QAudioRoleControl Class

The QAudioRoleControl class provides control over the audio role of a media object. More...

Header:	#include <QAudioRoleControl>
qmake:	QT += multimedia
Since:	Qt 5.6
Inherits:	QMediaControl

This class was introduced in Qt 5.6.

• List of all members, including inherited members

Public Functions

virtual	~QAudioRoleControl()
virtual QAudio::Role	audioRole() const = 0
virtual void	setAudioRole(QAudio::Role role) = 0
virtual QList<QAudio::Role>	supportedAudioRoles() const = 0

Signals

void	audioRoleChanged(QAudio::Role role)

Protected Functions

QAudioRoleControl(QObject *parent = nullptr)

Macros

QAudioRoleControl_iid

Detailed Description

If a QMediaService supports audio roles it will implement QAudioRoleControl.

The functionality provided by this control is exposed to application code through the QMediaPlayer class.

The interface name of QAudioRoleControl is org.qt-project.qt.audiorolecontrol/5.6 as defined in QAudioRoleControl_iid.

See also QMediaService::requestControl() and QMediaPlayer.

Member Function Documentation

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

Construct a QAudioRoleControl with the given parent.

[signal] void QAudioRoleControl::audioRoleChanged(QAudio::Role role)

Signal emitted when the audio role has changed.

[virtual] QAudioRoleControl::~QAudioRoleControl()

Destroys the audio role control.

[pure virtual] QAudio::Role QAudioRoleControl::audioRole() const

Returns the audio role of the media played by the media service.

See also setAudioRole().

[pure virtual] void QAudioRoleControl::setAudioRole(QAudio::Role role)

Sets the audio role of the media played by the media service.

See also audioRole().

[pure virtual] QList<QAudio::Role> QAudioRoleControl::supportedAudioRoles() const

Returns a list of audio roles that the media service supports.