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49 ****************************************************************************/
50
51 //! [0]
52 QMouseEvent event(QEvent::MouseButtonPress, pos, 0, 0, 0);
53 QApplication::sendEvent(mainWindow, &event);
54 //! [0]
55
56
57 //! [1]
58 QPushButton *quitButton = new QPushButton("Quit");
59 connect(quitButton, &QPushButton::clicked, &app, &QCoreApplication::quit, Qt::QueuedConnection);
60 //! [1]
61
62
63 //! [2]
64 foreach (const QString &path, app.libraryPaths())
65 do_something(path);
66 //! [2]
67
68
69 //! [3]
70 // Called once QCoreApplication exists
preRoutineMyDebugTool()71 static void preRoutineMyDebugTool()
72 {
73 MyDebugTool* tool = new MyDebugTool(QCoreApplication::instance());
74 QCoreApplication::instance()->installEventFilter(tool);
75 }
76
77 Q_COREAPP_STARTUP_FUNCTION(preRoutineMyDebugTool)
78 //! [3]
79
80
81 //! [4]
82 static int *global_ptr = nullptr;
83
cleanup_ptr()84 static void cleanup_ptr()
85 {
86 delete [] global_ptr;
87 global_ptr = nullptr;
88 }
89
init_ptr()90 void init_ptr()
91 {
92 global_ptr = new int[100]; // allocate data
93 qAddPostRoutine(cleanup_ptr); // delete later
94 }
95 //! [4]
96
97
98 //! [5]
99 class MyPrivateInitStuff : public QObject
100 {
101 public:
initStuff(QObject * parent)102 static MyPrivateInitStuff *initStuff(QObject *parent)
103 {
104 if (!p)
105 p = new MyPrivateInitStuff(parent);
106 return p;
107 }
108
~MyPrivateInitStuff()109 ~MyPrivateInitStuff()
110 {
111 // cleanup goes here
112 }
113
114 private:
MyPrivateInitStuff(QObject * parent)115 MyPrivateInitStuff(QObject *parent)
116 : QObject(parent)
117 {
118 // initialization goes here
119 }
120
121 MyPrivateInitStuff *p;
122 };
123 //! [5]
124
125
126 //! [6]
127 static inline QString tr(const char *sourceText,
128 const char *comment = nullptr);
129 static inline QString trUtf8(const char *sourceText,
130 const char *comment = nullptr);
131 //! [6]
132
133
134 //! [7]
135 class MyMfcView : public CView
136 {
137 Q_DECLARE_TR_FUNCTIONS(MyMfcView)
138
139 public:
140 MyMfcView();
141 ...
142 };
143 //! [7]
144