Modeless dialog disappears in MFC, NOT caused by OnOK.

I have a modeless dialog box derived from CDialog with OnOK and OnCancel both overridden as {}. However, if the dialog itself has focus (ie not a button, radiobox, etc) and the user presses SPACE, RETURN, or ENTER the box becomes invisible but is not destroyed. Any idea of what messages/commands I should be looking for that would cause this to happen?
rosenavAsked:
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AlexFMCommented:
Override PreTranslateMessage function:

BOOL CMyDlg::PreTranslateMessage(MSG* pMsg)
{
    if( pMsg->message == WM_KEYDOWN )
    {
        if( pMsg->wParam == VK_RETURN ||  pMsg->wParam == VK_ESCAPE )  
        // AFAIK, Enter or Escape close the dialog. You can add other keys to ignore, for example, VK_SPACE
        {
            ::TranslateMessage(pMsg);
            ::DispatchMessage(pMsg);
            return TRUE;
        }
    }
      
    return CDialog::PreTranslateMessage(pMsg);
}
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mac-will01Commented:
This is strange behaviour.  I just quickly tried a dummy project and I found that I didn't get this behaviour.
Can you post some code maybe?
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rosenavAuthor Commented:
Great suggestion AlexFM. Didn't solve my problem but it did show that the dialog isn't recieving RETURN or ESC keys. In fact, nothing on the dialog has the little dotted-line focus highlight painted on it until I specifically click one of the controls. After that point it behaves as expected (doesn't disappear anymore). Is there a reliable way to force a control to have the focus?
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rosenavAuthor Commented:
I still don't know why the dialog was disappearing but I was able to make it stop by forcing an arbitrary control in the dialog to have the focus.
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