[vtkusers] QApplication::palette() failed

[Adam Hooper]

I've written the following test for QVTKWidget:

-----
#include <QtGui/QApplication>

#include <QVTKWidget.h>

int main(int argc, char *argv[])
{
	QApplication app(argc, argv);

	QVTKWidget widget;
	widget.show();

	return app.exec();
}
-----

On Linux, this compiles and runs just fine (as one would expect). On
Windows, it fails with the following error:

QApplication::palette() failed: please instantiate the QApplication
object first.

QPaintDevice: Must construct a QApplication before a QPaintDevice

I've tried making a QObject class which instantiates the QVTKWidget, and
called that in an event handler using app.postEvent() (thus
instantiating the QVTKWidget from within app.exec()), but the error
persists. I simply can't find a way to start a program with a QVTKWidget
in it.

Does anybody else experience this problem or know what's wrong? I'm
using Qt 4.0.0 under the Evaluation License.

-- 
Adam Hooper <adamh at densi.com>
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