QMetaDataWriterControl Class
The QMetaDataWriterControl class provides write access to the meta-data of a QMediaService's media. More...
| Header: | #include <QMetaDataWriterControl> |
| qmake: | QT += multimedia |
| Inherits: | QMediaControl |
Public Functions
| virtual | ~QMetaDataWriterControl() |
- 30 public functions inherited from QObject
Protected Functions
| QMetaDataWriterControl(QObject *parent = nullptr) |
- 9 protected functions inherited from QObject
Related Non-Members
| typedef | QObjectList |
| QList<T> | qFindChildren(const QObject *obj, const QRegExp ®Exp) |
| T | qobject_cast(QObject *object) |
| T | qobject_cast(const QObject *object) |
Macros
| QMetaDataWriterControl_iid | |
| QT_NO_NARROWING_CONVERSIONS_IN_CONNECT | |
| Q_CLASSINFO(Name, Value) | |
| Q_DISABLE_COPY(Class) | |
| Q_DISABLE_COPY_MOVE(Class) | |
| Q_DISABLE_MOVE(Class) | |
| Q_EMIT | |
| Q_ENUM(...) | |
| Q_ENUM_NS(...) | |
| Q_FLAG(...) | |
| Q_FLAG_NS(...) | |
| Q_GADGET | |
| Q_INTERFACES(...) | |
| Q_INVOKABLE | |
| Q_MEDIA_DECLARE_CONTROL(Class, IId) | |
| Q_NAMESPACE | |
| Q_OBJECT | |
| Q_PROPERTY(...) | |
| Q_REVISION | |
| Q_SET_OBJECT_NAME(Object) | |
| Q_SIGNAL | |
| Q_SIGNALS | |
| Q_SLOT | |
| Q_SLOTS |
Additional Inherited Members
- 1 property inherited from QObject
- 1 public slot inherited from QObject
- 2 signals inherited from QObject
- 9 static public members inherited from QObject
Detailed Description
If a QMediaService can provide write access to the meta-data of its current media it will implement QMetaDataWriterControl. This control provides functions for both retrieving and setting meta-data values. Meta-data may be addressed by the keys defined in the QMediaMetaData namespace.
The functionality provided by this control is exposed to application code by the meta-data members of QMediaObject, and so meta-data access is potentially available in any of the media object classes. Any media service may implement QMetaDataControl.
The interface name of QMetaDataWriterControl is org.qt-project.qt.metadatawritercontrol/5.0 as defined in QMetaDataWriterControl_iid.
See also QMediaService::requestControl() and QMediaObject.
Member Function Documentation
[protected] QMetaDataWriterControl::QMetaDataWriterControl(QObject *parent = nullptr)
Construct a QMetaDataWriterControl with parent. This class is meant as a base class for service specific meta data providers so this constructor is protected.
[virtual] QMetaDataWriterControl::~QMetaDataWriterControl()
Destroy the meta-data writer control.
Macro Documentation
QMetaDataWriterControl::QMetaDataWriterControl_iid
org.qt-project.qt.metadatawritercontrol/5.0
Defines the interface name of the QMetaDataWriterControl class.