QChildEvent Class Reference
[QtCore module]
The QChildEvent class contains event parameters for child object events. More...
#include <QChildEvent> Inherits QEvent.
Public Functions
- 6 public functions inherited from QEvent
Additional Inherited Members
- 1 property inherited from QEvent
- 1 static public member inherited from QEvent
Detailed Description
The QChildEvent class contains event parameters for child object events.
Child events are sent immediately to objects when children are added or removed.
In both cases you can only rely on the child being a QObject (or, if QObject::isWidgetType() returns true, a QWidget). This is because in the QEvent::ChildAdded case the child is not yet fully constructed; in the QEvent::ChildRemoved case it might have already been destructed.
The handler for these events is QObject::childEvent().
Member Function Documentation
QChildEvent::QChildEvent ( Type type, QObject * child )
Constructs a child event object of a particular type for the child.
type can be QEvent::ChildAdded, QEvent::ChildRemoved, QEvent::ChildPolished, or QEvent::ChildRemoved.
See also child().
bool QChildEvent::added () const
Returns true if type() is QEvent::ChildAdded; otherwise returns false.
QObject * QChildEvent::child () const
Returns the child object that was added or removed.
bool QChildEvent::polished () const
Returns true if type() is QEvent::ChildPolished; otherwise returns false.
bool QChildEvent::removed () const
Returns true if type() is QEvent::ChildRemoved; otherwise returns false.
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