>>>> not sure, if i am doing something completely wrong here. >>>> i'm using a QMainWindow with a QQuickView as central widget. the >>>> application does not make use of QApplication::exec, but i'm polling the >>>> event loop manually from the application. >>> >>> You're doing something wrong. Use exec(). >> >> afaict this is not possible when integrating a Qt event loop into the >> event loop of an existing application or when using a Qt from a plugin >> which is simply not allowed to have its own event loop. or am i missing >> something obvious? > > Find a way to use exec() anyway. Qt wants exec(). You must make that thread > use it: either by making the application use Qt's mainloop or by moving your > code to a thread.
i will see what i can do ... what do i need to do in order to run exec() from a thread other than the main thread? afaict it wants to be called from the main thread, so simply creating a std::thread to run qApp->exec() does not work. converting he application itself to use qt's main loop might be possible, but requires some non-trivial architectural changes. and for the case of a plugin, i think it is simply impossible, because afaict the plugin's gui has to run in the same thread as the host's gui. > At the very least, let us know if this problem happens with exec(). If it > does, then we potentially have a problem that we should fix. will see, maybe it can be reduced > If it doesn't happen with exec(), then we'll conclude it's the lack of using > exec() that is the problem and will probably do nothing. in this case, would it be possible to change the faq entry: http://qt-project.org/faq/answer/how_can_i_create_a_3rd_party_plugin_using_qt_that_performs_event_handling ? because point 2 is exactly the approach that i am following. tim _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
