open dialog by condition

Question

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Hello,

I want to make a dialog that get opened only if a condition occurs.
in the dialog, I will have ok button and cancel button, and I want to continue only if user presses OK.

for example:

if (condition)
{
 open dialog.
 if user clicked OK, do something
 else do something else
}

How can I do it using MFC?

Thanks

Posted 17-Jan-12 1:55am

user_code

Updated 17-Jan-12 2:18am

CPallini

v2

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Comments

Sergey Alexandrovich Kryukov 17-Jan-12 23:41pm

OK, this is a pseudo-code. Now write some code out of it. You did not explain main thing -- what's the problem?
--SA

5 solutions

Solution 1

In a glance, you need a modal dialog. I think there's a plethora of tutorials[^] on the web.

Posted 17-Jan-12 2:21am

CPallini

Solution 4

Hi,

I think you don't need a dialog, instead you only need a MessageBox()

you can use the MessageBox like this;

if(IDOK== MessageBox(""))
{

}
else
{

}

Cheers

Posted 17-Jan-12 16:39pm

Satheesh1546

Solution 5

ha,Maybe you will like the API:GetOpenFileName,It is suiteable to you~~
http://msdn.microsoft.com/en-us/library/windows/desktop/ms646927(v=vs.85).aspx[^]

Posted 17-Jan-12 17:02pm

Keanu L

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Jochen Arndt · Accepted Answer · 2012-01-17T02:36:00

Solution 2

This is usually done calling DoModal() of your dialog and using the return value:

C++

if (condition)
{
    CMyDialog Dlg;
    if (Dlg.DoModal() == IDOK)
    {
        // OK pressed
    }
    else
    {
        // Dialog cancelled
    }
}

Posted 17-Jan-12 2:36am

Jochen Arndt

Comments

Schehaider_Aymen 17-Jan-12 8:55am

only extra information, you have to include the .h too


#include "CMyDialog.h"

Albert Holguin · Accepted Answer · 2012-01-17T05:14:00

This is trivial...

If you only need to display information, use a AfxMessageBox() (it's easy to use), if you need a dialog, then make a dialog derived from the CDialog MFC class and use the CDialog::DoModal() method to bring up the dialog (this is if you want to make it modal, to make it modeless, create it first then bring it up using ShowWindow()).

Override CDialog::OnInitDialog() to update any controls you may be using within the dialog (DO NOT do this in the constructor! This is a common mistake, the controls have not been created at this point).

open dialog by condition

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