Hi Maurice, I have tried to create a pthread (I have tried on a Mac) but when the plugin is opened, the app hang and crashes.
So far I have managed to simply instantiate a QtApplication inside the plugin app without calling exec and the window opens and the ui reacts to changes. I have the the plugin class extend q_object and it receives signals from the qt app. I don't know what are the limitations of the current approach. Any thoughts? Regards, Nuno > On 10/11/2014, at 06:44, Kalinowski Maurice > <maurice.kalinow...@theqtcompany.com> wrote: > > Hi, > > there was a discussion about using Qt5 as a plugin in the past on this > mailing list. Just check the archive. > > In general, for VST2 your implementation of AEffEditor::open() should create > the thread creating the application object and invoking exec(). That is the > latest point you can use before it has to be created. > > Not sure if you need to have Windows supported for your project, but if you > do then you need to take care that the arguments passed to your own > qapplication object are exactly the same the host has been given > (GetCommandLineA(),...). I remember some checks via GetCommandLineA and not > using QCoreApplication::arguments() and hence the mismatch caused an assert. > > BR, > Maurice > >> -----Ursprüngliche Nachricht----- >> Von: interest-bounces+maurice.kalinowski=theqtcompany....@qt-project.org >> [mailto:interest-bounces+maurice.kalinowski=theqtcompany.com@qt- >> project.org] Im Auftrag von Nuno Santos >> Gesendet: Sunday, 2 November, 2014 7:17 PM >> An: Interests Qt >> Betreff: Re: [Interest] Opening Qt/Qml window inside host app >> >> It seems that I was doing something wrong and now I can open the Qt/Qml >> window inside the plugin but it blocks the program because i'm calling >> app.exec(); >> >> I need to move the execution of the app to another thread, I believe. Qt base >> probably does the same within an iOS app, right? >> >> Any thoughts about the best way to do this? >> >> Thanks, >> >> Regards, >> >> Nuno >> >> On 02 Nov 2014, at 18:00, Nuno Santos <nunosan...@imaginando.pt> wrote: >> >>> Hi, >>> >>> I was wondering if it is possible to instantiate and open a Qt/Qml window >> inside a host app via plugin loading mechanism. >>> >>> I'm trying to make a VST plugin have a Qml window for editing. The plugin is >> loaded by the host app. >>> >>> I have tried to do it on the plugin instantiation with the following code: >>> >>> QQmlApplicationEngine engine; >>> engine.load(QUrl(QStringLiteral("qrc:/main.qml"))); >>> >>> But the host app crashes as soon as this code is called. >>> >>> Any thoughts? >>> >>> Thanks, >>> >>> Regards, >>> >>> Nuno Santos >>> _______________________________________________ >>> Interest mailing list >>> Interest@qt-project.org >>> http://lists.qt-project.org/mailman/listinfo/interest >> >> _______________________________________________ >> Interest mailing list >> Interest@qt-project.org >> http://lists.qt-project.org/mailman/listinfo/interest _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
