[Qt-interest] QFile* threads

[Thiago Macieira]

_h_ wrote:
>Hi Thiago Macieira,
>
>>>Can anybody explain, how following can be implemented in Qt...
>>>- allow to stop QFile threads temporarily when the QFileDialog is
>>>hidden and start them when QFileDialog shown again.
>>
>> You cannot do that. There's no API to do that.
>
>Is there any technical reason.

No. It's just that we didn't add the API. If we didn't add the API, it 
doesn't exist.

It was never foreseen that someone might try to do what you're trying to 
do. File dialogs were conceived to be created when needed and disposed of 
shortly afterwards. I would argue that you're misusing the API by keeping 
them around. When you misuse the API, you find out that it's unsuitable for 
the task at hand.

In any case, the point is that you can't do what you've asked because 
there's no API for that in Qt. So you have these options at this point:

a) live with it, letting these threads running

b) modify Qt to add an API that would let you stop the threads; you're on 
your own in this case and we will not be able to help you

c) redesign your code so that you don't have the thread problem in the 
first place

-- 
Thiago Macieira - thiago.macieira (AT) nokia.com
  Senior Product Manager - Nokia, Qt Software
      Sandakerveien 116, NO-0402 Oslo, Norway
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