title: Dockable panes created in CChildFrame not visible the second time the app. starts
body: <p>I have created some dockable panes in CChildFrame::OnCreate()
  The first time i start the application they are shown.
  The second time i start the application they are created but the splitterwindows are completly against the sides of the clients area (bottom and right), so not visible. So i have to use the mouse to pull the splitters into the clientarea so that the dockable windows become visible again.
  If i do File->New in my app a new client window is created and showing the dockable windows as they should be. I Think this has something to do with saving the windows layout in the registry, because if i change SetRegistryKey(_T("61sakjgsajkdg")); in the CWinApp derived class of my app. and rerun they are shown again the first time. (but not the second time i restart the app).
  How can i save the layout of those dockable windows as well, so if i restart my app. they are visible ? Or else how do i prevent my app. of overwritting the window layout with the one previously saved. Something to do with LoadCustomState() and SaveCustomState() ?, i could no find any info on howto implement those methods. I have here a link to the demo project to demonstrate what i mean: </p>
  
  <p><a href="http://www.4shared.com/file/237193472/c384f0f6/GUI60.html" rel="nofollow noreferrer">http://www.4shared.com/file/237193472/c384f0f6/GUI60.html</a></p>
  
  <p>Could someone tell me how to show those dockable windows in my CChildFrame class the second time the app starts?</p>