QAxObject Class

QAxObject 类提供 QObject that wraps a COM object. 更多...

Header: #include <QAxObject>
qmake: QT += axcontainer
继承: QObject and QAxBase
继承者:

QAxScriptEngine

公共函数

QAxObject (QObject * parent = nullptr)
QAxObject (const QString & c , QObject * parent = nullptr)
QAxObject (IUnknown * iface , QObject * parent = nullptr)
virtual ~QAxObject () override
bool doVerb (const QString & verb )

静态公共成员

const QMetaObject staticMetaObject

重实现保护函数

virtual void connectNotify (const QMetaMethod & signal ) override

额外继承成员

详细描述

QAxObject 类提供 QObject that wraps a COM object.

A QAxObject can be instantiated as an empty object, with the name of the COM object it should wrap, or with a pointer to the IUnknown that represents an existing COM object. If the COM object implements the IDispatch interface, the properties, methods and events of that object become available as Qt properties, slots and signals. The base class, QAxBase , provides an API to access the COM object directly through the IUnknown pointer.

QAxObject QObject and can be used as such, e.g. it can be organized in an object hierarchy, receive events and connect to signals and slots.

QAxObject also inherits most of its ActiveX-related functionality from QAxBase , notably dynamicCall () 和 querySubObject ().

警告: You can subclass QAxObject , but you cannot use the Q_OBJECT macro in the subclass (the generated moc-file will not compile), so you cannot add further signals, slots or properties. This limitation is due to the metaobject information generated in runtime. To work around this problem, aggregate the QAxObject as a member of the QObject subclass.

另请参阅 QAxBase , QAxWidget , QAxScript ,和 ActiveQt 框架 .

成员函数文档编制

QAxObject:: QAxObject ( QObject * parent = nullptr)

Creates an empty COM object and propagates parent QObject constructor. To initialize the object, call setControl .

QAxObject:: QAxObject (const QString & c , QObject * parent = nullptr)

创建 QAxObject that wraps the COM object c . parent is propagated to the QObject 构造函数。

另请参阅 setControl ().

QAxObject:: QAxObject ( IUnknown * iface , QObject * parent = nullptr)

创建 QAxObject that wraps the COM object referenced by iface . parent is propagated to the QObject 构造函数。

[override virtual] QAxObject:: ~QAxObject ()

Releases the COM object and destroys the QAxObject , cleaning up all allocated resources.

[override virtual protected] void QAxObject:: connectNotify (const QMetaMethod & signal )

Reimplemented from QObject::connectNotify ().

bool QAxObject:: doVerb (const QString & verb )

Requests the COM object to perform the action verb . The possible verbs are returned by verbs ().

The function returns true if the object could perform the action, otherwise returns false.

This function was introduced in Qt 4.1.