5 (No votes)

See more:

I have a dialog that opens an other dialog, I must close only the second dialog
if I use this code:

ASSERT(AfxGetMainWnd() != NULL);
AfxGetMainWnd()->SendMessage(WM_CLOSE);

I close the first and the second dialog, how must I do?

What I have tried:

<pre>
	ASSERT(AfxGetMainWnd() != NULL);
	AfxGetMainWnd()->SendMessage(WM_CLOSE);

Posted 1-Sep-21 4:39am

Member 14594285

Updated 1-Sep-21 4:52am

Add a Solution

1 solution

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)

OriginalGriff · Accepted Answer · 2021-09-01T04:52:00

AfxGetMainWnd[^] does what the name suggests - it fetches the main window CWnd for the application.
So sending a WM_CLOSE message to that will always close the application, and both windows.

What you need to do is send WM_CLOSE to the second dialog - which means locating the CWnd instance for that. If you are using CDialog as the base class, it derives from CWnd, so you can get it directly from your constructed instance before you display it.