QT5.7版本使用activeX出现重定义

zhkmxx930

QT套件 5.7.1 + MinGW32 5.3.0版本

.pro文件配置如下

1. #-------------------------------------------------
   
2. #
   
3. # Project created by QtCreator 2017-11-07T21:02:30
   
4. #
   
5. #-------------------------------------------------
   
6. 
   
7. QT       += core gui
   
8. QT      += axcontainer
   
9. greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
   
10. 
    
11. TARGET = testActivX
    
12. TEMPLATE = app
    
13. 
    
14. # The following define makes your compiler emit warnings if you use
    
15. # any feature of Qt which as been marked as deprecated (the exact warnings
    
16. # depend on your compiler). Please consult the documentation of the
    
17. # deprecated API in order to know how to port your code away from it.
    
18. DEFINES += QT_DEPRECATED_WARNINGS
    
19. 
    
20. # You can also make your code fail to compile if you use deprecated APIs.
    
21. # In order to do so, uncomment the following line.
    
22. # You can also select to disable deprecated APIs only up to a certain version of Qt.
    
23. #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
    
24. 
    
25. 
    
26. SOURCES += main.cpp\
    
27.         mainwindow.cpp
    
28. 
    
29. HEADERS  += mainwindow.h
    
30. 
    
31. FORMS    += mainwindow.ui
    

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在main.cpp中直接调用QAxWidget

1. #include "mainwindow.h"
   
2. #include <QApplication>
   
3. #include <QAxWidget>
   
4. #include <QDebug>
   
5. 
   
6. int main(int argc, char *argv[])
   
7. {
   
8.     QApplication a(argc, argv);
   
9.     QAxWidget *motor =new QAxWidget(0,0);
   
10.     motor->resize(600,500);
    
11.     qDebug()<<"before set control code";
    
12.     motor->setControl(QString::fromUtf8("{7EEBDE39-6447-41EC-89D8-94A754092050}"));
    
13.     motor->setWindowTitle("the motor of APT");
    
14.     const int SN=71864678;
    
15.     QVariant qsn(SN);
    
16.     qDebug()<<qsn;
    
17.     motor->setProperty("HWSerialNum",qsn);
    
18.     qDebug()<<motor->property("HWSerialNum");
    
19.     qDebug()<<"after set control code";
    
20.     motor->dynamicCall("StartCtrl()");
    
21.     motor->show();
    
22. 
    
23.     return a.exec();
    
24. }
    

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结果编译出现错误

请问是什么原因

zhkmxx930

只要new QAxWidget的对象，就会出现这个错误