应用程序关闭后，Qt进程保留在内存中 [英] Qt process stays in memory after application closes

问题描述

我有一个简单的应用程序启动QDialog从它的主要像这样：

i have simple application that start QDialog from its main like this :

int main(int argc, char *argv[])
 {
     Q_INIT_RESOURCE(resources); 
     QApplication app(argc, argv);
     QCoreApplication::setApplicationName(APP_NAME);
     QCoreApplication::setApplicationVersion(APP_VERISON);
     QCoreApplication::setOrganizationDomain(APP_DOMAIN);
     app.setStyle("WindowsXP");    
     QTextCodec::setCodecForTr(QTextCodec::codecForName("utf8"));
     QTextCodec::setCodecForCStrings(QTextCodec::codecForName("UTF-8"));

         AuthenticationDialogContainer *pAuthenticationDialogContainer = new AuthenticationDialogContainer();
     if(pAuthenticationDialogContainer->exec() != QDialog::Accepted ) {
         return 0;
     }



     return app.exec();
}

<和应用程序做什么是假设做。当我打开windows xp任务管理器，我看到的过程仍然在内存中，我需要手动杀死它。如何防止它发生？

when its pass the end of the application that is after app.exec() and the application doing what is suppose to do . when i open the windows xp task manager i see that the process is still in memory and i need manually kill it . how can i prevent it from happening ?

推荐答案

QDialog :: exec是一个阻塞调用：此代码显示并关闭对话框QApplication开始。

您可以使用QDialog :: show并处理QDialog :: accept方法中的返回代码。

QDialog::exec is a blocking call: this code show and close the dialog before the QApplication start.
You can use QDialog::show and handle the return code in QDialog::accept method.

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