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40 
41 //! [0]
42 const QStyleOptionFocusRect *focusRectOption =
43         qstyleoption_cast<const QStyleOptionFocusRect *>(option);
44 if (focusRectOption) {
45     ...
46 }
47 //! [0]
48 
49 
50 //! [1]
paintEvent(QPaintEvent * event)51 void MyWidget::paintEvent(QPaintEvent *event)
52 {
53     QPainter painter(this);
54     ...
55 
56     QStyleOptionFocusRect option(1);
57     option.init(this);
58     option.backgroundColor = palette().color(QPalette::Window);
59 
60     style().drawPrimitive(QStyle::PE_FrameFocusRect, &option, &painter,
61                           this);
62 }
63 //! [1]
64 
65 
66 //! [2]
67 void drawControl(ControlElement element,
68                  QPainter *painter,
69                  const QWidget *widget,
70                  const QRect &rect,
71                  const QColorGroup &colorGroup,
72                  SFlags how = Style_Default,
73                  const QStyleOption &option = QStyleOption::Default) const;
74 //! [2]
75 
76 
77 //! [3]
78 void drawControl(ControlElement element,
79                  const QStyleOption *option,
80                  QPainter *painter,
81                  const QWidget *widget = 0) const;
82 //! [3]
83