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Doc: Update QMetaType::metaObject() descriptions

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Change-Id: Iff93f8fe2cf701d56d072e2593c76d49a70fc183
Reviewed-by: Sze Howe Koh <szehowe.koh@gmail.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit e27ecb203538208157e3e0e710ae54ab8bd2a844)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Mike Trahearn 2022-08-29 17:18:06 +10:00 committed by Qt Cherry-pick Bot
parent cb61bea591
commit abaf1aa134
1 changed files with 11 additions and 9 deletions
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20
src/corelib/kernel/qmetatype.cpp
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@ -555,19 +555,21 @@ int QMetaType::idHelper() const
\fn constexpr const QMetaObject *QMetaType::metaObject() const
\since 5.5
return a QMetaObject relative to this type.
Returns a QMetaObject relative to this type.
If the type is a pointer type to a subclass of QObject, flags() contains
QMetaType::PointerToQObject and this function returns the corresponding QMetaObject. This can
be used to in combination with QMetaObject::construct to create QObject of this type.
QMetaType::PointerToQObject and this function returns the corresponding QMetaObject.
This can be used in combination with QMetaObject::newInstance() to create QObjects of this type.
If the type is a Q_GADGET, flags() contains QMetaType::IsGadget, and this function returns its
QMetaObject. This can be used to retrieve QMetaMethod and QMetaProperty and use them on a
pointer of this type. (given by QVariant::data for example)
If the type is a Q_GADGET, flags() contains QMetaType::IsGadget.
If the type is a pointer to a Q_GADGET, flags() contains QMetaType::PointerToGadget.
In both cases, this function returns its QMetaObject.
This can be used to retrieve QMetaMethod and QMetaProperty and use them on a
pointer of this type for example, as given by QVariant::data().
If the type is an enumeration, flags() contains QMetaType::IsEnumeration, and this function
returns the QMetaObject of the enclosing object if the enum was registered as a Q_ENUM or
\nullptr otherwise
If the type is an enumeration, flags() contains QMetaType::IsEnumeration.
In this case, this function returns the QMetaObject of the enclosing
object if the enum was registered as a Q_ENUM or \nullptr otherwise.
\sa QMetaType::flags()
*/