Qt-interest Archive, June 2007
Idle-detection
Message 1 in thread
I found threads for this, but they all seem very old (5+ years), so
maybe something has changed.
Is there a way through Qt to detect when a user goes idle (stops
typing, moving mouse, etc.) regardless if the Qt app has focus or
not? Nothing is apparent from the docs...
Thanks,
Bruno
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Message 2 in thread
in what doc did you search events handle?
begin with this and after that, search again in the doc..... :-)
http://doc.trolltech.com/4.3/eventsandfilters.html
Bruno Trindade a écrit :
> I found threads for this, but they all seem very old (5+ years), so
> maybe something has changed.
>
> Is there a way through Qt to detect when a user goes idle (stops
> typing, moving mouse, etc.) regardless if the Qt app has focus or
> not? Nothing is apparent from the docs...
>
> Thanks,
> Bruno
>
> --
> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with
> "unsubscribe" in the subject or the body.
> List archive and information: http://lists.trolltech.com/qt-interest/
>
>
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Message 3 in thread
Hi Veronique, thanks for your response.
Qt events only help me when my Qt-based application has focus. I
need to be able to detect system-wide if the user has gone idle, even
if the app is minimized or whatever. I suspect I'll need platform-
specific code for this, but I'm trying to avoid that if possible.
Cheers,
Bruno
On Jun 19, 2007, at 12:33 PM, veronique.lefrere@xxxxxx wrote:
> in what doc did you search events handle?
>
> begin with this and after that, search again in the doc..... :-)
> http://doc.trolltech.com/4.3/eventsandfilters.html
>
>
> Bruno Trindade a écrit :
>
>> I found threads for this, but they all seem very old (5+ years),
>> so maybe something has changed.
>>
>> Is there a way through Qt to detect when a user goes idle (stops
>> typing, moving mouse, etc.) regardless if the Qt app has focus or
>> not? Nothing is apparent from the docs...
>>
>> Thanks,
>> Bruno
>>
>> --
>> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx
>> with "unsubscribe" in the subject or the body.
>> List archive and information: http://lists.trolltech.com/qt-interest/
>>
>>
>
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> with "unsubscribe" in the subject or the body.
> List archive and information: http://lists.trolltech.com/qt-interest/
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Message 4 in thread
What platform? For X11 you can use derive from QApplication and
reimplement ::x11EventFilter which gets events for the whole server
(within the QApplication of course). I don't know what you'd do for Mac
or Windows.
HTH,
Susan
Bruno Trindade wrote:
> Hi Veronique, thanks for your response.
>
> Qt events only help me when my Qt-based application has focus. I need
> to be able to detect system-wide if the user has gone idle, even if
> the app is minimized or whatever. I suspect I'll need
> platform-specific code for this, but I'm trying to avoid that if
> possible.
>
> Cheers,
> Bruno
>
>
> On Jun 19, 2007, at 12:33 PM, veronique.lefrere@xxxxxx wrote:
>
>> in what doc did you search events handle?
>>
>> begin with this and after that, search again in the doc..... :-)
>> http://doc.trolltech.com/4.3/eventsandfilters.html
>>
>>
>> Bruno Trindade a écrit :
>>
>>> I found threads for this, but they all seem very old (5+ years), so
>>> maybe something has changed.
>>>
>>> Is there a way through Qt to detect when a user goes idle (stops
>>> typing, moving mouse, etc.) regardless if the Qt app has focus or
>>> not? Nothing is apparent from the docs...
>>>
>>> Thanks,
>>> Bruno
>>>
>>> --
>>> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx
>>> with "unsubscribe" in the subject or the body.
>>> List archive and information: http://lists.trolltech.com/qt-interest/
>>>
>>>
>>
>> --
>> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx
>> with "unsubscribe" in the subject or the body.
>> List archive and information: http://lists.trolltech.com/qt-interest/
>
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>
>
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Message 5 in thread
Forgot to mention that you'd use this in conjunction with a QTimer. If
you get events, you reset the timer. If the timer times out, you've
received no events.
Susan Macchia wrote:
> What platform? For X11 you can use derive from QApplication and
> reimplement ::x11EventFilter which gets events for the whole server
> (within the QApplication of course). I don't know what you'd do for
> Mac or Windows.
>
> HTH,
> Susan
>
> Bruno Trindade wrote:
>> Hi Veronique, thanks for your response.
>>
>> Qt events only help me when my Qt-based application has focus. I
>> need to be able to detect system-wide if the user has gone idle, even
>> if the app is minimized or whatever. I suspect I'll need
>> platform-specific code for this, but I'm trying to avoid that if
>> possible.
>>
>> Cheers,
>> Bruno
>>
>>
>> On Jun 19, 2007, at 12:33 PM, veronique.lefrere@xxxxxx wrote:
>>
>>> in what doc did you search events handle?
>>>
>>> begin with this and after that, search again in the doc..... :-)
>>> http://doc.trolltech.com/4.3/eventsandfilters.html
>>>
>>>
>>> Bruno Trindade a écrit :
>>>
>>>> I found threads for this, but they all seem very old (5+ years),
>>>> so maybe something has changed.
>>>>
>>>> Is there a way through Qt to detect when a user goes idle (stops
>>>> typing, moving mouse, etc.) regardless if the Qt app has focus or
>>>> not? Nothing is apparent from the docs...
>>>>
>>>> Thanks,
>>>> Bruno
>>>>
>>>> --
>>>> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx
>>>> with "unsubscribe" in the subject or the body.
>>>> List archive and information: http://lists.trolltech.com/qt-interest/
>>>>
>>>>
>>>
>>> --
>>> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx
>>> with "unsubscribe" in the subject or the body.
>>> List archive and information: http://lists.trolltech.com/qt-interest/
>>
>> --
>> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx
>> with "unsubscribe" in the subject or the body.
>> List archive and information: http://lists.trolltech.com/qt-interest/
>>
>>
>
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Message 6 in thread
You can do the same on Windows using the QApplication winEventFilter (and on mac there is the macEventFilter...
Though I found it interesting, that the winEvent and x11Event filters are in different plaes... winEvent is in QCoreApp and x11 and mac are in QApp
I would think it would be pretty easy to wrap it inside QApplication and #ifdef the correct code per platform, and send out a custom QEvent..
Scott
> -----Original Message-----
> From: Susan Macchia [mailto:qt-list@xxxxxxxxxxxxx]
> Sent: Tuesday, June 19, 2007 10:13 AM
> To: Bruno Trindade
> Cc: Qt-interest
> Subject: Re: Idle-detection
>
> What platform? For X11 you can use derive from QApplication and
> reimplement ::x11EventFilter which gets events for the whole server
> (within the QApplication of course). I don't know what you'd do for Mac
> or Windows.
>
> HTH,
> Susan
>
> Bruno Trindade wrote:
> > Hi Veronique, thanks for your response.
> >
> > Qt events only help me when my Qt-based application has focus. I need
> > to be able to detect system-wide if the user has gone idle, even if
> > the app is minimized or whatever. I suspect I'll need
> > platform-specific code for this, but I'm trying to avoid that if
> > possible.
> >
> > Cheers,
> > Bruno
> >
> >
> > On Jun 19, 2007, at 12:33 PM, veronique.lefrere@xxxxxx wrote:
> >
> >> in what doc did you search events handle?
> >>
> >> begin with this and after that, search again in the doc..... :-)
> >> http://doc.trolltech.com/4.3/eventsandfilters.html
> >>
> >>
> >> Bruno Trindade a écrit :
> >>
> >>> I found threads for this, but they all seem very old (5+ years), so
> >>> maybe something has changed.
> >>>
> >>> Is there a way through Qt to detect when a user goes idle (stops
> >>> typing, moving mouse, etc.) regardless if the Qt app has focus or
> >>> not? Nothing is apparent from the docs...
> >>>
> >>> Thanks,
> >>> Bruno
> >>>
> >>> --
> >>> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx
> >>> with "unsubscribe" in the subject or the body.
> >>> List archive and information: http://lists.trolltech.com/qt-interest/
> >>>
> >>>
> >>
> >> --
> >> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx
> >> with "unsubscribe" in the subject or the body.
> >> List archive and information: http://lists.trolltech.com/qt-interest/
> >
> > --
> > To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with
> > "unsubscribe" in the subject or the body.
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> >
> >
>
>
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>
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>
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>
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Message 7 in thread
"Bruno Trindade" <bruno@xxxxxxxxx> wrote in message
news:EE6BC074-9CB2-4F27-8162-BF5A6AFBA133@xxxxxxxxxxxx
>I found threads for this, but they all seem very old (5+ years), so
>maybe something has changed.
>
> Is there a way through Qt to detect when a user goes idle (stops
> typing, moving mouse, etc.) regardless if the Qt app has focus or not?
> Nothing is apparent from the docs...
>
> Thanks,
> Bruno
You could connect to QAbstractEventDispatcher::aboutToBlock, which
indicates that there are no more messages in the queue. This is not only
user messages though, there is no API in Qt that would be equivalent to
MFC's OnIdle.
Volker
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