在兩個線程之間共享QAxObject？

Question

假設一個對象在線程中運行。它有一個指向QAxObject實例和對象B的指針。對象B具有指向QAxObject的指針。

對象A創建一個線程並在其中移動對象B.

#ifndef OBJECTA_H 
#define OBJECTA_H 

#include <QtCore/QObject> 
#include <QtCore/QThread> 
#include <QAxObject> 

#include "ObjectB.h" 

class ObjectA : public QObject 
{ 
    Q_OBJECT 
public: 
    ObjectA(QObject *parent = 0) : QObject(parent) 
    { 
     thread = new QThread(); 
     activeX = new QAxObject(); 
     objectB = new ObjectB(activeX); 
     objectB->moveToThread(thread); 

     ObjectA::connect(objectB, SIGNAL(someSignal()), this, SLOT(someSlot())); 

     thread->start(); 
    } 

protected slots: 
    void someSlot(); 

private: 
    QThread *thread; 
    QAxObject *activeX; 
    ObjectB *objectB; 
}; 

#endif // OBJECTA_H 


#ifndef OBJECTB_H 
#define OBJECTB_H 

#include <QtCore/QObject> 
#include <QAxObject> 

class ObjectB : public QObject 
{ 
    Q_OBJECT 
public: 
    ObjectB(QAxObject *axObject, QObject *parent = 0) : QObject(parent) 
    { 
     activeX = axObject; 
    } 

signals: 
    void someSignal(); 

private: 
    QAxObject *activeX; 
}; 

#endif // OBJECTB_H 

對象B是否能夠與對象A共享的QAxObject一起工作？

我覺得這是不可能的。目前，我有這個錯誤：QAxBase: Error calling IDispatch member NewProject: Unknown error。

線程A和線程B都不能使用QAxObject。

有關這方面的任何信息？

Answer 1

以下是解釋：Access a COM object from a 3rd party dll across threads。

應該使用：

CoInitialize(0); 
CoInitializeEx(NULL, COINIT_MULTITHREADED);