QCoreApplication Class Reference
[QtCore module]

void QCoreApplication::postEvent ( QObject * receiver, QEvent * event )   [static]

Adds the event event, with the object receiver as the receiver of the event, to an event queue and returns immediately.

The event must be allocated on the heap since the post event queue will take ownership of the event and delete it once it has been posted. It is not safe to modify or delete the event after it has been posted.

When control returns to the main event loop, all events that are stored in the queue will be sent using the notify() function.

Events are processed in the order posted. For more control over the processing order, use the postEvent() overload below, which takes a priority argument. This function posts all event with a Qt::NormalEventPriority.

Note: This function is thread-safe.

See also sendEvent(), notify(), and sendPostedEvents().

void QCoreApplication::postEvent ( QObject * receiver, QEvent * event, int priority )   [static]

This function overloads postEvent().

Adds the event event, with the object receiver as the receiver of the event, to an event queue and returns immediately.

The event must be allocated on the heap since the post event queue will take ownership of the event and delete it once it has been posted. It is not safe to modify or delete the event after it has been posted.

When control returns to the main event loop, all events that are stored in the queue will be sent using the notify() function.

Events are sorted in descending priority order, i.e. events with a high priority are queued before events with a lower priority. The priority can be any integer value, i.e. between INT_MAX and INT_MIN, inclusive; see Qt::EventPriority for more details. Events with equal priority will be processed in the order posted.

Note: This function is thread-safe.

This function was introduced in Qt 4.3.

See also sendEvent(), notify(), sendPostedEvents(), and Qt::EventPriority.

 QPushButton *quitButton = new QPushButton("Quit");
 connect(quitButton, SIGNAL(clicked()), &app, SLOT(quit()));

 QMouseEvent event(QEvent::MouseButtonPress, pos, 0, 0, 0);
 QApplication::sendEvent(mainWindow, &event);

 static int *global_ptr = 0;

 static void cleanup_ptr()
 {
     delete [] global_ptr;
     global_ptr = 0;
 }

 void init_ptr()
 {
     global_ptr = new int[100];      // allocate data
     qAddPostRoutine(cleanup_ptr);   // delete later
 }

 class MyPrivateInitStuff : public QObject
 {
 public:
     static MyPrivateInitStuff *initStuff(QObject *parent)
     {
         if (!p)
             p = new MyPrivateInitStuff(parent);
         return p;
     }

     ~MyPrivateInitStuff()
     {
         // cleanup goes here
     }

 private:
     MyPrivateInitStuff(QObject *parent)
         : QObject(parent)
     {
         // initialization goes here
     }

     MyPrivateInitStuff *p;
 };

 static inline QString tr(const char *sourceText,
                          const char *comment = 0);
 static inline QString trUtf8(const char *sourceText,
                              const char *comment = 0);

 class MyMfcView : public CView
 {
     Q_DECLARE_TR_FUNCTIONS(MyMfcView)

 public:
     MyMfcView();
     ...
 };