title: Place QWidget's windows to other (than main window) X DISPLAY
body: <p>I have a Qt GUI application. Need to place one window presented as QWidget object to other X DISPLAY. For example <code>:1</code>. Main window and others always run on DISPLAY got from environment.</p>
  
  <p>How to place new QWindget window to other non-default X DIPSLAY.</p>
  
  <p><em>.thanks in adwance.</em></p>