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• 公共函数
• 信号
• 静态公共成员
• 保护函数
• 宏
• 详细描述

QCustomAudioRoleControl Class

The QCustomAudioRoleControl class provides control over the audio role of a media object. 更多...

头：	#include <QCustomAudioRoleControl>
qmake:	QT += multimedia
Since:	Qt 5.11
继承：	QMediaControl

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公共函数

virtual	~QCustomAudioRoleControl ()
virtual QString	customAudioRole () const = 0
virtual void	setCustomAudioRole (const QString & role ) = 0
virtual QStringList	supportedCustomAudioRoles () const = 0

• 31 公共函数继承自 QObject

信号

void	customAudioRoleChanged (const QString & role )

• 2 信号继承自 QObject

静态公共成员

const QMetaObject

staticMetaObject

• 9 静态公共成员继承自 QObject

保护函数

QCustomAudioRoleControl (QObject * parent = nullptr)

• 9 保护函数继承自 QObject

宏

QCustomAudioRoleControl_iid

额外继承成员

• 1 特性继承自 QObject
• 1 公共槽继承自 QObject

详细描述

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

若 QMediaService supports audio roles it may implement QCustomAudioRoleControl in order to provide access to roles unknown to Qt.

The functionality provided by this control is exposed to application code through the QMediaPlayer 类。

接口名称对于 QCustomAudioRoleControl is org.qt-project.qt.customaudiorolecontrol/5.11 作为定义在 QCustomAudioRoleControl_iid .

另请参阅 QMediaService::requestControl () 和 QMediaPlayer .

成员函数文档编制

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

构造 QCustomAudioRoleControl 采用给定 parent .

[虚拟] QCustomAudioRoleControl:: ~QCustomAudioRoleControl ()

Destroys the audio role control.

[pure virtual] QString QCustomAudioRoleControl:: customAudioRole () const

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

另请参阅 setCustomAudioRole ().

[signal] void QCustomAudioRoleControl:: customAudioRoleChanged (const QString & role )

Signal emitted when the audio role 已改变。

[pure virtual] void QCustomAudioRoleControl:: setCustomAudioRole (const QString & role )

设置音频 role of the media played by the media service.

另请参阅 customAudioRole ().

[pure virtual] QStringList QCustomAudioRoleControl:: supportedCustomAudioRoles () const

Returns a list of custom audio roles that the media service supports. An empty list may indicate that the supported custom audio roles aren't known. The list may not be complete.

宏文档编制

QCustomAudioRoleControl_iid

org.qt-project.qt.customaudiorolecontrol/5.11

定义接口名为 QCustomAudioRoleControl 类。