[PyKDE] linux pyqt/pykde multithread application. How to send signal/ update state of app from non qt loop threads ?

Ismail Donmez ismail at pardus.org.tr
Thu Apr 13 15:47:29 BST 2006

Perşembe 13 Nisan 2006 17:27 tarihinde, Mateusz Korniak şunları yazmıştı: 
> I have multithread pyqt/pykde application.
> I leave first thread to run qt-loop.
> I want long execution time code to be run in different threads as in
> background. [1]
> How can I interact from those background threads with my qt GUI ? (send
> signal, update text in QLineEdit) ?

You can post an event from the thread using QApplication::postEvent [1] and 
process the event in main gui with QObject::customEvent [2] . Don't use 
signal/slots across threads , Xlib is not thread safe.

[1] http://doc.trolltech.com/3.3/qapplication.html#postEvent
[2] http://doc.trolltech.com/3.3/qobject.html#customEvent

Hope this helps,

<Terwou> \\o \o> <o/ o//
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