摘要：
获得CWinApp 获得CMainFrame 获得CChildFrame 获得CDocument 获得CView在CWinApp中AfxGetMainWnd()m_pMainWndAfxGetMainWnd()->MDIGetActive()AfxGetMainWnd()->GetActiveFrame()SDI:AfxGetMainWnd()->GetActiveView()->GetDocument()MDI:AfxGetMainWnd()->MDIGetActive()->GetActiveView()->GetDocument()SDI:Afx 阅读全文
