QAudioRoleControl Class
The QAudioRoleControl class provides control over the audio role of a media object. 更多...
| 头文件: | #include <QAudioRoleControl> |
| qmake: | QT += multimedia |
| 开始支持版本: | Qt 5.6 |
| 基类: | QMediaControl |
公有函数
| virtual | ~QAudioRoleControl() |
| virtual QAudio::Role | audioRole() const = 0 |
| virtual void | setAudioRole(QAudio::Role role) = 0 |
| virtual QList<QAudio::Role> | supportedAudioRoles() const = 0 |
- 32 个公有函数继承自 QObject
信号
| void | audioRoleChanged(QAudio::Role role) |
- 2 个信号继承自 QObject
受保护的函数
| QAudioRoleControl(QObject *parent = Q_NULLPTR) |
- 9 个受保护的函数继承自 QObject
Macros
其他继承的成员
详细描述
The QAudioRoleControl class provides control over the audio role of a media object.
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.
参见 QMediaService::requestControl() and QMediaPlayer.
成员函数
[protected] QAudioRoleControl::QAudioRoleControl(QObject *parent = Q_NULLPTR)
Construct a QAudioRoleControl with the given parent.
[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.
参见 setAudioRole().
[signal] void QAudioRoleControl::audioRoleChanged(QAudio::Role role)
Signal emitted when the audio role has changed.
[pure virtual] void QAudioRoleControl::setAudioRole(QAudio::Role role)
Sets the audio role of the media played by the media service.
参见 audioRole().
[pure virtual] QList<QAudio::Role> QAudioRoleControl::supportedAudioRoles() const
Returns a list of audio roles that the media service supports.
宏
QAudioRoleControl_iid
org.qt-project.qt.audiorolecontrol/5.6
Defines the interface name of the QAudioRoleControl class.