restoring app also restores iconic tool dialogs

void CToolDlg::OnShowWindow(BOOL bShow, UINT nStatus) 
{
    // When an iconic app is restored, by default any iconic modeless dialogs
    // it owns are also restored. Clobbering their iconic states clutters the
    // screen, and violates the expectation that a restored app should appear
    // just as it did when it was minimized. The workaround is to skip CWnd's
    // behavior in this case, and rely on the main frame to hide and show any
    // iconic modeless dialogs.
    if (nStatus && IsIconic())  // if parent opening/closing and we're iconic
        return; // do nothing
    CPersistDlg::OnShowWindow(bShow, nStatus);
}

Thanks:
Kevin
Jim
Walter
Andy
Katya