想用qt activex引入solidworks的打开文件功能

  //引入sw com

    QAxObject* swapp; //程序指针

    QAxObject* moddoc;//文件指针

    QAxObject* moddraw;//2d文件指针

    QAxObject* modasm;//装配体文件指针

    swapp = new QAxObject();

    bool ab = swapp->setControl("sldworks.Application");

    if (!ab)

    {

        QMessageBox warning;

        warning.setText("upload COM wrong!");

    }

   else

    {

        // 打开文件

        int m_warning = 0;

        int m_error = 0;

        QString sourcefile = ui->lineEdit_input->text();

        moddoc = swapp->querySubObject("OpenDoc6(string^,int,int,string^,int,int)",QVariant(sourcefile),"2","1","",QVariant(m_warning),QVariant(m_error));

        qDebug()<<moddoc->querySubObject("GetPathName()");

      //  ui->label->setText(test);

       //保存格式

       //关闭文件

    }

下面是编译报错