qchildevent.3qt man page
QChildEvent — Event parameters for child object events
QChildEvent ( Type type, QObject * child )
QObject * child () const
bool inserted () const
bool removed () const
The QChildEvent class contains event parameters for child object events.
Child events are sent to objects when children are inserted or removed.
A ChildRemoved event is sent immediately, but a ChildInserted event is posted (with QApplication::postEvent()).
Note that if a child is removed immediately after it is inserted, the ChildInserted event may be suppressed, but the ChildRemoved event will always be sent. In this case there will be a ChildRemoved event without a corresponding ChildInserted event.
The handler for these events is QObject::childEvent().
See also Event Classes.
Member Function Documentation
QChildEvent::QChildEvent ( Type type, QObject * child )
Constructs a child event object. The child is the object that is to be removed or inserted.
The type parameter must be either QEvent::ChildInserted or QEvent::ChildRemoved.
QObject * QChildEvent::child () const
Returns the child widget that was inserted or removed.
bool QChildEvent::inserted () const
Returns TRUE if the widget received a new child; otherwise returns FALSE.
bool QChildEvent::removed () const
Returns TRUE if the object lost a child; otherwise returns FALSE.
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