QMetaDataReaderControl Class

Member Function Documentation

QMetaDataReaderControl::QMetaDataReaderControl(QObject * parent = 0) [protected]

Construct a QMetaDataReaderControl with parent. This class is meant as a base class for service specific meta data providers so this constructor is protected.

QMetaDataReaderControl::~QMetaDataReaderControl()

Destroy the meta-data object.

QStringList QMetaDataReaderControl::availableMetaData() const [pure virtual]

Returns a list of keys there is meta-data available for.

bool QMetaDataReaderControl::isMetaDataAvailable() const [pure virtual]

Identifies if meta-data is available from a media service.

Returns true if the meta-data is available and false otherwise.

QVariant QMetaDataReaderControl::metaData(const QString & key) const [pure virtual]

Returns the meta-data for the given key.

void QMetaDataReaderControl::metaDataAvailableChanged(bool available) [signal]

Signal the availability of meta-data has changed, available will be true if the multimedia object has meta-data.

void QMetaDataReaderControl::metaDataChanged() [signal]

Signal the changes of meta-data.

If multiple meta-data elements are changed, metaDataChanged(const QString &key, const QVariant &value) signal is emitted for each of them with metaDataChanged() changed emitted once.

void QMetaDataReaderControl::metaDataChanged(const QString & key, const QVariant & value) [signal]

Signal the changes of one meta-data element value with the given key.