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50 
51 //! [0]
52 const QStyleOptionFocusRect *focusRectOption =
53         qstyleoption_cast<const QStyleOptionFocusRect *>(option);
54 if (focusRectOption) {
55     ...
56 }
57 //! [0]
58 
59 
60 //! [1]
paintEvent(QPaintEvent * event)61 void MyWidget::paintEvent(QPaintEvent *event)
62 {
63     QPainter painter(this);
64     ...
65 
66     QStyleOptionFocusRect option(1);
67     option.init(this);
68     option.backgroundColor = palette().color(QPalette::Window);
69 
70     style().drawPrimitive(QStyle::PE_FrameFocusRect, &option, &painter,
71                           this);
72 }
73 //! [1]
74 
75 
76 //! [2]
77 void drawControl(ControlElement element,
78                  QPainter *painter,
79                  const QWidget *widget,
80                  const QRect &rect,
81                  const QColorGroup &colorGroup,
82                  SFlags how = Style_Default,
83                  const QStyleOption &option = QStyleOption::Default) const;
84 //! [2]
85 
86 
87 //! [3]
88 void drawControl(ControlElement element,
89                  const QStyleOption *option,
90                  QPainter *painter,
91                  const QWidget *widget = 0) const;
92 //! [3]
93