Re: modeless child dialog notifying parent

From:

"Nick Schultz" <nick.schultz@flir.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Thu, 14 Aug 2008 18:19:06 -0700

Message-ID:

<#0R$qTn$IHA.4740@TK2MSFTNGP03.phx.gbl>

Actually, my method of using OnActvate works...

void CDataGrapherDlg::OnActivate(UINT nState, CWnd* pWndOther, BOOL
bMinimized)
{
    CDialog::OnActivate(nState, pWndOther, bMinimized);
    if(m_TrigDlg && m_DataSrcDlg)
        if(nState == WA_ACTIVE && pWndOther == m_TrigDlg &&
!m_TrigDlg->IsWindowVisible())
              //reset button
       else if(nState == WA_ACTIVE && pWndOther == (CWnd*)m_DataSrcDlg &&
!m_DataSrcDlg->IsWindowVisible())
            //reset button
}

can anybody confirm that the parent window always gets focus after a child
dialog closes?

Nick

"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp> wrote in message
news:e9Z3mPn$IHA.2244@TK2MSFTNGP05.phx.gbl...

"Nick Schultz" <nick.schultz@flir.com> wrote in message
news:evM522m$IHA.3380@TK2MSFTNGP04.phx.gbl...

How do you get the child modeless dialog to notify the parent that the
user closed the window?

I have a push button that is depressed when the window is visible, and
normal when the window is invisible. I need to know if the user closed
the window so I can reset the push button.

Running spy++ shows that there isn't a message being sent that....

Your child window can send its own custom message.

// child.h
#define UWM_CHILD_CLOSED

// child.cpp, in OnClose or similar
GetParent()->SendMessage(UWM_CHILD_CLOSED, 0, 0);

//The parent would use this in its message map:
ON_MESSAGE(UWM_CHILD_CLOSED, OnChildClosed)

// and the message handler function must have this signature:
LRESULT CTheParentWnd::OnChildClosed(WPARAM w, LPARAM l)
{ ...
return 0;
}

--
Scott McPhillips [VC++ MVP]