title: Qt - Show second Window from Mainwindow
body: <p>I'm trying to show a second (Tool-)window from a Mainwindow. This should be really basic, but my solution doesn't seem to work (maybe I just can't see it?!).</p>
  
  <pre><code>MainWindow::MainWindow(QWidget *parent)
  : QMainWindow(parent)
  {
      //...
  
      parametersWindow = new NoiseParamtersWindow;
      parametersWindow-&gt;show();
      parametersWindow-&gt;raise();
  
  }
  </code></pre>
  
  <p>Any help is appreciated </p>