API reference - Class QMetaProperty

Notation used in Ruby API documentation

Module: QtCore

Description: Binding of QMetaProperty

Public constructors

new QMetaPropertynewConstructor QMetaProperty::QMetaProperty()

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.
voidassign(const QMetaProperty other)Assigns another object to self
[const]new QMetaProperty ptrdupCreates a copy of self
[const]const QMetaObject ptrenclosingMetaObjectMethod const QMetaObject *QMetaProperty::enclosingMetaObject()
[const]QMetaEnumenumeratorMethod QMetaEnum QMetaProperty::enumerator()
[const]boolhasNotifySignalMethod bool QMetaProperty::hasNotifySignal()
[const]boolhasStdCppSetMethod bool QMetaProperty::hasStdCppSet()
[const]boolisConstant?Method bool QMetaProperty::isConstant()
[const]boolisDesignable?(const QObject ptr obj = 0)Method bool QMetaProperty::isDesignable(const QObject *obj)
[const]boolisEditable?(const QObject ptr obj = 0)Method bool QMetaProperty::isEditable(const QObject *obj)
[const]boolisEnumType?Method bool QMetaProperty::isEnumType()
[const]boolisFinal?Method bool QMetaProperty::isFinal()
[const]boolisFlagType?Method bool QMetaProperty::isFlagType()
[const]boolisReadable?Method bool QMetaProperty::isReadable()
[const]boolisResettable?Method bool QMetaProperty::isResettable()
[const]boolisScriptable?(const QObject ptr obj = 0)Method bool QMetaProperty::isScriptable(const QObject *obj)
[const]boolisStored?(const QObject ptr obj = 0)Method bool QMetaProperty::isStored(const QObject *obj)
[const]boolisUser?(const QObject ptr obj = 0)Method bool QMetaProperty::isUser(const QObject *obj)
[const]boolisValid?Method bool QMetaProperty::isValid()
[const]boolisWritable?Method bool QMetaProperty::isWritable()
[const]stringnameMethod const char *QMetaProperty::name()
[const]QMetaMethodnotifySignalMethod QMetaMethod QMetaProperty::notifySignal()
[const]intnotifySignalIndexMethod int QMetaProperty::notifySignalIndex()
[const]intpropertyIndexMethod int QMetaProperty::propertyIndex()
[const]variantread(const QObject ptr obj)Method QVariant QMetaProperty::read(const QObject *obj)
[const]variantreadOnGadget(void * gadget)Method QVariant QMetaProperty::readOnGadget(const void *gadget)
[const]boolreset(QObject ptr obj)Method bool QMetaProperty::reset(QObject *obj)
[const]boolresetOnGadget(void * gadget)Method bool QMetaProperty::resetOnGadget(void *gadget)
[const]intrevisionMethod int QMetaProperty::revision()
[const]QVariant_TypetypeMethod QVariant::Type QMetaProperty::type()
[const]stringtypeNameMethod const char *QMetaProperty::typeName()
[const]intuserTypeMethod int QMetaProperty::userType()
[const]boolwrite(QObject ptr obj,
variant value)
Method bool QMetaProperty::write(QObject *obj, const QVariant &value)
[const]boolwriteOnGadget(void * gadget,
variant value)
Method bool QMetaProperty::writeOnGadget(void *gadget, const QVariant &value)

Deprecated methods (protected, public, static, non-static and constructors)

voidcreateUse of this method is deprecated. Use _create instead
voiddestroyUse of this method is deprecated. Use _destroy instead
[const]booldestroyed?Use of this method is deprecated. Use _destroyed? instead
[const]boolis_const_object?Use of this method is deprecated. Use _is_const_object? instead

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.

assign

Signature: void assign (const QMetaProperty other)

Description: Assigns another object to self

create

Signature: void create

Description: Ensures the C++ object is created

Use of this method is deprecated. Use _create instead

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

Use of this method is deprecated. Use _destroy instead

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

Use of this method is deprecated. Use _destroyed? instead

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.

dup

Signature: [const] new QMetaProperty ptr dup

Description: Creates a copy of self

Python specific notes:
This method also implements '__copy__' and '__deepcopy__'.

enclosingMetaObject

Signature: [const] const QMetaObject ptr enclosingMetaObject

Description: Method const QMetaObject *QMetaProperty::enclosingMetaObject()

enumerator

Signature: [const] QMetaEnum enumerator

Description: Method QMetaEnum QMetaProperty::enumerator()

hasNotifySignal

Signature: [const] bool hasNotifySignal

Description: Method bool QMetaProperty::hasNotifySignal()

hasStdCppSet

Signature: [const] bool hasStdCppSet

Description: Method bool QMetaProperty::hasStdCppSet()

isConstant?

Signature: [const] bool isConstant?

Description: Method bool QMetaProperty::isConstant()

isDesignable?

Signature: [const] bool isDesignable? (const QObject ptr obj = 0)

Description: Method bool QMetaProperty::isDesignable(const QObject *obj)

isEditable?

Signature: [const] bool isEditable? (const QObject ptr obj = 0)

Description: Method bool QMetaProperty::isEditable(const QObject *obj)

isEnumType?

Signature: [const] bool isEnumType?

Description: Method bool QMetaProperty::isEnumType()

isFinal?

Signature: [const] bool isFinal?

Description: Method bool QMetaProperty::isFinal()

isFlagType?

Signature: [const] bool isFlagType?

Description: Method bool QMetaProperty::isFlagType()

isReadable?

Signature: [const] bool isReadable?

Description: Method bool QMetaProperty::isReadable()

isResettable?

Signature: [const] bool isResettable?

Description: Method bool QMetaProperty::isResettable()

isScriptable?

Signature: [const] bool isScriptable? (const QObject ptr obj = 0)

Description: Method bool QMetaProperty::isScriptable(const QObject *obj)

isStored?

Signature: [const] bool isStored? (const QObject ptr obj = 0)

Description: Method bool QMetaProperty::isStored(const QObject *obj)

isUser?

Signature: [const] bool isUser? (const QObject ptr obj = 0)

Description: Method bool QMetaProperty::isUser(const QObject *obj)

isValid?

Signature: [const] bool isValid?

Description: Method bool QMetaProperty::isValid()

isWritable?

Signature: [const] bool isWritable?

Description: Method bool QMetaProperty::isWritable()

is_const_object?

Signature: [const] bool is_const_object?

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

Use of this method is deprecated. Use _is_const_object? instead

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

name

Signature: [const] string name

Description: Method const char *QMetaProperty::name()

new

Signature: [static] new QMetaProperty new

Description: Constructor QMetaProperty::QMetaProperty()

This method creates an object of class QMetaProperty.

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

notifySignal

Signature: [const] QMetaMethod notifySignal

Description: Method QMetaMethod QMetaProperty::notifySignal()

notifySignalIndex

Signature: [const] int notifySignalIndex

Description: Method int QMetaProperty::notifySignalIndex()

propertyIndex

Signature: [const] int propertyIndex

Description: Method int QMetaProperty::propertyIndex()

read

Signature: [const] variant read (const QObject ptr obj)

Description: Method QVariant QMetaProperty::read(const QObject *obj)

readOnGadget

Signature: [const] variant readOnGadget (void * gadget)

Description: Method QVariant QMetaProperty::readOnGadget(const void *gadget)

reset

Signature: [const] bool reset (QObject ptr obj)

Description: Method bool QMetaProperty::reset(QObject *obj)

resetOnGadget

Signature: [const] bool resetOnGadget (void * gadget)

Description: Method bool QMetaProperty::resetOnGadget(void *gadget)

revision

Signature: [const] int revision

Description: Method int QMetaProperty::revision()

type

Signature: [const] QVariant_Type type

Description: Method QVariant::Type QMetaProperty::type()

typeName

Signature: [const] string typeName

Description: Method const char *QMetaProperty::typeName()

userType

Signature: [const] int userType

Description: Method int QMetaProperty::userType()

write

Signature: [const] bool write (QObject ptr obj, variant value)

Description: Method bool QMetaProperty::write(QObject *obj, const QVariant &value)

writeOnGadget

Signature: [const] bool writeOnGadget (void * gadget, variant value)

Description: Method bool QMetaProperty::writeOnGadget(void *gadget, const QVariant &value)