- Qt 6.12
- Qt GUI
- C++ Classes
- QAccessibleViewportInterface
- Qt 6.12.0 Reference Documentation

# QAccessibleViewportInterface Class

The QAccessibleViewportInterface class implements support for viewports. More...

Header: | `#include <QAccessibleViewportInterface>`
CMake: | `find_package(Qt6 REQUIRED COMPONENTS Gui)` `target_link_libraries(mytarget PRIVATE Qt6::Gui)`
qmake: | `QT += gui`
Since: | Qt 6.12
Status: | Technology preview

This class is in technology preview and is subject to change.

- List of all members, including inherited members
- QAccessibleViewportInterface is part of Accessibility Classes.

## Public Functions

virtual | ~QAccessibleViewportInterface()
virtual QSizeF | contentSize() const = 0
virtual bool | isIndexed() const = 0
virtual QPointF | position() const = 0
virtual void | setPosition(const QPointF &position) = 0
virtual QSizeF | viewportSize() const = 0

## Detailed Description

This interface should be implemented by accessible objects that allow an 2-dimensional or indexed viewports (e.g. by scrolling). For example lists or flickable views.

## Member Function Documentation

### `[virtual noexcept]` QAccessibleViewportInterface::~QAccessibleViewportInterface()

Destroys the QAccessibleViewportInterface.

### `[pure virtual]` QSizeF QAccessibleViewportInterface::contentSize() const

Returns the total size of the content in absolute values. For non-indexed viewports this will return the absolute size of the underlying content, for indexed viewports the count of rows and columns is returned.

### `[pure virtual]` bool QAccessibleViewportInterface::isIndexed() const

Returns true if the underlying content is indexed (e.g. a list of items).

### `[pure virtual]` QPointF QAccessibleViewportInterface::position() const

Returns the current position within the viewport in normalized values.

See also setPosition().

### `[pure virtual]` void QAccessibleViewportInterface::setPosition(const QPointF &position)

Sets the viewport's position to the given position defined in normalized values.

See also position().

### `[pure virtual]` QSizeF QAccessibleViewportInterface::viewportSize() const

Returns the currently visible portion of the content in normalized values.