Problem : use QHttp get a file to QFile

[fengtian.we]

My code:

#include <QUrl>
 
NOTE: I run it step to step ( VS2005 debug function ).
 
#include <QtGui/QApplication>
#include <QHttp>
#include <QFile>
 
int main(int argc, char *argv[])
{
	QApplication *app=new QApplication(argc, argv);
	QFile *file=new QFile("index.php");
 
	if(!file->open(QIODevice::WriteOnly))                                 //file create
	{
		QMessageBox::information(0,"Get User's Profile","Error: Cannot open["+file->fileName()+"] "+file->errorString());
		return 0;
	}
	QUrl *url=new QUrl("http://localhost/a2gold/index.php");
	QHttp *http=new QHttp(url->host());
	http->get(url->path(),file);
	http->close();
	file->flush();                                                                    //Now,file is empty
 
	return app->exec();                                                         //since there,file is valid(have content)
}

#include <QUrl>

NOTE: I run it step to step ( VS2005 debug function ).

#include <QtGui/QApplication>
#include <QHttp>
#include <QFile>

int main(int argc, char *argv[])
{
	QApplication *app=new QApplication(argc, argv);
	QFile *file=new QFile("index.php");

	if(!file->open(QIODevice::WriteOnly))                                 //file create
	{
		QMessageBox::information(0,"Get User's Profile","Error: Cannot open["+file->fileName()+"] "+file->errorString());
		return 0;
	}
	QUrl *url=new QUrl("http://localhost/a2gold/index.php");
	QHttp *http=new QHttp(url->host());
	http->get(url->path(),file);
	http->close();
	file->flush();                                                                    //Now,file is empty

	return app->exec();                                                         //since there,file is valid(have content)
}

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why????

How can I get a valid(have content) file before the "return app->exec()"