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{ |
问：如何在MDI环境下枚举所有打开的窗口？
答：
In MFC, each CMDIChildWnd created by the Framework is managed as a child window of the MDIClient window. This MDIClient window is a child of the mainframe window and fills its client area. For MDI applications, the mainframe window is encapsulated by the CMDIFrameWnd class. This class has a public embedded HWND member (m_hWndMDIClient), which is the handle to the MDIClient window. For MDI applications, AppWizard derives the CMainFrame class from CMDIFrameWnd.
The MDIClient maintains an internal list of child Windows. In an MFC application, these child Windows are either a CMDIChildWnd object or an internal window used to display the title of an iconized window. Note that this is an internal list controlled by Windows; don't make assumptions about the ordering of children in the list after an API function is called.
//**mainfrm.h**************** //**mainfrm.cpp************** CMainFrame::~CMainFrame() |
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