No cancel button in QProgressDialog

Dear all,

I don't want the cancel button to show up in my progress dialog. If you pass
a 0 for the cancelButtonText in the constructor, the button should go away.
Here's what I do

progress = QProgressDialog ('Rendering...', QString(0), 0, 100)

But the button still appears. Any clues on how to go about this?

running:

PyQt-x11-gpl-4.4.3
qt-x11-opensource-src-4.4.1

Best regards,

Mads

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