我们知道每次加载word控件，都会导致后台启动一个WINWORD.EXE

如何安全退出呢

1、一个最简单的例子

QT       += core gui axcontainer

MainWindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H#include <QMainWindow>
#include <QAxWidget>
#include <QAxObject>QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACEclass MainWindow : public QMainWindow
{Q_OBJECTpublic:MainWindow(QWidget *parent = nullptr);~MainWindow();private:Ui::MainWindow *ui;QAxWidget *m_ax = nullptr;QAxObject *m_wordApp = nullptr;QAxObject *m_document = nullptr;// QWidget interface
protected:virtual void resizeEvent(QResizeEvent *event) override;
};#endif // MAINWINDOW_H

MainWindow.cpp

#include "MainWindow.h"
#include "ui_MainWindow.h"
#include <QAxObject>MainWindow::MainWindow(QWidget *parent): QMainWindow(parent), ui(new Ui::MainWindow)
{ui->setupUi(this);m_ax = new QAxWidget(this);m_ax->setControl("D:\\1.docx");m_wordApp = m_ax->querySubObject("Application");m_document = m_wordApp->querySubObject("Documents(int index)", 1);m_document->dynamicCall("Activate()");
}MainWindow::~MainWindow()
{delete ui;m_ax->clear();m_document->dynamicCall("Close()");m_wordApp->dynamicCall("Quit()");
}void MainWindow::resizeEvent(QResizeEvent *event)
{if (m_ax != nullptr){QRect rc = rect();m_ax->setGeometry(0, 0, rc.width(), rc.height());}
}