qApp null if QCoreApplication defined in shared library

[magland]

If I do:

int main(int argc, char *argv[])
{
	QCoreApplication app(argc,argv);
	qDebug() << "qApp=" << qApp;
        ....
}

int main(int argc, char *argv[])
{
	QCoreApplication app(argc,argv);
	qDebug() << "qApp=" << qApp;
        ....
}

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The of course qApp is not null. But if define MyCoreApplication in a shared library (dll on windows), and I do

int main(int argc, char *argv[])
{
	MyCoreApplication app(argc,argv);
	qDebug() << "qApp=" << qApp;
        ....
}

int main(int argc, char *argv[])
{
	MyCoreApplication app(argc,argv);
	qDebug() << "qApp=" << qApp;
        ....
}

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Then qApp is NULL! That is not what I would expect. The problem is that I have qApp->applicationDirPath() calls all over the place, and (qApp->setProperty()), so I can't affort to not have access to qApp in the main app and in the shared lib.

If I do this hack...

int main(int argc, char *argv[])
{
	MyCoreApplication app(argc,argv);
	QCoreApplication app2(argc,argv);
	qDebug() << "qApp=" << qApp;
        ....
}

int main(int argc, char *argv[])
{
	MyCoreApplication app(argc,argv);
	QCoreApplication app2(argc,argv);
	qDebug() << "qApp=" << qApp;
        ....
}

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Then it works... however, I suspect I now have two versions of qApp, which is okay for qApp->applicationDirPath(), but not good for setProperty() on qApp.

So, is this the expected behavior (even for a shared (non-static) link to a dll)? If so, then what's a good work around.

Thanks!