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50 
51 //! [0]
52 w->setWindowState(w->windowState() ^ Qt::WindowFullScreen);
53 //! [0]
54 
55 
56 //! [1]
57 w->setWindowState((w->windowState() & ~Qt::WindowMinimized) | Qt::WindowActive);
58 //! [1]
59 
60 
61 //! [2]
62 width = baseSize().width() + i * sizeIncrement().width();
63 height = baseSize().height() + j * sizeIncrement().height();
64 //! [2]
65 
66 
67 //! [3]
68 aWidget->window()->setWindowTitle("New Window Title");
69 //! [3]
70 
71 
72 //! [4]
73 QFont font("Helvetica", 12, QFont::Bold);
74 setFont(font);
75 //! [4]
76 
77 
78 //! [5]
79 QFont font;
80 font.setBold(false);
81 setFont(font);
82 //! [5]
83 
84 
85 //! [6]
86 setCursor(Qt::IBeamCursor);
87 //! [6]
88 
89 
90 //! [7]
91 QPixmap pixmap(widget->size());
92 widget->render(&pixmap);
93 //! [7]
94 
95 
96 //! [8]
97 QPainter painter(this);
98 ...
99 painter.end();
100 myWidget->render(this);
101 //! [8]
102 
103 
104 //! [9]
105 setTabOrder(a, b); // a to b
106 setTabOrder(b, c); // a to b to c
107 setTabOrder(c, d); // a to b to c to d
108 //! [9]
109 
110 
111 //! [10]
112 // WRONG
113 setTabOrder(c, d); // c to d
114 setTabOrder(a, b); // a to b AND c to d
115 setTabOrder(b, c); // a to b to c, but not c to d
116 //! [10]
117 
118 
119 //! [11]
closeEvent(QCloseEvent * event)120 void MyWidget::closeEvent(QCloseEvent *event)
121 {
122     QSettings settings("MyCompany", "MyApp");
123     settings.setValue("geometry", saveGeometry());
124     QWidget::closeEvent(event);
125 }
126 //! [11]
127 
128 
129 //! [12]
130 QSettings settings("MyCompany", "MyApp");
131 myWidget->restoreGeometry(settings.value("myWidget/geometry").toByteArray());
132 //! [12]
133 
134 
135 //! [13]
136 setUpdatesEnabled(false);
137 bigVisualChanges();
138 setUpdatesEnabled(true);
139 //! [13]
140