QMediaAvailabilityControl Class

The QMediaAvailabilityControl class supplies a control for reporting availability of a service. More...

Header:	#include <QMediaAvailabilityControl>
qmake:	QT += multimedia
Inherits:	QMediaControl

• List of all members, including inherited members
• Obsolete members

Public Functions

virtual	~QMediaAvailabilityControl()
virtual QMultimedia::AvailabilityStatus	availability() const = 0

• 31 public functions inherited from QObject

Signals

void	availabilityChanged(QMultimedia::AvailabilityStatus availability)

• 2 signals inherited from QObject

Static Public Members

const QMetaObject

staticMetaObject

• 9 static public members inherited from QObject

Protected Functions

QMediaAvailabilityControl(QObject *parent = nullptr)

• 9 protected functions inherited from QObject

Macros

QMediaAvailabilityControl_iid

Additional Inherited Members

• 1 property inherited from QObject
• 1 public slot inherited from QObject

Detailed Description

The QMediaAvailabilityControl class supplies a control for reporting availability of a service.

An instance of QMediaObject (or its derived classes) can report any changes in availability via this control.

The interface name of QMediaAvailabilityControl is org.qt-project.qt.mediaavailabilitycontrol/5.0 as defined in QMediaAvailabilityControl_iid.

See also QMediaService::requestControl() and QMediaObject.

Member Function Documentation

[protected] QMediaAvailabilityControl::QMediaAvailabilityControl(QObject *parent = nullptr)

Constructs an availability control object with parent.

[virtual] QMediaAvailabilityControl::~QMediaAvailabilityControl()

Destruct the availability control object.

[pure virtual] QMultimedia::AvailabilityStatus QMediaAvailabilityControl::availability() const

Returns the current availability of this instance of the media service. If the availability changes at run time (for example, some other media client takes all media resources) the availabilityChanges() signal should be emitted.

[signal] void QMediaAvailabilityControl::availabilityChanged(QMultimedia::AvailabilityStatus availability)

Signal emitted when the current availability value changed.