Method closeEvent

DSView/pv/mainframe.cpp:298–317

}

void MainFrame::closeEvent(QCloseEvent *event)
{ 
    writeSettings();

    if (_mainWindow->able_to_close()){
        
#ifdef _WIN32
        if (_parentNativeWidget != NULL){
            _parentNativeWidget->SetChildWidget(NULL);
            setVisible(false);
            _parentNativeWidget->Show(false);                   
        }
#endif

        event->accept();
    }
    else{
        event->ignore();
    }
}

void MainFrame::unfreezing()
{