xPeer = (XWindowPeer)UnoRuntime.queryInterface(XWindowPeer.class,xToolkit.createWindow(aDescriptor));
} catch (IllegalArgumentException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
XWindow xWindow = (XWindow)UnoRuntime.queryInterface(XWindow.class,xPeer);
//define some further properties of the frame window
//if it's needed .-)
//xPeer->setBackground(...);