How to wait till QNetworkReply gives a result

[Furkan]

Hello.

QString text = selectedText();
        text = text.trimmed();
	text.insert(0, "http://www.");
	QNetworkAccessManager *manager = new QNetworkAccessManager(this);
	QNetworkReply *reply = manager->head(QNetworkRequest(QUrl(text)));
	//QMessageBox::information(this,"asd","asdasd");
	QVariant variant = reply->header(QNetworkRequest::LocationHeader);
	if(!variant.isNull())
	{
	  QString truncatedURL = text;
	  if (text.length() > 18)
	  {
	    truncatedURL.truncate(15);
	    truncatedURL += "...";
	  }
 
	  //open selected text url in a new tab
	  a = new KAction(KIcon("tab-new"), i18n("Open '%1' in New Tab", truncatedURL), this);
	  a->setData(QUrl(text));
	  connect(a, SIGNAL(triggered(bool)), this, SLOT(openLinkInNewTab()));
	  menu.addAction(a);
 
	  //open selected text url in a new window
	  a = new KAction(KIcon("window-new"), i18n("Open '%1' in New Window", truncatedURL), this);
	  a->setData(QUrl(text));
	  connect(a, SIGNAL(triggered(bool)), this, SLOT(openLinkInNewWindow()));
	  menu.addAction(a);
 
	  menu.addSeparator();
	}

QString text = selectedText();
        text = text.trimmed();
	text.insert(0, "http://www.");
	QNetworkAccessManager *manager = new QNetworkAccessManager(this);
	QNetworkReply *reply = manager->head(QNetworkRequest(QUrl(text)));
	//QMessageBox::information(this,"asd","asdasd");
	QVariant variant = reply->header(QNetworkRequest::LocationHeader);
	if(!variant.isNull())
	{
	  QString truncatedURL = text;
	  if (text.length() > 18)
	  {
	    truncatedURL.truncate(15);
	    truncatedURL += "...";
	  }
	  
	  //open selected text url in a new tab
	  a = new KAction(KIcon("tab-new"), i18n("Open '%1' in New Tab", truncatedURL), this);
	  a->setData(QUrl(text));
	  connect(a, SIGNAL(triggered(bool)), this, SLOT(openLinkInNewTab()));
	  menu.addAction(a);
	  
	  //open selected text url in a new window
	  a = new KAction(KIcon("window-new"), i18n("Open '%1' in New Window", truncatedURL), this);
	  a->setData(QUrl(text));
	  connect(a, SIGNAL(triggered(bool)), this, SLOT(openLinkInNewWindow()));
	  menu.addAction(a);
	  
	  menu.addSeparator();
	}

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The purpose of the code is to check whether selected text is an URL to a web site or not. When I uncomment this line

//QMessageBox::information(this,"asd","asdasd");

//QMessageBox::information(this,"asd","asdasd");

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it works fine. But when I comment that line it doesn't! I think the application can have enough time to compute the QNetworkReply result. I don't know how to solve the problem, please help me!
Thanks in advance!

[mac.tieu]

Replace

//QMessageBox::information(this,"asd","asdasd");

//QMessageBox::information(this,"asd","asdasd");

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with

while (!reply->isFinished());

while (!reply->isFinished());

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To wait while request is being processed.

MT.

[tbscope]

Replace

//QMessageBox::information(this,"asd","asdasd");

//QMessageBox::information(this,"asd","asdasd");

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with

while (!reply->isFinished());

while (!reply->isFinished());

To copy to clipboard, switch view to plain text mode 

To wait while request is being processed.

MT.

That will block the program.
Instead, use signals and slots. http://doc.qt.nokia.com/4.7/qnetwork....html#finished

[wysota]

Or QEventLoop.