Avoid MainWindow from closing

[AlexSudnik]

QToolButton button ;
 
button.setFocusPolicy( Qt::ClickFocus ) ; // explicitly set widget's focus policy : " the widget accepts focus by clicking. ". Look at the QWidget::setFocusPolicy function description

QToolButton button ;

button.setFocusPolicy( Qt::ClickFocus ) ; // explicitly set widget's focus policy : " the widget accepts focus by clicking. ". Look at the QWidget::setFocusPolicy function description

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[KillGabio]

Thanks Alex