QAccessibleEvent Class

The QAccessibleEvent class is the base class for accessibility notifications. More...

Header: #include <QAccessibleEvent>
CMake: find_package(Qt6 REQUIRED COMPONENTS Gui)
target_link_libraries(mytarget PRIVATE Qt6::Gui)
qmake: QT += gui
Inherited By:

QAccessibleStateChangeEvent, QAccessibleTableModelChangeEvent, QAccessibleTextCursorEvent, and QAccessibleValueChangeEvent

Public Functions

QAccessibleEvent(QObject *object, QAccessible::Event type)
QAccessibleEvent(QAccessibleInterface *interface, QAccessible::Event type)
virtual ~QAccessibleEvent()
virtual QAccessibleInterface *accessibleInterface() const
int child() const
QObject *object() const
void setChild(int child)
QAccessible::Event type() const

Detailed Description

This class is used with QAccessible::updateAccessibility().

The event type is one of the values of QAccessible::Event. There are a number of subclasses that should be used to provide more details about the event.

For example to notify about a focus change when re-implementing QWidget::setFocus, the event could be used as follows:

void MyWidget::setFocus(Qt::FocusReason reason)
{
    // handle custom focus setting...
    QAccessibleEvent event(f, QAccessible::Focus);
    QAccessible::updateAccessibility(&event);
}

To enable in process screen readers, all events must be sent after the change has happened.

Member Function Documentation

QAccessibleEvent::QAccessibleEvent(QObject *object, QAccessible::Event type)

Constructs a QAccessibleEvent to notify that object has changed. The event type describes what changed.

QAccessibleEvent::QAccessibleEvent(QAccessibleInterface *interface, QAccessible::Event type)

Constructs a QAccessibleEvent to notify that interface has changed. The event type describes what changed. Use this function if you already have a QAccessibleInterface or no QObject, otherwise consider the overload taking a QObject parameter as it might be cheaper.

[virtual] QAccessibleEvent::~QAccessibleEvent()

Destroys the event.

[virtual] QAccessibleInterface *QAccessibleEvent::accessibleInterface() const

Returns the QAccessibleInterface associated with the event.

int QAccessibleEvent::child() const

Returns the child index.

See also setChild().

QObject *QAccessibleEvent::object() const

Returns the event object.

void QAccessibleEvent::setChild(int child)

Sets the child index to child.

See also child().

QAccessible::Event QAccessibleEvent::type() const

Returns the event type.

© 2023 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.