[Interest] QSerialport EV_RXCHAR not emitted or catched while moving window

[Riccardo Roasio]

Sorry..so what you think i have do do?



Il 15 marzo 2012 14:26, Samuel Gaist <samuel.gaist at edeltech.ch> ha scritto:
> I must say, I don't understand your use of QSerialPort.
>
> You are waiting on data coming from the serial port, aren't you ?
> So, why not just connect to the readyRead signal ?
>
> On 15 mars 2012, at 14:07, Riccardo Roasio wrote:
>
>> the serial port class is this one:
>>
>> http://www.google.it/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CCwQFjAA&url=http%3A%2F%2Fgitorious.org%2Finbiza-labs%2Fqserialport&ei=8OhhT_vNGY6KhQeg6tieCA&usg=AFQjCNF7vwKcu_dJz8y-QE6ziYhoPe4uNw&sig2=adTbs9FuJPYZhrNXtnfALg
>>
>> it expect a EV_RXCHAR event on receiving something on the serial port
>> so it reimplements the QWidget event function:
>>
>> bool WinSerialPortEngine::event(QEvent *e)
>> {
>> //   qDebug()<<"event "<<e<<" "<<e->type();
>>    bool ret = false;
>>    if (e->type() == QEvent::WinEventAct) {
>>        if (EV_ERR & m_currentMask & m_setMask) {
>>            m_parent->canErrorNotification();
>>            ret = true;
>>        }
>>
>>        if (EV_RXCHAR & m_currentMask & m_setMask)
>>        {
>>            m_parent->canReadNotification();
>>            ret = true;
>>        }
>>
>>        //FIXME: This is why it does not work?
>>        if (EV_TXEMPTY & m_currentMask & m_setMask) {
>>            m_parent->canWriteNotification();
>>            ret = true;
>>        }
>>    }
>>    else
>>    {
>>         ret = QWinEventNotifier::event(e);
>>    }
>>
>>    ::WaitCommEvent(m_descriptor, &m_currentMask, &m_ov);
>>    return ret;
>> }
>>
>> the problem is that while receiving events like the
>> QEvent::NonClientAreaMouseButtonPres on the gui thread it stop
>> receivng EV_RXCHAR event on the serial port class
>>
>>
>>
>> Il 15 marzo 2012 12:53, Samuel Gaist <samuel.gaist at edeltech.ch> ha scritto:
>>>
>>> On 15 mars 2012, at 12:37, Riccardo Roasio wrote:
>>>
>>>> Hi,
>>>>
>>>> i have a program with :
>>>>
>>>> - a main thread
>>>> - a serial manager thread using Qserialport
>>>>
>>>> i noticed that if i move the main gui the EV_RXCHAR event is not fired
>>>> or cached...
>>>>
>>>> what's wrong?
>>>>
>>>> thanks,
>>>> Riccardo
>>>> _______________________________________________
>>>> Interest mailing list
>>>> Interest at qt-project.org
>>>> http://lists.qt-project.org/mailman/listinfo/interest
>>>
>>> Hi,
>>>
>>> With so few information, we won't be really be able to help you.
>>> But here is a few questions:
>>> - How is your serial manager thread implemented ? (My guess: run reimplementation)
>>> - Do you have signals slots directly connected ?
>>>
>>> Hope this helps
>>> Samuel
>>>
>>> PS:
>>> Did you also read this article ?
>>> http://labs.qt.nokia.com/2010/06/17/youre-doing-it-wrong/
>>>
>>> And there where a few discussions on the qt-nokia mailing list last year about threading, you might want to look for them
>>>
>