单文档分割窗口

重载
BOOL CMainFrame::OnCreateClient(LPCREATESTRUCT lpcs, CCreateContext* pContext) 
{
if (!m_NanSplitterWnd.CreateStatic(this, 1, 2)) 
return false;
if (!m_NanSplitterWnd.CreateView(0, 0, RUNTIME_CLASS(CFormviewDlg), CSize(100,200), pContext)) 
return false;
if (!m_NanSplitterWnd.CreateView(0, 1, pContext->m_pNewViewClass, CSize(200,200), pContext)) 
return false;

return true;
}

注意
return true;