API reference - Class QMetaDataReaderControl

Notation used in Ruby API documentation

Module: QtMultimedia

Description: Binding of QMetaDataReaderControl

Class hierarchy: QMetaDataReaderControl » QMediaControl » QObject

Public constructors

new QMetaDataReaderControlnewConstructor QMetaDataReaderControl::QMetaDataReaderControl()

Public methods

void_createEnsures the C++ object is created
void_destroyExplicitly destroys the object
[const]bool_destroyed?Returns a value indicating whether the object was already destroyed
[const]bool_is_const_object?Returns a value indicating whether the reference is a const reference
void_manageMarks the object as managed by the script side.
void_unmanageMarks the object as no longer owned by the script side.
[const]string[]availableMetaDataVirtual method QStringList QMetaDataReaderControl::availableMetaData()
boolevent(QEvent ptr arg1)Virtual method bool QMetaDataReaderControl::event(QEvent *)
booleventFilter(QObject ptr arg1,
QEvent ptr arg2)
Virtual method bool QMetaDataReaderControl::eventFilter(QObject *, QEvent *)
[const]boolisMetaDataAvailableVirtual method bool QMetaDataReaderControl::isMetaDataAvailable()
[const]boolisMetaDataAvailable?Method bool QMetaDataReaderControl::isMetaDataAvailable()
[const]variantmetaData(string key)Virtual method QVariant QMetaDataReaderControl::metaData(const QString &key)
voidmetaDataAvailableChanged(bool available)Method void QMetaDataReaderControl::metaDataAvailableChanged(bool available)
voidmetaDataChangedMethod void QMetaDataReaderControl::metaDataChanged()
voidmetaDataChanged_kv(string key,
variant value)
Method void QMetaDataReaderControl::metaDataChanged(const QString &key, const QVariant &value)

Public static methods and constants

QMetaObjectstaticMetaObjectObtains the static MetaObject for this class.
stringtr(string s,
string c = nullptr,
int n = -1)
Static method QString QMetaDataReaderControl::tr(const char *s, const char *c, int n)
stringtrUtf8(string s,
string c = nullptr,
int n = -1)
Static method QString QMetaDataReaderControl::trUtf8(const char *s, const char *c, int n)

Protected methods (static, non-static and constructors)

voidchildEvent(QChildEvent ptr arg1)Virtual method void QMetaDataReaderControl::childEvent(QChildEvent *)
voidcustomEvent(QEvent ptr arg1)Virtual method void QMetaDataReaderControl::customEvent(QEvent *)
voiddisconnectNotify(const QMetaMethod signal)Virtual method void QMetaDataReaderControl::disconnectNotify(const QMetaMethod &signal)
[const]boolisSignalConnected(const QMetaMethod signal)Method bool QMetaDataReaderControl::isSignalConnected(const QMetaMethod &signal)
[const]intreceivers(string signal)Method int QMetaDataReaderControl::receivers(const char *signal)
[const]QObject ptrsenderMethod QObject *QMetaDataReaderControl::sender()
[const]intsenderSignalIndexMethod int QMetaDataReaderControl::senderSignalIndex()
voidtimerEvent(QTimerEvent ptr arg1)Virtual method void QMetaDataReaderControl::timerEvent(QTimerEvent *)

Detailed description

_create

Signature: void _create

Description: Ensures the C++ object is created

Use this method to ensure the C++ object is created, for example to ensure that resources are allocated. Usually C++ objects are created on demand and not necessarily when the script object is created.

_destroy

Signature: void _destroy

Description: Explicitly destroys the object

Explicitly destroys the object on C++ side if it was owned by the script interpreter. Subsequent access to this object will throw an exception. If the object is not owned by the script, this method will do nothing.

_destroyed?

Signature: [const] bool _destroyed?

Description: Returns a value indicating whether the object was already destroyed

This method returns true, if the object was destroyed, either explicitly or by the C++ side. The latter may happen, if the object is owned by a C++ object which got destroyed itself.

_is_const_object?

Signature: [const] bool _is_const_object?

Description: Returns a value indicating whether the reference is a const reference

This method returns true, if self is a const reference. In that case, only const methods may be called on self.

_manage

Signature: void _manage

Description: Marks the object as managed by the script side.

After calling this method on an object, the script side will be responsible for the management of the object. This method may be called if an object is returned from a C++ function and the object is known not to be owned by any C++ instance. If necessary, the script side may delete the object if the script's reference is no longer required.

Usually it's not required to call this method. It has been introduced in version 0.24.

_unmanage

Signature: void _unmanage

Description: Marks the object as no longer owned by the script side.

Calling this method will make this object no longer owned by the script's memory management. Instead, the object must be managed in some other way. Usually this method may be called if it is known that some C++ object holds and manages this object. Technically speaking, this method will turn the script's reference into a weak reference. After the script engine decides to delete the reference, the object itself will still exist. If the object is not managed otherwise, memory leaks will occur.

Usually it's not required to call this method. It has been introduced in version 0.24.

availableMetaData

Signature: [const] string[] availableMetaData

Description: Virtual method QStringList QMetaDataReaderControl::availableMetaData()

This method can be reimplemented in a derived class.

childEvent

Signature: void childEvent (QChildEvent ptr arg1)

Description: Virtual method void QMetaDataReaderControl::childEvent(QChildEvent *)

This method can be reimplemented in a derived class.

customEvent

Signature: void customEvent (QEvent ptr arg1)

Description: Virtual method void QMetaDataReaderControl::customEvent(QEvent *)

This method can be reimplemented in a derived class.

disconnectNotify

Signature: void disconnectNotify (const QMetaMethod signal)

Description: Virtual method void QMetaDataReaderControl::disconnectNotify(const QMetaMethod &signal)

This method can be reimplemented in a derived class.

event

Signature: bool event (QEvent ptr arg1)

Description: Virtual method bool QMetaDataReaderControl::event(QEvent *)

This method can be reimplemented in a derived class.

eventFilter

Signature: bool eventFilter (QObject ptr arg1, QEvent ptr arg2)

Description: Virtual method bool QMetaDataReaderControl::eventFilter(QObject *, QEvent *)

This method can be reimplemented in a derived class.

isMetaDataAvailable

Signature: [const] bool isMetaDataAvailable

Description: Virtual method bool QMetaDataReaderControl::isMetaDataAvailable()

This method can be reimplemented in a derived class.

isMetaDataAvailable?

Signature: [const] bool isMetaDataAvailable?

Description: Method bool QMetaDataReaderControl::isMetaDataAvailable()

isSignalConnected

Signature: [const] bool isSignalConnected (const QMetaMethod signal)

Description: Method bool QMetaDataReaderControl::isSignalConnected(const QMetaMethod &signal)

This method is protected and can only be called from inside a derived class.

metaData

Signature: [const] variant metaData (string key)

Description: Virtual method QVariant QMetaDataReaderControl::metaData(const QString &key)

This method can be reimplemented in a derived class.

metaDataAvailableChanged

Signature: void metaDataAvailableChanged (bool available)

Description: Method void QMetaDataReaderControl::metaDataAvailableChanged(bool available)

metaDataChanged

Signature: void metaDataChanged

Description: Method void QMetaDataReaderControl::metaDataChanged()

metaDataChanged_kv

Signature: void metaDataChanged_kv (string key, variant value)

Description: Method void QMetaDataReaderControl::metaDataChanged(const QString &key, const QVariant &value)

new

Signature: [static] new QMetaDataReaderControl new

Description: Constructor QMetaDataReaderControl::QMetaDataReaderControl()

This method creates an object of class QMetaDataReaderControl.

Python specific notes:
This method is the default initializer of the object.

receivers

Signature: [const] int receivers (string signal)

Description: Method int QMetaDataReaderControl::receivers(const char *signal)

This method is protected and can only be called from inside a derived class.

sender

Signature: [const] QObject ptr sender

Description: Method QObject *QMetaDataReaderControl::sender()

This method is protected and can only be called from inside a derived class.

senderSignalIndex

Signature: [const] int senderSignalIndex

Description: Method int QMetaDataReaderControl::senderSignalIndex()

This method is protected and can only be called from inside a derived class.

staticMetaObject

Signature: [static] QMetaObject staticMetaObject

Description: Obtains the static MetaObject for this class.

timerEvent

Signature: void timerEvent (QTimerEvent ptr arg1)

Description: Virtual method void QMetaDataReaderControl::timerEvent(QTimerEvent *)

This method can be reimplemented in a derived class.

tr

Signature: [static] string tr (string s, string c = nullptr, int n = -1)

Description: Static method QString QMetaDataReaderControl::tr(const char *s, const char *c, int n)

This method is static and can be called without an instance.

trUtf8

Signature: [static] string trUtf8 (string s, string c = nullptr, int n = -1)

Description: Static method QString QMetaDataReaderControl::trUtf8(const char *s, const char *c, int n)

This method is static and can be called without an instance.