內容

• 公共函數
• 信號
• 靜態公共成員
• 保護函數
• 宏
• 詳細描述

QCustomAudioRoleControl Class

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

頭：	#include <QCustomAudioRoleControl>
qmake:	QT += multimedia
Since:	Qt 5.11
繼承：	QMediaControl

• 所有成員列錶，包括繼承成員
• 過時成員

公共函數

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

• 31 公共函數繼承自 QObject

信號

void	customAudioRoleChanged (const QString & role )

• 2 信號繼承自 QObject

靜態公共成員

const QMetaObject

staticMetaObject

• 9 靜態公共成員繼承自 QObject

保護函數

QCustomAudioRoleControl (QObject * parent = nullptr)

• 9 保護函數繼承自 QObject

宏

QCustomAudioRoleControl_iid

額外繼承成員

• 1 特性繼承自 QObject
• 1 公共槽繼承自 QObject

詳細描述

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 類。

接口名稱對於 QCustomAudioRoleControl is org.qt-project.qt.customaudiorolecontrol/5.11 作為定義在 QCustomAudioRoleControl_iid .

另請參閱 QMediaService::requestControl () 和 QMediaPlayer .

成員函數文檔編製

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

構造 QCustomAudioRoleControl 采用給定 parent .

[虛擬] 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.

另請參閱 setCustomAudioRole ().

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

Signal emitted when the audio role 已改變。

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

設置音頻 role of the media played by the media service.

另請參閱 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.

宏文檔編製

QCustomAudioRoleControl_iid

org.qt-project.qt.customaudiorolecontrol/5.11

定義接口名為 QCustomAudioRoleControl 類。