QProgress bar - Busy Indicator - Strange behaviour

[johnnyturbo3]

I'm trying to add a Progress bar as a busy indicator. However, it's behaving strange - the 'progress' only goes a quarter of the way up the bar and then restarts at the beginning. I'm using the following code:

test.cpp

test::test()
{
QProgressBar *qProBar = new QProgressBar;
qProBar->setRange(0,0);

QVBoxLayout *mainLayout = new QVBoxLayout();
mainLayout->addWidget(qProBar);

setLayout(mainLayout);
}

test.h

class test : public QWidget
{
Q_OBJECT

public:
test();
~test();
};

I couldn't find any similar problems on the net, and the code is as minimal as it can get. Any ideas? Thanks in advance!

[AlexSudnik]

What's the point of setting the bar's range to 0 ? :confused:.

[johnnyturbo3]

http://doc.trolltech.com/latest/qprogressbar.html#details

"If minimum and maximum both are set to 0, the bar shows a busy indicator instead of a percentage of steps. This is useful, for example, when using QFtp or QNetworkAccessManager to download items when they are unable to determine the size of the item being downloaded."

[AlexSudnik]

Ah , now i see. Works fine for me though...indicator runs the whole path repeatedly. Do you have any problems with displaying other widgets or it only happens with QStatusBar?

[johnnyturbo3]

Strange. I'm using Visual Studio 2010. I tried running my app under Release rather than Debug and the progress bar works as expected.
Thanks anyway.