Can I create Splitter outside OnCreateClient ??

Hello,
Can I create Static Splitter outside

CMainFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext)



such as CMyAppView::OnCreate(...)



My problem is I don't know pContext is and what's the fuction that return it

My program have to create static splitter at runtime and may change number of
rows or columns depend on users so I have to create its outside OnCreateClient

Thanks in advance