[Qt-interest] Widget does not update content after some time

[Damien R]

Brad Howes wrote:
  > Are you sure that setImage() is still being called after the updating
> fails? Or is there some kind of clipping that couild be invoked that 
> would cause the painting to fail?

Yes, I'm sure setImage is still being called. As Bradley Smith has 
mentioned, I have to use signal/slot to update the widget.