title: Creating a wxWidgets GUI with multiple stages
body: <p>There's lots of information about creating different layouts, dialogues, even custom controls. However I've not been able to find out how to create a window that has multiple seperate "stages", like an installer, or many of Visual Studio's project wizards.</p>
  
  <p>I guess it could be done by keeping the information seperate from the controls and updating the information on stage changes as needed, then deleteing everything and recreating the window contents each time, but is this really the only and best way? Are there issues with the window size, layout, etc. that I will need to deal with that don't occur when everything is added in the frames constructor?</p>