Member 12282738 wrote: So I assume that OnInitalUpdate is called automaticaly and I don't need to do anything to invoke it but where would I put the override code in CFormRight : public CFormView or COpenGLControl : public CWnd ? Yes, it is called automatically. Note that if you do not override the OnInitalUpdate in your derived class then the base class implementation will be called. And note, that OnInitalUpdate is a method of a CView, not a CDialog. So - override it in CFormRight class.

??? Richard, Was this post meant for me? I NEVER use OnDraw directly, and my App is not at all based on Code Project Articles! I am just feeling around on my own, to solve a particular problem. If it IS meant for me a sentence containing "Wrong End" and "Stick" springs to mind! About Code Project Articles, I Only suggested, that, if I ever get this to work, that it merits me submitting an article about how to avoid the pittfals! :) Bram van Kampen